Monitoring method and device of transmission system and engineering equipment

Abstract

The invention discloses a monitoring method and device of a transmission system and engineering equipment, which can monitor the running state of the transmission system in real time so as to find the abnormal state of the transmission system in time. According to the first aspect of the invention, the monitoring method of the transmission system is provided, the transmission system comprises a transmission mechanism and a tensioning mechanism, and the monitoring method of the transmission system comprises the following steps: based on a motor state fed back by a motor controller, obtaining a driving motor torque and an oil pump motor torque; according to the operation interval in which the torque of the driving motor is located, the operation state of the transmission mechanism is determined; when the running state of the transmission mechanism shows that the transmission mechanism runs in the normal load state, the running state of the tensioning mechanism is determined according to the running interval where the torque of the oil pump motor is located; and when the running state of the tensioning mechanism shows that the tensioning mechanism runs in an abnormal state, a prompt signal for shutdown maintenance is sent out.

Description

Technical Field

[0001] The present application relates to the technical field of fault diagnosis, and in particular to a monitoring method, device and engineering equipment for a transmission system. Background Art

[0002] Drive belts are widely used in transmission systems in engineering equipment, transmitting mechanical energy through friction or meshing between the pulley and the belt. However, due to long-term exposure to alternating loads, environmental factors, and material aging, drive belts are susceptible to wear, cracks, and fatigue. When a belt malfunctions due to damage or end of life, traditional tensioning mechanisms may not detect the abnormal condition in time and continue to apply force, potentially placing abnormal stress on the tensioner, support bearing, or adjustment mechanism, leading to deformation of the mechanical structure, bearing damage, and even tensioning mechanism failure. Summary of the Invention

[0003] In order to solve the above technical problems, the present application is proposed. The embodiments of the present application provide a transmission system monitoring method, device and engineering equipment, which can monitor the operating status of the transmission system in real time, thereby promptly detecting abnormal conditions of the transmission system.

[0004] According to a first aspect of the present application, a method for monitoring a transmission system is provided, wherein the transmission system includes a transmission mechanism and a tensioning mechanism, and the method for monitoring the transmission system includes: obtaining a driving motor torque and an oil pump motor torque based on a motor state fed back by a motor controller; determining an operating state of the transmission mechanism according to an operating range in which the driving motor torque is located; when the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state, determining an operating state of the tensioning mechanism according to an operating range in which the oil pump motor torque is located; and issuing a prompt signal for shutdown and maintenance when the operating state of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state.

[0005] As a possible implementation manner, the operating state of the transmission mechanism is determined according to the operating range of the drive motor torque, including: when the drive motor torque is greater than or equal to a preset drive torque value, and the duration is greater than or equal to a first preset time length, determining that the operating state of the transmission mechanism is the transmission mechanism overload or the transmission mechanism failure; wherein, the monitoring method of the transmission system also includes: when the transmission mechanism is overloaded or the transmission mechanism fails, issuing a prompt signal for shutdown and maintenance.

[0006] As a possible implementation method, the monitoring method of the transmission system also includes: when the transmission system is determined to be in a no-load state, obtaining the driving motor torque in the no-load state; taking the driving motor torque in the no-load state as the no-load motor torque value; wherein, according to the operating range of the driving motor torque, the operating state of the transmission mechanism is determined, and also includes: when the driving motor torque is less than the no-load motor torque value, and the duration is greater than or equal to a first preset time length, determining that the operating state of the transmission mechanism is that the driving force of the transmission mechanism is less than an initial state; wherein, the initial state represents the state of the transmission mechanism when the transmission system is determined to be in a no-load state.

[0007] As a possible implementation, the transmission system monitoring method further includes: when the driving force of the transmission mechanism is less than an initial state, issuing a prompt signal for stopping the machine for maintenance.

[0008] As a possible implementation method, determining the operating state of the transmission mechanism based on the operating range of the drive motor torque also includes: when the drive motor torque is in the operating range between the preset drive torque value and the no-load motor torque value, determining that the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state.

[0009] As a possible implementation method, when the operating status of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state, the operating status of the tensioning mechanism is determined according to the operating range of the oil pump motor torque, including: when the oil pump motor torque is greater than or equal to a first preset torque value, and the duration is greater than or equal to a second preset time length, the operating status of the tensioning mechanism is determined to be that the cylinder is extended or contracted to the extreme position; wherein, when the operating status of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state, a prompt signal for shutdown and maintenance is issued, including: when the operating status of the tensioning mechanism is that the cylinder is extended or contracted to the extreme position, a prompt signal for shutdown and maintenance is issued.

[0010] As a possible implementation method, when the operating status of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state, the operating status of the tensioning mechanism is determined according to the operating range of the oil pump motor torque, including: when the oil pump motor torque is in the operating range between the first preset torque value and the second preset torque value and the duration is greater than or equal to a third preset time, it is determined that the operating status of the tensioning mechanism is an abnormal state and the cylinder has an unexpected action; wherein the second preset torque value is less than the first preset torque value; wherein, when the operating status of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state, a prompt signal for shutdown and maintenance is issued, including: when the operating status of the tensioning mechanism is an abnormal state and the cylinder has an unexpected action, a prompt signal for shutdown and maintenance is issued.

[0011] As a possible implementation method, when the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state, the operating state of the tensioning mechanism is determined according to the operating range of the oil pump motor torque, including: when the oil pump motor torque is less than the second preset torque value, determining that the operating state of the tensioning mechanism is that the tensioning mechanism is operating in a normal state.

[0012] According to a second aspect of the present application, a monitoring device for a transmission system is provided, wherein the transmission system includes a transmission mechanism and a tensioning mechanism, and the monitoring device for the transmission system includes: an acquisition module for acquiring the drive motor torque and the oil pump motor torque based on the motor state feedback from the motor controller; a first determination module for determining the operating state of the transmission mechanism according to the operating range of the drive motor torque; a second determination module for determining the operating state of the tensioning mechanism according to the operating range of the oil pump motor torque when the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state; and a prompt module for issuing a prompt signal for shutdown and maintenance when the operating state of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state.

[0013] According to a third aspect of the present application, an engineering equipment is provided, comprising: a transmission system, the transmission system comprising an oil pump motor and a drive motor; a motor controller, the motor controller being used to collect the motor status of the oil pump motor and the motor status of the drive motor; a monitoring device for the transmission system as described in the second aspect or any one of the implementations of the second aspect, the monitoring device for the transmission system being communicatively connected to the motor controller, the oil pump motor and the drive motor.

[0014] The transmission system monitoring method, device, and engineering equipment provided in this application first determine the operating status of the transmission mechanism based on the drive motor torque. By monitoring the operating range of the drive motor torque, transmission mechanism failures can be promptly detected, reducing the risk of overall transmission system failure caused by transmission mechanism failures. When the drive motor torque is normal, the operating status of the tensioning mechanism is monitored based on the oil pump motor torque. By monitoring the operating range of the oil pump motor torque, abnormal conditions of the tensioning mechanism can be promptly detected, thereby promptly responding to abnormal conditions and issuing abnormal alarms, thereby protecting the mechanical structure of the transmission system. In addition, by using the motor status feedback from the motor controller to determine transmission system abnormalities, there is no need to add new sensors, saving monitoring costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other purposes, features, and advantages of the present application will become more apparent through a more detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are intended to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0016] Figure 1 It is a structural diagram of the driving principle of the belt transmission provided by an exemplary embodiment of the present application.

[0017] Figure 2 It is a flowchart of a method for monitoring a transmission system provided by an exemplary embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the monitoring process of the transmission system of engineering equipment provided by an exemplary embodiment of the present application.

[0019] Figure 4 It is a structural schematic diagram of a monitoring device for a transmission system provided by an exemplary embodiment of the present application.

[0020] Figure 5 It is a structural diagram of an electronic device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0021] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described herein.

[0022] In engineering equipment, a motor-driven vibration transmission system can be used. This transmission system primarily consists of an active mechanism, a driven mechanism, a drive belt, and a tensioning mechanism, with dynamic tension adjustment achieved through a hydraulic system. The active mechanism includes a driving pulley and a drive motor. The driving pulley is directly driven by the drive motor, with the motor output shaft connected to the driving pulley via a coupling or reducer. The active mechanism provides the system's primary power, driving the drive belt (belt / chain). The speed can be adjusted to suit different operating conditions through variable frequency speed regulation or servo control. The driven mechanism includes a driven pulley (or driven pulley), which receives the power transmitted by the drive belt and drives the load (such as a roller, conveyor belt, or workbench). The drive belt, which can be either a belt drive or a chain drive, is the power transmission medium. It transmits power from the active pulley to the driven pulley. In a vibration system, the belt must be fatigue-resistant. Therefore, long-term vibration of the belt can easily lead to fatigue fracture, and a tensioning mechanism is required to maintain stable tension. The tensioning mechanism includes an oil pump motor and a hydraulic cylinder. The hydraulic cylinder is supplied with oil by a hydraulic pump, which is driven by the oil pump motor. The tensioning mechanism automatically adjusts the tension of the transmission belt to prevent slippage or overload. The oil pump motor and the drive motor are powered by the first motor controller and the second motor controller respectively. The first motor controller and the second motor controller obtain energy from the power battery of the engineering equipment. Therefore, Figure 1 This is a schematic diagram of the driving principle of a belt drive provided by an exemplary embodiment of the present application. Figure 1 For example, the driving principle of the belt drive is as follows: the power battery 11 supplies power to the first motor controller 12 and the second motor controller 13, the oil pump motor 14 is powered by the first motor controller 12, the drive motor 15 is powered by the second motor controller 13, the hydraulic pump of the hydraulic cylinder 16 is driven by the oil pump motor 14, the driving wheel 17 is driven by the drive motor 15, and the driven wheel 18 receives power transmitted by the transmission belt and is driven by the power transmitted by the transmission belt. The working process of the transmission system is as follows: the drive motor drives the driving wheel to rotate, which drives the driven wheel through the transmission belt, the oil pump motor drives the hydraulic cylinder to operate, and the tensioner position is adjusted in real time to ensure stable engagement of the transmission belt.

[0023] In engineering equipment transmission systems using belts, damaged or fatigued belts can break during use. During this period, the tensioning mechanism continues to exert force, potentially causing stress damage to related structures. To monitor the stable operation of the transmission system, existing technologies require external sensors to monitor the belt status or the operating status of the driven mechanism. This approach requires additional sensing components and increases costs.

[0024] In order to solve the above-mentioned problem of high cost of introducing external sensors to monitor the transmission system and to detect abnormal conditions of the transmission system in a timely manner, this application proposes a transmission system monitoring method. Figure 2This is a flow chart of a method for monitoring a transmission system provided by an exemplary embodiment of the present application. Figure 2 For example, first, based on the motor state feedback from the motor controller, the drive motor torque and the oil pump motor torque are obtained (see Figure 2 S210). Without adding external sensors, the motor status feedback from the motor controller can provide reliable data for subsequent monitoring. The drive mechanism is mainly monitored by the drive motor torque, and the tensioning mechanism is monitored by the oil pump motor torque. Then, the operating status of the transmission mechanism is determined based on the operating range of the drive motor torque (see Figure 2 The drive motor is responsible for driving the driving wheel, thereby driving the belt drive. The operating range of the drive motor torque can reflect whether the transmission system is operating normally. Then, when the operating state of the transmission mechanism indicates that the transmission mechanism is operating under normal load, the operating state of the tensioning mechanism is determined according to the operating range of the oil pump motor torque (see Figure 2 If the transmission mechanism is abnormal, the oil pump motor torque can be used to determine whether the transmission mechanism is abnormal. Finally, when the operating status of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state, a shutdown and maintenance prompt signal is issued (see Figure 2 When the tensioning mechanism is abnormal, it is recommended to shut down the machine for maintenance to protect the mechanical structure of the transmission system.

[0025] Combined with the following Figure 2 , a more detailed introduction to the transmission system monitoring method provided in the embodiment of the present application is given.

[0026] In S210 , the drive motor torque and the oil pump motor torque are acquired based on the motor state fed back by the motor controller.

[0027] When the hydraulic cylinder is actuated, pressure is generated. This hydraulic pressure is transmitted to the pump end, which then feeds back to the motor shaft as torque. At this point, the drive motor torque and the oil pump motor torque will change. The drive motor torque directly determines the output power of the driving wheel and affects the stress state of the entire transmission chain (gears, belts, driven wheels, etc.). Excessively large or small values of the drive motor torque can reflect abnormalities in the transmission system. Therefore, monitoring the drive motor torque can reveal the health of the main transmission chain and clarify the load and efficiency of the transmission mechanism. The oil pump motor torque determines the hydraulic system pressure, directly affecting the thrust of the tensioning cylinder, which in turn controls the tightness of the drive belt / chain. Excessively large or small torque of the oil pump motor can reflect abnormalities in the tensioning mechanism. Therefore, monitoring the oil pump motor torque can reflect the stability of the tensioning system, maintain the safety of the transmission system, and increase the life of the transmission system.

[0028] In S220 , the operating state of the transmission mechanism is determined according to the operating range of the driving motor torque.

[0029] In some embodiments, when the drive motor torque is greater than or equal to a preset drive torque value and lasts for a period greater than or equal to a first preset time, the operating state of the transmission mechanism is determined to be a transmission mechanism overload or transmission mechanism failure. For example, excessive drive motor torque may indicate mechanical seizure (e.g., bearing corrosion), excessive belt tightening, or a sudden load change (blockage in downstream equipment). When the transmission mechanism is overloaded or fails, a shutdown and maintenance prompt is issued, suggesting that the system be shut down for maintenance to avoid excessive consumption under light loads or underspeed under heavy loads, which could damage the transmission system. Furthermore, the first preset time can be determined based on the performance of the transmission system. Motor torque is not an absolutely constant value; its output is affected by factors such as current harmonics, mechanical vibration, and load variations, and exhibits periodic fluctuations. Therefore, relying directly on instantaneous values to determine a fault may cause the system to shut down during normal fluctuations, affecting production efficiency and equipment life. To reduce the rate of false positives caused by transient interference, a transmission mechanism abnormality determination is made only when the monitored drive motor torque is greater than or equal to the preset drive torque value and lasts for a period greater than or equal to a first preset time.

[0030] In some embodiments, when the transmission system is determined to be in an unloaded state, the drive motor torque in the unloaded state is obtained. Specifically, the drive motor torque when the transmission system is unloaded is obtained and used as a reference to determine the drive motor torque of the transmission system when loaded. It is understood that depending on the different stages of operation of the transmission system, there is an unloaded phase in the initial stage, which is not completely unloaded and may have a certain amount of torque, but the entire system is determined to be in an unloaded state.

[0031] After defining a no-load state and obtaining a reference no-load drive motor torque, the no-load drive motor torque is used as the no-load motor torque value to determine the no-load motor torque value. Using the no-load motor torque value as a judgment reference, when the drive motor torque is less than the no-load motor torque value and the duration is greater than or equal to a first preset time, the operating state of the transmission mechanism is determined to be that the driving force of the transmission mechanism is less than the initial state; wherein the initial state represents the state of the transmission mechanism when the transmission system is determined to be in the no-load state.

[0032] In some embodiments, a transmission mechanism's driving force falling below its initial state may indicate a transmission system interruption, prompting a shutdown for maintenance. For example, a sudden drop in the drive motor torque to zero may indicate a belt breakage. Therefore, to promptly alert users to any anomalies and ensure transmission system safety, a shutdown for maintenance signal is issued when the transmission mechanism's driving force falls below its initial state.

[0033] In S230 , when the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state, the operating state of the tensioning mechanism is determined according to the operating range of the oil pump motor torque.

[0034] In some embodiments, when the drive motor torque is within an operating range between a preset drive torque value and a no-load motor torque value, the transmission mechanism is determined to be operating in a normal load state. When the drive motor torque is neither greater than the preset drive torque value nor less than the no-load motor torque value, the transmission mechanism is operating normally, with no faults or abnormalities. Based on this, the oil pump motor torque is then determined to determine the operating state of the tensioning mechanism.

[0035] In S240 , when the operating state of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state, a prompt signal for stopping the machine for maintenance is issued.

[0036] The oil pump motor torque determines the hydraulic system pressure, directly affecting the thrust of the tensioning cylinder, and thus controlling the tightness of the transmission belt / chain. When the oil pump motor torque increases or decreases abnormally, it indicates that there is an abnormality in the tensioning mechanism. The abnormality of the tensioning mechanism will also cause structural damage to the entire transmission system. Therefore, to further ensure the structural safety of the transmission system, the operating range of the oil pump motor torque is also monitored in real time.

[0037] In some embodiments, when the oil pump motor torque is greater than or equal to a first preset torque value and the duration is greater than or equal to a second preset time, the operating state of the tensioning mechanism is determined to be that the cylinder is extended or retracted to the limit position; when the operating state of the tensioning mechanism is that the cylinder is extended or retracted to the limit position, a prompt signal for shutdown and maintenance is issued. When the cylinder is extended or retracted to the limit position, continued movement may damage the equipment. Therefore, to ensure the structural safety of each device in the transmission system, when the duration is greater than or equal to the second preset time, a prompt signal for shutdown and maintenance is issued in a timely manner, suggesting shutdown and maintenance to maintain the safety of the transmission system. In addition, the setting of the second preset time is also to ensure the accuracy of torque monitoring, avoid misjudgment caused by instantaneous interference, provide sufficient evolution time for fault characteristics, and ultimately ensure safe monitoring of the transmission system.

[0038] In some embodiments, when the oil pump motor torque is within an operating range between a first preset torque value and a second preset torque value, and the duration is greater than or equal to a third preset time, the tensioning mechanism is determined to be operating abnormally and the cylinder has experienced unexpected motion. The second preset torque value is less than the first preset torque value. When the tensioning mechanism is operating abnormally and the cylinder has experienced unexpected motion, a shutdown and maintenance prompt is issued. It is understood that when the oil pump motor torque is between the first and second preset torque values, the cylinder may passively extend and retract due to a system abnormality, without control commands or outside the preset travel range. If this unexpected motion persists, it may cause damage to the hydraulic pump, mechanical structure, or the entire transmission system. Therefore, to mitigate the negative impact of tensioning mechanism abnormalities, a shutdown and maintenance prompt is issued promptly, recommending that the system be shut down for maintenance. The third preset time can be configured based on the performance of the transmission system or the oil pump motor.

[0039] In some embodiments, when the oil pump motor torque is less than a second predetermined torque value, the tensioning mechanism is determined to be operating normally. At this point, both the transmission mechanism and the tensioning mechanism are operating under normal load conditions, eliminating the need for downtime and maintenance. Monitoring of the motor status reported by the motor controller can be continued.

[0040] In order to solve the above-mentioned problem of the need to introduce external sensors to monitor the transmission system, which is costly, and to be able to detect abnormal conditions of the transmission system in a timely manner, the present application also proposes an engineering equipment, which includes: a transmission system, the transmission system includes an oil pump motor and a drive motor; a motor controller, the motor controller is used to collect the motor status of the oil pump motor and the motor status of the drive motor, a transmission system monitoring device is installed in the engineering equipment, the transmission system monitoring device is communicated with the motor controller, the oil pump motor and the drive motor, and the transmission system monitoring device is used to execute the transmission system monitoring method.

[0041] In some embodiments, Figure 3 This is a schematic diagram of a monitoring process of a transmission system of an engineering equipment provided by an exemplary embodiment of the present application. Figure 3 For example, the monitoring method of the transmission system is used in engineering equipment. The monitoring process can be: First, the engineering equipment is powered on and the oil pump motor is started (see Figure 3 S311), the oil cylinder is tightened, and the oil pump motor torque is obtained (see Figure 3 S312); the drive motor starts and obtains the no-load motor torque value in the no-load state (see Figure 3 S313), the transmission system continues to work (see Figure 3 In step S314 , the drive motor torque and the oil pump motor torque are monitored during operation.

[0042] Determine whether the drive motor torque is greater than or equal to the preset drive torque value (see Figure 3 If the driving motor torque is greater than or equal to the preset driving torque value, it is determined whether the duration is greater than or equal to the first preset time length (see S321). Figure 3 If the duration is greater than or equal to the first preset duration, the operation is stopped (see S322). Figure 3 S330), check the transmission system (see Figure 3 If the duration is less than the first preset duration, execute S314.

[0043] If the drive motor torque is less than the preset drive torque value, it is determined whether the drive motor torque is greater than or equal to the no-load motor torque value (see Figure 3 If the driving motor torque is less than the no-load motor torque value, execute S322. If the duration is greater than or equal to the first preset duration, determine that the operating state of the transmission mechanism is that the driving force of the transmission mechanism is less than the initial state, and execute S330 and S340. If the duration is less than the first preset duration, execute S314.

[0044] If the driving motor torque is in the operating range between the preset driving torque value and the no-load motor torque value, it is determined that the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state. There is no need to stop the operation, check the transmission system, and continue to execute S314.

[0045] If the driving motor torque is less than the preset driving torque value and the driving motor torque is greater than the no-load motor torque value, it is determined whether the oil pump motor torque is greater than or equal to the first preset torque value (see Figure 3 If the oil pump motor torque is greater than or equal to the first preset torque value, determine whether the duration is greater than or equal to the second preset time length (see S324). Figure 3 If the duration is greater than or equal to the second preset time, the operating state of the tensioning mechanism is determined to be that the cylinder is extended or retracted to the limit position, and S330 and S340 are executed. If the duration is less than the second preset time, S314 is executed.

[0046] If the oil pump motor torque is less than the first preset torque value, determine whether the oil pump motor torque is greater than or equal to the second preset torque value (see Figure 3 If the oil pump motor torque is less than the second preset torque value, it is determined that the operating state of the tensioning mechanism is normal, and S314 is executed.

[0047] If the oil pump motor torque is greater than or equal to the second preset torque value, that is, the oil pump motor torque is in the operating range between the first preset torque value and the second preset torque value, it is determined whether the duration is greater than or equal to the third preset time length (see Figure 3 If the duration is greater than the third preset time, it is determined that the operation state of the tensioning mechanism is abnormal and the cylinder has an unexpected action, and S330 and S340 are executed. If the duration is less than the third preset time, S314 is executed.

[0048] Figure 4 FIG. 1 is a schematic diagram of a monitoring device for a transmission system according to an exemplary embodiment of the present invention. Figure 4 As shown, the transmission system includes a transmission mechanism and a tensioning mechanism, and the monitoring device 4 of the transmission system includes: an acquisition module 41, used to obtain the driving motor torque and the oil pump motor torque based on the motor state feedback from the motor controller; a first determination module 42, used to determine the operating state of the transmission mechanism according to the operating range of the driving motor torque; a second determination module 43, used to determine the operating state of the tensioning mechanism according to the operating range of the oil pump motor torque when the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state; a prompt module 44, used to send a prompt signal for shutdown and maintenance when the operating state of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state.

[0049] As a possible implementation method, the first determination module 42 can be configured as follows: when the driving motor torque is greater than or equal to the preset driving torque value, and the duration is greater than or equal to the first preset time length, the operating state of the transmission mechanism is determined to be a transmission mechanism overload or a transmission mechanism failure; wherein, the transmission system monitoring device 4 can be correspondingly configured as follows: when the transmission mechanism is overloaded or the transmission mechanism fails, a prompt signal for shutdown and maintenance is issued.

[0050] As a possible implementation, the transmission system monitoring device 4 can be configured to: when the transmission system is determined to be in an unloaded state, obtain the drive motor torque in the unloaded state; and use the drive motor torque in the unloaded state as the unloaded motor torque value. Specifically, the first determination module 42 can be configured to: when the drive motor torque is less than the unloaded motor torque value and the duration is greater than or equal to a first preset time length, determine that the operating state of the transmission mechanism is that the driving force of the transmission mechanism is less than the initial state; wherein the initial state represents the state of the transmission mechanism when the transmission system is determined to be in an unloaded state.

[0051] As a possible implementation, the monitoring device 4 of the transmission system may be configured to send a prompt signal for stopping the machine for maintenance when the driving force of the transmission mechanism is less than an initial state.

[0052] As a possible implementation, the first determination module 42 may be configured to: when the drive motor torque is in an operating range between a preset drive torque value and a no-load motor torque value, determine that the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state.

[0053] As a possible implementation method, the second determination module 43 can be configured as follows: when the oil pump motor torque is greater than or equal to the first preset torque value, and the duration is greater than or equal to the second preset time length, it is determined that the operating state of the tensioning mechanism is that the cylinder is extended or contracted to the extreme position; wherein, the prompt module 44 can be correspondingly configured as follows: when the operating state of the tensioning mechanism is that the cylinder is extended or contracted to the extreme position, a prompt signal for shutdown and maintenance is issued.

[0054] As a possible implementation method, the second determination module 43 can be configured as follows: when the oil pump motor torque is in the operating range between the first preset torque value and the second preset torque value and the duration is greater than or equal to the third preset time, it is determined that the operating state of the tensioning mechanism is abnormal and the cylinder has an unexpected action; wherein the second preset torque value is less than the first preset torque value; wherein the prompt module 44 can be correspondingly configured as follows: when the operating state of the tensioning mechanism is abnormal and the cylinder has an unexpected action, a prompt signal for shutdown and maintenance is issued.

[0055] As a possible implementation, the second determining module 43 may be configured to determine that the operating state of the tensioning mechanism is a normal state when the oil pump motor torque is less than a second preset torque value.

[0056] An electronic device includes: a processor; a memory for storing instructions executable by the processor; and the processor is used to execute the transmission system monitoring method described in the embodiment provided in this application.

[0057] Below, reference Figure 5 The electronic device according to the embodiment of the present application is described. The electronic device may be either or both of the first device and the second device, or a standalone device independent of them, and the standalone device may communicate with the first device and the second device to receive collected input signals from them.

[0058] Figure 5 The figure shows a block diagram of an electronic device according to an embodiment of the present application.

[0059] like Figure 5 As shown, the electronic device 50 includes one or more processors 51 and a memory 52 .

[0060] The processor 51 may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device 50 to perform desired functions.

[0061] The memory 52 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The non-volatile memory may include, for example, read-only memory (ROM), a hard disk, a flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 51 may execute the program instructions to implement the transmission system monitoring method of the various embodiments of the present application described above and / or other desired functions. Various contents such as input signals, signal components, noise components, etc. may also be stored in the computer-readable storage medium.

[0062] In one example, the electronic device 50 may further include an input device 53 and an output device 54 , and these components are interconnected via a bus system and / or other forms of connection mechanisms (not shown).

[0063] When the electronic device is a stand-alone device, the input device 53 may be a communication network connector for receiving collected input signals from the first device and the second device.

[0064] In addition, the input device 53 may also include, for example, a keyboard, a mouse, and the like.

[0065] The output device 54 can output various information to the outside, including determined distance information, direction information, etc. The output device 54 can include, for example, a display, a speaker, a printer, a communication network and a remote output device connected thereto, and the like.

[0066] Of course, to simplify, Figure 5 Only some of the components related to the present application in the electronic device 50 are shown, and components such as a bus, an input / output interface, etc. are omitted. In addition, the electronic device 50 may further include any other appropriate components according to specific application conditions.

[0067] The computer program product may be written in any combination of one or more programming languages to implement the program code for performing the operations of the embodiments of the present application, including object-oriented programming languages such as Java, C++, and conventional procedural programming languages such as "C" or similar programming languages. The program code may be executed entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0068] A computer-readable storage medium stores a computer program for executing the transmission system monitoring method described in the embodiments provided in this application.

[0069] The computer-readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can, for example, include but is not limited to a system, device or component of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0070] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A transmission system monitoring method, characterized in that: The transmission system includes a transmission mechanism and a tensioning mechanism, and the monitoring method of the transmission system includes: Based on the motor status feedback from the motor controller, the drive motor torque and the oil pump motor torque are obtained; determining an operating state of the transmission mechanism according to an operating range of the drive motor torque; When the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state, determining the operating state of the tensioning mechanism according to the operating range of the oil pump motor torque; When the operating state of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state, a prompt signal for stopping the machine for maintenance is issued.

2. The transmission system monitoring method according to claim 1, characterized in that: Determining the operating state of the transmission mechanism according to the operating range of the drive motor torque includes: When the driving motor torque is greater than or equal to a preset driving torque value and the duration is greater than or equal to a first preset time length, determining that the operating state of the transmission mechanism is the transmission mechanism overload or the transmission mechanism failure; The transmission system monitoring method further includes: When the transmission mechanism is overloaded or fails, a prompt signal for stopping the machine for maintenance is issued.

3. The transmission system monitoring method according to claim 2, characterized in that: The transmission system monitoring method further includes: When the transmission system is determined to be in a no-load state, obtaining the driving motor torque in the no-load state; The driving motor torque in the no-load state is taken as the no-load motor torque value; Wherein, determining the operating state of the transmission mechanism according to the operating range of the driving motor torque further includes: When the driving motor torque is less than the no-load motor torque value and the duration is greater than or equal to the first preset time length, the operating state of the transmission mechanism is determined to be that the driving force of the transmission mechanism is less than the initial state; wherein, the initial state represents the state of the transmission mechanism when the transmission system is determined to be in a no-load state.

4. The transmission system monitoring method according to claim 3, characterized in that: The transmission system monitoring method further includes: When the driving force of the transmission mechanism is less than the initial state, a prompt signal for stopping the machine for maintenance is issued.

5. The transmission system monitoring method according to claim 3, characterized in that: Determining the operating state of the transmission mechanism according to the operating range of the drive motor torque further includes: When the driving motor torque is in an operating range between the preset driving torque value and the no-load motor torque value, determining the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state.

6. The transmission system monitoring method according to claim 1, characterized in that: When the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state, determining the operating state of the tensioning mechanism according to the operating range of the oil pump motor torque includes: When the oil pump motor torque is greater than or equal to a first preset torque value and the duration is greater than or equal to a second preset time length, determining that the operating state of the tensioning mechanism is that the oil cylinder is extended or retracted to a limit position; When the operating state of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state, a prompt signal for stopping the machine for maintenance is issued, including: When the operating state of the tensioning mechanism is that the oil cylinder is extended or retracted to the limit position, a prompt signal for stopping the machine for maintenance is issued.

7. The transmission system monitoring method according to claim 6, characterized in that: When the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state, determining the operating state of the tensioning mechanism according to the operating range of the oil pump motor torque includes: When the oil pump motor torque is in an operating range between the first preset torque value and the second preset torque value and the duration is greater than or equal to a third preset time, it is determined that the operating state of the tensioning mechanism is abnormal and the oil cylinder has an unexpected action; wherein the second preset torque value is less than the first preset torque value; When the operating state of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state, a prompt signal for stopping the machine for maintenance is issued, including: When the operating state of the tensioning mechanism is abnormal and the oil cylinder has an unexpected action, a prompt signal for stopping the machine for maintenance is issued.

8. The transmission system monitoring method according to claim 7, characterized in that: When the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state, determining the operating state of the tensioning mechanism according to the operating range of the oil pump motor torque includes: When the oil pump motor torque is less than the second preset torque value, it is determined that the operating state of the tensioning mechanism is that the tensioning mechanism is operating in a normal state.

9. A monitoring device for a transmission system, characterized in that: The transmission system includes a transmission mechanism and a tensioning mechanism, and the monitoring device of the transmission system includes: An acquisition module is used to obtain the drive motor torque and the oil pump motor torque based on the motor state feedback from the motor controller; a first determining module, configured to determine an operating state of the transmission mechanism according to an operating range of the drive motor torque; a second determining module, configured to determine the operating state of the tensioning mechanism according to the operating range of the oil pump motor torque when the operating state of the transmission mechanism indicates that the transmission mechanism is operating in a normal load state; The prompt module is used to send a prompt signal for stopping the tensioning mechanism for maintenance when the operating status of the tensioning mechanism indicates that the tensioning mechanism is operating in an abnormal state.

10. An engineering equipment, characterized in that: include: A transmission system, comprising an oil pump motor and a drive motor; a motor controller, the motor controller being used to collect the motor status of the oil pump motor and the motor status of the drive motor; The transmission system monitoring device according to claim 9, wherein the transmission system monitoring device is communicatively connected to the motor controller, the oil pump motor and the drive motor.

Images