Bucket tooth wear monitoring system and control method thereof

Abstract

The invention discloses a bucket tooth wear monitoring system and a control method thereof, the bucket tooth wear monitoring system comprises: a bucket tooth, in which an accommodating cavity is formed; the monitoring device is arranged in the accommodating cavity; the signal receiving module is arranged outside the bucket tooth and is in communication connection with the monitoring device, and the signal receiving module is used for receiving the wireless signal transmitted by the monitoring device and generating a wear alarm; wherein the accommodating cavity wraps the monitoring device to form a signal shielding layer, and when the accommodating cavity is not worn out, the signal shielding layer shields the monitoring device from transmitting a wireless signal to the signal receiving module; when the containing cavity is worn through, the monitoring device is partially exposed out of the containing cavity, and at the moment, the monitoring device sends out a wireless signal to the signal receiving module.

Description

Technical Field

[0001] The present application relates to the field of bucket tooth status monitoring, and in particular to a bucket tooth wear monitoring system and a control method thereof. Background Art

[0002] Current bucket tooth wear detection technology has many limitations, particularly in the detection method. The current mainstream method still relies on operators to regularly shut down the machine for inspection, using visual observation or simple tools to measure wear. This method is inefficient, and operators cannot automatically identify wear conditions. Simultaneously, management personnel cannot timely and automatically understand bucket tooth wear conditions, and cannot detect critical wear states in real time. This leads to delayed bucket tooth replacement, which can easily cause bucket teeth to break or fall off. Fallen bucket teeth mixed with ore can damage the crusher, causing significant economic losses.

[0003] Among them, bucket tooth wear detection based on image recognition in related technologies relies on optical equipment, has poor adaptability to working conditions, cannot timely observe bucket teeth that have reached the limit of wear during use, and has high investment costs.

[0004] Therefore, how to achieve reliable monitoring of bucket tooth wear and accurate replacement of bucket teeth has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this application is to provide a bucket tooth wear monitoring system and a control method thereof, so as to achieve reliable monitoring of bucket tooth wear and accurate replacement of bucket teeth.

[0006] In order to achieve the above objectives, the technical solution adopted in the present application is: to provide a bucket tooth wear monitoring system, comprising: a bucket tooth, wherein a accommodating cavity is provided in the bucket tooth; a monitoring device, wherein the monitoring device is arranged in the accommodating cavity; a signal receiving module, wherein the signal receiving module is arranged on the outside of the bucket tooth and is communicatively connected with the monitoring device, and the signal receiving module is used to receive the wireless signal transmitted by the monitoring device and generate a wear alarm; wherein the accommodating cavity covers the monitoring device to form a signal shielding layer, and when the accommodating cavity is not worn through, the signal shielding layer shields the monitoring device from sending wireless signals to the signal receiving module; when the accommodating cavity is worn through, the monitoring device is partially exposed outside the accommodating cavity, and at this time the monitoring device sends a wireless signal to the signal receiving module.

[0007] As a preferred embodiment, the monitoring device includes: a sensor, which is used to emit a wireless signal; a power supply, which is used to power the sensor; and a micro switch, which is arranged at the end of the sensor; wherein the sensor, the power supply and the micro switch are all arranged in the accommodating cavity; when the accommodating cavity is not worn through, the micro switch and the power supply are in a non-contact state, and the sensor does not work; when the accommodating cavity is worn through, the micro switch and the power supply are in contact and conductive, triggering the sensor to work and send a wireless signal to the signal receiving module.

[0008] As another preference, the sensor includes a sensor body and a packaging component, wherein the packaging component is wrapped around the outside of the sensor body, and the packaging component is used to prevent the sensor body from being directly pressurized.

[0009] Further preferably, an opening structure of a first length is opened in the accommodating cavity toward the tooth tip of the bucket tooth, the packaging component wraps the sensor body and fills the opening structure, and the micro switch and the power supply are arranged outside the opening structure.

[0010] Preferably, the bucket tooth wear monitoring system also includes a tooth seat, which extends into the accommodating cavity and is connected to the bucket tooth to form a bucket tooth assembly; wherein, there are multiple bucket tooth assemblies, and multiple bucket tooth assemblies are used to connect with the excavator blade, and each bucket tooth assembly is correspondingly provided with the monitoring device.

[0011] Further preferably, a bucket tooth information module is further provided in the sensor body, and the bucket tooth information module is used to record the number information of the bucket tooth assembly at the corresponding position on the excavator blade; wherein, the bucket tooth information module is communicatively connected with the signal receiving module, and when the accommodating cavity is worn through, the monitoring device is partially exposed outside the accommodating cavity, and the bucket tooth information module transmits the bucket tooth information to the signal receiving module.

[0012] Preferably, an analysis module is further provided in the sensor body, and the analysis module deploys a deep learning neural network model, whose input is the time series wear rate broken line generated by the wireless signal, and the output is the predicted value of the remaining life of the bucket tooth.

[0013] Furthermore, the present application document also provides a control method for a bucket tooth wear monitoring system, including: step S1: preparing an excavator, the excavator including an excavator blade and a plurality of bucket tooth assemblies assembled on the excavator blade, the bucket tooth assembly including a bucket tooth with an accommodating cavity therein, and a monitoring device provided in the accommodating cavity, the monitoring device being used to communicate with a user-end signal receiving module; step S2: when the bucket tooth in the first position on the excavator blade is worn to damage the wall of the accommodating cavity, the monitoring device built into the accommodating cavity is exposed and outputs a wireless signal to the signal receiving module; step S3: the signal receiving module issues an alarm to prompt the operator to replace the corresponding worn bucket tooth; step S4: performing data management and analysis on the bucket tooth after replacement.

[0014] Preferably, the monitoring device includes a sensor, a micro switch and a power supply, and a bucket tooth information module is provided in the sensor; step S21: the built-in monitoring device in the accommodating cavity is exposed, and the bucket tooth is pressurized to drive the sensor to be connected to the power supply through the micro switch, triggering the sensor to work and send a wireless signal to the signal receiving module; wherein the wireless signal includes bucket tooth information of the worn bucket tooth at the first position on the corresponding excavator blade.

[0015] Preferably, an analysis module is also provided in the sensor; the step S4 further includes the following steps: step S41: the analysis module establishes a deep learning training model based on the historical wear data of the bucket teeth at a fixed position and a fixed information number on the excavator blade; step S42: the historical wear rate curve of the bucket teeth at the first position on the excavator blade is input into the deep learning training model, and the output is a predicted value of the remaining life of the bucket teeth after the replacement is completed.

[0016] Compared with the prior art, the present invention has the following advantages: The tooth wear limit is directly tied to the damage to the containment cavity wall, eliminating the need for manual observation. The monitoring device will only issue a signal when the tooth wear reaches the point of damaging the containment cavity wall, effectively eliminating the need for replacement. This ensures that the criteria for determining whether tooth wear requires replacement align with the tooth's actual wear path, effectively avoiding the potential for premature or delayed tooth replacement associated with traditional visual inspection or other indirect monitoring methods. This allows for precise control of tooth wear and replacement.

[0017] At the same time, the signal shielding layer composed of metal bucket teeth and tooth seats has a reliable shielding effect on wireless signals, ensuring that the signal of the monitoring device will not leak when the bucket teeth have not reached the wear limit, thus avoiding false alarms; and when the wall of the accommodating cavity is damaged and the monitoring device is exposed, the signal can be sent stably, thus avoiding missed alarms, ensuring the reliability of monitoring, and allowing users to accurately judge the status of the bucket teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the cross-sectional structure of bucket teeth.

[0019] Figure 2 Schematic diagram of the structure of bucket teeth.

[0020] Figure 3 It is a structural diagram of the position of the accommodating cavity in the bucket tooth.

[0021] Figure 4 It is a structural diagram of the bucket tooth assembly.

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the bucket tooth assembly.

[0023] Figure 6 This is a structural diagram of the bucket tooth assemblies distributed at intervals on the excavator blade.

[0024] Figure 7 It is a line graph of bucket tooth historical wear rate.

[0025] In the figure: 10, bucket tooth; 11, accommodating cavity; 12, opening structure; 13, tooth tip; 20, tooth seat; 30, monitoring device; 31, sensor; 311, sensor body; 312, packaging; 32, power supply; 33, micro switch; 40, bucket tooth assembly; 50, excavator blade. DETAILED DESCRIPTION

[0026] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application 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 cannot be understood as limiting the specific scope of protection of this application.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0029] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0030] In a preferred embodiment, see Figures 1 to 5 The present application document provides a bucket tooth 10 wear monitoring system, comprising: a bucket tooth 10, wherein a housing cavity 11 is provided in the bucket tooth 10; a monitoring device 30, wherein the monitoring device 30 is arranged in the housing cavity 11; a signal receiving module, wherein the signal receiving module is arranged outside the bucket tooth 10 and is communicatively connected with the monitoring device 30, and the signal receiving module is used to receive a wireless signal transmitted by the monitoring device 30 and generate a wear alarm; wherein the housing cavity 11 covers the monitoring device 30 to form a signal shielding layer, and when the housing cavity 11 is not worn through, the signal shielding layer shields the monitoring device 30 from sending a wireless signal to the signal receiving module; when the housing cavity 11 is worn through, the monitoring device 30 is partially exposed outside the housing cavity 11, and at this time the monitoring device 30 sends a wireless signal to the signal receiving module.

[0031] Among them, the monitoring device 30 is arranged near the inner wall position of the accommodating chamber 11, and preferably, the monitoring device 30 is arranged near one side of the tooth tip 13 in the bucket tooth 10, and then the bucket tooth 10 wear monitoring system also includes a tooth seat 20, the tooth seat 20 extends into the accommodating chamber 11 and is connected with the bucket tooth 10 to form a bucket tooth assembly 40, and the monitoring device 30 arranged near the tooth tip 13 can effectively avoid the interference of the tooth seat 20 and the bucket tooth 10 when it is assembled; wherein, in a complete excavator, there are multiple bucket tooth assemblies 40, and multiple bucket tooth assemblies 40 are used to connect with the excavator blade 50, and each bucket tooth assembly 40 is correspondingly provided with a monitoring device 30.

[0032] During the normal operation of the excavator, the bucket teeth 10 come into contact with the ore, and the bucket teeth 10 will be worn after long-term operation, and the wear path is generally from the tooth tip 13 of the bucket tooth 10 to the tooth seat 20 position. Therefore, the replacement of the bucket tooth assembly 40 only requires replacing the bucket tooth 10. In this application document, a monitoring device 30 is set in the accommodating cavity 11 of the bucket tooth 10. The monitoring device 30 can send a wireless signal to the external signal receiving module. The limit wear of the bucket tooth 10 is defined as the damage of the wall of the accommodating cavity 11. At the same time, the wall of the accommodating cavity 11 for accommodating the monitoring device 30 is composed of the bucket tooth 10 and the tooth seat 20. The bucket tooth 10 and the tooth seat 20 are both a metal structure, and then the inner wall structure of the bucket tooth 10 and the tooth seat 20 is placed in the accommodating cavity 11 to form a signal shielding layer; when the bucket tooth 10 is in normal use, the bucket tooth 10 has not reached the wear limit. At this time, the wall of the accommodating cavity 11 is not damaged. The wireless signal of the monitoring device 30 in the cavity 11 cannot be transmitted outward due to the influence of the signal shielding layer. The signal receiving module located at the user terminal will not receive the wireless signal from the monitoring device 30. At this time, it means that the wear of the bucket tooth 10 has not reached the extent that requires replacement; and when the wear of the bucket tooth 10 reaches the limit, the wall of the accommodating cavity 11 will be damaged, and part of the monitoring device 30 will be exposed to the outside. At this time, the signal shielding layer will no longer provide a signal shielding effect for the monitoring device 30 in the accommodating cavity 11. Therefore, the signal receiving module located at the user terminal will receive the wireless signal from the monitoring device 30, prompting the user that this bucket tooth 10 needs to be replaced.

[0033] As a preferred embodiment, the monitoring device 30 includes: a sensor 31, which is used to emit a wireless signal; a power supply 32, which is used to power the sensor 31; and a micro switch 33, which is arranged at the end of the sensor 31; wherein the sensor 31, the power supply 32 and the micro switch 33 are all arranged in the accommodating cavity 11; when the accommodating cavity 11 is not worn through, the micro switch 33 and the power supply 32 are in a non-contact state, and the sensor 31 does not work; when the accommodating cavity 11 is worn through, the micro switch 33 and the power supply 32 are in contact and conductive, triggering the sensor 31 to work and send a wireless signal to the signal receiving module.

[0034] It should be noted that when the bucket tooth 10 is working normally and has not reached the wear limit, the sensor 31 provided with the micro switch 33 is disconnected from the power supply 32, and the monitoring device 30 does not send a wireless signal to the outside at this time, that is, the sensor 31 is in a long-term standby state at this time. The power supply 32 can be one of a variety of batteries such as a button battery, a lithium battery or a phosphate battery, and is integrated in the accommodating cavity 11, so that the sensor 31 will not lose the power supply 32. When and only when the wall of the accommodating cavity 11 is damaged, the pressure of the tooth tip 13 of the bucket tooth 10 is applied to the sensor 31, pushing the sensor 31 to contact the power supply 32 through the micro switch 33, and the sensor 31 will be triggered to work and send a wireless signal to the signal receiving module. Therefore, the bucket tooth 10 wear monitoring system in this application document does not work when the bucket tooth 10 is in normal use, and does not consume electricity, so that the effectiveness of the power supply 32 and the sensor 31 can be maintained for a long time.

[0035] As another preferred embodiment, the sensor 31 includes a sensor body 311 and a packaging component 312 . The packaging component 312 is wrapped around the outside of the sensor body 311 . The packaging component 312 is used to prevent the sensor body 311 from being directly pressurized.

[0036] Specifically, the encapsulation 312 is formed by pouring epoxy resin glue, for example, into a thin layer of metal hollow cylinder. The thin layer of metal will not affect the external signal transmission of the sensor body 311. Therefore, the sensor 31 in this application document can be gradient encapsulated to achieve the encapsulation 312 filling the open structure 12 to form a continuous sealed structure. Specifically, in combination with the encapsulation process, the sensor body 311 and the connecting wires are placed in the encapsulated metal hollow cylinder, and then encapsulated with epoxy resin glue. The lead wires are connected to the micro switch 33 and the power supply 32. The outside of the power supply 32 can also be covered with waterproof material. Then, the sensor body 311 is encapsulated from the signal shielding layer with epoxy resin and silicone materials to meet the IP68 protection level and avoid uncertainties such as water vapor interference.

[0037] Further preferably, an opening structure 12 of a first length is opened in the accommodating cavity 11 toward the tooth tip 13 of the bucket tooth 10 , the package 312 wraps the sensor body 311 and fills the opening structure 12 , and the micro switch 33 and the power supply 32 are arranged outside the opening structure 12 .

[0038] Specifically, different structures of the bucket tooth 10 have different limit wear thresholds. For a single bucket tooth 10, based on different parameters such as its model structure, the bucket tooth 10 is defined as having a limit wear length of a first parameter value, which means that when the bucket tooth 10 wears the first parameter value length from the tooth tip 13 toward the tooth seat 20, the wear limit of the bucket tooth 10 is reached, and the bucket tooth 10 needs to be replaced. Therefore, the remaining length is obtained by subtracting the length of the first parameter value from the inner wall position of the accommodating cavity 11 close to the side of the bucket tooth 10 to the end of the tooth tip 13 of the bucket tooth 10. That is the first length, and then based on the first length, an opening structure 12 is opened from the accommodating cavity 11 toward the tooth tip 13 of the bucket tooth 10, and the sensor body 311 and the package 312 are integrated into the opening structure 12. Once the wear of the bucket tooth 10 reaches the end of the opening structure 12, the end wall layer of the opening structure 12 is damaged, and the pressure on the tooth tip 13 will directly act on the package 312, thereby causing the package 312 to drive the sensor body 311 to move backward, and then the micro-motion drives the contact power supply 32 to be turned on, so that the sensor body 311 can send wireless signals to the signal receiving module.

[0039] Further preferably, a bucket tooth 10 information module is further provided in the sensor body 311 , and the Bluetooth module, bucket tooth 10 information module, analysis module, etc. are integrated with the micro control unit on the same circuit board.

[0040] The bucket tooth 10 information module is used to record the number information of the bucket tooth assembly 40 at the corresponding position on the excavator blade 50; wherein, the bucket tooth 10 information module is communicatively connected to the signal receiving module. When the accommodating cavity 11 is worn through, the monitoring device 30 is partially exposed outside the accommodating cavity 11, and the bucket tooth 10 information module transmits the bucket tooth 10 information to the signal receiving module.

[0041] In actual operation, see Figure 6When the excavator is operating normally, multiple bucket tooth assemblies 40 will be arranged at intervals on the excavator blade 50. The multiple bucket tooth assemblies 40 are used together to grab, transport, and crush materials such as ore. Since the bucket tooth assemblies 40 are arranged at intervals on the excavator blade 50, even if two bucket tooth assemblies 40 are adjacent to each other on the excavator blade 50, the degree of wear they will suffer during operation is different. Therefore, in this application document, a monitoring device 30 is provided in the bucket tooth 10 of each bucket tooth assembly 40 to facilitate independent monitoring of any single independent bucket tooth assembly 40. At the same time, in order to achieve the above-mentioned independent monitoring of the individual bucket tooth assembly 40, a bucket tooth 10 information module is provided in each individual monitoring device 30, which is used to record the bucket tooth assembly at the corresponding position on the excavator blade 50. 40 numbering information, for example, on an excavator, 5 bucket tooth assemblies 40 are arranged at intervals on the excavator blade 50, and then the bucket tooth 10 information module is used to generate the numbering information corresponding to each bucket tooth assembly 40, and the 5 bucket tooth assemblies 40 can be divided into numbers 1001, 1002, 1003, 1004 and 1005 in sequence, where the first two digits of the number can represent the excavator number, 10 represents the bucket tooth assembly 40 on the excavator numbered 10, and the last two digits represent the corresponding bucket tooth 10. Each bucket tooth assembly 40 is numbered independently. When any bucket tooth assembly 40 works to the wear limit, the wireless signal emitted by the sensor body 311 in the bucket tooth 10 will be accompanied by the numbering information of this bucket tooth assembly 40 and the excavator to the user terminal, so that the user can accurately locate the bucket tooth assembly 40 that has reached the wear limit.

[0042] Among them, the sensor body 311 transmits wireless signals to the outside world through the Bluetooth module, and transmits wireless signals to the outside world through, for example, the Bluetooth protocol; the external signal receiving module located at the terminal position, such as the Bluetooth receiver in the cockpit, captures the signal and forwards the wear alarm through the DTU module, indicating that the bucket tooth 10 must be replaced.

[0043] At the same time, it should be noted that the signal transmission method in this application document has an essentially different design logic from the signal transmission method of mobile communication equipment in related technologies. Specifically, in traditional mobile devices, such as mobile phones, the antenna baseband needs to maintain the ability to continuously transmit and receive signals, and its metal shell must be provided with a non-metallic wave-transmitting window, such as plastic, ceramic cover plate and other materials, to ensure the signal path. However, this solution innovatively reversely utilizes the metal shielding characteristics, that is, under normal operating conditions of the bucket tooth 10, the thicker metal layer of the bucket tooth 10 itself acts as an active shield to block signal transmission, and no communication function is required; when the bucket tooth 10 is in a critical wear condition, the signal shielding layer is damaged and passively forms a signal path, realizing automatic perception of wear state switching. Unlike the requirement of conventional communication equipment to continuously expose the antenna, wear-triggered one-way communication is achieved through structural shielding, significantly improving the reliability and engineering applicability of the system.

[0044] Furthermore, the Bluetooth module provided in the sensor body 311 has an antenna structure with a specific length, which is a miniature antenna, and electrical resonance matching can be achieved based on the miniature antenna.

[0045] Furthermore, the present application document also provides a control method for a bucket tooth 10 wear monitoring system, comprising: step S1: preparing an excavator, the excavator comprising an excavator blade 50 and a plurality of bucket tooth assemblies 40 assembled on the excavator blade 50, the bucket tooth assembly 40 comprising a bucket tooth 10 having an accommodating cavity 11 therein, and a monitoring device 30 provided in the accommodating cavity 11, the monitoring device 30 being used to communicate with a user-end signal receiving module; step S2: when the bucket tooth 10 in the first position on the excavator blade 50 is worn to damage the wall of the accommodating cavity 11, the monitoring device 30 built into the accommodating cavity 11 is exposed and outputs a wireless signal to the signal receiving module; step S3: the signal receiving module issues an alarm, prompting the operator to replace the corresponding worn bucket tooth 10; step S4: performing data management and analysis on the bucket tooth 10 after replacement.

[0046] Preferably, the monitoring device 30 includes a sensor 31, a micro switch 33 and a power supply 32, and a bucket tooth 10 information module is provided in the sensor 31; step S21: the built-in monitoring device 30 in the accommodating cavity 11 is exposed, and the bucket tooth 10 is pressurized to drive the sensor 31 to be connected to the power supply 32 through the micro switch 33, triggering the sensor 31 to work and send a wireless signal to the signal receiving module; wherein the wireless signal includes the bucket tooth 10 information of the bucket tooth 10 worn at the first position on the corresponding excavator blade 50.

[0047] The sensor body 311 utilizes a multi-mode communication protocol to cover the operating environment of the bucket tooth 10. The multi-mode communication protocol includes the following: when the bucket tooth 10 is less than or equal to a first distance from the signal receiving module, the signal transmission module transmits wireless signals via Bluetooth within the first distance; when the bucket tooth 10 is greater than the first distance from the signal receiving module, the signal transmission module switches to the LTE network to transmit wireless signals. The first distance is set based on actual operating conditions. In this application document, the preferred first distance is 50 meters. That is, when the bucket tooth 10 is less than or equal to 50 meters from the signal receiving module, the Bluetooth communication protocol is used for signal transmission. When the bucket tooth 10 is greater than 50 meters from the signal receiving module, the LTE network is used to provide full coverage of the signal transmission environment.

[0048] Preferably, an analysis module is also provided in the sensor 31, and a deep learning neural network model is deployed through the analysis module. Its input is the time series wear rate broken line generated by the wireless signal, and its output is the predicted value of the remaining life of the bucket tooth 10; specifically, the sensor body 311 sends the wireless signal to the terminal receiving device in the excavator cab through the Bluetooth module, and then the 4G module on the receiving device sends it to the cloud server, and the cloud server stores the relevant time data, configuration data and analysis data. The cloud server is the center and brain of this system.

[0049] Therefore, step S4 also includes the following steps: Step S41: The analysis module establishes a deep learning training model based on the historical wear data of the bucket tooth 10 at a fixed position and fixed information number on the excavator blade 50; Step S42: The historical wear rate curve of the bucket tooth 10 at the first position on the excavator blade 50 is input into the deep learning training model, and the output is the predicted value of the remaining life of the bucket tooth 10 after the replacement is completed.

[0050] Specifically, through the historical working time records of similar products, the relevant statistical characteristics of this type of bucket tooth 10 are calculated, such as: average working time, maximum working time, minimum working time, and their root mean square values, and a normal distribution diagram of its working time is drawn to obtain the predicted value of the life time of the bucket tooth 10.

[0051] For example, see Figure 6 The bucket teeth assemblies 40 spaced apart on the excavator blade 50 will form a certain operating angle, and the bucket teeth assemblies 40 arranged at both ends of the excavator blade 50 are arranged at a certain inclination angle, so that when the excavator blade 50 is performing work such as grabbing, transporting, and crushing ore and other materials, under different working conditions, the bucket teeth assemblies 40 on both sides of the excavator blade 50 and the bucket teeth assemblies 40 located in the middle of the excavator blade 50 are subjected to different forces. Therefore, for example, in a normal rock crushing working condition, the excavator does not perform a sudden power change output, and keeps the power change within a certain range. At this time, the excavator needs to be driven to crush the rock pile head-on. Under this working condition, the bucket teeth assembly 40 in the middle of the excavator blade 50 is subjected to greater force, while for the bucket teeth assemblies 40 on both sides of the excavator blade 50, the recorded average working time of the bucket teeth assemblies 40 is shorter, the maximum working time is shorter, and the minimum working time is also shorter. Therefore, for the bucket teeth assemblies 40 on both sides of the excavator blade 50, an overall analysis of multiple excavators is integrated, see Figure 7 ,by Figure 6Taking the bucket tooth assembly 40 at the third position from the left to the right in the middle excavator blade 50 as an example, that is, the bucket tooth assembly 40 in the middle, the horizontal axis represents the replacement number of the historical bucket tooth 10, and the vertical axis represents the root mean square calculated value of the working time of the bucket tooth 10, and the vertical axis corresponds to different time units under different working conditions. Therefore, in this embodiment, only digital expressions are used as examples without unit dimensions; specifically, X1 represents the first bucket tooth 10 that is replaced for the first time at the third position from the left to the right in the excavator blade 50, and the vertical axis corresponding to the position of X1 indicates the maximum working time of the bucket tooth 10, and X2 represents the second bucket tooth 10 after X1 is replaced at the third position from the left to the right in the excavator blade 50, which is recorded as X2. The vertical axis at X2 corresponds to the maximum working time of the bucket tooth 10 that was replaced for the second time, and so on. The last X5 in the line graph This indicates that five bucket tooth 10 replacement operations have been performed at the third position from the left to the right side of the excavator blade 50, thereby retaining five sets of data, and indicating that the bucket tooth 10 wear rate curve here fluctuates at a low level; similarly, for the bucket tooth assemblies 40 on both sides of the excavator blade 50, the contact strength of the bucket teeth 10 is lower than that of the bucket teeth 10 in the middle of the excavator blade 50, so the wear rate of the bucket teeth 10 on both sides of the excavator blade 50 is lower, so the bucket tooth 10 wear rate curve here will fluctuate at a high level, and then after obtaining the relevant detection data, after analyzing the relevant data through the cloud server, a rough prediction of the service life of the bucket tooth assembly 40 at any position of the excavator blade 50 will be obtained, so that the user can know the approximate remaining use time of any bucket tooth assembly 40 in advance, and then prompt the user to pay attention to the early warning of this bucket tooth assembly 40 in advance, so as to prepare for the replacement of the bucket teeth 10 in advance.

[0052] When the sample size of bucket tooth 10 replacement is large enough, the AI ​​life model can be used to predict life and issue alarms in the later stage.

[0053] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A bucket tooth wear monitoring system, characterized in that: include: Bucket teeth, wherein a receiving cavity is provided in the bucket teeth; a monitoring device, the monitoring device being disposed in the accommodating cavity; a signal receiving module, the signal receiving module being disposed outside the bucket tooth and being in communication with the monitoring device, the signal receiving module being configured to receive a wireless signal transmitted by the monitoring device and generate a wear alarm; The accommodating cavity covers the monitoring device to form a signal shielding layer. When the accommodating cavity is not worn through, the signal shielding layer shields the monitoring device from sending wireless signals to the signal receiving module. When the accommodating cavity is worn through, the monitoring device is partially exposed outside the accommodating cavity. At this time, the monitoring device sends wireless signals to the signal receiving module.

2. The bucket tooth wear monitoring system according to claim 1, characterized in that: The monitoring device comprises: A sensor configured to emit a wireless signal; a power supply, the power supply being used to supply power to the sensor; A micro switch is provided at the end of the sensor; The sensor, the power supply and the micro switch are all arranged in the accommodating cavity; when the accommodating cavity is not worn through, the micro switch and the power supply are in a non-contact state, and the sensor does not work; When the accommodating cavity is worn through, the micro switch contacts and conducts with the power supply, triggering the sensor to work and send a wireless signal to the signal receiving module.

3. The bucket tooth wear monitoring system according to claim 2, characterized in that: The sensor includes a sensor body and a packaging component. The packaging component is coated on the outside of the sensor body and is used to prevent the sensor body from being directly pressurized.

4. The bucket tooth wear monitoring system according to claim 3, characterized in that: An opening structure with a first length is provided in the accommodating cavity toward the tooth tip of the bucket tooth. The packaging component wraps the sensor body and fills the opening structure. The micro switch and the power supply are arranged outside the opening structure.

5. The bucket tooth wear monitoring system according to claim 3, characterized in that: The bucket tooth wear monitoring system further includes a tooth seat, wherein the tooth seat extends into the accommodating cavity and is connected with the bucket tooth to form a bucket tooth assembly; There are multiple bucket tooth assemblies, and the multiple bucket tooth assemblies are used to connect with the excavator blade. The monitoring device is correspondingly provided in each bucket tooth assembly.

6. The bucket tooth wear monitoring system according to claim 5, characterized in that: The sensor body is also provided with a bucket tooth information module, which is used to record the number information of the bucket tooth assembly at the corresponding position on the excavator blade; The bucket tooth information module is communicatively connected to the signal receiving module. When the accommodating cavity is worn through, the monitoring device is partially exposed outside the accommodating cavity, and the bucket tooth information module transmits bucket tooth information to the signal receiving module.

7. The bucket tooth wear monitoring system according to claim 3, characterized in that: The sensor body is also provided with an analysis module, which deploys a deep learning neural network model. Its input is the time series wear rate broken line generated by the wireless signal, and its output is the predicted value of the remaining life of the bucket tooth.

8. A control method for a bucket tooth wear monitoring system, characterized in that: include: Step S1: Preparing an excavator, the excavator including an excavator blade and a plurality of bucket tooth assemblies assembled on the excavator blade, the bucket tooth assemblies including bucket teeth with an accommodating cavity therein, and a monitoring device disposed in the accommodating cavity, the monitoring device being configured to communicate with a user-side signal receiving module; Step S2: When the bucket teeth on the excavator blade at the first position are worn to damage the wall of the accommodating cavity, the monitoring device built into the accommodating cavity is exposed and outputs a wireless signal to the signal receiving module; Step S3: the signal receiving module issues an alarm to prompt the operator to replace the corresponding worn bucket teeth; Step S4: Perform data management and analysis on the replaced bucket teeth.

9. The control method of the bucket tooth wear monitoring system according to claim 8, characterized in that: The monitoring device includes a sensor, a micro switch and a power supply. The sensor is equipped with a bucket tooth information module; The step S2 further comprises the following steps: Step S21: The built-in monitoring device in the accommodating chamber is exposed, and the bucket teeth are pressurized to drive the sensor to be connected to the power supply through the micro switch, triggering the sensor to work and send a wireless signal to the signal receiving module; The wireless signal includes bucket tooth information corresponding to the worn bucket teeth at the first position on the excavator blade.

10. The control method of the bucket tooth wear monitoring system according to claim 8, characterized in that: An analysis module is also provided within the sensor; The step S4 further comprises the following steps: Step S41: The analysis module establishes a deep learning training model based on the historical wear data of the bucket teeth at a fixed position and fixed information number on the excavator blade; Step S42: The historical wear rate curve of the bucket teeth at the first position on the excavator blade is input into the deep learning training model, and the model outputs the predicted value of the remaining life of the bucket teeth after the replacement is completed.

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