A crane performance extension method, system and crane

Abstract

The present application belongs to the technical field of crane control, and particularly relates to a crane performance extension method, system and crane. The method comprises the following steps: screening a query telescopic combination from a given telescopic combination of the crane based on a current telescopic combination; obtaining a query working amplitude of the query telescopic combination based on a matching relationship between the current telescopic combination and the current working amplitude; obtaining a rated hoisting weight of the crane under the current telescopic combination, the current working amplitude and a current multiplying factor based on the query working amplitude, a total arm length of the query telescopic combination and a performance table of the query telescopic combination; and obtaining a maximum working amplitude of the current telescopic combination according to the total arm length of the current telescopic combination based on a matching relationship between the maximum working amplitude of the query telescopic combination and the total arm length of the query telescopic combination. The present application solves the problem that the crane with a single-cylinder bolt telescopic arm cannot carry out hoisting operation under the safety protection of a force limiter under the telescopic combination without given performance.

Description

Technical Field

[0001] This invention belongs to the field of crane control technology, specifically relating to a crane performance enhancement method, system, and crane. Background Technology

[0002] Cranes, especially wheeled cranes, are widely used in urban construction, factory equipment hoisting, and wind power installation as mobile lifting and handling machinery. With the increasing demands for lifting tonnage and boom length, single-cylinder pin-type telescopic booms are widely used in medium and large tonnage cranes. A single-cylinder pin-type telescopic boom uses a single telescopic cylinder to extend and retract each boom section sequentially. Adjacent boom sections are rigidly connected by the engagement of a boom pin and its corresponding hole. Lifting performance is affected by the boom extension and retraction configuration.

[0003] In factory and building construction sites, there are situations requiring frequent switching between near and far reach, and low and high altitude operations. Generally, single-cylinder pin-type cranes offer only a few dozen, at most a hundred, performance-based telescopic combinations. Taking a certain seven-section boom product as an example, the given performance-based telescopic combinations for the main boom are 43; however, the theoretical number of telescopic combinations is 4 to the power of 6, or 4096; the given combinations account for only 1.05%. According to national and industry standards, lifting operations are prohibited without performance-based combinations. Therefore, the existing performance-based telescopic combinations are far from meeting the needs of multi-scenario operation. Ideally, performance should be given for every telescopic combination, but current methods for giving crane performance-based combinations require extensive calculations and are time-consuming, making complete calculation impractical.

[0004] For situations requiring heavy lifting operations with more telescopic combinations, existing technologies offer the following solutions:

[0005] (1) Calculation method: Provide more telescopic combinations with different performance characteristics, such as expanding from dozens to 100, 200 or even more. This gives users more telescopic combinations to choose from. The performance of a single-cylinder pin crane is related to the crane's maximum lifting torque, wire rope tension, chassis structural performance, forward stability, reverse stability, telescopic combination, boom strength / rigidity / buckling, luffing angle, working radius, etc. The calculation process is as follows: obtain the structural performance of each load-bearing component of the crane through finite element analysis and other methods; summarize the performance of each component and combine it with the crane's working conditions to obtain the overall calculated performance of the crane under each working condition; manually verify the performance points to obtain the crane's verification performance; verify the performance points on a real vehicle to obtain the final performance of the crane under each working condition and each telescopic combination. As can be seen from the technical solution of the calculation method, its steps are cumbersome. If the final performance of thousands of telescopic combinations is obtained according to the above four steps, it will require a lot of material, manpower and time; and when users use it, they have to choose one from thousands of telescopic combinations, which is too difficult.

[0006] (2) Forced release method: By triggering the forced switch, the safety protection of the force limiter is released, allowing hoisting operations. The forced switch is generally used during fault rescue. Actively triggering the forced switch lacks safety protection and may cause dangers such as boom breakage or overturning.

[0007] Therefore, manufacturers typically select several high-performance telescopic combinations for each boom length, totaling dozens, based on their design experience, and provide them to users with a given final performance. However, a fixed set of dozens of telescopic combinations often cannot meet the needs of multi-scenario operations. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a crane performance enhancement method, system, and crane, which solves the problem that cranes with single-cylinder pin telescopic booms cannot perform lifting operations under the safety protection of force limiters when there is no given performance telescopic combination.

[0009] To address the shortcomings of existing technologies, the technical solution provided by this invention is as follows:

[0010] A method for extending the performance of a crane, comprising:

[0011] Based on the current telescopic combination, filter the query telescopic combination from the given telescopic combinations of the crane;

[0012] Based on the matching relationship between the current scaling combination and the current working range, obtain the query working range of the query scaling combination;

[0013] Based on the query working radius, query the total boom length of the telescopic combination, and query the performance table of the telescopic combination, obtain the rated lifting capacity of the crane under the current telescopic combination, current working radius, and current magnification; based on the matching relationship between the maximum working radius of the telescopic combination and the total boom length of the telescopic combination, obtain the maximum working radius of the current telescopic combination according to the total boom length of the current telescopic combination.

[0014] Preferably, the selected query scaling combinations satisfy:

[0015] The total arm length of the query scaling combination is not less than the current total arm length of the current scaling combination;

[0016] Furthermore, the arm length of each section of the query telescopic combination is not less than the current arm length of each section of the corresponding current telescopic combination.

[0017] Preferably, the step of filtering the query telescopic combination from the given telescopic combinations of the crane based on the current telescopic combination includes:

[0018] The current telescopic combination is compared with the given telescopic combination of the crane to obtain the candidate given telescopic combination;

[0019] Sort the candidate given stretching combinations according to the total arm length to obtain the set of given stretching combinations with the shortest total arm length;

[0020] Select a given scaling combination from the set of given scaling combinations with the shortest total arm length as the query scaling combination;

[0021] The filtering conditions include: the total arm length of the given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each segment of the given telescopic combination is not less than the current arm length of each segment of the corresponding current telescopic combination.

[0022] Preferably, the step of filtering the query telescopic combination from the given telescopic combinations of the crane based on the current telescopic combination includes:

[0023] Sort the given telescopic combinations of the cranes in ascending order of total boom length;

[0024] Starting with the given scaling combination with the smallest total arm length, the current scaling combination is compared with each given scaling combination in turn to obtain the first given scaling combination that meets the filtering conditions. The first given scaling combination that meets the filtering conditions is used as the query scaling combination.

[0025] The filtering conditions include: the total arm length of the given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each segment of the given telescopic combination is not less than the current arm length of each segment of the corresponding current telescopic combination.

[0026] Preferably, the step of obtaining the rated lifting capacity of the crane under the current telescopic combination, current working radius, and current boom ratio based on querying the working radius, querying the total boom length of the telescopic combination, and querying the performance table of the telescopic combination includes:

[0027] Based on the performance table of the query scaling combination, obtain the query working range and the query performance corresponding to the total arm length of the query scaling combination.

[0028] Determine whether the current scaling factor is less than the scaling factor corresponding to the queried telescopic combination. If so, take the minimum value between the queried performance and the maximum load capacity of the lifting rope as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor. Otherwise, take the queried performance as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor.

[0029] A crane performance enhancement system includes a storage module, a current telescopic combination acquisition module, a telescopic combination query acquisition module, a working radius query acquisition module, a rated lifting weight acquisition module, and a maximum working radius acquisition module;

[0030] The storage module is used to store a given telescopic combination of the crane and a performance table of the given telescopic combination;

[0031] The current telescopic combination acquisition module is used to acquire the current telescopic combination and current working radius of the crane;

[0032] The query telescopic combination acquisition module is used to filter out query telescopic combinations from the given telescopic combinations of the crane based on the current telescopic combination.

[0033] The query working range acquisition module is used to obtain the query working range of the query scaling combination based on the matching relationship between the current scaling combination and the current working range.

[0034] The rated lifting weight acquisition module is used to obtain the rated lifting weight of the crane under the current telescopic combination, current working range, and current multiplier based on querying the working radius, querying the total boom length of the telescopic combination, and querying the performance table of the telescopic combination.

[0035] The maximum working range acquisition module is used to obtain the maximum working range of the current telescopic combination based on the matching relationship between the maximum working range of the query telescopic combination and the total arm length of the query telescopic combination, and according to the total arm length of the current telescopic combination.

[0036] Preferably, the query scaling combination acquisition module is specifically used to filter query scaling combinations according to the following steps:

[0037] The current telescopic combination is compared with the given telescopic combination of the crane to obtain the candidate given telescopic combination;

[0038] Sort the candidate given scaling combinations according to the total arm length to obtain the set of candidate given scaling combinations with the shortest total arm length;

[0039] Select one given scaling combination from the set of given scaling combinations with the shortest total arm length as the query scaling combination;

[0040] The filtering conditions include: the total arm length of the given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each segment of the given telescopic combination is not less than the current arm length of each segment of the corresponding current telescopic combination.

[0041] Preferably, the query scaling combination acquisition module is specifically used for,

[0042] Sort the given telescopic combinations of the cranes in ascending order of total boom length;

[0043] Starting with the given scaling combination with the smallest total arm length, the current scaling combination is compared with each given scaling combination in turn to obtain the first given scaling combination that meets the filtering conditions. The first given scaling combination that meets the filtering conditions is used as the query scaling combination.

[0044] The filtering conditions include: the total arm length of the given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each segment of the given telescopic combination is not less than the current arm length of each segment of the corresponding current telescopic combination.

[0045] Preferably, the rated lifting weight acquisition module is used for,

[0046] Based on the performance table of the query scaling combination, obtain the query working range and the query performance corresponding to the total arm length of the query scaling combination.

[0047] Determine whether the current scaling factor is less than the scaling factor corresponding to the queried telescopic combination. If so, take the minimum value between the queried performance and the maximum load capacity of the lifting rope as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor. Otherwise, take the queried performance as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor.

[0048] A crane including the aforementioned crane performance extension system.

[0049] The beneficial effects of this invention are:

[0050] This invention extends the performance of a single-cylinder pin-type crane to achieve performance in non-given telescopic combinations, thereby enabling lifting capacity under any telescopic combination and meeting the user's needs for lifting operations under any telescopic combination and force limiter protection.

[0051] This invention retrieves the real-time performance of the current telescopic combination based on a given telescopic combination performance table, avoiding a large amount of complex calculations in the computational method, and enabling operation on the vehicle-mounted end, saving a significant amount of material, manpower, and time. Attached Figure Description

[0052] Figure 1 To obtain the flowchart for query scaling combination;

[0053] Figure 2 A flowchart for obtaining the current rated lifting weight and maximum working radius of the telescopic combination;

[0054] Figure 3 This is a schematic diagram illustrating the acquisition of the current scaling combination;

[0055] Figure 4 A schematic diagram of a crane performance expansion system;

[0056] Figure 5 This is a schematic diagram showing the total boom length and current working radius of the crane's current telescopic combination;

[0057] Figure 6 A schematic diagram for querying the total boom length and working radius of a crane telescopic combination;

[0058] Among them, 1 is the storage module, 2 is the current telescopic combination acquisition module, 3 is the query telescopic combination acquisition module, 4 is the query working radius acquisition module, 5 is the rated lifting weight acquisition module, 6 is the maximum working radius acquisition module, and 7 is the display module. Detailed Implementation

[0059] The present invention will be further described below with reference to the embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0060] Example 1

[0061] An embodiment of the present invention discloses a method for extending the performance of a crane, comprising the following steps:

[0062] Step 1: Obtain the crane's current telescopic combination and current working radius:

[0063] See Figure 3 The current telescopic configuration of the crane can be obtained through actual vehicle inspection, and the steps include:

[0064] The current total boom length is obtained based on the telescopic cylinder length detection sensor; the current cylinder pin and boom pin locking status of each boom section is obtained based on the cylinder pin detection sensor and boom pin status detection sensor; and the current boom length of each boom section is obtained based on the current cylinder pin and boom pin locking status of each boom section and the boom position detection sensor.

[0065] The current telescopic combination is obtained based on the current total arm length and the current arm length of each arm segment.

[0066] The above process is a method to obtain the current telescopic combination through actual vehicle testing. The current telescopic combination can also be obtained through simulation by manual setting.

[0067] Step 2: See Figure 1 Based on the current telescopic combination, filter the query telescopic combination from the given telescopic combinations of the crane:

[0068] The selected telescopic combinations satisfy the following conditions: the total arm length is not less than the current total arm length of the current telescopic combination, and the arm length of each segment of the telescopic combination is not less than the current arm length of each segment of the corresponding current telescopic combination.

[0069] The filtering steps for querying scaling combinations include:

[0070] The current telescopic combination is compared with the given telescopic combination of the crane to obtain the candidate given telescopic combination;

[0071] Sort the candidate given stretching combinations according to the total arm length to obtain the set of given stretching combinations with the shortest total arm length;

[0072] Select one from the set of given scaling combinations with the shortest total arm length as the query scaling combination;

[0073] The filtering criteria include: the total arm length of the given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each section of the given telescopic combination is not less than the current arm length of each section of the corresponding current telescopic combination.

[0074] In an optional embodiment of the present invention, a given telescopic combination with the shortest total arm length can be selected as the query telescopic combination from the set of given telescopic combinations with the shortest selected arm or the longest selected arm. The selected arm can be the outermost arm. When the outermost arms are also equal, other arms can be selected, such as the second outermost arm adjacent to the outermost arm.

[0075] In other embodiments of the present invention, the following steps can also be used to filter and query telescopic combinations: sort the given telescopic combinations of the crane in ascending order of total boom length; starting from the given telescopic combination with the smallest total boom length, compare the current telescopic combination with each given telescopic combination in turn; when a given telescopic combination that meets the above filtering conditions is obtained, stop comparing the next given telescopic combination, and take the first given telescopic combination that meets the filtering conditions as the query telescopic combination.

[0076] In this invention, query scaling combinations can also be manually set directly. Any given scaling combination that satisfies the following conditions: the total arm length is not less than the current total arm length of the current scaling combination, and the arm length of each segment is not less than the current arm length of each segment of the corresponding current scaling combination can be used as a query scaling combination, and performance can be obtained according to this query scaling combination. Of course, the aforementioned query scaling combination searched based on the shortest total arm length is a preferred method.

[0077] The telescopic combination is a given telescopic combination of the crane. Therefore, once the telescopic combination is determined, its working radius, rated lifting capacity, and maximum working radius can be directly obtained based on the existing performance table of the telescopic combination.

[0078] Table 1

[0079]

[0080]

[0081] Table 1 shows the performance of a given telescopic combination of a five-section boom. Each column represents the rated lifting capacity for different working radius under a given telescopic combination. In the code of a given telescopic combination, 0 indicates that the boom extension position is position 0, at which point the boom is shortest; 1 indicates that the boom extension position is position 1, and the boom length has increased. The larger the number, the longer the boom length.

[0082] Taking the current telescopic boom assembly 00001 as an example, the process of obtaining the telescopic boom assembly for querying is explained. Its total boom length is also 15.8m, but this telescopic boom assembly is not in Table 1. Therefore, it cannot be used for lifting heavy loads under normal circumstances. According to the above filtering process, telescopic boom assembly 00011 can be selected from Table 1 as the query telescopic boom assembly. Its boom length of 19.8m is greater than 15.8m, and the boom length of each section is not less than the current boom length of each section of the corresponding current telescopic boom assembly 00001.

[0083] Step 3: See Figure 2 Based on the matching relationship between the current scaling combination and the current working range, the query working range of the query scaling combination is obtained, and the calculation formula is as follows:

[0084]

[0085] Where R1 represents the query workload, R2 represents the current workload, and L b1 L represents the total arm length of the query scaling combination. b2 L represents the total arm length of the current telescopic combination; a is a structural parameter representing the horizontal distance between the lower hinge point of the boom and the center of rotation; k is an adjustment coefficient, the value of which is determined by the boom cylinder diameter and the total boom length of the telescopic combination.

[0086] Figure 5 and Figure 6 The invention presents schematic diagrams showing the total boom length and current working radius of the current telescopic combination, as well as the total boom length and query telescopic radius of a query telescopic combination. It obtains the query working radius corresponding to the current working radius based on the premise that the cosine value of the angle between the boom and the horizontal plane is equal, preparing for the next step of obtaining the performance of the current telescopic combination. The boom diameter and boom curvature affect the cosine value of the angle between the boom and the horizontal plane, which is corrected using k.

[0087] As can be seen from Table 1, the performance table does not provide the total arm length and current working radius for all angles. When the working radius cannot be calculated in the performance table, the current working radius of the current telescopic combination can be adjusted appropriately.

[0088] Step 4: Obtain the rated lifting weight and maximum working radius of the current telescopic assembly.

[0089] See Figure 2 Based on the query working radius, the query total boom length of the telescopic combination, and the query performance table of the telescopic combination, the rated lifting capacity of the crane under the current telescopic combination, current working radius, and current boom ratio can be obtained, thus yielding the performance of the current telescopic combination. The process is as follows:

[0090] Based on the performance table of the query scaling combination, obtain the query working range and the query performance corresponding to the total arm length of the query scaling combination.

[0091] Determine if the current scaling factor is less than the scaling factor corresponding to the queried telescopic combination. If so, use the minimum value between the queried performance and the maximum load capacity of the lifting rope as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor. Otherwise, use the queried performance as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor.

[0092] Based on the matching relationship between the maximum working radius of the query telescopic combination and the total arm length of the query telescopic combination, the maximum working radius of the current telescopic combination is obtained according to the total arm length of the current telescopic combination. The calculation formula is as follows:

[0093]

[0094] Among them, R 2m R represents the maximum working radius of the current telescoping combination. 1m This indicates the maximum working range of the query scaling combination.

[0095] Step 5: Store and remotely transmit the performance data of the current telescopic assembly (rated lifting capacity, maximum working radius, etc.), and record the current telescopic assembly as a given telescopic assembly with known performance. Subsequent human-machine interaction and lifting operations can then proceed. Send the performance data of the current telescopic assembly to the force limiter, which can provide safety protection for the current operation.

[0096] The crane performance enhancement method provided by this invention is not limited to specific hardware; it can be implemented within one or more hardware components, including the onboard controller, force limiter, and display. Alternatively, it can be processed in the cloud or on a server via a network connection, and the results can be transmitted to the crane. This crane performance enhancement method can be used for actual vehicle operation, as well as for pure software simulation, hardware-in-the-loop simulation, etc.

[0097] In other embodiments of the present invention, multiple query combinations can be set, and the performance tables of the multiple query scaling combinations can be combined into a composite performance table. Based on this, multiple working ranges corresponding to the current working range are obtained based on the multiple query scaling combinations and the current scaling combination, and the query working range is obtained based on the multiple working ranges. Specifically, the maximum, minimum, or average value among the multiple working ranges can be used as the query working range. Similarly, the rated lifting weight and maximum working range of the current scaling combination can be obtained by taking the larger or smaller value from the composite performance table.

[0098] Example 2

[0099] This invention also provides a crane performance enhancement system, see [link to relevant documentation]. Figure 4It includes a storage module 1, a current telescopic combination acquisition module 2, a query telescopic combination acquisition module 3, a query working radius acquisition module 4, a rated lifting weight acquisition module 5, a maximum working radius acquisition module 6, and a display module 7;

[0100] The storage module is used to store a given telescopic combination of the crane and a performance table of the given telescopic combination;

[0101] The current telescopic combination acquisition module is used to acquire the current telescopic combination and current working radius of the crane;

[0102] The module for obtaining telescopic combinations is used to filter out the telescopic combinations to be retrieved from the given telescopic combinations of the crane based on the current telescopic combination.

[0103] The query working range acquisition module is used to obtain the query working range of the query scaling combination based on the matching relationship between the current scaling combination and the current working range.

[0104] The rated lifting weight acquisition module is used to obtain the rated lifting weight of the crane under the current telescopic combination, current working range, and current lifting ratio based on querying the working radius, querying the total boom length of the telescopic combination, and querying the performance table of the telescopic combination.

[0105] The maximum working radius acquisition module is used to obtain the maximum working radius of the current telescopic combination based on the matching relationship between the maximum working radius of the query telescopic combination and the total arm length of the query telescopic combination, and according to the total arm length of the current telescopic combination.

[0106] The display module is used to display the crane's current operating parameters, the given telescopic combination and its performance table, the rated lifting capacity and maximum working radius of the newly acquired telescopic combination, and other information. The display module also has a human-machine interface window to facilitate operators in selecting telescopic combinations, setting and querying telescopic combinations, and selecting operating conditions.

[0107] The current scaling combination acquisition module is specifically used for,

[0108] The current total boom length is obtained based on the telescopic cylinder length detection sensor; the current boom length of each boom section is obtained based on the boom position detection sensor, cylinder pin detection sensor, and boom pin status detection sensor.

[0109] The current telescopic combination is obtained based on the current total arm length and the current arm length of each arm segment.

[0110] The module for retrieving scaling combinations is specifically used to filter and retrieve scaling combinations according to the following steps.

[0111] The current telescopic combination is compared with the given telescopic combination of the crane to obtain the candidate given telescopic combination;

[0112] Sort the candidate given scaling combinations according to the total arm length to obtain the set of candidate given scaling combinations with the shortest total arm length;

[0113] Select one given scaling combination from the set of given scaling combinations with the shortest total arm length as the query scaling combination;

[0114] The selection criteria include: the total arm length of a given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each segment of a given telescopic combination is not less than the current arm length of each segment of the corresponding current telescopic combination.

[0115] Specifically, the query scaling combination acquisition module selects a given scaling combination as the query scaling combination from the set of given scaling combinations with the shortest total arm length, based on the principle of selecting the shortest or longest selected arm.

[0116] The query scaling combination acquisition module is specifically used for,

[0117] Sort the given telescopic combinations of the cranes in ascending order of total boom length;

[0118] Starting with the given scaling combination with the smallest total arm length, the current scaling combination is compared with the length of each given scaling combination in turn to obtain the first given scaling combination that meets the above filtering conditions. The first given scaling combination that meets the filtering conditions is taken as the query scaling combination.

[0119] The query workload acquisition module is used to calculate the query workload of the query scaling combination using the following formula:

[0120]

[0121] Where R1 represents the query workload, R2 represents the current workload, and L b1 L represents the total arm length of the query scaling combination. b2 L represents the total arm length of the current telescopic combination; a Here, k is a structural parameter representing the horizontal distance between the lower hinge point of the boom and the center of rotation; k is an adjustment coefficient.

[0122] The maximum working radius acquisition module is used to calculate the maximum working radius of the current telescopic combination using the following formula:

[0123]

[0124] Among them, R 2m R represents the maximum working radius of the current telescoping combination. 1m This indicates the maximum working range of the query scaling combination.

[0125] The rated lifting weight acquisition module is used for,

[0126] Based on the performance table of the query scaling combination, obtain the query working range and the query performance corresponding to the total arm length of the query scaling combination.

[0127] Determine whether the current scaling factor is less than the scaling factor corresponding to the queried telescopic combination. If so, take the minimum value between the queried performance and the maximum load capacity of the lifting rope as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor. Otherwise, take the queried performance as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor.

[0128] Example 3

[0129] This invention also provides a crane, including the aforementioned crane performance extension system. This crane is a crane with single-cylinder pin-type crane performance extension capabilities, enabling lifting operations under conditions of telescopic combination without a given performance and with force limiter safety protection.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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 boxes Figure 1 The steps of the function specified in one or more boxes.

[0134] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

[0135] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A method of crane performance extension, characterized in that, include, Based on the current telescopic combination, filter the query telescopic combination from the given telescopic combinations of the crane; Based on the matching relationship between the current scaling combination and the current working range, obtain the query working range of the query scaling combination; Based on the query working radius, query the total boom length of the telescopic combination, and query the performance table of the telescopic combination, obtain the rated lifting capacity of the crane under the current telescopic combination, current working radius, and current lifting ratio; Based on the matching relationship between the maximum working radius of the query telescopic combination and the total arm length of the query telescopic combination, the maximum working radius of the current telescopic combination is obtained according to the total arm length of the current telescopic combination. The process of filtering out query telescopic combinations from given telescopic combinations of cranes based on the current telescopic combination includes: The current telescopic combination is compared with the given telescopic combination of the crane to obtain the candidate given telescopic combination; Sort the candidate given scaling combinations according to the total arm length to obtain the set of candidate given scaling combinations with the shortest total arm length; Select a given scaling combination as the query scaling combination from the set of candidate given scaling combinations with the shortest total arm length; Wherein, the total arm length of the selected given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each section of the given telescopic combination is not less than the current arm length of each section of the corresponding current telescopic combination. or, The process of filtering out query telescopic combinations from given telescopic combinations of cranes based on the current telescopic combination includes: Sort the given telescopic combinations of the cranes in ascending order of total boom length; Starting with the given scaling combination with the smallest total arm length, the current scaling combination is compared with each given scaling combination in turn to obtain the first given scaling combination that meets the filtering conditions. The first given scaling combination that meets the filtering conditions is used as the query scaling combination. The filtering conditions include: the total arm length of the given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each segment of the given telescopic combination is not less than the current arm length of each segment of the corresponding current telescopic combination.

2. The method for extending the performance of a crane according to claim 1, characterized in that, The selected query scaling combinations satisfy: The total arm length of the query scaling combination is not less than the current total arm length of the current scaling combination; Furthermore, the arm length of each section of the query telescopic combination is not less than the current arm length of each section of the corresponding current telescopic combination.

3. The method for extending the performance of a crane according to claim 1, characterized in that, The process involves retrieving the crane's rated lifting capacity under the current telescopic combination, current working radius, and current boom ratio based on the query working radius, the total boom length of the telescopic combination, and the performance table of the telescopic combination. Based on the performance table of the query scaling combination, obtain the query working range and the query performance corresponding to the total arm length of the query scaling combination. Determine whether the current scaling factor is less than the scaling factor corresponding to the queried telescopic combination. If so, take the minimum value between the queried performance and the maximum load capacity of the lifting rope as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor. Otherwise, take the queried performance as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor.

4. A crane performance enhancement system, characterized in that, It includes a storage module, a current telescopic combination acquisition module, a telescopic combination query acquisition module, a working radius query acquisition module, a rated lifting weight acquisition module, and a maximum working radius acquisition module; The storage module is used to store a given telescopic combination of the crane and a performance table of the given telescopic combination; The current telescopic combination acquisition module is used to acquire the current telescopic combination and current working radius of the crane; The query telescopic combination acquisition module is used to filter out query telescopic combinations from the given telescopic combinations of the crane based on the current telescopic combination. The query working range acquisition module is used to obtain the query working range of the query scaling combination based on the matching relationship between the current scaling combination and the current working range. The rated lifting weight acquisition module is used to obtain the rated lifting weight of the crane under the current telescopic combination, current working range, and current multiplier based on querying the working range, querying the total boom length of the telescopic combination, and querying the performance table of the telescopic combination. The maximum working range acquisition module is used to obtain the maximum working range of the current telescopic combination based on the matching relationship between the maximum working range of the query telescopic combination and the total arm length of the query telescopic combination, and according to the total arm length of the current telescopic combination. The query scaling combination acquisition module is specifically used to filter query scaling combinations according to the following steps. The current telescopic combination is compared with the given telescopic combination of the crane to obtain the candidate given telescopic combination; Sort the candidate given scaling combinations according to the total arm length to obtain the set of candidate given scaling combinations with the shortest total arm length; Select a given scaling combination as the query scaling combination from the set of candidate given scaling combinations with the shortest total arm length; Wherein, the total arm length of the selected given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each section of the given telescopic combination is not less than the current arm length of each section of the corresponding current telescopic combination. or, The query scaling combination acquisition module is specifically used for, Sort the given telescopic combinations of the cranes in ascending order of total boom length; Starting with the given scaling combination with the smallest total arm length, the current scaling combination is compared with each given scaling combination in turn to obtain the first given scaling combination that meets the filtering conditions. The first given scaling combination that meets the filtering conditions is used as the query scaling combination. The filtering conditions include: the total arm length of the given telescopic combination is not less than the current total arm length of the current telescopic combination, and the arm length of each segment of the given telescopic combination is not less than the current arm length of each segment of the corresponding current telescopic combination.

5. A crane performance enhancement system according to claim 4, characterized in that, The rated lifting weight acquisition module is used for, Based on the performance table of the query scaling combination, obtain the query working range and the query performance corresponding to the total arm length of the query scaling combination. Determine whether the current scaling factor is less than the scaling factor corresponding to the queried telescopic combination. If so, take the minimum value between the queried performance and the maximum load capacity of the lifting rope as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor. Otherwise, take the queried performance as the rated lifting weight of the crane under the current telescopic combination, current working radius, and current scaling factor.

6. A crane, characterized in that Includes the crane performance enhancement system as described in claim 4 or 5.

Images