A shield machine cutter box mud cake detection and removal device and shield machine

Abstract

The present invention discloses a shield machine cutter box mud cake detection and removal device. A plurality of cutter boxes are arranged on the cutter disc at one end of the shield machine. The cutter is arranged in the cutter box. The shield machine is provided with a mud cake detection mechanism, a hydraulic cleaning mechanism, a self-rotation auxiliary mechanism, a recovery mechanism and a control mechanism. The mud cake detection mechanism includes a speed sensor and an infrared sensor arranged in the cutter box. The hydraulic cleaning mechanism includes a high-pressure nozzle arranged in the cutter box. The self-rotation auxiliary mechanism includes a self-rotation motor for driving the cutter shaft. The recovery mechanism is placed at the bottom of the cutter disc to transfer the mud cake to the outside of the shield machine. The control mechanism is electrically connected to the whole machine to realize control. The device can realize the synchronous removal and discharge of the cutter mud cake during the tunneling process of the shield machine.

Description

Technical Field

[0001] The invention relates to the technical field of shield machine cleaning, in particular to a shield machine cutter box mud cake detection and removal device and a shield machine. Background Art

[0002] At present, shield machines are widely used in excavating underground tunnels and are well-known for their economy and safety. In the process of shield machine excavation, the cutter needs to continuously cut the soil so that the shield machine can move forward smoothly. However, due to the continuous increase in temperature during the cutting process or the failure of the slag improver to play a good role, part of the mud cake will form a mud cake and stick to the cutter box, causing the cutter torque to increase and the temperature to rise, which will eventually cause the cutter to wear and the shield machine to be forced to stop and replace the cutter, which will seriously affect the excavation speed of the shield machine and delay the construction period. The problem of cleaning the mud cake in the cutter box has not been well solved. The cleaning method in the prior art not only has insufficient cleaning ability, but also requires stopping for cleaning. However, when the shield machine passes through some construction areas, it needs to pass quickly and stably, and does not have the conditions for stopping for cleaning. Therefore, how to clean the mud cake formed in the cutter box without stopping the shield machine is a core problem to be solved in this field. Summary of the invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the background technology, the first purpose of the present invention is to disclose a shield machine cutter box mud cake detection and removal device;

[0004] The second purpose is to disclose a shield machine including the above-mentioned rotary cutter box mud cake detection and removal device.

[0005] Technical solution: The present invention discloses a shield machine cutter box mud cake detection and removal device, wherein a plurality of cutter boxes are arranged on the cutter head at one end of the shield machine, and the cutters are arranged in the cutter boxes. The shield machine is provided with a mud cake detection mechanism, a hydraulic cleaning mechanism, a self-rotation auxiliary mechanism, a recovery mechanism and a control mechanism;

[0006] The mud cake detection mechanism includes a speed sensor and an infrared sensor arranged in the cutter box of the roller cutter;

[0007] The hydraulic cleaning mechanism includes a high-pressure nozzle disposed in the hob cutter box;

[0008] The self-rotation auxiliary mechanism includes a self-rotation motor for driving the rotary shaft of the hob;

[0009] The recovery mechanism is placed at the bottom of the cutter head to transfer the mud cake to the outside of the shield machine;

[0010] The control mechanism is electrically connected to the whole machine to realize control.

[0011] Furthermore, the speed sensor is placed on one side of the hob, and transmits the speed and power data of the hob to the control mechanism, and determines whether the hob is working abnormally at that time through data comparison.

[0012] Furthermore, the infrared sensor is placed inside the cutter box of the roller to detect the position of the mud cake in the cutter box and transmit the data to the control mechanism.

[0013] Furthermore, the high-pressure nozzle is a nozzle with a rotatable nozzle, which is placed at the bottom of the hob cutter box, connected to the water tank through a high-pressure water pump and a water supply pipeline, and is controlled and operated by a control mechanism.

[0014] Furthermore, the self-rotating motor is a bidirectional motor, and its operation is controlled by a control mechanism.

[0015] Furthermore, the recovery mechanism includes a screw conveyor, a soil conveyor belt, and a mud suction machine; the screw conveyor is placed behind the cutter disc and connected to the soil conveyor belt to transport the soil out, and the mud suction machine is placed below the end of the screw conveyor to collect mud water and mud and transport them out through the mud conveying pipeline. The entire machine is controlled and operated by a control mechanism.

[0016] Furthermore, the control mechanism is located in the driver's cab of the shield machine and includes a control panel and a status display panel.

[0017] A shield machine comprising the above-mentioned shield machine cutter box mud cake detection and removal device.

[0018] Beneficial effects: Compared with the prior art, the advantages of the present invention are: first, the device can realize the synchronous removal and discharge of the cutter mud cake during the tunneling process of the shield machine; the speed sensor is used for data comparison to judge the blockage of the cutter, which is more real-time and accurate; the high-pressure flushing is combined with the forward and reverse rotation of the cutter, which is clean and efficient without stopping the operation, and can even improve the tunneling efficiency; the spiral conveyor combined with the mud suction machine can make the mud cake, mud water and mud slurry collected more thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the cutter head structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the hob cutter box of the present invention. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1-3The shield machine cutter box mud cake detection and removal device shown in the figure has a plurality of cutter boxes 2 arranged on the cutter disc at one end of the shield machine 1, and the cutter 3 is arranged in the cutter box 2. A mud cake detection mechanism, a hydraulic cleaning mechanism, a self-rotation auxiliary mechanism, a recovery mechanism and a control mechanism are arranged in the shield machine 1.

[0024] like Figure 3 As shown, the mud cake detection mechanism includes a speed sensor 4 and an infrared sensor 5 arranged in the hob box 2; the speed sensor 4 is placed on one side of the hob 3, and transmits the speed and power data of the hob 3 to the control mechanism, and judges whether the hob 3 is working abnormally at that time by comparing and analyzing with the normal working data.

[0025] The infrared sensor 5 is placed inside the roller cutter box 2, detects the location of the mud cake in the box through hot spots, and transmits the data to the control mechanism.

[0026] The hydraulic cleaning mechanism includes a high-pressure nozzle 6 arranged in the hob cutter box 2; the high-pressure nozzle 6 is a nozzle with a rotatable nozzle, which is placed at the bottom of the hob cutter box 2 and connected to the water tank through a high-pressure water pump 8 and a water pipe 9 to ensure that the system layout in the pipeline is reasonable, the connection is firm, and water leakage and leakage are avoided. The control mechanism controls the operation to flush every corner of the cutter box. After the installation is completed, the hydraulic cleaning device is tested and debugged. Start the water pump to ensure that the water flows normally, and check the spray effect and angle of the nozzle. Adjust the parameters such as the flow rate and pressure of the water pump to meet the cleaning requirements.

[0027] The self-rotation auxiliary mechanism includes a self-rotation motor 7 for driving the rotary shaft of the roller cutter; the self-rotation motor 7 is a bidirectional motor, which is controlled by a control mechanism and can control the self-rotation of the roller cutter or even forward and reverse rotation as needed, which can not only improve the excavation efficiency but also help to clear the mud cake.

[0028] The recovery mechanism is placed at the bottom of the cutter disc to transfer the mud cake to the outside of the shield machine; the recovery mechanism includes a screw conveyor 10, a soil conveyor belt 11, and a mud suction machine 12; the screw conveyor 10 is placed behind the cutter disc to connect to the soil conveyor belt 11 to transport the soil out, and the mud suction machine 12 is placed below the end of the screw conveyor 10 to collect muddy water and mud and transport them out through the mud conveying pipe 13. The entire machine is controlled and operated by a control mechanism.

[0029] The control mechanism is electrically connected to the whole machine to realize control; the control mechanism is located in the driver's cab 14 of the shield machine and includes a control panel and a status display panel.

[0030] When the speed sensor detects that the running speed or power of the roller cutter 3 is abnormal, it will be reflected in the status display panel, and the staff will confirm the position of the mud cake through the infrared sensor 5, control the high-pressure nozzle 6 to flush, and control the forward and reverse rotation of the roller cutter 3 to assist in cleaning the mud cake; the cleaned mud cake is transported out through the screw conveyor 10 and the soil conveyor belt 11, and the mud water and mud are sucked out by the mud suction machine 12.

Claims

1. A shield machine cutter box mud cake detection and removal device, wherein a plurality of cutter boxes (2) are arranged on a cutter head at one end of a shield machine (1), and a cutter (3) is arranged in the cutter box (2), characterized in that: The shield machine (1) is provided with a mud cake detection mechanism, a hydraulic cleaning mechanism, a self-rotation auxiliary mechanism, a recovery mechanism and a control mechanism; The mud cake detection mechanism comprises a speed sensor (4) and an infrared sensor (5) which are arranged in the roller cutter box (2); The hydraulic cleaning mechanism comprises a high-pressure nozzle (6) arranged in the hob cutter box (2); The self-rotation auxiliary mechanism comprises a self-rotation motor (7) for driving the roller cutter shaft; The recovery mechanism is placed at the bottom of the cutter head to transfer the mud cake to the outside of the shield machine; The control mechanism is electrically connected to the whole machine to achieve control; The speed sensor (4) is placed on one side of the hob (3) to transmit the speed and power data of the hob (3) to the control mechanism, and judges whether the hob (3) is working abnormally at that time by comparing the data; The infrared sensor (5) is placed inside the roller cutter box (2) to detect the location of the mud cake inside the box and transmit the data to the control mechanism; The high-pressure nozzle (6) is a nozzle with a rotatable nozzle, which is placed at the bottom of the hob cutter box (2), connected to the water tank via a high-pressure water pump (8) and a water pipe (9), and is controlled by a control mechanism; The recovery mechanism comprises a screw conveyor (10), a soil conveyor belt (11), and a mud suction machine (12); the screw conveyor (10) is arranged behind the cutter disc and docked with the soil conveyor belt (11) to transport the soil out; the mud suction machine (12) is arranged below the end of the screw conveyor (10) to collect muddy water and mud and transport them out through a mud conveying pipeline (13); the entire machine is controlled and operated by a control mechanism.

2. The shield machine cutter box mud cake detection and removal device according to claim 1 is characterized in that: The self-rotating motor (7) is a bidirectional motor, and its operation is controlled by a control mechanism.

3. The shield machine cutter box mud cake detection and removal device according to claim 1 is characterized in that: The control mechanism is located in a driver's cab (14) of the shield machine and comprises a control panel and a status display panel.

4. A shield machine comprising the shield machine cutter box mud cake detection and removal device according to claim 1.

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