Monitoring Method and Device for Main Bearing of Shield Machine

Abstract

The present invention provides a monitoring method and device for a main bearing of a shield machine. The method includes: using a plurality of sensors arranged on the end face of the internal gear ring of the main bearing of the shield machine and on the outer ring of the main bearing to obtain the monitoring signals of the internal gear ring; determining the impact monitoring result of the main bearing of the shield machine according to the monitoring signals of the internal gear ring; obtaining the operation attitude data of the main bearing of the shield machine according to the distribution position information of each sensor and the monitoring signals of the internal gear ring; and obtaining the monitoring result of the main bearing of the shield machine according to the impact monitoring result and the operation attitude data of the main bearing of the shield machine. By monitoring and analyzing abnormal signals in real time during the operation of the main bearing, the present invention evaluates whether the main bearing needs to be repaired or replaced, gives early warnings for local anomalies and excessive impact loads, accurately and timely discovers the fault conditions of the main bearing, reduces the construction risks caused by the direct failure of the main bearing, and improves the operation reliability of the shield machine.

Description

Technical Field

[0001] The present invention relates to the technical field of shield machine monitoring, and particularly to a monitoring method and device for the main bearing of a shield machine. Background Art

[0002] As a key core component of a shield machine, the main drive bearing continuously bears huge axial forces, radial forces, and overturning moments during the tunneling process of the shield machine. At the same time, it will also be subjected to impact loads transmitted from the cutter head. Affected by factors such as load, bearing clearance, wear, and installation accuracy, there may be a certain degree of skew between the internal gear ring of the main bearing and the bearing outer ring. If the continuously applied overturning moment is too large or excessive instantaneous impact loads are received, the skew angle between the internal gear ring and the bearing outer ring of the main bearing will gradually increase, affecting the running stability of the main bearing of the shield machine, and further affecting the reliability and life of the main bearing. Therefore, monitoring the running attitude of the main bearing during operation and the impact signals it receives, analyzing them, judging the degree of skew of the internal gear ring during the use of the bearing, whether there are local abnormalities, and the degree of impact load received, and timely alarming for continuously existing abnormal signals are of great significance for reducing the failure rate of the main bearing and ensuring construction safety.

[0003] Monitoring the internal gear ring of the main bearing has always been an important direction for the safety monitoring of main drive construction. However, most of the existing technologies only monitor the displacement or rotational speed of the internal gear ring in a single direction, and it is impossible to judge the running attitude of the internal gear ring, making it difficult to monitor the running stability of the bearing. Only by monitoring the axial displacement of the internal gear ring of the bearing through a displacement sensor, the displacement signal acquisition cannot exclude the axial vibration factors caused by impact loads. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the main purpose of the embodiments of the present invention is to provide a monitoring method and device for the main bearing of a shield machine, which can realize real-time monitoring of abnormal signals and solve the problem of difficult online monitoring of main bearing faults.

[0005] To achieve the above object, an embodiment of the present invention provides a monitoring method for the main bearing of a shield machine, and the method includes:

[0006] Obtaining internal gear ring monitoring signals by using a plurality of sensors arranged on the end face of the internal gear ring of the main bearing of the shield machine and the outer ring of the main bearing;

[0007] Determining the impact monitoring result of the main bearing of the shield machine according to the internal gear ring monitoring signals;

[0008] Obtaining the running attitude data of the main bearing of the shield machine according to the distribution position information of each sensor and the internal gear ring monitoring signals;

[0009] Obtaining the monitoring result of the main bearing of the shield machine according to the impact monitoring result and the running attitude data of the main bearing of the shield machine.

[0010] Optionally, in an embodiment of the present invention, the method further includes: performing an abnormal warning for the main bearing according to the monitoring result of the main bearing of the shield machine.

[0011] Optionally, in an embodiment of the present invention, by using a plurality of sensors disposed on the end face of the internal gear ring of the main bearing of the shield machine and on the outer ring of the main bearing, obtaining the internal gear ring monitoring signals includes:

[0012] Using a non-contact displacement sensor disposed on the outer ring of the main bearing to obtain the displacement signal of the internal gear ring;

[0013] Using an acceleration sensor disposed on the end face of the internal gear ring of the bearing to obtain the vibration signal of the internal gear ring.

[0014] Optionally, in an embodiment of the present invention, according to the distribution position information of each sensor and the internal gear ring monitoring signals, obtaining the operating attitude data of the main bearing of the shield machine includes:

[0015] According to the vibration signal of the internal gear ring and the distribution position information of each displacement sensor, determining the vibration influence signals corresponding to each displacement sensor;

[0016] According to the vibration influence signals and the displacement signal of the internal gear ring, determining the operating attitude data of the main bearing of the shield machine.

[0017] An embodiment of the present invention further provides a monitoring device for the main bearing of a shield machine, and the device includes:

[0018] A monitoring signal module, configured to use a plurality of sensors disposed on the end face of the internal gear ring of the main bearing of the shield machine and on the outer ring of the main bearing to obtain the internal gear ring monitoring signals;

[0019] An impact monitoring module, configured to determine the impact monitoring result of the main bearing of the shield machine according to the internal gear ring monitoring signals;

[0020] An operating attitude module, configured to obtain the operating attitude data of the main bearing of the shield machine according to the distribution position information of each sensor and the internal gear ring monitoring signals;

[0021] A monitoring result module, configured to obtain the monitoring result of the main bearing of the shield machine according to the impact monitoring result of the main bearing of the shield machine and the operating attitude data.

[0022] Optionally, in an embodiment of the present invention, the device further includes: an abnormal warning module, configured to perform an abnormal warning for the main bearing according to the monitoring result of the main bearing of the shield machine.

[0023] Optionally, in an embodiment of the present invention, the monitoring signal module includes:

[0024] A displacement signal unit, configured to obtain the displacement signal of the internal gear ring by using a non-contact displacement sensor disposed on the outer ring of the main bearing;

[0025] A vibration signal unit, configured to obtain the vibration signal of the internal gear ring by using an acceleration sensor disposed on the end face of the bearing internal gear ring.

[0026] Optionally, in an embodiment of the present invention, the operating attitude module includes:

[0027] A vibration influence unit, configured to determine the vibration influence signals corresponding to the displacement sensors according to the vibration signal of the internal gear ring and the distribution position information of each displacement sensor;

[0028] An operating attitude unit, configured to determine the operating attitude data of the main bearing of the shield machine according to the vibration influence signals and the displacement signal of the internal gear ring.

[0029] The present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the above method is implemented.

[0030] The present invention further provides a computer-readable storage medium, which stores a computer program for executing the above method.

[0031] By monitoring abnormal signals in real time during the operation of the main bearing, analyzing the monitored signals, evaluating whether the main bearing needs to be repaired or replaced, and giving early warnings for local abnormalities and excessive impact loads, the present invention can more accurately and timely detect the fault condition of the main bearing, reduce the construction risk brought by the direct failure of the main bearing, solve the problem of difficult online monitoring of the main bearing fault, and improve the operation reliability of the shield machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a flowchart of a monitoring method for the main bearing of a shield machine according to an embodiment of the present invention;

[0034] Figure 2 It is a flowchart of obtaining the monitoring signal of the internal gear ring in an embodiment of the present invention;

[0035] Figure 3 It is a flowchart of obtaining the operating attitude data in an embodiment of the present invention;

[0036] Figure 4 Schematic diagram of the sensor installation position in the embodiment of the present invention;

[0037] Figure 5 Schematic diagram of the deflection angle of the internal gear ring relative to the external gear ring in the embodiment of the present invention;

[0038] Figure 6 Schematic diagram of the normal signal in the embodiment of the present invention;

[0039] Figure 7 Schematic diagram of the signal mutation in the embodiment of the present invention;

[0040] Figure 8 Schematic diagram of the continuously increasing signal in the embodiment of the present invention;

[0041] Figure 9 Flow chart of the abnormal alarm in the embodiment of the present invention;

[0042] Figure 10 Schematic diagram of the structure of a monitoring device for the main bearing of a shield machine in the embodiment of the present invention;

[0043] Figure 11 Schematic diagram of the structure of a monitoring device for the main bearing of a shield machine in another embodiment of the present invention;

[0044] Figure 12 Schematic diagram of the structure of the monitoring signal module in the embodiment of the present invention;

[0045] Figure 13 Schematic diagram of the structure of the running attitude module in the embodiment of the present invention;

[0046] Figure 14 Schematic diagram of the structure of the electronic device provided in an embodiment of the present invention. Detailed implementation manners

[0047] The embodiment of the present invention provides a monitoring method and device for the main bearing of a shield machine.

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0049] Such as Figure 1The figure shows a flowchart of a monitoring method for the main bearing of a shield machine according to an embodiment of the present invention. The execution subject of the monitoring method for the main bearing of the shield machine provided by the embodiment of the present invention includes, but is not limited to, a computer. The present invention solves the problem that it is difficult to monitor the running attitude and impact signals of the main bearing of the shield machine, judges the degree of skew of the internal gear ring during the use of the bearing, whether there are local abnormalities, and the magnitude of the impact load received, and timely alarms for continuously existing abnormal signals, improving the running reliability of the shield machine. Figure 1 The method shown in the figure includes:

[0050] Step S1, using a plurality of sensors arranged on the end face of the internal gear ring of the main bearing of the shield machine and on the outer ring of the main bearing to obtain the monitoring signals of the internal gear ring;

[0051] Step S2, determining the impact monitoring result of the main bearing of the shield machine according to the monitoring signals of the internal gear ring;

[0052] Step S3, obtaining the running attitude data of the main bearing of the shield machine according to the distribution position information of each sensor and the monitoring signals of the internal gear ring;

[0053] Step S4, obtaining the monitoring result of the main bearing of the shield machine according to the impact monitoring result and the running attitude data of the main bearing of the shield machine.

[0054] Among them, the main bearing of the shield machine has specific sensor installation interfaces; the sensors include non-contact displacement sensors, which monitor the axial displacement of the internal gear ring of the main bearing relative to the outer ring; the sensors also include contact acceleration sensors, which monitor the vibration condition of the internal gear ring of the main bearing; the present invention performs data processing on the collected time-domain signals for the running attitude and impact diagnosis of the main bearing.

[0055] Further, the monitoring object of the displacement sensor is the end face of the internal gear ring, which is fixed on the outer ring of the main bearing. The displacement sensor is fixed on the outer ring of the bearing rather than the box structure to eliminate the influence caused by factors such as assembly errors. Specifically, the displacement sensor is a non-contact sensor, fixed on the outer ring of the main bearing and eliminating the precision error; the acceleration sensor is a contact sensor, distributed on the end face of the internal gear ring.

[0056] Further, the sensors are arranged on the end face of the internal gear ring of the main bearing of the shield machine and on the outer ring of the main bearing to obtain the monitoring signals of the internal gear ring, which can solve the problems in the prior art that the sensors are arranged on the drive box body, the influence of factors such as assembly errors on the monitoring accuracy of the sensors cannot be eliminated, and the reliability and effectiveness of the collected data are difficult to guarantee.

[0057] As an embodiment of the present invention, as Figure 2 shown, using a plurality of sensors arranged on the end face of the internal gear ring of the main bearing of the shield machine and on the outer ring of the main bearing to obtain the monitoring signals of the internal gear ring includes:

[0058] Step S21: Using a non-contact displacement sensor disposed on the outer ring of the main bearing to obtain the displacement signal of the internal gear ring;

[0059] Step S22: Using an acceleration sensor disposed on the end face of the bearing internal gear ring to obtain the vibration signal of the internal gear ring.

[0060] Among them, by uniformly arranging a plurality of displacement sensors and acceleration sensors on the end face of the bearing internal gear ring, the displacement and vibration signals in the axial direction of the internal gear ring can be monitored.

[0061] In this embodiment, as Figure 3 shown, according to the distribution position information of each sensor and the monitoring signal of the internal gear ring, the operation attitude data of the shield machine main bearing includes:

[0062] Step S31: According to the vibration signal of the internal gear ring and the distribution position information of each displacement sensor, determine the vibration influence signal corresponding to each displacement sensor;

[0063] Step S32: According to the vibration influence signal and the displacement signal of the internal gear ring, determine the operation attitude data of the shield machine main bearing.

[0064] Among them, by comprehensively monitoring different position points on the inner ring of the bearing at the same time and excluding the influence of the vibration signal on the displacement sensor, that is, determining the vibration influence signal corresponding to each displacement sensor. According to the distribution position information of each displacement sensor, that is, according to the different displacement amounts of different points on the end face of the gear ring relative to the outer ring, the inclination degree of the internal gear ring of the main bearing relative to the outer ring can be obtained, that is, the spatial attitude of the internal gear ring of the main bearing at this time point. By continuously monitoring the spatial attitude of the internal gear ring at each time point, the real-time change situation of the operation attitude of the internal gear ring of the main bearing with respect to the time domain can be obtained, that is, the operation attitude data.

[0065] Furthermore, the acceleration sensor can be used to monitor the vibration signal of the internal gear ring in the axial direction of the internal gear ring, and thus the impact signal received by the main bearing can be obtained.

[0066] As an embodiment of the present invention, the method further includes: performing an abnormal warning for the main bearing according to the monitoring result of the shield machine main bearing.

[0067] Among them, through the monitoring of the shield machine main bearing, it is judged whether the main bearing is abnormal according to the detection result. If the data is abnormal, the control system will automatically identify the abnormal signal and give an alarm in time.

[0068] Thus, the present invention can achieve the purpose of online monitoring the running attitude and impact signals of the main bearing. As a result, it is possible to judge the degree of skewness of the internal gear ring during the use of the bearing, whether there are local abnormalities, and the degree of impact load received according to the collected signals and data processing methods, and to give an alarm in time for the continuously existing abnormal signals, which is beneficial to reducing the failure rate of the main bearing and ensuring the construction safety of the shield machine.

[0069] In a specific embodiment of the present invention, a group of displacement sensors 1 are evenly arranged on the end face of the internal gear ring of the main bearing, including S 1 、S 2 、S 3 、…S n and a group of acceleration sensors 2, including T 1 、T 2 、T 3 、…T n , and the specific installation positions are as shown in Figure 4 . The figure includes displacement sensors 1 and acceleration sensors 2 (vibration sensors), the actual end face position 3 and the theoretical end face 4 position, and the skewing angle θ of the internal gear ring relative to the external gear ring. The displacement sensors 1 are fixed on the non-raceway surface of the outer ring, and the lead wires are led out through preset holes to transmit the collected data to the main control room. This installation form can achieve the monitoring of the runout of the internal gear ring relative to the bearing outer ring and vibration signals, and avoid the influence of errors caused by the main drive assembly and structural part processing on data collection. The acceleration sensors 2 are installed in the prefabricated holes of the bearing internal gear ring, and external protection is done at the same time. The signal transmitting device is integrated inside the sensor, and through the signal receiving device and lead wires fixed on the inner side of the drive box, the collected signals can be transmitted to the main control room to achieve the purpose of monitoring the axial vibration of the bearing internal gear ring.

[0070] In this embodiment, the time-domain signals collected by the bearing displacement sensors are monitored in real time. When there is no abnormality, the normal signals are as shown in Figure 6 . Observe whether the acceleration signal of the time-domain signal is abnormal. If there is a sudden change phenomenon, it means that there is a local impact phenomenon; observe whether the displacement signal is abnormal. If there is an abnormality, it means that the runout of the internal gear ring end face is abnormal, as shown in Figure 7 . Continue to observe whether the acceleration and displacement signals continue to be abnormal. If the abnormality persists, the alarm will sound and the main bearing is abnormal.

[0071] Among them, the data measured by each displacement sensor at the same moment are statistically analyzed, and the spatial position map of the internal gear ring end face of the main bearing is drawn in combination with the positions of the displacement sensors. By comparing with the original end face of the internal gear ring, the skewing angle map of the internal gear ring relative to the external gear ring is drawn, as shown in Figure 5 . If the skewing angle is greater than a certain value, the alarm will sound.

[0072] Further, by combining the vibration acceleration signal, displacement signal, and the degree of skew of the inner gear ring of the bearing, the operating attitude of the main bearing is determined to give an early warning of main bearing faults. For example Figure 8 if the signals shown continue to increase, the process of giving an early warning of main bearing faults is carried out, as shown in Figure 9 shown. Specifically, when the signals of more than 1 sensor exceed the limit, the programmable logic controller is used to control the alarm to give a fault alarm.

[0073] Further, in the present invention, the arranged end face of the sensor can be replaced with the front end face of the inner gear ring of the main bearing, that is, by monitoring the spatial attitude of the front end face, the real-time monitoring of the motion attitude of the main bearing is realized; the types of sensors do not have to be limited to two different types (displacement, vibration) of sensors, and a sensor capable of comprehensively monitoring displacement and vibration signals can be used as a substitute.

[0074] The present invention can judge in real time the degree of skew of the inner gear ring during the use of the bearing, give an early warning of local anomalies and excessive impact loads, more accurately and timely detect the faults of the main bearing, and reduce the construction risks brought by the direct failure of the main bearing.

[0075] For example Figure 10 shown is a schematic structural diagram of a monitoring device for the main bearing of a shield machine according to an embodiment of the present invention. The device shown in the figure includes:

[0076] A monitoring signal module 10, configured to obtain inner gear ring monitoring signals by using a plurality of sensors arranged on the end face of the inner gear ring of the main bearing of the shield machine and on the outer ring of the main bearing;

[0077] An impact monitoring module 20, configured to determine the impact monitoring result of the main bearing of the shield machine according to the inner gear ring monitoring signals;

[0078] An operating attitude module 30, configured to obtain the operating attitude data of the main bearing of the shield machine according to the distribution position information of each sensor and the inner gear ring monitoring signals;

[0079] A monitoring result module 40, configured to obtain the monitoring result of the main bearing of the shield machine according to the impact monitoring result and the operating attitude data of the main bearing of the shield machine.

[0080] As an embodiment of the present invention, as shown in Figure 11 shown, the device further includes: an abnormal early warning module, configured to give an early warning of main bearing abnormalities according to the monitoring result of the main bearing of the shield machine.

[0081] As an embodiment of the present invention, as shown in Figure 12 shown, the monitoring signal module 10 includes:

[0082] A displacement signal unit 11, configured to obtain an inner gear ring displacement signal by using a non-contact displacement sensor disposed on the outer ring of the main bearing;

[0083] A vibration signal unit 12, configured to obtain an inner gear ring vibration signal by using an acceleration sensor disposed on the end face of the bearing inner gear ring.

[0084] In this embodiment, as Figure 13 shown, the operation attitude module 30 includes:

[0085] A vibration influence unit 31, configured to determine vibration influence signals corresponding to each displacement sensor according to the inner gear ring vibration signal and distribution position information of each displacement sensor;

[0086] An operation attitude unit 32, configured to determine operation attitude data of the main bearing of the shield machine according to the vibration influence signal and the inner gear ring displacement signal.

[0087] Based on the same application concept as the above-mentioned monitoring method for the main bearing of a shield machine, the present invention further provides the above-mentioned monitoring device for the main bearing of a shield machine. Since the principle of solving problems by this monitoring device for the main bearing of a shield machine is similar to that of the monitoring method for the main bearing of a shield machine, the implementation of this monitoring device for the main bearing of a shield machine can refer to the implementation of the monitoring method for the main bearing of a shield machine, and repeated parts will not be described again.

[0088] The present invention monitors abnormal signals in real time during the operation of the main bearing, analyzes the monitoring signals, evaluates whether the main bearing needs to be repaired or replaced, gives early warnings for local abnormalities and excessive impact loads, discovers the fault condition of the main bearing more accurately and timely, reduces the construction risk brought by the direct failure of the main bearing, solves the problem of difficult online monitoring of the main bearing fault, and improves the operation reliability of the shield machine.

[0089] The present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the above method when executing the program.

[0090] The present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for executing the above method.

[0091] As Figure 14 shown, the electronic device 600 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a display 160, and a power supply 170. It should be noted that the electronic device 600 does not necessarily include all the components shown in Figure 14 ; in addition, the electronic device 600 may further include components not shown in Figure 14 , and reference may be made to the prior art.

[0092] As Figure 14 shown, the central processing unit 100, sometimes also referred to as a controller or operation control, may include a microprocessor or other processor device and / or logic device. The central processing unit 100 receives inputs and controls the operations of the various components of the electronic device 600.

[0093] Among them, the memory 140 can be, for example, one or more of a buffer, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable devices. It can store the above-mentioned failure-related information, and can also store programs for executing relevant information. And the central processing unit 100 can execute the programs stored in the memory 140 to achieve information storage or processing, etc.

[0094] The input unit 120 provides inputs to the central processing unit 100. The input unit 120 is, for example, a key or a touch input device. The power supply 170 is used to supply power to the electronic device 600. The display 160 is used to display display objects such as images and texts. The display can be, for example, an LCD display, but is not limited thereto.

[0095] The memory 140 can be a solid-state memory. For example, it can be a read-only memory (ROM), a random access memory (RAM), a SIM card, etc. It can also be a memory that stores information even when powered off, can be selectively erased and has more data. Examples of such a memory are sometimes referred to as EPROMs, etc. The memory 140 can also be some other type of device. The memory 140 includes a buffer memory 141 (sometimes referred to as a buffer). The memory 140 can include an application / function storage section 142, which is used to store application programs and function programs or the processes for operating the electronic device 600 through the central processing unit 100.

[0096] The memory 140 can also include a data storage section 143, which is used to store data, such as contacts, digital data, pictures, sounds, and / or any other data used by the electronic device. The driver storage section 144 of the memory 140 can include various drivers of the electronic device for communication functions and / or for executing other functions of the electronic device (such as a messaging application, an address book application, etc.).

[0097] The communication module 110 is a transmitter / receiver 110 that transmits and receives signals via the antenna 111. The communication module (transmitter / receiver) 110 is coupled to the central processing unit 100 to provide input signals and receive output signals, which can be the same as in the case of a conventional mobile communication terminal.

[0098] Based on different communication technologies, in the same electronic device, multiple communication modules 110 can be provided, such as a cellular network module, a Bluetooth module, and / or a wireless local area network module, etc. The communication module (transmitter / receiver) 110 is also coupled to a speaker 131 and a microphone 132 via an audio processor 130 to provide an audio output via the speaker 131 and receive an audio input from the microphone 132, so as to implement normal telecommunication functions. The audio processor 130 can include any suitable buffers, decoders, amplifiers, etc. Additionally, the audio processor 130 is also coupled to a central processor 100, enabling recording on the local device through the microphone 132 and playing the sound stored on the local device through the speaker 131.

[0099] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0100] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one or more of the flows or multiple flows and / or blocks Figure 1 one or more of the blocks or multiple blocks.

[0101] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in Figure 1 one or more of the flows or multiple flows and / or blocks Figure 1 one or more of the blocks or multiple blocks.

[0102] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are performed on the computer or other programmable apparatus to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one process or multiple processes and / or blocks Figure 1 one process or multiple processes and / or blocks Figure 1 steps of the functions specified in one block or multiple blocks.

[0103] In the present invention, specific embodiments are used to illustrate the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A monitoring method for the main bearing of a shield machine, characterized in that, the method includes: using a plurality of sensors arranged on the end face of the internal gear ring of the main bearing of the shield machine and on the outer ring of the main bearing to obtain the monitoring signals of the internal gear ring; determining the impact monitoring result of the main bearing of the shield machine according to the monitoring signals of the internal gear ring; obtaining the operation attitude data of the main bearing of the shield machine according to the distribution position information of each sensor and the monitoring signals of the internal gear ring; obtaining the monitoring result of the main bearing of the shield machine according to the impact monitoring result and the operation attitude data of the main bearing of the shield machine; the step of using a plurality of sensors arranged on the end face of the internal gear ring of the main bearing of the shield machine and on the outer ring of the main bearing to obtain the monitoring signals of the internal gear ring includes: using a non-contact displacement sensor arranged on the outer ring of the main bearing to obtain the displacement signal of the internal gear ring; using an acceleration sensor arranged on the end face of the internal gear ring of the bearing to obtain the vibration signal of the internal gear ring; the step of obtaining the operation attitude data of the main bearing of the shield machine according to the distribution position information of each sensor and the monitoring signals of the internal gear ring includes: determining the vibration influence signals corresponding to each displacement sensor according to the vibration signal of the internal gear ring and the distribution position information of each displacement sensor; determining the operation attitude data of the main bearing of the shield machine according to the vibration influence signals and the displacement signal of the internal gear ring.

2. The method according to claim 1, characterized in that, the method further includes: performing abnormal warning on the main bearing according to the monitoring result of the main bearing of the shield machine.

3. A monitoring device for the main bearing of a shield machine, characterized in that, the device includes: a monitoring signal module for using a plurality of sensors arranged on the end face of the internal gear ring of the main bearing of the shield machine and on the outer ring of the main bearing to obtain the monitoring signals of the internal gear ring; an impact monitoring module for determining the impact monitoring result of the main bearing of the shield machine according to the monitoring signals of the internal gear ring; an operation attitude module for obtaining the operation attitude data of the main bearing of the shield machine according to the distribution position information of each sensor and the monitoring signals of the internal gear ring; a monitoring result module for obtaining the monitoring result of the main bearing of the shield machine according to the impact monitoring result and the operation attitude data of the main bearing of the shield machine; the monitoring signal module includes: a displacement signal unit for using a non-contact displacement sensor arranged on the outer ring of the main bearing to obtain the displacement signal of the internal gear ring; a vibration signal unit for using an acceleration sensor arranged on the end face of the internal gear ring of the bearing to obtain the vibration signal of the internal gear ring; the operation attitude module includes: a vibration influence unit for determining the vibration influence signals corresponding to each displacement sensor according to the vibration signal of the internal gear ring and the distribution position information of each displacement sensor; an operation attitude unit for determining the operation attitude data of the main bearing of the shield machine according to the vibration influence signals and the displacement signal of the internal gear ring.

4. The device according to claim 3, characterized in that, the device further includes: an abnormal warning module for performing abnormal warning on the main bearing according to the monitoring result of the main bearing of the shield machine.

5. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, when the processor executes the computer program, the method according to any one of claims 1 to 2 is implemented.

6. A computer-readable storage medium, wherein, the computer-readable storage medium stores a computer program for executing the method according to any one of claims 1 to 2.

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