CN115448166A - Safety protection method and device for hoisting mechanism and operation machine - Google Patents
Safety protection method and device for hoisting mechanism and operation machine Download PDFInfo
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- CN115448166A CN115448166A CN202210981376.XA CN202210981376A CN115448166A CN 115448166 A CN115448166 A CN 115448166A CN 202210981376 A CN202210981376 A CN 202210981376A CN 115448166 A CN115448166 A CN 115448166A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
- B66C2700/084—Protection measures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention provides a safety protection method and device for a hoisting mechanism and an operating machine, belonging to the technical field of safety early warning of the hoisting mechanism, wherein the safety protection method for the hoisting mechanism comprises the steps of detecting working parameters of a driving component of the hoisting mechanism, and determining the working state of the driving component based on the working parameters; if the working state is abnormal, the winch mechanism is controlled to stop working and an abnormal prompt is sent out.
Description
Technical Field
The invention relates to the technical field of safety early warning of a hoisting mechanism, in particular to a safety protection method and device of the hoisting mechanism and an operation machine.
Background
The hoisting mechanism is one of the most main working structures of the crane, and the safety of the operation is particularly important. Once the hoisting mechanism is damaged, dangers such as heavy object falling can be caused, and the consequences are not reasonable.
Therefore, how to ensure the working safety of the hoisting mechanism becomes a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention provides a safety protection method and device for a hoisting mechanism and an operating machine, which are used for solving the defect that the safety detection of the hoisting mechanism is not in place in the prior art.
The invention provides a safety protection method for a hoisting mechanism, which comprises the following steps:
detecting working parameters of a driving assembly of the hoisting mechanism;
determining an operating state of the drive assembly based on the operating parameter;
and if the working state is abnormal, controlling the hoisting mechanism to stop working and giving an abnormal prompt.
According to the safety protection method for the hoisting mechanism provided by the invention, the working parameters of the driving component comprise: the pressure value of the descending side of the motor and the oil drainage pressure value of the motor;
correspondingly, the determining the working state of the driving component based on the working parameter comprises:
and when the descending side pressure value of the motor is smaller than a preset descending side pressure value and/or the oil drainage pressure value of the motor is larger than a preset oil drainage pressure value, determining that the working state of the motor is abnormal.
According to the safety protection method for the hoisting mechanism provided by the invention, when the descending side pressure value of the motor is smaller than the preset descending side pressure value and/or when the oil drainage pressure value of the motor is larger than the preset oil drainage pressure value, the sending of the abnormal prompt comprises the following steps:
determining an abnormal position of the motor;
and sending an exception prompt containing the exception position.
According to the safety protection method for the hoisting mechanism provided by the invention, after the working state of the motor is determined to be abnormal, the safety protection method further comprises the following steps:
recording the abnormal times of the motor;
and when the abnormal times are more than the preset times, sending out a motor replacement prompt.
According to the safety protection method for the hoisting mechanism provided by the invention, the working parameters of the driving component comprise: a servo pressure value of the deceleration brake;
correspondingly, determining the working state of the driving component based on the working parameter comprises the following steps:
and when the servo pressure value of the speed reducing brake is smaller than a preset servo pressure value, determining that the speed reducing brake is abnormal.
According to the safety protection method for the hoisting mechanism, provided by the invention, the working parameters of the driving component comprise: the hydraulic oil temperature of the main pump hydraulic system;
correspondingly, determining the working state of the driving component based on the working parameter comprises the following steps:
and when the hydraulic oil temperature of the main pump hydraulic system is lower than or equal to the preset hydraulic oil temperature, determining that the main pump hydraulic system is abnormal.
According to the safety protection method for the hoisting mechanism provided by the invention, after the main pump hydraulic system is determined to be abnormal, the safety protection method further comprises the following steps:
starting an engine for preheating, and increasing the temperature of the hydraulic oil;
and when the hydraulic oil temperature is higher than the preset hydraulic oil temperature, loading overflow through an auxiliary pump to heat the hydraulic oil temperature until the hydraulic oil temperature reaches the preset safe temperature.
According to the safety protection method for the hoisting mechanism provided by the invention, after the hydraulic oil temperature reaches the preset safety temperature, the safety protection method further comprises the following steps:
and when detecting that the hoisting mechanism acts for the first time, sending a safety operation prompt.
The invention also provides a safety protection device for the hoisting mechanism, which comprises:
the detection module is used for detecting working parameters of a driving component of the hoisting mechanism;
the determining module is used for determining the working state of the driving component based on the working parameters;
and the control module is used for controlling the hoisting mechanism to stop working and sending an abnormal prompt if the working state is abnormal.
The invention also provides a working machine which is used for executing the safety protection method of the hoisting mechanism.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor, wherein when the processor executes the program, the safety protection method of the hoisting mechanism is realized.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a hoisting mechanism safety protection method as described in any of the above.
The invention also provides a computer program product, which comprises a computer program, wherein the computer program is executed by a processor to realize the safety protection method of the hoisting mechanism.
The invention provides a safety protection method and device for a hoisting mechanism and an operating machine, wherein the safety protection method for the hoisting mechanism is characterized in that the working state of a driving component of the hoisting mechanism is determined by detecting the working parameter of the driving component and based on the working parameter; if the working state is abnormal, the hoisting mechanism is controlled to stop working and an abnormal prompt is sent out.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a hoisting mechanism safety protection method provided by the invention;
fig. 2 is a second schematic flow chart of the hoisting mechanism safety protection method provided by the present invention;
fig. 3 is a schematic structural diagram of a hoisting mechanism safety protection device provided by the invention;
fig. 4 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a method, an apparatus and a working machine for protecting the safety of a hoisting mechanism according to the present invention with reference to fig. 1 to 4.
Fig. 1 is a schematic flow chart of a hoisting mechanism safety protection method provided by the invention.
As shown in fig. 1, in the safety protection method for a hoisting mechanism provided in the embodiment of the present invention, the execution main body may be a control system of the hoisting mechanism, and the method mainly includes the following steps:
101. and detecting the working parameters of the driving component of the hoisting mechanism.
In a specific implementation process, a hoisting mechanism of a crane is taken as an example, and a driving assembly of the hoisting mechanism comprises a main pump, a motor, a reducer brake and the like. The driving assembly is the basic guarantee for guaranteeing the normal work of the hoisting mechanism, therefore, the normal work of the driving assembly is the premise of the normal work of the hoisting mechanism.
The mode of detecting the working parameters of the driving assembly of the hoisting mechanism can be that the sensors are used for determining the current working parameters corresponding to different driving assemblies by judging the values collected by the sensors, and the working parameters comprise pressure values, temperature values and the like.
102. Based on the operating parameter, an operating state of the drive assembly is determined.
After the working parameters of the driving assembly are accurately detected, the working state of the driving assembly can be determined according to the working parameters, and the working state comprises a normal state and an abnormal state. When the driving assembly works normally, the working parameters of the driving assembly are maintained within a certain range, for example, the pressure value is maintained within a certain pressure interval, the working parameters at the moment are normal values, if the pressure value exceeds the pressure interval, the abnormal sudden change of the pressure value is shown, and the working state of the pressure value can be determined to be an abnormal state.
The mode of determining the working state of the driving assembly through the working parameters can be that the currently detected working parameters are compared with preset safety parameters, if the currently detected working parameters are determined through comparison, the currently detected working parameters are within a reasonable parameter change range, the driving assembly at the moment is indicated to be in a normal working state, if the currently detected working parameters exceed the preset reasonable parameter change range, the currently detected working parameters are indicated to be abnormal due to the fact that the driving assembly is abnormal, and the current working state can be determined to be in an abnormal state.
The working state of the driving assembly can be determined based on the working parameters, a working parameter value fault diagnosis model can be input in a machine learning model mode, the working state of the driving assembly is output, the working state comprises a normal state and an abnormal state, the working parameters comprise main pump working parameters, speed reducer brake working parameters, motor working parameters and the like, and the fault diagnosis model is obtained by training based on pre-constructed working parameter samples and working state samples. Through the common processing and analysis of the working parameters of the main pump, the working parameters of the speed reducer brake and the working parameters of the motor, the working state of the driving assembly is determined according to the combination relation of the three parameters, the accuracy of the fault diagnosis of the driving assembly can be guaranteed, the speed of the fault diagnosis can be guaranteed, the independent judgment of each working parameter is avoided, the fusion judgment is carried out again, and the fault diagnosis efficiency is improved.
103. And if the working state is abnormal, controlling the hoisting mechanism to stop working and giving an abnormal prompt.
After the working state of the driving assembly is determined through analysis and judgment of the working parameters, if the working state of the driving assembly indicates normal, the hoisting mechanism is controlled to keep working normally. And if the working state is abnormal, the hoisting mechanism needs to be controlled to stop working, so that no dangerous accident can be ensured. The defined working state is abnormal, and is fault early warning, namely no real fault occurs, for example, the working parameter is a pressure value, when the pressure value is 18bar, the driving assembly is indicated to be in fault, and when the working state is determined, the preset safety parameter can be 17bar, so that fault early warning before the real fault is performed, and when the fault does not occur, an object suddenly falls down to avoid the occurrence of dangerous accidents.
In order to avoid the occurrence of dangerous accidents, except for controlling the hoisting mechanism to stop working, an abnormal alarm prompt is sent out to timely inform relevant personnel that potential safety hazards exist in the current hoisting mechanism, and the overhaul and maintenance of the hoisting mechanism are completed in time.
The method for sending the abnormal prompt can be prompting in a center control interface of the crane in a pop-up window mode or displaying through other display interfaces. The abnormal prompt can be sent out in the modes of sound, light and the like, and the purpose of sending out the abnormal prompt is to quickly and effectively inform related personnel of abnormal conditions so as to quickly finish fault maintenance and prediction and ensure the working efficiency of the crane. Therefore, other prompting manners including short messages and the like are also possible, and a description thereof is omitted in this embodiment.
According to the safety protection method for the hoisting mechanism provided by the embodiment, the working state of the driving assembly is determined by detecting the working parameters of the driving assembly of the hoisting mechanism and based on the working parameters; if the working state is abnormal, the winch mechanism is controlled to stop working and an abnormal prompt is sent out.
Fig. 2 is a second schematic flow chart of the hoisting mechanism safety protection method provided by the present invention.
Further, on the basis of the above embodiment, as shown in fig. 2, the operating parameters of the driving assembly in this embodiment include: the pressure value of the descending side of the motor and the oil drainage pressure value of the motor; correspondingly, the working state of the driving component is determined based on the working parameters, and the working state comprises the following steps: and when the descending side pressure value of the motor is smaller than the preset descending side pressure value and/or the oil drainage pressure value of the motor is larger than the preset oil drainage pressure value, determining that the working state of the motor is abnormal. Wherein, the decline side pressure value of motor refers to the pressure value of motor decline side hydraulic fluid port, and the motor divide into both sides, rises side and decline side, selects the pressure value of detecting the decline side hydraulic fluid port of motor in this embodiment. The motor is directly or indirectly connected with the winch, and the winch can lift or lower heavy objects through a steel wire rope. The motor is provided with two working oil ports, the oil ports of hydraulic oil entering the motor are different, the rotation directions of a winch connected with the motor are different, the oil port of the winch for lifting a heavy object is called as the ascending side of the motor, and the side for lowering the heavy object is called as the descending side.
Specifically, after the engine is started, a pressure value of a descending side of the motor and a pressure value of oil drainage of the motor are detected, wherein detection orders of the pressure value of the descending side of the motor and the pressure value of the oil drainage of the motor are not distinguished, and can be sequentially detected or simultaneously detected without specific limitation. And after the pressure value of the descending side of the motor is detected, comparing the pressure value of the descending side of the motor with a preset pressure value of the descending side, and if the pressure value of the descending side of the motor is greater than or equal to the preset pressure value of the descending side, normally operating. If the pressure value of the descending side of the motor is smaller than the preset pressure value of the descending side, the working state of the motor is abnormal, and under the ordinary condition, the size of the preset pressure value of the descending side can be 8bar. Namely, when the pressure value of the descending side of the motor is less than 8bar, the abnormal working state of the motor is indicated. The engine can be started to perform real-time detection after the operation machinery is powered on, and the risk of the working of the hoisting mechanism can be effectively reduced and the absolute safety of the working of the hoisting mechanism can be ensured by an active detection mode.
Similarly, when the oil drainage pressure value of the motor is detected, the oil drainage pressure value of the motor is compared with the preset oil drainage pressure value, if the oil drainage pressure value of the motor is smaller than or equal to the preset oil drainage pressure value, it is indicated that the motor at the moment is in a normal working state, and if the oil drainage pressure value of the motor is larger than the preset oil drainage pressure value, it is indicated that the motor at the moment is in a state of abnormal working, for example, the preset oil drainage pressure value can be 3bar. When the oil drainage pressure value of the motor is larger than 3bar, the working state of the motor is abnormal.
When any one of the pressure value of the descending side of the motor and the oil drainage pressure value of the motor is abnormal, the working state of the motor at the moment is indicated to be abnormal, and if both the pressure value of the descending side of the motor and the oil drainage pressure value of the motor are abnormal, the motor at the moment is also indicated to be in a working abnormal state.
Further, on the basis of the foregoing embodiment, as shown in fig. 2, in this embodiment, when the descent-side pressure value of the motor is smaller than the preset descent-side pressure value, and/or when the oil drainage pressure value of the motor is larger than the preset oil drainage pressure value, the sending an abnormal prompt includes: determining an abnormal position of the motor; and sending an exception prompt containing the exception position. Wherein, when the decline lateral pressure value of motor is less than predetermineeing decline lateral pressure value, send unusual suggestion, include: sending out a motor descending side suction empty prompt; when the draining pressure value of motor is greater than preset draining pressure value, send unusual suggestion, include: and sending out a prompt that the oil drainage pressure of the motor exceeds the standard.
Specifically, when the working state of the motor is determined to be abnormal by detecting the pressure value on the descending side of the motor, the working state at this time can be determined to be abnormal suction. Namely, when the pressure value of the descending side of the motor is less than 8bar, the descending side of the motor can be determined to suck, the hoisting mechanism is controlled to stop working and send an abnormal prompt in order to ensure the working safety of the hoisting mechanism, and the abnormal prompt of the descending side of the motor to suck is directly sent out because the abnormal condition is suction, so that the maintenance efficiency of maintenance personnel is improved.
Similarly, when the working state of the motor is determined to be abnormal by detecting the oil drainage pressure value of the motor, the working state of the motor at the moment can be determined to be abnormal and exceed the standard. Namely, when the oil drainage pressure value of the motor is greater than 3bar, the oil drainage pressure of the motor can be determined to exceed the standard, and the volumetric efficiency of the motor is reduced. At the moment, in order to ensure the working safety of the hoisting mechanism, the operation of the hoisting mechanism needs to be controlled and stopped, and meanwhile, an abnormity prompt is sent, and because the abnormity exceeds the standard, the abnormity prompt that the oil drainage pressure of the motor exceeds the standard is directly sent, so that maintenance personnel can quickly know the reason of the abnormity and timely finish abnormal maintenance treatment.
The mode of sending the exception prompt can be a mode of prompting through a pop-up window, and the exception reason is directly displayed through the pop-up window, so that related personnel can clearly check the current exception state and reason. The abnormal condition can also be directly displayed on other display interfaces, as long as related personnel can clearly and timely check the current abnormal condition and the abnormal reason.
Further, on the basis of the above embodiment, as shown in fig. 2, after determining that the working state of the motor is abnormal, the method in this embodiment further includes: recording the abnormal times of the motor; and when the abnormal times are more than the preset times, sending out a motor replacement prompt.
Specifically, when the working state of the motor is determined to be abnormal by detecting the pressure value of the descending side of the motor and the oil drainage pressure value of the motor, the abnormal times and time of the motor can be recorded, the time refers to the moment when the motor is abnormal, the abnormal times of the motor are recorded, and the abnormal times of the descending side suction emptying of the motor and the abnormal times of the oil drainage pressure exceeding of the motor can be respectively recorded. When the abnormal times are more than the preset times, the motor is indicated to possibly have serious faults at the moment, a motor replacement prompt is sent, the replacement of the motor is completed in time, and the working safety of the hoisting mechanism is ensured.
The method comprises the steps of recording the times of suction-emptying abnormality of the descending side of the motor and oil drainage pressure exceeding abnormality of the motor respectively, and sending a motor replacement prompt when the abnormal times of any one of the suction-emptying abnormality and the oil drainage pressure exceeding abnormality of the motor are greater than preset times, so that the abnormal state of the motor can be detected more timely, and the absolute safety of the work of a hoisting mechanism is ensured.
The mode of sending the motor replacement prompt may be a mode of sending the motor replacement prompt to a handheld intelligent terminal of an operator, such as a mobile phone, in a short message manner. The motor can be replaced by displaying in a central control display screen of the crane, an operator can be prompted by a fault lamp, and the motor needs to be replaced in the current state. It is sufficient that the prompt to the operator can be effectively completed so that the operator can complete the replacement of the motor in time.
Further, on the basis of the above embodiment, as shown in fig. 2, the operating parameters of the driving assembly in this embodiment include: a servo pressure value of the deceleration brake; correspondingly, the working state of the driving component is determined based on the working parameters, and the working state comprises the following steps: and when the servo pressure value of the deceleration brake is smaller than the preset servo pressure value, determining that the deceleration brake is abnormal.
Specifically, the driving assembly of the hoisting mechanism further comprises a speed reducer brake, and the speed reducer brake plays a role in braking, so that the hoisting mechanism is ensured to be safely lifted. The main function of detecting the servo pressure value of the speed reducing brake is to ensure that the speed reducing brake is always in a normal working state, and after the servo pressure value of the speed reducing brake is detected, the detected servo pressure value is compared with a preset servo pressure value. If the detected servo pressure value of the speed reducing brake is smaller than the preset pressure value, the fact that the speed reducing brake has fault hidden danger is shown, at the moment, the work of the hoisting mechanism is immediately stopped, an alarm prompt is sent, and an operator is prompted to carry out fault detection and maintenance so as to guarantee the absolute work safety of the hoisting mechanism. For example, the preset pressure value can be 18bar, and the servo pressure is ensured to be greater than 18bar, so that the speed reducer brake can be effectively prevented from being abraded, and risks caused by damage of the speed reducer brake are avoided.
Further, on the basis of the above embodiment, as shown in fig. 2, the operating parameters of the driving assembly in this embodiment include: the hydraulic oil temperature of the main pump hydraulic system; correspondingly, the working state of the driving component is determined based on the working parameters, and the working state comprises the following steps: and when the hydraulic oil temperature of the main pump hydraulic system is lower than or equal to the preset hydraulic oil temperature, determining that the main pump hydraulic system is abnormal.
Specifically, the temperature of the hydraulic oil of the main pump hydraulic system is detected, the viscosity of the hydraulic oil is high in a low-temperature environment, the locking of the brake and the hydraulic system is delayed greatly, and the hook slipping of the winding mechanism or the damage of the motor can be caused. Therefore, after the crane is powered on, the hydraulic oil temperature corresponding to the hydraulic system of the main pump is detected, and whether the operation of heating the hydraulic oil is performed is determined according to the current hydraulic oil temperature. The relationship between the temperature of the hydraulic oil and the preset oil temperature needs to be compared, and when the temperature of the hydraulic oil is less than or equal to minus 25 ℃, the low-temperature environment results in lower temperature of the hydraulic oil, and the hydraulic oil at the moment cannot meet the working requirement of the hoisting mechanism easily. Therefore, the hydraulic oil needs to be heated, and before the heating, the abnormality of the hydraulic system of the main pump is determined, and after the abnormality of the hydraulic system is determined, the operation of the hoisting mechanism is stopped.
Further, on the basis of the above embodiment, as shown in fig. 2, after determining that the main pump hydraulic system is abnormal, the present embodiment further includes: starting an engine for preheating, and increasing the temperature of hydraulic oil; and when the hydraulic oil temperature is higher than the preset hydraulic oil temperature, the auxiliary pump is used for loading overflow to heat the hydraulic oil temperature until the hydraulic oil temperature reaches the preset safe temperature.
Specifically, when the temperature of the hydraulic oil is detected to be lower than or equal to-25 ℃, it is indicated that the hydraulic oil needs to be heated. Can be through starting engine oil feed preheating, promote the hydraulic oil temperature, preheat modes such as including electrical heating, after the hydraulic oil temperature is greater than-25 ℃, alright carry out a key heating this moment, press a key heating button, control auxiliary pump loading overflow, control current value is at 300-500mA, heating power P = pressure differential flow =30MPa 85L/min =42.5kW, motor flushing oil at this moment heaies up, after the oil temperature risees to predetermineeing safe temperature, automatic end heating, prevent to heat excessively. And the mode of one-key heating can realize hydraulic oil temperature rise control fast, improves the work efficiency of hoist mechanism effectively.
For example, the temperature range of the auxiliary pump for loading and overflowing is controlled to be-25-3 ℃, the preset safety temperature can be 3 ℃, namely when the hydraulic oil temperature is-25-3 ℃, the auxiliary pump is controlled to load and overflow, the hydraulic oil temperature is increased, when the hydraulic oil temperature is increased, the current of the main pump is limited in an equal proportion, the phenomenon that the motor is sucked empty due to low-temperature high-speed operation is prevented from being increased, and meanwhile, all actions of the hoisting mechanism are limited in the heating process. When the temperature of the hydraulic oil rises to a preset safe temperature, for example, 3 ℃, heating is stopped, which indicates that the temperature of the hydraulic oil reaches the working temperature, and in the mechanical working process of the hoisting mechanism, the temperature of the hydraulic oil is kept above the preset safe temperature due to the heat generated by the engine, so that the normal temperature of the hydraulic oil is ensured.
Further, on the basis of the above embodiment, as shown in fig. 2, after the hydraulic oil temperature reaches the preset safe temperature in this embodiment, the method further includes: and when detecting that the hoisting mechanism acts for the first time, sending a safety operation prompt.
Specifically, after the hydraulic oil temperature is heated to the preset safe temperature by a one-key heating mode, whether the hoisting mechanism acts for the first time or not is detected, if the hoisting mechanism acts for the first time is detected, a safe operation prompt is sent, and for example, the prompt contents can be as follows: the hydraulic oil temperature is low, and the winch is recommended to run for 2 minutes in an idle mode. The temperature of pipelines such as a winch motor brake is increased through the safety operation prompt, and the temperature of the winch mechanism in working is ensured to be in a normal working state, so that the working safety of the winch mechanism is better ensured.
Based on the same general inventive concept, the invention also protects a hoisting mechanism safety protection device, which is described below, and the hoisting mechanism safety protection device described below and the hoisting mechanism safety protection method described above can be referred to correspondingly.
Fig. 3 is a schematic structural diagram of a safety protection device of a hoisting mechanism provided by the invention.
As shown in fig. 3, a hoisting mechanism safety protection device provided in an embodiment of the present invention includes:
the detection module 301 is used for detecting the working parameters of the driving component of the hoisting mechanism;
a determining module 302, configured to determine an operating state of the driving component based on the operating parameter;
and the control module 303 is configured to control the hoisting mechanism to stop working and send an abnormal prompt if the working state is abnormal.
According to the safety protection device for the hoisting mechanism, the working state of the driving assembly of the hoisting mechanism is determined by detecting the working parameters of the driving assembly and based on the working parameters; if the working state is abnormal, the hoisting mechanism is controlled to stop working and an abnormal prompt is sent out.
Further, the operating parameters of the driving assembly in this embodiment include: the pressure value of the descending side of the motor and the oil drainage pressure value of the motor;
correspondingly, the determining module 302 is specifically configured to:
and when the descending side pressure value of the motor is smaller than a preset descending side pressure value and/or the oil drainage pressure value of the motor is larger than a preset oil drainage pressure value, determining that the working state of the motor is abnormal.
Further, in this embodiment, when the descending-side pressure value of the motor is smaller than a preset descending-side pressure value, and/or when the oil drainage pressure value of the motor is larger than a preset oil drainage pressure value, the control module 303 is specifically configured to:
determining an abnormal position of the motor;
and sending an exception prompt containing the exception position.
Further, in this embodiment, the apparatus further includes a statistics module, configured to:
recording the abnormal times of the motor;
and when the abnormal times are more than the preset times, sending out a motor replacement prompt.
Further, the operating parameters of the driving assembly in this embodiment include: a servo pressure value of the deceleration brake;
correspondingly, the control module 303 is specifically configured to:
and when the servo pressure value of the deceleration brake is smaller than a preset servo pressure value, determining that the deceleration brake is abnormal.
Further, the operating parameters of the driving assembly in this embodiment include: the hydraulic oil temperature of the main pump hydraulic system;
correspondingly, the control module 303 is specifically configured to:
and when the hydraulic oil temperature of the main pump hydraulic system is lower than or equal to the preset hydraulic oil temperature, determining that the main pump hydraulic system is abnormal.
Further, in this embodiment, the present invention further includes a heating module, configured to:
starting an engine for preheating, and increasing the temperature of the hydraulic oil;
and when the hydraulic oil temperature is higher than the preset hydraulic oil temperature, loading overflow through an auxiliary pump to heat the hydraulic oil temperature until the hydraulic oil temperature reaches the preset safe temperature.
Further, the heating module in this embodiment is further configured to:
and when detecting that the hoisting mechanism acts for the first time, sending a safety operation prompt.
Based on the same general inventive concept, the invention also protects a working machine, which is used for executing the winding mechanism safety protection method of any one of the above embodiments, and the working machine comprises a crane and the like.
Fig. 4 is a schematic structural diagram of an electronic device provided in the present invention.
As shown in fig. 4, the electronic device may include: a processor (processor) 410, a communication Interface 420, a memory (memory) 430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may call logic instructions in the memory 430 to perform a hoisting mechanism security method comprising: detecting working parameters of a driving assembly of the hoisting mechanism; determining an operating state of the drive assembly based on the operating parameter; and if the working state is abnormal, controlling the hoisting mechanism to stop working and giving an abnormal prompt.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
In another aspect, the present invention further provides a computer program product, the computer program product includes a computer program, the computer program can be stored on a non-transitory computer readable storage medium, when the computer program is executed by a processor, a computer can execute the hoisting mechanism safety protection method provided by the above methods, and the method includes: detecting working parameters of a driving assembly of the hoisting mechanism; determining an operating state of the drive assembly based on the operating parameter; and if the working state is abnormal, controlling the hoisting mechanism to stop working and giving an abnormal prompt.
In another aspect, the present invention also provides a non-transitory computer readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to execute the method for securing the hoisting mechanism provided by the above methods, the method including: detecting working parameters of a driving component of the hoisting mechanism; determining an operating state of the drive assembly based on the operating parameter; and if the working state is abnormal, controlling the hoisting mechanism to stop working and giving an abnormal prompt.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A safety protection method for a hoisting mechanism is characterized by comprising the following steps:
detecting working parameters of a driving assembly of the hoisting mechanism;
determining an operating state of the drive assembly based on the operating parameter;
and if the working state is abnormal, controlling the hoisting mechanism to stop working and giving an abnormal prompt.
2. The hoisting mechanism safety protection method according to claim 1, wherein the operating parameters of the driving assembly comprise: a descending side pressure value of the motor and an oil drainage pressure value of the motor;
correspondingly, the determining the working state of the driving component based on the working parameter comprises:
and when the descending side pressure value of the motor is smaller than a preset descending side pressure value and/or the oil drainage pressure value of the motor is larger than a preset oil drainage pressure value, determining that the working state of the motor is abnormal.
3. The hoisting mechanism safety protection method according to claim 2, wherein when the descending side pressure value of the motor is smaller than a preset descending side pressure value, and/or when the oil drainage pressure value of the motor is larger than a preset oil drainage pressure value, the sending of the abnormal prompt comprises:
determining an abnormal position of the motor;
and sending an exception prompt containing the exception position.
4. The hoisting mechanism safety protection method according to claim 2, wherein after determining that the working state of the motor is abnormal, the method further comprises:
recording the abnormal times of the motor;
and when the abnormal times are more than the preset times, sending out a motor replacement prompt.
5. The hoisting mechanism safety protection method according to any one of claims 1 to 4, wherein the operating parameters of the driving assembly comprise: a servo pressure value of the deceleration brake;
correspondingly, determining the working state of the driving component based on the working parameter comprises the following steps:
and when the servo pressure value of the deceleration brake is smaller than a preset servo pressure value, determining that the deceleration brake is abnormal.
6. The hoisting mechanism safety protection method according to any one of claims 1 to 4, wherein the operating parameters of the driving assembly comprise: the hydraulic oil temperature of the main pump hydraulic system;
correspondingly, determining the working state of the driving component based on the working parameter comprises the following steps:
and when the hydraulic oil temperature of the main pump hydraulic system is lower than or equal to the preset hydraulic oil temperature, determining that the main pump hydraulic system is abnormal.
7. The hoisting mechanism safety protection method according to claim 6, wherein after determining that the main pump hydraulic system is abnormal, the method further comprises the following steps:
starting an engine for preheating, and increasing the temperature of the hydraulic oil;
and when the hydraulic oil temperature is higher than the preset hydraulic oil temperature, loading overflow through an auxiliary pump to heat the hydraulic oil temperature until the hydraulic oil temperature reaches the preset safe temperature.
8. The hoisting mechanism safety protection method according to claim 7, wherein after the hydraulic oil temperature reaches a preset safety temperature, the method further comprises:
and when detecting that the hoisting mechanism acts for the first time, sending a safety operation prompt.
9. The utility model provides a hoist mechanism safety arrangement which characterized in that includes:
the detection module is used for detecting the working parameters of the driving component of the hoisting mechanism;
the determining module is used for determining the working state of the driving component based on the working parameters;
and the control module is used for controlling the hoisting mechanism to stop working and sending an abnormal prompt if the working state is abnormal.
10. A working machine, characterized in that the working machine is adapted to perform the hoisting mechanism safety protection method according to any one of claims 1 to 8.
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| CN202210981376.XA CN115448166A (en) | 2022-08-16 | 2022-08-16 | Safety protection method and device for hoisting mechanism and operation machine |
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| CN202210981376.XA CN115448166A (en) | 2022-08-16 | 2022-08-16 | Safety protection method and device for hoisting mechanism and operation machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117806220A (en) * | 2024-03-01 | 2024-04-02 | 连云港市新达电子技术有限公司 | Intelligent control system for power supply of petroleum logging instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117806220A (en) * | 2024-03-01 | 2024-04-02 | 连云港市新达电子技术有限公司 | Intelligent control system for power supply of petroleum logging instrument |
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