Detection and alarm method and system applied to brake of crane hoisting mechanism

By designing a detection and alarm method and system for driving lifting mechanism brakes, using signal data to detect faults in real time and issue sound and light alarms, the problems of vulnerability to traditional mechanical switches and lack of real-time detection are solved, and more accurate and timely fault handling is achieved.

CN119976662APending Publication Date: 2025-05-13WUKUN STEEL
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510027439.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

The existing driving lifting mechanism brake detection uses traditional mechanical switches, which has a short life and is prone to damage, and lacks real-time detection and alarm procedures, resulting in untimely fault detection and impacting production safety.

Method used

Design a detection alarm method and system, by generating and obtaining signal data related to the driving lifting mechanism brake, detecting the fault type in real time, and generating prompt data based on the fault type, and driving the buzzer to issue sound and light alarm information.

Benefits of technology

It realizes timely fault detection and alarm of the brakes of the driving lifting mechanism, improves the accuracy and timeliness of the equipment's real-time working status, and reduces equipment damage and production impacts.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119976662A_ABST
    Figure CN119976662A_ABST
Patent Text Reader

Abstract

The invention discloses a detection alarm method and system applied to a brake of a crane hoisting mechanism. The detection alarm method comprises the following steps: respectively generating and acquiring at least one piece of first signal data corresponding to the brake of the crane hoisting mechanism and at least one piece of second signal data corresponding to a main hoisting screen in an electrical beam; based on the first signal data or the second signal data, detecting and judging the fault type of the brake of the crane hoisting mechanism in real time; according to the fault type, first prompt data corresponding to the brake of the crane hoisting mechanism is generated; wherein the first prompt data is used for driving a buzzer to send out sound-light alarm information, and the corresponding system is used for timely and accurately detecting and sending out an alarm signal when a brake of a crane hoisting mechanism is not timely and accurately opened or closed or a brake contactor breaks down. And a driver is reminded to timely inform a maintenance unit to process faults, so that equipment damage or influence on production is prevented.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of crane hoisting mechanism brake detection and processing, and in particular relates to a detection and alarm method and system applied to the crane hoisting mechanism brake. Background Art

[0002] At present, during the production process, the brake of the crane lifting mechanism will have a certain impact on the production. If the fault is not discovered in time, the equipment itself will be seriously damaged, causing the lifting mechanism brake to fail, the ladle to fall, or even the molten steel to spill, causing injuries to ground equipment and personnel.

[0003] That is to say, the defects of the crane lifting mechanism brake in the current production process are: the original design of the lifting mechanism brake detection uses a traditional mechanical switch, which has a short life, is easy to be damaged and stuck, and has a high damage rate and false alarm rate; the original lifting mechanism brake detection and alarm program is almost non-existent, there is no HMI alarm flashing screen and sound and light alarm system, the real-time working status of the brake is inaccurate, and the opening or closing asynchronous rate of a single or multiple brakes is high.

[0004] Therefore, in view of the technical problems and defects of the above original design of lifting mechanism brake detection using traditional mechanical switches, which have a short lifespan, are easy to be damaged and stuck, and have high damage rate and false alarm rate; the original lifting mechanism brake detection and alarm program has almost no HMI alarm flashing screen and sound and light alarm system, the real-time working status of the brake is inaccurate, and the opening or closing asynchronous rate of a single or multiple brakes is high. It is urgent to design and develop a detection alarm method and system for the crane lifting mechanism brake. Summary of the invention

[0005] In order to overcome the above-mentioned deficiencies and difficulties in the prior art, the purpose of the present invention is to provide a detection alarm method, system, platform and device for the brake of a crane hoisting mechanism, so as to realize automatic operation without human intervention in the sampling process.

[0006] The first object of the present invention is to provide a detection and alarm method for a crane hoisting mechanism brake; the second object of the present invention is to provide a detection and alarm system for a crane hoisting mechanism brake.

[0007] The first object of the present invention is achieved in that the method comprises the following steps: Generate and obtain at least one first signal data corresponding to the brake of the crane hoisting mechanism and at least one second signal data corresponding to the main hoisting screen in the electrical beam respectively; Based on the first signal data or the second signal data, real-time detection and determination of the fault type of the crane hoisting mechanism brake; According to the fault type, first prompt data corresponding to the brake of the crane hoisting mechanism is generated respectively; wherein, the first prompt data is to drive the buzzer to emit sound and light alarm information.

[0008] The second object of the present invention is achieved in this way: the system is applied to the detection and alarm method applied to the brake of the crane hoisting mechanism, and the system comprises: A first data generating unit, used to generate and obtain at least one first signal data corresponding to the brake of the crane hoisting mechanism, and at least one second signal data corresponding to the main hoisting screen in the electrical beam; A data detection and determination unit, used for detecting and determining the type of fault existing in the brake of the crane hoisting mechanism in real time based on the first signal data or the second signal data; The second data generating unit is used to generate first prompt data corresponding to the brake of the crane hoisting mechanism according to the fault type; wherein the first prompt data is to drive the buzzer to emit sound and light alarm information.

[0009] The present invention generates and obtains at least one first signal data corresponding to the crane lifting mechanism brake and at least one second signal data corresponding to the main lifting screen in the electrical beam through a method; based on the first signal data or the second signal data, the fault type of the crane lifting mechanism brake is detected and determined in real time; according to the fault type, first prompt data corresponding to the crane lifting mechanism brake is generated respectively; wherein, the first prompt data is to drive the buzzer to emit sound and light alarm information, and the system corresponding to the method can timely and accurately detect and send out an alarm signal to solve the problem that the crane lifting mechanism brake fails to open or close in time and accurately or the brake contactor fails, so as to remind the driving driver to promptly notify the maintenance unit to deal with the fault and prevent equipment damage or production impact.

[0010] That is to say, through the crane hoisting mechanism brake detection and alarm device and PLC program provided by the scheme of the present invention, during the operation of the hoisting mechanism, the response to the brake detection signal, the execution of the detection program, the alarm program, the HMI alarm flashing screen display, and the continuous alarm of the sound and light alarm can all promptly remind the crane driver of the failure of the hoisting mechanism brake. This has advantages in terms of the accuracy and timeliness of the real-time working status of the brake, as well as the wear on the crane mechanical equipment, thereby greatly improving the stable operation efficiency and production efficiency of the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 A schematic flow chart of the steps of a detection and alarm method for a crane hoisting mechanism brake according to the present invention; Figure 2 A schematic diagram of the working principle of a detection and alarm method for a crane hoisting mechanism brake invented by the present invention; Figure 3 The second schematic diagram of the working principle of the present invention is a detection alarm method for a crane hoisting mechanism brake; Figure 4 A schematic diagram of a program control for a detection and alarm method for a crane hoisting mechanism brake invented by the present invention; Figure 5 The second schematic diagram of the program control of the present invention is a detection and alarm method for the brake of the crane hoisting mechanism; Figure 6 The present invention is a program control diagram of a detection and alarm method for a crane hoisting mechanism brake; Figure 7 Four schematic diagrams of program control for a detection and alarm method for a crane hoisting mechanism brake invented by the present invention; Figure 8 The present invention is a program control schematic diagram of a detection and alarm method for a crane hoisting mechanism brake; Fig. 9 The present invention is a program control schematic diagram of a detection alarm method for a crane hoisting mechanism brake; Fig.10 The present invention is a program control schematic diagram of a detection and alarm method for a crane hoisting mechanism brake; Fig.11 The present invention is a program control schematic diagram of a detection and alarm method for a crane hoisting mechanism brake; Fig.12 The present invention is a program control schematic diagram of a detection alarm method for a crane hoisting mechanism brake; Fig.13 A schematic diagram of a program control for a detection and alarm method for a crane hoisting mechanism brake invented by the present invention; Fig.14A schematic diagram of a program control method for detecting and alarming a brake of a crane hoisting mechanism according to the present invention; Fig.15 A schematic diagram of a touch screen display of a detection and alarm method for a crane hoisting mechanism brake invented by the present invention; Fig.16 The present invention is a touch screen screen display two schematic diagrams of a detection alarm method for a crane hoisting mechanism brake; Fig.17 The present invention is a schematic diagram of the architecture of a detection and alarm system for a crane hoisting mechanism brake. DETAILED DESCRIPTION

[0013] In order to better understand the purpose, technical solutions and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0014] The present invention may also be implemented or applied through other different specific examples, and the details in this specification may also be modified and changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0015] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0016] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. Secondly, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings. Figure 1 As shown, the present invention provides a detection and alarm method for a crane hoisting mechanism brake, the method comprising the following steps: S01, respectively generating and acquiring at least one first signal data corresponding to the brake of the crane hoisting mechanism and at least one second signal data corresponding to the main hoisting screen in the electrical beam; S02, based on the first signal data or the second signal data, real-time detection and determination of the fault type of the crane hoisting mechanism brake; S03. Generate first prompt data corresponding to the brake of the crane hoisting mechanism according to the fault type; wherein the first prompt data is to drive a buzzer to emit sound and light alarm information.

[0018] The method of respectively generating and acquiring at least one first signal data corresponding to the brake of the crane hoisting mechanism and at least one second signal data corresponding to the main hoisting screen in the electrical beam further includes: S011, generating and acquiring at least one first data corresponding to the brake of the crane hoisting mechanism; wherein the first data is the operating state data of the brake of the crane hoisting mechanism, including the state data of the brake not being opened or closed in a timely and accurate manner; S012. Based on the first data, generate first signal data corresponding to the first data, and send the first signal data in real time.

[0019] The method of respectively generating and acquiring at least one first signal data corresponding to the brake of the crane hoisting mechanism and at least one second signal data corresponding to the main hoisting screen in the electrical beam further includes: S013. Based on the first data, generate and obtain first control data corresponding to the first data; and according to the first control data, control the action state of the proximity switch in real time.

[0020] The method of respectively generating and acquiring at least one first signal data corresponding to the brake of the crane hoisting mechanism and at least one second signal data corresponding to the main hoisting screen in the electrical beam further includes: S014, generating and acquiring at least one second data corresponding to the main lifting screen in the electrical beam; wherein the first data is data when one or more of the brake contactors fail to close or disconnect due to a fault; S015. Based on the second data, generate second signal data corresponding to the second data, and send the second signal data in real time.

[0021] The generating of first prompt data corresponding to the brake of the crane hoisting mechanism according to the fault type also includes: S031, generating and acquiring at least one first activation signal data corresponding to the touch screen; wherein the first activation signal data is signal data generated when the touch screen is touched; S032. Generate at least one second control data corresponding to the first prompt data according to the first activation signal data; S033. Based on the second control data, generate second prompt data corresponding to the fault type; wherein the second prompt data is data for remotely notifying maintenance personnel to board the vehicle for fault inspection.

[0022] The generating of first prompt data corresponding to the brake of the crane hoisting mechanism according to the fault type also includes: S034, generating and acquiring at least one second activation signal data corresponding to the touch screen; wherein the second activation signal data is signal data generated when the touch screen is touched; S035. Generate at least one third control data corresponding to the second prompt data according to the second activation signal data; S036. Generate third prompt data corresponding to the fault type based on the third control data; wherein the third prompt data is prompt data indicating that the fault type has been eliminated.

[0023] Specifically, in an embodiment of the present invention, a design for detecting and alarming the brakes of a crane hoisting mechanism is provided. During the operation of the hoisting mechanism, the response to the brake detection signal, the execution of the detection program, the alarm program, the display of the HMI alarm flashing screen, and the continuous alarm of the sound and light alarm can all promptly remind the crane driver of a fault in the hoisting mechanism brake. This has advantages in terms of the accuracy and timeliness of the real-time working status of the brake, as well as in terms of the wear on the crane mechanical equipment, thereby improving the stable operation efficiency and production efficiency of the crane.

[0024] Among them, the solution to the problem of detection hardware: by consulting various limit switch materials, we finally decided to use proximity switches: because they have significant advantages in accuracy, safety and durability; through on-site measurement and testing, we designed and made the proximity switch detection bracket ourselves. Finally, the traditional mechanical switch was replaced with a proximity switch (model Ni15-M30-OSA3L).

[0025] Solution to the alarm hardware problem: When the hoisting mechanism brake fails, whether it can promptly remind the driving driver to take emergency measures and promptly notify the maintenance personnel to go up to the driving to handle it becomes the key. In this regard, after many discussions and on-site inspections, we finally adopted the method of installing an audible and visual alarm on the substation PLC electrical cabinet door in the cab. When the brake fails, the audible and visual alarm will give a double reminder to the driver through sound and light. As for why it is installed on the electrical cabinet door, there are three reasons: ①Easy to wire: the installed audible and visual alarm is closer to the PLC module; ②There is no extra space on the linkage table for installation; ③There are device alarms, fault alarms and other alarms on the linkage table. If they are installed on the linkage table, the driver will misjudge the fault and fail to discover it in time.

[0026] Solution to software problems of detection and alarm: By consulting and studying materials and videos on Siemens S7-1500, Botu V16, HMI, etc., Botu V16 software was used to compile a total of 5 LAD program segments for detection and alarm of the lifting mechanism brake (this program segment includes the detection and alarm of the southeast, southwest, northwest, northeast 4 brakes, K71 K72 working contactors, K73 K74 support contactors and other equipment when failure occurs, and the detection is also divided into brake rise detection and descending detection). This program is easy to understand, and the detection and alarm are comprehensive and accurate. A new lifting mechanism brake detection limit alarm flashing screen is added to the HMI global and lifting mechanism display interfaces (the brake displays green when it is normal, but when a fault occurs, the corresponding brake light changes to flashing red and blue); a new historical fault alarm text query function is added (to facilitate maintenance personnel to find out which brake has failed through this text after getting on the vehicle, so as to deal with it as soon as possible).

[0027] Preferably, the present invention provides a crane hoisting mechanism brake detection and alarm device and PLC program, including proximity switch Ni15-M30-OSA3L, Siemens PLC master station, Siemens PLC substation, Siemens PLC detection and alarm program (self-edited), Siemens touch screen screen alarm and text alarm (self-edited), sound and light alarm AD16-22SM, K71 and K72 working brake contactors, K73 and K74 support brake contactors, and 4 main hoisting brakes on the east, south, west and north sides.

[0028] like Figure 2-Figure 3The working flow diagram shown in the figure has the following working principle: ① When one or more of the four main lifting brakes (northeast, southeast, northwest, southwest) fail to open or close in time and accurately due to a fault in the hydraulic pusher and other equipment, the proximity switch will be activated, and then a signal will be input to the PLC master station; ② When one or more of the four working and supporting brake contactors K71, K72, K73, and K74 in the main lifting screen in the electrical beam fail to close or disconnect, a signal will be input to the PLC master station; ③ When any of ① and ② fails, the digital input module of the PLC master station in the electrical beam will receive a signal, and the detection program and alarm program of the main lifting brake of the master station PLC will be run, and then the running result will be driven by the digital output module of the driver's room substation to drive the buzzer to sound and light alarm, and at the same time trigger the picture and text alarm on the touch screen of the driver's room, so as to promptly notify the operator of the failure of the main lifting brake, take emergency measures, and notify the maintenance personnel to get on the car for fault inspection. After getting on the car, the maintenance personnel can accurately find and eliminate the fault through the text alarm on the touch screen.

[0029] That is to say, the invention provides a method for detecting and alarming the brake of a crane hoisting mechanism, including two parts: hardware and software detection and alarm. The hardware equipment includes proximity switch Ni15-M30-OSA3L, Siemens PLC system, Siemens touch screen, sound and light alarm AD16-22SM, K71 and K72 working brake contactors, K73 and K74 support brake contactors, and four main hoisting brakes in southeast, northeast, southwest, and northwest. The detection and alarm LAD program, touch screen screen alarm, and text alarm are written by Botu software. The K71, K72, K73, and K74 contactors in the electrical beam are connected to the southeast, northeast, southwest, and northwest brakes through cables and control the rise and fall of the brakes. The four proximity switches are used to detect whether the brakes are working normally, and then the signals are given to the PLC master station digital input module through cables. The results are obtained by running the program through the CPU, and then connected to the digital output module of the driver's room substation PLC through the profinet bus. The output module is connected to the buzzer through a cable and to the touch screen through the profinet bus.

[0030] Figure 3 In the flowchart, there are two logical control parts: brake hydraulic push rod rising and falling detection alarm.

[0031] Among them, the brake hydraulic push rod rises: Step 1: When the K71 and K72 main lifting working brake contactors are not closed, the main hook brake buzzer in the driver's cab sounds and sounds an alarm ( Figure 4 Program), otherwise proceed to the next step; Step 2: When the K73 and K74 main lifting support brake contactors are not closed, the main hook brake buzzer in the driver's cab sounds and sounds an alarm ( Figure 5 Program), otherwise proceed to the next step; Step 3: The rising detection timer 1 is delayed for 6 seconds and turned on. The southeast brake hydraulic push rod does not rise to the preset height, causing the normally open point of the proximity switch to not close. The buzzer and the touch screen southeast brake fault screen and text alarm ( Figure 6 Program), otherwise proceed to the next step; Step 4: The hydraulic push rod of the northeast brake does not rise to the predetermined height, causing the normally open point of the proximity switch to not close, and the buzzer and touch screen southeast brake fault screen and text alarm ( Figure 7 Procedure:), otherwise proceed to the next step; Step 5: The hydraulic push rod of the southwest brake does not rise to the predetermined height, causing the normally open point of the proximity switch to not close, and the buzzer and touch screen southeast brake fault screen and text alarm ( Figure 8 Program), otherwise proceed to the next step; Step 6: The northwest brake hydraulic push rod does not rise to the predetermined height, causing the normally open point of the proximity switch to not close, and the buzzer and touch screen southeast brake fault screen and text alarm ( Fig. 9 program), otherwise the program ends.

[0032] Brake hydraulic push rod lowering: Steps 1 and 2 are similar to steps 1 and 2 of the brake hydraulic push rod rising, and will not be repeated here; proceed to the next step; Step 3: The descent detection timer 2 is turned on after a delay of 5 seconds. The southeast brake hydraulic push rod does not descend below the preset height, resulting in the proximity switch not being disconnected. The buzzer and touch screen southeast brake fault screen and text alarm ( Fig.10 Program), otherwise proceed to the next step; Step 4: The hydraulic push rod of the northeast brake does not drop below the preset height, causing the proximity switch to not disconnect. The buzzer and touch screen southeast brake fault screen and text alarm ( Fig.11 Program), otherwise proceed to the next step; Step 5: The southwest brake hydraulic push rod does not drop below the preset height, causing the proximity switch to not disconnect. The buzzer and touch screen southeast brake fault screen and text alarm ( Fig.12 Program), otherwise proceed to the next step; Step 6: The northwest brake hydraulic push rod does not drop below the preset height, causing the proximity switch to not disconnect. The buzzer and touch screen southeast brake fault screen and text alarm ( Fig.13 program), otherwise the program ends.

[0033] When one or more of the southeast, northeast, southwest, and northwest brakes fail, the buzzer and the touch screen screen and text will alarm ( Fig.14 , Fig.15 , Fig.16).

[0034] In other words, the embodiment provides a method for detecting and alarming the brakes of a crane hoisting mechanism, which is implemented by including the following steps: adding a self-compiled brake detection and alarm program segment to the original main hoisting mechanism PLC program; adding a self-compiled HMI brake alarm flashing screen; adding a self-compiled HMI historical fault alarm information; on-site measurement and collection of the height, hole spacing and other dimensions of the brake limit detection bracket, and production thereof; installing a new sound and light alarm on the plc cabinet in the driver's cab; replacing the original mechanical limit with a Ni15-M30-OSA3L proximity switch; using Botu V16 to download a new PLC program and HMI screen on-site, and ensuring the timeliness and accuracy of detection and alarm by adjusting the rising and falling detection delay time.

[0035] To achieve the above object, the present invention also provides a detection alarm system for a crane hoisting mechanism brake, such as Figure 3 As shown, the system is applied to the detection and alarm method for the brake of the crane hoisting mechanism, and the system includes: A first data generating unit, used to generate and obtain at least one first signal data corresponding to the brake of the crane hoisting mechanism, and at least one second signal data corresponding to the main hoisting screen in the electrical beam; A data detection and determination unit, used for detecting and determining the type of fault existing in the brake of the crane hoisting mechanism in real time based on the first signal data or the second signal data; The second data generating unit is used to generate first prompt data corresponding to the brake of the crane hoisting mechanism according to the fault type; wherein the first prompt data is to drive the buzzer to emit sound and light alarm information.

[0036] The first data generating unit further includes: A first generating module is used to generate and obtain at least one first data corresponding to the brake of the traveling crane hoisting mechanism; wherein the first data is the operating state data of the brake of the traveling crane hoisting mechanism, including the state data of the brake not being opened or closed in a timely and accurate manner; a second generating module, configured to generate first signal data corresponding to the first data based on the first data, and send the first signal data in real time; The first control module is used to generate and obtain first control data corresponding to the first data based on the first data; and to control the action state of the proximity switch in real time according to the first control data.

[0037] The first data generating unit further includes: The third generating module is used to generate and obtain at least one second data corresponding to the main lifting screen in the electrical beam; wherein the first data is data when one or more of the brake contactors fail to close or disconnect due to a fault; The fourth generating module is used to generate second signal data corresponding to the second data based on the second data, and send the second signal data in real time.

[0038] The second data generating unit further includes: A fifth generating module, configured to generate and obtain at least one first activation signal data corresponding to the touch screen; wherein the first activation signal data is signal data generated when the touch screen is touched; a sixth generating module, configured to generate at least one second control data corresponding to the first prompt data according to the first activation signal data; A seventh generating module, configured to generate second prompt data corresponding to the fault type based on the second control data; wherein the second prompt data is data for remotely notifying maintenance personnel to board the vehicle for fault inspection; an eighth generating module, configured to generate and obtain at least one second activation signal data corresponding to the touch screen; wherein the second activation signal data is signal data generated when the touch screen is touched; a ninth generating module, configured to generate at least one third control data corresponding to the second prompt data according to the second activation signal data; The tenth generating module is used to generate third prompt data corresponding to the fault type based on the third control data; wherein the third prompt data is prompt data indicating that the fault type has been eliminated.

[0039] In the system solution embodiment of the present invention, the method steps involved in the detection alarm of the crane lifting mechanism brake are described above in detail, that is, the functional modules in the system are used to implement the steps or sub-steps in the above method embodiment, which will not be repeated here.

[0040] The present invention generates and obtains at least one first signal data corresponding to the crane lifting mechanism brake and at least one second signal data corresponding to the main lifting screen in the electrical beam through a method; based on the first signal data or the second signal data, the fault type of the crane lifting mechanism brake is detected and determined in real time; according to the fault type, first prompt data corresponding to the crane lifting mechanism brake is generated respectively; wherein, the first prompt data is to drive the buzzer to emit sound and light alarm information, and the system corresponding to the method can timely and accurately detect and send out an alarm signal to solve the problem that the crane lifting mechanism brake fails to open or close in time and accurately or the brake contactor fails, so as to remind the driving driver to promptly notify the maintenance unit to deal with the fault and prevent equipment damage or production impact.

[0041] That is to say, through the crane hoisting mechanism brake detection and alarm device and PLC program provided by the scheme of the present invention, during the operation of the hoisting mechanism, the response to the brake detection signal, the execution of the detection program, the alarm program, the HMI alarm flashing screen display, and the continuous alarm of the sound and light alarm can all promptly remind the crane driver of the failure of the hoisting mechanism brake. This has advantages in terms of the accuracy and timeliness of the real-time working status of the brake, as well as the wear on the crane mechanical equipment, thereby greatly improving the stable operation efficiency and production efficiency of the crane.

[0042] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A detection and alarm method for a crane hoisting mechanism brake, characterized in that: The method comprises the steps of: Generate and obtain at least one first signal data corresponding to the brake of the crane hoisting mechanism and at least one second signal data corresponding to the main hoisting screen in the electrical beam respectively; Based on the first signal data or the second signal data, real-time detection and determination of the fault type of the crane hoisting mechanism brake; According to the fault type, first prompt data corresponding to the brake of the crane hoisting mechanism is generated respectively; wherein, the first prompt data is to drive the buzzer to emit sound and light alarm information.

2. A detection and alarm method for a crane hoisting mechanism brake according to claim 1, characterized in that: The method of respectively generating and acquiring at least one first signal data corresponding to the brake of the crane hoisting mechanism and at least one second signal data corresponding to the main hoisting screen in the electrical beam further includes: Generate and obtain at least one first data corresponding to the brake of the crane hoisting mechanism; wherein the first data is the operating state data of the brake of the crane hoisting mechanism, including the state data of the brake not being opened or closed in a timely and accurate manner; Based on the first data, first signal data corresponding to the first data is generated, and the first signal data is sent in real time.

3. A detection and alarm method for a crane hoisting mechanism brake according to claim 1 or 2, characterized in that: The method of respectively generating and acquiring at least one first signal data corresponding to the brake of the crane hoisting mechanism and at least one second signal data corresponding to the main hoisting screen in the electrical beam further includes: Based on the first data, first control data corresponding to the first data is generated and acquired; and according to the first control data, the action state of the proximity switch is controlled in real time.

4. A detection and alarm method for a crane hoisting mechanism brake according to claim 1 or 2, characterized in that: The method of respectively generating and acquiring at least one first signal data corresponding to the brake of the crane hoisting mechanism and at least one second signal data corresponding to the main hoisting screen in the electrical beam further includes: Generate and obtain at least one second data corresponding to the main lifting screen in the electrical beam; wherein the first data is data when one or more of the brake contactors fail to close or disconnect due to a fault; Based on the second data, second signal data corresponding to the second data is generated, and the second signal data is sent in real time.

5. The detection and alarm method for the brake of a crane hoisting mechanism according to claim 1 is characterized in that: The method of generating first prompt data corresponding to the brake of the crane hoisting mechanism according to the fault type also includes: Generate and obtain at least one first activation signal data corresponding to the touch screen; wherein the first activation signal data is signal data generated when the touch screen is touched; generating at least one second control data corresponding to the first prompt data according to the first activation signal data; Based on the second control data, second prompt data corresponding to the fault type is generated; wherein the second prompt data is data for remotely notifying maintenance personnel to board the vehicle for fault inspection.

6. A detection and alarm method for a crane hoisting mechanism brake according to claim 1 or 5, characterized in that: The method of generating first prompt data corresponding to the brake of the crane hoisting mechanism according to the fault type also includes: Generate and obtain at least one second activation signal data corresponding to the touch screen; wherein the second activation signal data is signal data generated when the touch screen is touched; generating at least one third control data corresponding to the second prompt data according to the second activation signal data; Based on the third control data, third prompt data corresponding to the fault type is generated; wherein the third prompt data is prompt data indicating that the fault type has been eliminated.

7. A detection and alarm system for the brake of a crane hoisting mechanism, characterized in that: The system is applied to the detection and alarm method for the brake of the crane hoisting mechanism as claimed in any one of claims 1 to 6, and the system comprises: A first data generating unit, used to generate and obtain at least one first signal data corresponding to the brake of the crane hoisting mechanism, and at least one second signal data corresponding to the main hoisting screen in the electrical beam; A data detection and determination unit, used for detecting and determining the type of fault existing in the brake of the crane hoisting mechanism in real time based on the first signal data or the second signal data; The second data generating unit is used to generate first prompt data corresponding to the brake of the crane hoisting mechanism according to the fault type; wherein the first prompt data is to drive the buzzer to emit sound and light alarm information.

8. The detection and alarm system for the brake of a crane hoisting mechanism according to claim 7 is characterized in that: The first data generating unit further includes: A first generating module is used to generate and obtain at least one first data corresponding to the brake of the traveling crane hoisting mechanism; wherein the first data is the operating state data of the brake of the traveling crane hoisting mechanism, including the state data of the brake not being opened or closed in a timely and accurate manner; a second generating module, configured to generate first signal data corresponding to the first data based on the first data, and send the first signal data in real time; The first control module is used to generate and obtain first control data corresponding to the first data based on the first data; and to control the action state of the proximity switch in real time according to the first control data.

9. A detection and alarm system for a crane hoisting mechanism brake according to claim 7 or 8, characterized in that: The first data generating unit further includes: The third generating module is used to generate and obtain at least one second data corresponding to the main lifting screen in the electrical beam; wherein the first data is data when one or more of the brake contactors fail to close or disconnect due to a fault; The fourth generating module is used to generate second signal data corresponding to the second data based on the second data, and send the second signal data in real time.

10. The detection alarm system for the brake of a crane hoisting mechanism according to claim 7, characterized in that: The second data generating unit further includes: A fifth generating module, configured to generate and obtain at least one first activation signal data corresponding to the touch screen; wherein the first activation signal data is signal data generated when the touch screen is touched; a sixth generating module, configured to generate at least one second control data corresponding to the first prompt data according to the first activation signal data; A seventh generating module, configured to generate second prompt data corresponding to the fault type based on the second control data; wherein the second prompt data is data for remotely notifying maintenance personnel to board the vehicle for fault inspection; an eighth generating module, configured to generate and obtain at least one second activation signal data corresponding to the touch screen; wherein the second activation signal data is signal data generated when the touch screen is touched; a ninth generating module, configured to generate at least one third control data corresponding to the second prompt data according to the second activation signal data; The tenth generating module is used to generate third prompt data corresponding to the fault type based on the third control data; wherein the third prompt data is prompt data indicating that the fault type has been eliminated.