Crane equipment detection method and system and machine readable storage medium

Abstract

The invention belongs to the technical field of crane equipment detection, and particularly relates to a crane equipment detection method and system and a machine readable storage medium. Then the winch is controlled to drive the lifting hook to move by a preset distance at the maximum rotating speed, finally, the winch is controlled to stop, and calculation parameters needed for calculating the actual value of the maximum winch speed and the actual value of the reverse rotation amount are obtained in each stage, so that the detection of the maximum winch speed and the reverse rotation amount of the crane can be completed. Therefore, the combination of the detection of the maximum hoisting speed and the detection of the reverse rotation quantity is realized, and the detection steps of crane equipment are simplified.

Description

Technical Field

[0001] This application belongs to the technical field of crane equipment testing, and specifically relates to a crane equipment testing method, system and machine-readable storage medium. Background Technology

[0002] Before a crane is put into use, parameter testing is required. The main parameters include the maximum hoisting speed of the winch and the reversal amount of the winch. Among them, the maximum hoisting speed is the main parameter reflecting the crane's performance, and the reversal amount is the main parameter reflecting the crane's safety. Since the accuracy of the test results is related to the crane's core performance, safety and market competitiveness, it is necessary to maximize the accuracy of the test results.

[0003] In the existing technology, the detection of maximum hoisting speed and the detection of reverse amount are carried out separately. The detection of these two main parameters involves multiple repetitive steps, making the detection process quite cumbersome. Summary of the Invention

[0004] The purpose of this application is to provide a crane equipment inspection method, system, and machine-readable storage medium, which aims to simplify the inspection process.

[0005] To achieve the above objectives, this application provides a method for inspecting crane equipment, comprising: The start time is determined by increasing the engine speed of the winch to the maximum speed and setting the moment when the engine speed reaches the maximum speed. The winch is controlled to drive the hook to move a preset distance at the maximum speed, and the moment when the hook moves to the preset distance is determined as the termination moment. The actual value of the crane's maximum hoisting speed is determined based on the start time, the end time, and the preset distance. Control the winch to stop and obtain the reverse angle of the winch; The actual value of the reversal amount of the winch is determined based on the reversal angle.

[0006] In some embodiments, determining the maximum hoisting speed of the crane based on the start time, the end time, and the preset distance includes: The test time is determined based on the termination time and the start time; Obtain the drum diameter of the winch, the wire rope diameter of the winch, and the number of layers of the wire rope of the winch; Substituting the test time, the preset distance, the drum diameter, the wire rope diameter, and the number of layers where the wire rope is located into the first calculation formula, the actual value of the maximum hoisting speed is obtained; The first calculation formula is:

[0007] Wherein, ω is the maximum hoisting speed; The preset distance is D; the drum diameter is m; the wire rope layer number is m; and the wire rope diameter is d. The test time is specified.

[0008] In some implementations, determining the actual value of the reversal amount of the winch based on the reversal angle includes: Obtain the drum diameter of the winch, the wire rope diameter of the winch, and the number of layers of the wire rope of the winch; The amount of reversal is obtained by substituting the reversal angle, the drum diameter, the wire rope diameter, and the number of layers of the wire rope into the second calculation formula; The second calculation formula is: L=n∏(D+2md) / 180; Wherein, L is the amount of reversal; n is the angle of reversal; π is pi; D is the diameter of the drum; m is the number of layers of the wire rope; and d is the diameter of the wire rope.

[0009] In some embodiments, the crane equipment detection method further includes: obtaining the hydraulic pressure of the hydraulic circuit of the winch; The process of controlling the winch's engine speed to increase to the maximum speed and determining the moment when the engine speed reaches the maximum speed as the start time includes: controlling the hydraulic pressure to increase to the maximum value and determining the moment when the hydraulic pressure reaches the maximum value as the start time; The step of controlling the winch to stop and obtaining the reversal angle of the winch includes: controlling the hydraulic pressure to become zero and obtaining the reversal angle after confirming that the hydraulic pressure is zero.

[0010] In some embodiments, the crane equipment testing method further includes: After the hydraulic pressure of the winch reaches its maximum value, it fluctuates. The moment when the hydraulic pressure of the winch reaches its maximum value again is determined as the starting moment.

[0011] In some embodiments, controlling the winch to stop and obtaining the reverse angle of the winch includes: The reversal angle is obtained after the winch has completed its reversal action.

[0012] A second aspect of this application provides a crane equipment inspection system, comprising: Distance sensors are used to detect the distance between the crane hook and the ground; A rotary encoder is used to detect the rotation angle of the winch; The processor is capable of communicating with the winch, the ranging sensor, and the rotary encoder, and is configured as follows: The engine speed of the winch is increased to the maximum speed, and the moment when the engine speed reaches the maximum speed is determined as the start time; The winch is controlled to drive the hook to move a preset distance at the maximum speed, and the moment when the hook moves to the preset distance is determined as the termination moment; The actual value of the maximum hoisting speed is determined based on the start time, the end time, and the preset distance. Control the winch to stop and determine the reverse angle of the winch; The actual value of the reversal amount of the winch is determined based on the reversal angle.

[0013] In some embodiments, the crane equipment detection system further includes a hydraulic sensor for detecting the hydraulic pressure of the winch, and the processor is communicatively connected to and configured to: Obtain the hydraulic pressure of the hydraulic circuit of the winch; The start time is determined as the moment when the hydraulic pressure reaches its maximum value. After confirming that the hydraulic pressure is zero, the reversal angle is obtained.

[0014] In some embodiments, the processor is further configured to: After the hydraulic pressure of the winch reaches its maximum value, it fluctuates. The moment when the hydraulic pressure of the winch reaches its maximum value again is determined as the starting moment.

[0015] In some embodiments, the crane equipment detection system further includes a controller for inputting standard values ​​for the maximum hoisting speed and the reverse rotation amount, and the processor is communicatively connected to and configured to: Once it is determined that the actual value of the maximum hoisting speed meets the standard value, a speed compliance signal is sent to the controller; Once the actual value of the reversal amount is determined to meet the standard value, a reversal amount qualified signal is sent to the controller.

[0016] In some embodiments, the crane equipment detection system further includes a vision detector for acquiring the reversing motion of the winch, and the processor is communicatively connected to and configured to: The reversal angle is obtained after the winch has completed its reversal action.

[0017] A third aspect of this application provides a machine-readable storage medium storing instructions that cause a machine to perform the crane equipment detection method described above.

[0018] Through the above technical solutions, the crane equipment testing method, system, and machine-readable storage medium provided in this application have the following beneficial effects: Throughout the testing process, the winch engine speed is first increased to its maximum speed, then the winch is driven to move the hook a preset distance at its maximum speed, and finally the winch is stopped. At each stage, the calculation parameters required to calculate the actual values ​​of the maximum winch speed and the actual values ​​of the reverse rotation are obtained to complete the testing of the crane's maximum winch speed and reverse rotation, thereby merging the testing of the maximum winch speed and the reverse rotation and simplifying the crane equipment testing steps.

[0019] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a flowchart of a crane equipment testing method according to a specific embodiment of this application; Figure 2 This is a schematic diagram of a crane device according to a specific embodiment of this application; Figure 3 for Figure 2 Enlarged view of section A.

[0021] Explanation of reference numerals in the attached figures 1. Winch; 2. Hook; 3. Rotary encoder; 4. Vision detector; 5. Mounting bracket. Detailed Implementation

[0022] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0023] The terminology of the crane equipment testing method, system, and machine-readable storage medium according to this application is described below with reference to the accompanying drawings.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the embodiments of this application and are not intended to limit the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0027] like Figure 1 As shown, a specific embodiment of this application provides a crane equipment testing method, including: Step S1: Control the engine speed of winch 1 to increase to the maximum speed and determine the moment when the engine speed reaches the maximum speed as the starting moment; Step S2: Control the winch 1 to drive the hook 2 to move at the maximum speed to a preset distance and determine the time when the hook 2 moves to the preset distance as the termination time; Step S3: Determine the actual value of the crane's maximum hoisting speed based on the start time, end time, and preset distance; Step S4: Control the winch 1 to stop and obtain the reversal angle of the winch 1; Step S5: Determine the actual value of the reverse amount of winch 1 based on the reverse angle.

[0028] Maximum hoisting speed refers to the lifting speed of hook 2 when the engine speed of hoist 1 of the crane equipment is at its maximum. Detecting maximum hoisting speed is a crucial performance parameter for crane equipment. Reverse displacement refers to the unexpected reverse displacement after hoist 1 is shut down when its engine speed is at its maximum. Detecting reverse displacement is a crucial safety parameter for crane equipment. The results of maximum hoisting speed and reverse displacement tests are related to the core performance, safety, and market competitiveness of the product, and are mandatory items in the product testing phase. In a specific embodiment of this application, the detection process for maximum hoisting speed and reverse displacement is combined into a unified detection process, eliminating the need for separate detections of maximum hoisting speed and reverse displacement, thereby simplifying the testing steps in the product testing phase.

[0029] Specifically, the working state of the winch 1 is changed throughout the detection process through steps S1, S2 and S4. At the same time, the calculation parameters required to calculate the actual value of the maximum winch speed and the actual value of the reversal amount are obtained, such as the start time, end time and reversal angle. Finally, the actual value of the maximum winch speed and the actual value of the reversal amount are calculated and determined through steps S3 and S5.

[0030] It should be noted that the execution order of steps S3 and S4 can be interchanged or performed simultaneously. That is, determining the actual value of the maximum hoisting speed of the crane based on the start time, end time, and preset distance, and controlling the hoist 1 to stop and obtaining the reversal angle after the hoist 1 stops, does not necessarily require restricting the execution order.

[0031] Since the distance that the hook 2 needs to lift at maximum hoisting speed needs to meet the inspection standard requirements, the preset distance in step S2 needs to exceed the inspection standard requirements in order to avoid failing to meet the inspection standard requirements and needing to be inspected again.

[0032] In some implementations, step S3 includes: Step S31: Determine the test time based on the termination time and the start time; Step S32: Obtain the drum diameter of winch 1, the wire rope diameter of winch 1, and the layer number of the wire rope of winch 1; Step S33: Substitute the test time, preset distance, drum diameter, wire rope diameter, and the number of layers where the wire rope is located into the first calculation formula to obtain the actual value of the maximum hoisting speed; The first calculation formula is:

[0033] Wherein, ω is the maximum hoisting speed; The preset distance is D; the drum diameter is m; the wire rope layer number is m; and the wire rope diameter is d. The test time is specified.

[0034] In some implementations, step S5 includes: Step S51: Obtain the drum diameter of winch 1, the wire rope diameter of winch 1, and the layer number of the wire rope of winch 1. Step S52: Substitute the reversal angle, drum diameter, wire rope diameter, and the number of layers the wire rope is in into the second calculation formula to obtain the reversal amount; The second calculation formula is: L=n∏(D+2md) / 180; Where L is the amount of reversal; n is the reversal angle; π is pi; D is the drum diameter; m is the number of layers of the wire rope; and d is the wire rope diameter.

[0035] In some embodiments, the crane equipment testing method further includes obtaining the hydraulic pressure of the hydraulic circuit of the winch 1; Step S1 includes: controlling the hydraulic pressure to increase to the maximum value and determining the moment when the hydraulic pressure reaches the maximum value as the starting moment; Step S4 includes: controlling the hydraulic pressure to become zero and obtaining the reversal angle after confirming that the hydraulic pressure is zero.

[0036] The winch 1 of the crane equipment can be controlled through the hydraulic circuit. In other words, the hydraulic pressure of the hydraulic circuit can directly reflect whether the engine speed of the winch 1 has reached the maximum speed and whether the winch 1 has been shut down. The hydraulic pressure can be directly controlled and monitored, thereby ensuring the accuracy of the test results.

[0037] In some embodiments, the crane equipment inspection method further includes: After the hydraulic pressure of winch 1 reaches its maximum value, it fluctuates. The moment when the hydraulic pressure of winch 1 reaches its maximum value again is determined as the starting moment.

[0038] During the process of controlling the winch 1 to drive the hook 2 to move to the preset distance at the maximum speed, the engine speed may fluctuate due to the operator's operation error or hydraulic circuit failure. This will be reflected in the change of hydraulic pressure. Therefore, it is necessary to wait until the engine speed returns to the maximum speed, that is, until the hydraulic pressure returns to the maximum value, before re-detecting the maximum winch speed, that is, to re-acquire the starting time.

[0039] In some implementations, step S4 includes: The reversal angle is obtained only after the winch 1 has completed its reversal action.

[0040] In other words, the reversal angle is obtained only after it is determined that the winch 1 has completed the reversal action, so as to avoid obtaining an inaccurate reversal angle before the winch 1 has completed the reversal action after being shut down, thereby improving the accuracy of the detection results.

[0041] In some implementations, the crane monitoring method further includes: Step S0: Raise the crane boom assembly to the minimum working radius.

[0042] It should be noted that step S0 is performed before step S1 so that the distance between the hook 2 and the ground is greater than a preset distance, thereby providing sufficient distance for the movement of the hook 2.

[0043] The following provides a preferred embodiment of a crane inspection method, but this preferred embodiment is not intended to limit the scope of protection of this application: First, control the engine speed of winch 1 to increase to the maximum speed and determine the moment when the engine speed reaches the maximum speed as the starting moment. At the same time, monitor the hydraulic pressure of the hydraulic oil circuit of winch 1, so as to determine that the engine speed has increased to the maximum speed by increasing the hydraulic pressure to the maximum value. Secondly, control the winch 1 to drive the hook 2 to move to the preset distance at the maximum speed and determine the time when the hook 2 moves to the preset distance as the termination time. At the same time, monitor the hydraulic pressure of the hydraulic circuit of the winch 1. If the hydraulic pressure of the winch 1 fluctuates after reaching the maximum value, it is necessary to determine the time when the hydraulic pressure of the winch 1 reaches the maximum value again as the start time. Subsequently, the test time is determined based on the termination time and the start time, and the drum diameter of winch 1, the wire rope diameter of winch 1, and the number of layers where the wire rope of winch 1 is located are obtained. The test time, preset distance, drum diameter, wire rope diameter, and number of layers where the wire rope is located are substituted into the first calculation formula to obtain the actual value of the maximum winch speed. Then, control the winch 1 to stop and determine that the winch 1 has completed the reverse action before obtaining the reverse angle. At the same time, monitor the hydraulic pressure of the hydraulic oil circuit of the winch 1, so as to determine that the winch 1 has been shut down by the hydraulic pressure being zero. Finally, the actual value of the maximum hoisting speed is compared with the standard value of the maximum hoisting speed, and the actual value of the reverse amount is compared with the standard value of the reverse amount to evaluate the core performance, safety and market competitiveness of the crane.

[0044] like Figure 2 and Figure 3 As shown in the illustration, a specific embodiment of this application also provides a crane equipment inspection system, comprising: A distance sensor is used to detect the distance between the crane's hook 2 and the ground; Rotary encoder 3 is used to detect the rotation angle of winch 1; The processor is capable of communicating with the winch 1, the distance sensor, and the rotary encoder 3, and is configured as follows: The engine speed of winch 1 is increased to the maximum speed, and the moment when the engine speed reaches the maximum speed is determined as the starting moment; Control the winch 1 to drive the hook 2 to move at maximum speed to a preset distance, and determine the moment when the hook 2 moves to the preset distance as the termination moment; The actual value of the maximum hoisting speed is determined based on the start time, end time, and preset distance. Control winch 1 to stop and determine the reversal angle of winch 1; The actual value of the reversal amount of winch 1 is determined based on the reversal angle.

[0045] In a specific embodiment of this application, the detection process of maximum hoisting speed and the detection process of reverse rotation are automatically completed in one go by a ranging sensor, a rotary encoder 3 and a processor, without the need to detect the maximum hoisting speed and the reverse rotation separately. This simplifies the detection steps in the product testing stage. At the same time, the use of a processor to automatically process data and calculate results can effectively improve the accuracy of the detection results and complete the detection process quickly, thereby improving detection efficiency.

[0046] In some implementations, the distance sensor is mounted on the hook 2 using a magnetic fixture. The magnetic fixture facilitates the installation and removal of the distance sensor, making the crane detection system easy to install.

[0047] It should be noted that the structure and operation of the ranging sensor and the rotary encoder 3 are well known to those skilled in the art and are not part of the core inventive points of this application, so they will not be described in detail here.

[0048] In some embodiments, the crane equipment detection system further includes a hydraulic sensor for detecting the hydraulic pressure of the winch 1, and the processor is communicatively connected to and configured to: Obtain the hydraulic pressure of the hydraulic circuit of winch 1; The starting moment is determined by the moment when the hydraulic pressure reaches its maximum value. Once the hydraulic pressure is confirmed to be zero, the reversal angle is obtained.

[0049] In a specific embodiment of this application, the engine speed of the winch 1 is ensured to reach the maximum value by adjusting the control handle to the maximum opening. This can be determined by monitoring the hydraulic pressure of the hydraulic oil circuit of the winch 1 to determine whether the control handle has reached the maximum opening, thereby determining whether the engine speed of the winch 1 has reached the maximum value.

[0050] In some implementations, the processor is further configured to: After the hydraulic pressure of winch 1 reaches its maximum value, it fluctuates. The moment when the hydraulic pressure of winch 1 reaches its maximum value again is determined as the starting moment.

[0051] In some embodiments, the crane equipment detection system also includes a controller for inputting standard values ​​for the maximum hoisting speed and the reverse rotation amount. The processor is communicatively connected to and configured with the rotary encoder 3 as follows: Once the actual value of the maximum hoisting speed is confirmed to meet the standard value, a speed compliance signal is sent to the controller. Once the actual value of the reversal amount is confirmed to meet the standard value, a reversal amount qualified signal is sent to the controller.

[0052] In a specific embodiment of this application, the processor compares the actual value of the maximum hoisting speed with the standard value and the actual value of the reversal amount with the standard value, and outputs the corresponding qualified signal to the controller based on the comparison result, thereby realizing automatic judgment of the detection result and intuitive feedback of the detection result, which in turn facilitates the rapid completion of the detection process and improves the accuracy of the detection result judgment.

[0053] In some embodiments, the crane equipment detection system further includes a vision detector 4, which is used to collect the reversing motion of the winch 1. The processor is communicatively connected to and configured with the vision detector 4 as follows: The reversal angle is obtained only after the winch 1 has completed its reversal action.

[0054] Specifically, the visual detector 4 is mounted on the top of the winch 1 via the mounting bracket 5 to observe the movement status of the winch 1 in real time. After the reversal action is completed, it can directly send a signal to the processor, which then obtains the reversal angle collected by the rotary encoder 3, thereby improving the accuracy of the detection results.

[0055] It should be noted that the structure and principle of the hydraulic sensor and the vision detector 4 are well known to those skilled in the art and are not part of the core inventive points of this application, so they will not be described in detail here.

[0056] In some implementations, the processor uses an on-board computing gateway box, the controller uses a mobile tablet, and the ranging sensor, rotary encoder 3, and vision detector 4 transmit data to the processor via an industrial data transmission terminal. In addition to inputting the standard values ​​for the maximum hoisting speed and the reverse rotation amount, the mobile tablet can also input parameters such as the drum diameter, wire rope diameter, and the number of layers of the wire rope required for calculation. In other words, the mobile tablet enables intelligent operation of the inspection process, facilitating use by the tester and greatly improving the convenience of inspecting crane equipment.

[0057] This application provides a crane monitoring system that features multi-dimensional perception using a combination of visual monitors and hydraulic sensors, automatic measurement and control using a combination of controllers and processors, and integrates digital means such as process control, algorithm analysis, and parameter diagnosis to automatically detect the maximum hoisting speed and reverse rotation of crane equipment, thereby greatly improving the convenience of detection and the accuracy of detection results.

[0058] A specific embodiment of this application also provides a machine-readable storage medium storing instructions that cause a machine to perform the above-described crane equipment detection method.

[0059] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0060] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0061] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0062] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxesFigure 1 The steps of the function specified in one or more boxes.

[0063] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0064] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0065] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0066] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0067] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for testing crane equipment, characterized in that, include: The engine speed of the control winch (1) is increased to the maximum speed, and the moment when the engine speed reaches the maximum speed is determined as the starting moment; Control the winch (1) to drive the hook (2) to move to a preset distance at the maximum speed and determine the time when the hook (2) moves to the preset distance as the termination time; The actual value of the crane's maximum hoisting speed is determined based on the start time, the end time, and the preset distance. Control the winch (1) to stop and obtain the reversal angle of the winch (1); The actual value of the reversal amount of the winch (1) is determined based on the reversal angle.

2. The crane equipment testing method according to claim 1, characterized in that, The step of determining the maximum hoisting speed of the crane based on the start time, the end time, and the preset distance includes: The test time is determined based on the termination time and the start time; Obtain the drum diameter of the winch (1), the wire rope diameter of the winch (1), and the number of layers of the wire rope of the winch (1); Substituting the test time, the preset distance, the drum diameter, the wire rope diameter, and the number of layers where the wire rope is located into the first calculation formula, the actual value of the maximum hoisting speed is obtained; The first calculation formula is: Wherein, ω is the maximum hoisting speed; The preset distance is D; the drum diameter is m; the wire rope layer number is m; and the wire rope diameter is d. The test time is specified.

3. The crane equipment testing method according to claim 1, characterized in that, The actual value of the reversal amount of the winch (1) determined based on the reversal angle includes: Obtain the drum diameter of the winch (1), the wire rope diameter of the winch (1), and the number of layers of the wire rope of the winch (1); The amount of reversal is obtained by substituting the reversal angle, the drum diameter, the wire rope diameter, and the number of layers of the wire rope into the second calculation formula; The second calculation formula is: L=n∏(D+2md) / 180; Wherein, L is the amount of reversal; n is the angle of reversal; π is pi; D is the diameter of the drum; m is the number of layers of the wire rope; and d is the diameter of the wire rope.

4. The crane equipment testing method according to claim 1, characterized in that, The crane equipment testing method further includes: obtaining the hydraulic pressure of the hydraulic oil circuit of the winch (1); The control of the winch (1) engine speed to increase to the maximum speed and the determination of the moment when the engine speed reaches the maximum speed as the start time includes: controlling the hydraulic pressure to increase to the maximum value and determining the moment when the hydraulic pressure reaches the maximum value as the start time; The process of controlling the winch (1) to stop and obtaining the reversal angle of the winch (1) includes: controlling the hydraulic pressure to become zero and obtaining the reversal angle after determining that the hydraulic pressure is zero.

5. The crane equipment testing method according to claim 4, characterized in that, The crane equipment testing method also includes: After the hydraulic pressure of the winch (1) reaches its maximum value, it fluctuates. The moment when the hydraulic pressure of the winch (1) reaches its maximum value again is determined as the starting moment.

6. The crane equipment testing method according to claim 1, characterized in that, The process of controlling the winch (1) to stop and obtaining the reversal angle of the winch (1) includes: The reversal angle is obtained after the winch (1) has completed the reversal action.

7. A crane equipment detection system, characterized in that, include: A distance sensor is used to detect the distance between the crane hook (2) and the ground; A rotary encoder (3) is used to detect the rotation angle of the winch (1); The processor is capable of communicating with the winch (1), the ranging sensor, and the rotary encoder (3), and is configured as follows: The engine speed of the winch (1) is increased to the maximum speed, and the moment when the engine speed reaches the maximum speed is determined as the start time; Control the winch (1) to drive the hook (2) to move to a preset distance at the maximum speed, and determine the time when the hook (2) moves to the preset distance as the termination time; The actual value of the maximum hoisting speed is determined based on the start time, the end time, and the preset distance. Control the winch (1) to stop and determine the reversing angle of the winch (1); The actual value of the reversal amount of the winch (1) is determined based on the reversal angle.

8. The crane equipment detection system according to claim 7, characterized in that, The crane equipment detection system also includes a hydraulic sensor for detecting the hydraulic pressure of the winch (1), and the processor is communicatively connected to the hydraulic sensor and configured to: Obtain the hydraulic pressure of the hydraulic circuit of the winch (1); The start time is determined as the moment when the hydraulic pressure reaches its maximum value. After confirming that the hydraulic pressure is zero, the reversal angle is obtained.

9. The crane equipment detection system according to claim 8, characterized in that, The processor is also configured to: After the hydraulic pressure of the winch (1) reaches its maximum value, it fluctuates. The moment when the hydraulic pressure of the winch (1) reaches its maximum value again is determined as the starting moment.

10. The crane equipment detection system according to claim 7, characterized in that, The crane equipment detection system also includes a controller, which is used to input the standard value of the maximum hoisting speed and the standard value of the reverse amount. The processor is communicatively connected to the rotary encoder (3) and configured as follows: Once it is determined that the actual value of the maximum hoisting speed meets the standard value, a speed compliance signal is sent to the controller; Once the actual value of the reversal amount is determined to meet the standard value, a reversal amount qualified signal is sent to the controller.

11. The crane equipment detection system according to claim 7, characterized in that, The crane equipment detection system also includes a vision detector (4), which is used to collect the reversing action of the winch (1). The processor is communicatively connected to the vision detector (4) and configured as follows: The reversal angle is obtained after the winch (1) has completed the reversal action.

12. A machine-readable storage medium, characterized in that, The machine-readable storage medium stores instructions for causing the machine to perform the crane equipment testing method according to any one of claims 1 to 6.

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