Method and system for controlling installation of wire rope of crane winch, and crane

Abstract

Method and system for controlling installation of a wire rope of a crane winch, based on an acquired opening degree signal of a first operation-and-control (10) component configured to trigger the installation of the wire rope of the crane winch, a current value assigned to the crane winch is determined within a current value range that is preset for the crane winch and a current value assigned to a rope-threading winch is determined within a current value range that is preset for the rope-threading winch, and when the crane winch is controlled to perform a reel-out operation at a boundary value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform a reel-in operation at a corresponding boundary value of the current value range that is preset for the rope-threading winch, the crane winch and the rope-threading winch have matched speeds. Finally, the reel-out operation and the reel-in operation are respectively controlled based on the assigned current values.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cranes, and more specifically, to a method and a system for controlling installation of a wire rope of a crane winch, and a crane.BACKGROUND

[0002] A wire rope of a large crane winch is heavy, and is difficult to drag by manpower during installation of the wire rope. Therefore, a rope-threading winch with a small wire rope is often installed to haul the wire rope of the crane winch through the rope-threading winch.

[0003] As shown in Fig. 1, a schematic structural diagram of a crane winch and a rope-threading winch of a large crane is shown. When a wire rope is installed on the crane, first, an operator operates the rope-threading winch to perform a reel-out operation, and a person on the site pulls out the small wire rope of the rope-threading winch to a hook, as shown in Fig. 2, and then pulls the small wire rope back to the crane winch and connects the small wire rope to the crane winch. Subsequently, the operator simultaneously operates the rope-threading winch to perform a reel-in operation and operates the crane winch to perform a reel-out operation, so that the wire rope of the crane winch is pulled out along a travel path of the wire rope of the rope-threading winch to the hook, thus achieving a rope threading purpose.

[0004] The existing rope threading method places high requirements on the operator's operations and experience, as the operator needs to simultaneously control the rope-threading winch to perform the reel-in operation and the crane winch to perform the reel-out operation. However, due to the uncertainty of manual operations, when the speed of the rope-threading winch is not matched with that of the crane winch, it is prone to cause disorder in the wire rope of the crane winch or breakage of the wire rope of the rope-threading winch.SUMMARY OF THE INVENTION

[0005] In view of this, embodiments of the present application are intended to provide a method and a system for controlling installation of a wire rope of a crane winch, and a crane, to solve the problem that solely relying on an operator to simultaneously control a reel-in operation of a rope-threading winch and a reel-out operation of a crane winch to implement installation of a wire rope of the crane winch places high requirements on the operator's experience and operational proficiency, and is prone to cause disorder in the wire rope of the crane winch or breakage of a wire rope of the rope-threading winch.

[0006] In a first aspect, the present invention provides a method for controlling installation of a wire rope of a crane winch, including: acquiring an opening degree signal of a first operation-and-control component, wherein the first operation-and-control component is configured to trigger the installation of the wire rope of the crane winch; determining, based on the opening degree signal of the first operation-and-control component, a current value assigned to the crane winch within a current value range that is preset for the crane winch and a current value assigned to a rope-threading winch within a current value range that is preset for the rope-threading winch, wherein, when the crane winch is controlled to perform a reel-out operation at a boundary value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform a reel-in operation at a corresponding boundary value of the current value range that is preset for the rope-threading winch, a reel-out speed of the crane winch is matched with a reel-in speed of the rope-threading winch; and controlling the crane winch to perform the reel-out operation and controlling the rope-threading winch to perform the reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch.

[0007] In a possible implementation, after controlling the crane winch to perform the reel-out operation and controlling the rope-threading winch to perform the reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch, the method further includes: acquiring a reel-in tension of the rope-threading winch; determining whether the reel-in tension is within a preset reel-in tension range; and when the reel-in tension is out of the reel-in tension range, adjusting the current value that is assigned to the crane winch or triggering an alarm, wherein the alarm is used as a prompt to adjust the reel-out speed of the crane winch.

[0008] In a possible implementation, the method for controlling installation of a wire rope of a crane winch provided in the present invention further includes: acquiring an opening degree signal of a second operation-and-control component, wherein the second operation-and-control component is configured to trigger adjustment of the reel-out speed of the crane winch; determining a current value to be reassigned to the crane winch based on the opening degree signal of the first operation-and-control component and the opening degree signal of the second operation-and-control component; and controlling the crane winch to perform the reel-out operation based on the current value to be reassigned to the crane winch.

[0009] In a possible implementation, the method for controlling installation of a wire rope of a crane winch provided in the present invention further includes: determining whether the current value to be reassigned to the crane winch is less than a lower limit value of the current value range that is preset for the crane winch; and when the current value to be reassigned to the crane winch is less than the lower limit value, controlling the crane winch to perform the reel-out operation based on the lower limit value.

[0010] In a possible implementation, the method for controlling installation of a wire rope of a crane winch provided in the present invention further includes: determining whether the reel-in tension is greater than a preset maximum reel-in tension; and when the reel-in tension is greater than the maximum reel-in tension, controlling the rope-threading winch to stop the reel-in operation, wherein the maximum reel-in tension is determined based on single wire load-bearing capacity of a wire rope of the rope-threading winch.

[0011] In a possible implementation, the method for controlling installation of a wire rope of a crane winch provided in the present invention further includes: restricting the crane winch from performing the reel-in operation and restricting the rope-threading winch from performing the reel-out operation during the installation of the wire rope of the crane winch.

[0012] In a second aspect, the present invention provides a system for controlling installation of a wire rope of a crane winch, including: a first operation-and-control component configured to trigger the installation of the wire rope of the crane winch; and a main control module configured to acquire an opening degree signal of the first operation-and-control component, determine, based on the opening degree signal of the first operation-and-control component, a current value assigned to the crane winch within a current value range that is preset for the crane winch and a current value assigned to a rope-threading winch within a current value range that is preset for the rope-threading winch, and control the crane winch to perform a reel-out operation and the rope-threading winch to perform a reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch, wherein, when the crane winch is controlled to perform a reel-out operation at a boundary value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform a reel-in operation at a corresponding boundary value of the current value range that is preset for the rope-threading winch, a reel-out speed of the crane winch is matched with a reel-in speed of the rope-threading winch.

[0013] In a possible implementation, the system for controlling installation of a wire rope of a crane winch provided in the present invention further includes: a second operation-and-control component configured to trigger adjustment of the reel-out speed of the crane winch, wherein the main control module is further configured to acquire an opening degree signal of the second operation-and-control component, determine a current value to be reassigned to the crane winch based on the opening degree signal of the first operation-and-control component and the opening degree signal of the second operation-and-control component, and control the crane winch to perform the reel-out operation based on the current value to be reassigned to the crane winch.

[0014] In a possible implementation, the system for controlling installation of a wire rope of a crane winch provided in the present invention further includes: a display module for inputting and modifying the current value ranges that are respectively preset for the crane winch and for the rope-threading winch.

[0015] In a third aspect, the present invention provides a crane including a crane body and the system for controlling installation of a wire rope of a crane winch provided in the second aspect of the present invention.

[0016] According to the method for controlling installation of a wire rope of a crane winch provided in the present invention, first, start time of a wire rope installation process and a desired installation speed for an operator are determined by acquiring an opening degree signal of a first operation-and-control component configured to trigger the installation of the wire rope of the crane winch. Subsequently, when the crane winch is controlled to perform a reel-out operation at a boundary value of a current value range that is preset for the crane winch and a rope-threading winch is controlled to perform a reel-in operation at a corresponding boundary value of a current value range that is preset for the rope-threading winch, a reel-out speed of the crane winch is matched with a reel-in speed of the rope-threading winch, so there is a corresponding relationship of correspondence between a current value assigned to the crane winch determined within the current value range that is preset for the crane winch and a current value assigned to the rope-threading winch determined within the current value range that is preset for the rope-threading winch, both based on the opening degree signal of the first operation-and-control component, and therefore, when the crane winch is controlled to perform the reel-out operation and the rope-threading winch is controlled to perform the reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch, it can ensure that the reel-out speed of the crane winch is matched with the reel-in speed of the rope-threading winch. This achieves automatic installation of the wire rope of the crane winch, thereby avoiding the phenomenon of disorder in the wire rope of the crane winch or breakage of the wire rope of the rope-threading winch that is liable to occur due to the uncertainty of manual operations.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly describe the technical solutions in the embodiments of the present application or in the prior art, a brief introduction to the drawings for use in description of the embodiments or the prior art will be given below. Obviously, the drawings described below merely represent embodiments in the present application, and to those of ordinary skill in the art, other drawings may also be obtained based on the provided drawings without creative efforts. Fig. 1 shows a schematic structural diagram of a crane winch and a rope-threading winch of a large crane. Fig. 2 shows a routing diagram of a wire rope of a rope-threading winch during installation of a wire rope of a crane winch. Fig. 3 shows a flow diagram of a method for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention. Fig. 4 shows a hydraulic schematic diagram of a rope-threading winch. Fig. 5 shows a structural diagram of an example of a current setting interface provided in an embodiment of the present invention. Fig. 6 shows a specific process diagram of controlling installation of a wire rope of a crane winch by applying a method for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention. Fig. 7 shows a structural diagram of a handle arrangement example where a method for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention is applied. Fig. 8 shows a specific process diagram of an example of installation of a wire rope of a crane winch by applying a method for controlling installation of a wire rope of a crane winch provided in the above embodiment of the present invention. Fig. 9 shows a structural diagram of a system for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention. Fig. 10 shows a structural diagram of another system for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention. Fig. 11 is a schematic structural diagram of an electronic device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] Unless otherwise defined, technical or scientific terms used in the embodiments of this specification shall have ordinary meanings understood by those of ordinary skill in the art to which this specification pertains. The words "first", "second", and the like used in the embodiments of this specification do not indicate any order, quantity, or importance, but are merely set to avoid confusion among constituent elements.

[0019] Unless the context requires otherwise, throughout this specification, the term "a plurality of" means "at least two", and the term "include" shall be interpreted as an open-ended term, meaning "including but not limited to". In description of this specification, terms such as "an embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of this specification. Illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0020] The technical solutions in the embodiments of this specification will be described below clearly and completely in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are merely part of the embodiments of this specification, rather than all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0021] It may be understood that currently, a method used in installing a wire rope of a crane winch is that an operator simultaneously operates a rope-threading winch to perform a reel-in operation and operates a crane winch to perform a reel-out operation, so that the wire rope of the crane winch is pulled out along a travel path of a wire rope of the rope-threading winch to a hook, thereby accomplishing the installation of the wire rope of the crane winch. However, this installation method requires the operator to simultaneously operate the rope-threading winch to perform the reel-in operation and operate the crane winch to perform the reel-out operation, which not only consumes manpower, but also requires the rope-threading winch and the crane winch to have matched speeds, so as to avoid disorder in the wire rope of the crane winch or breakage of the wire rope of the rope-threading winch. Therefore, it places high requirements on the operator's skills and experience.

[0022] In order to solve the above problem, the present invention provides a method for controlling installation of a wire rope of a crane winch by correlating an opening degree of a first operation-and-control component configured to trigger the installation of the wire rope of the crane winch with a current for controlling a reel-out speed of the crane winch and a current for controlling a reel-in speed of the rope-threading winch, so that after an opening degree signal of the first operation-and-control component is acquired, current values that enable the reel-out speed of the crane winch to match the reel-in speed of the rope-threading winch can be determined based on the opening degree signal of the first operation-and-control component, thereby achieving automatic control of the installation of the wire rope of the crane winch by using the proportional current values.

[0023] The method for controlling installation of a wire rope of a crane winch provided in the present invention is executed on an electronic device. The electronic device may be a controller provided on a crane, or may be another controller independent of the crane, or may be an intelligent terminal device, such as a laptop computer, a personal computer, and a tablet computer, that can communicate with a crane control system. Of course, in some cases, the electronic device may also be a network-side server.

[0024] Based on the foregoing, referring to Fig. 3, which is a flow diagram of a method for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention, a process of the method for controlling installation of a wire rope of a crane winch provided in this embodiment may include the following steps: S100: acquiring an opening degree signal of a first operation-and-control component, wherein the first operation-and-control component is configured to trigger the installation of the wire rope of the crane winch.

[0025] It may be understood that the first operation-and-control component may be a handle, a knob, a button, or any other component that can be operated by an operator to send to the controller of the crane an instruction signal related to the installation of the wire rope of the crane winch.

[0026] Specifically, in an example where the first operation-and-control component is a handle, under normal circumstances, before the operator pushes the handle, an opening degree of the handle is 0, and at this point, the handle does not send any signal to the controller. When the operator pushes the handle, the handle has an opening degree. Similar to an accelerator pedal of a vehicle, a greater opening degree indicates that the operator expects a target operation to be performed at a higher speed, while a smaller opening degree indicates that the operator expects the target operation to be performed at a lower speed. Therefore, on the one hand, upon receiving the opening degree signal emitted by the handle, the controller may determine that the operator has given an instruction to install the wire rope of the crane winch. On the other hand, the controller may determine, based on the opening degree of the handle, the operator's requirement for a speed of installing the wire rope of the crane winch.

[0027] S110: determining, based on the opening degree signal of the first operation-and-control component, a current value assigned to the crane winch within a current value range that is preset for the crane winch and a current value assigned to a rope-threading winch within a current value range that is preset for the rope-threading winch.

[0028] As described above, the opening degree of the first operation-and-control component may reflect the operator's requirement for the installation speed of the wire rope of the crane winch. It may be understood that, taking the rope-threading winch as an example, as can be seen from the hydraulic principle of the rope-threading winch shown in Fig. 4, the current assigned to the rope-threading winch can control an opening of a counterbalance valve of a winch motor. Therefore, the current for the rope-threading winch is positively correlated with a reel-in speed of the rope-threading winch. That is, the greater the current assigned to the rope-threading winch, the faster the reel-in speed of the rope-threading winch; conversely, the smaller the current assigned to the rope-threading winch, the slower the reel-in speed. Similarly, the greater the current assigned to the crane winch, the faster a reel-out speed of the crane winch.

[0029] Based on this, after the opening degree signal of the first operation-and-control component is correlated with the currents assigned to the crane winch and the rope-threading winch, based on the opening degree signal of the first operation-and-control component, a current value assigned to the crane winch and a current value assigned to the rope-threading winch may be determined, i.e., the reel-out speed of the crane winch and the reel-in speed of the rope-threading winch may be determined.

[0030] It is to be noted that when the current values assigned to the crane winch and the rope-threading winch are determined based on the opening degree signal of the first operation-and-control component, the reel-out speed of the crane winch can be matched with the reel-in speed of the rope-threading winch, and automatic installation of the wire rope of the crane winch can be achieved.

[0031] In this embodiment, current ranges are preset for the crane winch and the rope-threading winch, respectively, such that when the crane winch is controlled to perform the reel-out operation at a boundary value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform the reel-in operation at a corresponding boundary value of the current value range that is preset for the rope-threading winch, the reel-out speed of the crane winch is matched with the reel-in speed of the rope-threading winch. That is, when the crane winch is controlled to perform the reel-out operation at a minimum value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform the reel-in operation at a minimum value of the current value range that is preset for the rope-threading winch, the reel-out speed of the crane winch is matched with the reel-in speed of the rope-threading winch; and when the crane winch is controlled to perform the reel-out operation at a maximum value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform the reel-in operation at a maximum value of the current value range that is preset for the rope-threading winch, the reel-out speed of the crane winch is also matched with the reel-in speed of the rope-threading winch.

[0032] It may be understood that when maximum and minimum values of the current assigned to the crane winch or the rope-threading winch are determined, the current value range that is preset for the crane winch or the rope-threading winch is determined.

[0033] Based on this, in some possible embodiments, maximum and minimum values of current values assigned to the crane winch are determined first, and then based on reel-out speeds of the crane winch at the maximum and minimum current values, maximum and minimum current values for the rope-threading winch that match the reel-out speeds of the crane winch are further determined. In this way, the current value range that is preset for the crane winch and the corresponding current value range that is preset for the rope-threading winch are determined.

[0034] In some possible embodiments, alternatively, maximum and minimum values of current values assigned to the rope-threading winch are determined first, and then, based on reel-in speeds of the rope-threading winch at the maximum and minimum current values, maximum and minimum current values for the crane winch that match the reel-in speeds of the rope-threading winch are further determined. In this way, the current value range that is preset for the rope-threading winch and the corresponding current value range that is preset for the crane winch are determined.

[0035] Further, a current setting interface as shown in Fig. 5 may be provided on a display terminal connected to the controller, or on a central control screen of the crane, to allow an operator to input the maximum and minimum values of the current values assigned to the crane winch and the rope-threading winch, respectively, on the current setting interface, thus achieving the setting of the current ranges that are respectively preset for the crane winch and for the rope-threading winch. Furthermore, due to variations in the structure, hydraulics, etc., among different crane winches and / or rope-threading winches, providing the current setting interface also facilitates the operator's adjustment of the currents for the rope-threading winches and the crane winches in practical applications.

[0036] It may be understood that boundary values of the current value range that is preset for the crane winch or the rope-threading winch correspond to maximum and minimum values of the reel-out speed of the crane winch or the reel-in speed of the rope-threading winch that can be withstood during the installation of the wire rope of the crane winch.

[0037] Still further, also in an example where the first operation-and-control component is a handle, the opening degree signal may be converted to a handle opening degree percentage. When the above correspondence exists in the current ranges that are respectively preset for the crane winch and for the rope-threading winch, based on the same opening degree signal (the opening degree signal of the first operation-and-control component), a current value assigned to the crane winch may be determined within the current value range that is preset for the crane winch and a current value assigned to the rope-threading winch may be determined within the current value range that is preset for the rope-threading winch, based on the following formula: wherein the maximum current and the minimum current in formula (1) and formula (2) refer to maximum and minimum values, respectively, in the preset current range. As can be seen, the current values assigned to the crane winch and the rope-threading winch are determined proportionally based on the opening degree signal of the handle, within the current ranges that are respectively preset for the crane winch and for the rope-threading winch. Therefore, on the basis that when the crane winch is controlled to perform the reel-out operation at a boundary value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform the reel-in operation at a corresponding boundary value of the current value range that is preset for the rope-threading winch, the reel-out speed of the crane winch is matched with the reel-in speed of the rope-threading winch, the current values determined proportionally for the crane winch and the rope-threading winch within the current ranges that are respectively preset for the crane winch and for the rope-threading winch can also ensure that the reel-out speed of the crane winch is matched with the reel-in speed of the rope-threading winch.

[0038] S120: controlling the crane winch to perform a reel-out operation and controlling the rope-threading winch to perform a reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch.

[0039] In this embodiment, the crane winch is controlled to perform the reel-out operation and the rope-threading winch is controlled to perform the reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch, wherein the current values assigned to the crane winch and the rope-threading winch can ensure that the reel-out speed of the crane winch is matched with the reel-in speed of the rope-threading winch. As a result, automatic installation of the wire rope of the crane winch is achieved, thereby avoiding the phenomenon of disorder in the wire rope of the crane winch or breakage of the wire rope of the rope-threading winch due to the uncertainty of manual operations when the speed of the rope-threading winch is not matched with that of the crane winch.

[0040] Fig. 6 is a specific process of controlling installation of a wire rope of a crane winch by applying a method for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention, in an example where the first operation-and-control component is a handle and the central control screen of the crane is provided with a current setting interface. As shown in Fig. 6, the process specifically includes the following steps: S200: presetting, through the central control screen, maximum and minimum currents for the crane winch, and maximum and minimum currents for the rope-threading winch corresponding to the maximum and minimum currents for the crane winch; S210: acquiring an opening degree signal of the handle, and converting the opening degree signal to an opening degree percentage of the handle; S220: determining, based on the opening degree percentage of the handle, a current value assigned to the crane winch between the maximum and minimum currents for the crane winch, and a current value assigned to the rope-threading winch between the maximum and minimum currents for the rope-threading winch; and S230: controlling the crane winch to perform the reel-out operation and controlling the rope-threading winch to perform the reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch.

[0041] It may be understood that when the speed of the rope-threading winch is not matched with that of the crane winch, it is prone to cause disorder in the wire rope of the crane winch or breakage of the wire rope of the rope-threading winch. Based on this, in order to improve the matching of the speeds of the crane winch and the rope-threading winch, after the crane winch is controlled to perform the reel-out operation and the rope-threading winch is controlled to perform the reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch, the matching of the reel-out speed of the crane winch and the reel-in speed of the rope-threading winch can be further determined by monitoring a tension of the wire rope of the crane winch or of the wire rope of the rope-threading winch during the installation of the wire rope of the crane winch.

[0042] That is, in an optional embodiment, after controlling the crane winch to perform the reel-out operation and controlling the rope-threading winch to perform the reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch, the method further includes: acquiring a reel-in tension of the rope-threading winch; determining whether the reel-in tension is within a preset reel-in tension range; and when the reel-in tension is out of the reel-in tension range, adjusting the current value that is assigned to the crane winch or triggering an alarm, wherein the alarm is used as a prompt to adjust the reel-out speed of the crane winch.

[0043] It is to be noted that ideally, the reel-in speed of the rope-threading winch is perfectly matched with the reel-out speed of the crane winch, but in practical applications, due to various factors, it is difficult to achieve perfect speed synchronization between the two. In this case, by presetting a reasonable reel-in tension range and then comparing the acquired reel-in tension of the rope-threading winch with the reel-in tension range, it can be determined whether the reel-in tension of the rope-threading winch is within the allowable tension range.

[0044] Further, when the reel-in tension is higher than an upper limit of the reel-in tension range, it indicates that the reel-in tension of the rope-threading winch is too large, i.e., the reel-out speed of the crane winch is less than the reel-in speed of the rope-threading winch; and when the reel-in tension is lower than a lower limit of the reel-in tension range, it indicates that the reel-in tension of the rope-threading winch is too small, i.e., the reel-out speed of the crane winch is greater than the reel-in speed of the rope-threading winch.

[0045] In this embodiment, the controller, after acquiring the reel-in tension of the rope-threading winch, first determines whether the reel-in tension is within the allowable range by comparing the reel-in tension with the preset reel-in tension range, and then, after determining that the reel-in tension is out of the allowable range of the reel-in tension, in one solution, automatically adjusts the current value assigned to the crane winch, i.e., when the reel-in tension is higher than the upper limit of the reel-in tension range, the current assigned to the crane winch is increased to accelerate the crane winch, and when the reel-in tension is lower than the lower limit of the reel-in tension range, the current assigned to the crane winch is decreased to decelerate the crane winch, thereby achieving the purpose of automatically adjusting the matching of the speeds of the crane winch and the rope-threading winch. In another solution, an alarm is triggered to prompt the operator, so that the operator adjusts the reel-out speed of the crane winch, thereby achieving the purpose of automatically adjusting the matching of the speeds of the crane winch and the rope-threading winch.

[0046] Based on the content of the above embodiment, in an optional embodiment, a second operation-and-control component configured to trigger adjustment of the reel-out speed of the crane winch is provided, to facilitate adjustment of the reel-out speed of the crane winch when the operator notices that the reel-out speed is not matched with the reel-in speed, or when the operate receives an alarm, i.e.: acquiring an opening degree signal of the second operation-and-control component, wherein the second operation-and-control component is configured to trigger adjustment of the reel-out speed of the crane winch; determining a current value to be reassigned to the crane winch based on the opening degree signal of the first operation-and-control component and the opening degree signal of the second operation-and-control component; and controlling the crane winch to perform the reel-out operation based on the current value to be reassigned to the crane winch.

[0047] Specifically, assuming that both the first operation-and-control component and the second operation-and-control component are handles, an operating structure including a handle 1 and a handle 2 as shown in Fig. 7 may be provided. To facilitate an increasing or decreasing adjustment of the current of the crane winch, the handle 2 is configured to have a handle opening degree of 0 when in a neutral position.

[0048] Based on this, during use, if it is found that the reel-out speed of the crane winch cannot match the reel-in speed of the rope-threading winch, or when an alarm is received, the current assigned to the crane winch may be adjusted by fine-tuning the handle 2, so as to increase or decrease the current assigned to the crane winch. For example, pushing the handle 2 in a positive direction results in a positive percentage of the handle 2, which increases the current assigned to the crane winch, and pushing the handle 2 in a negative direction results in a negative percentage of the handle 2, which decreases the current assigned to the crane winch.

[0049] In some optional embodiments, when the handle 2 is pushed, the controller determines the current value to be reassigned to the crane winch by using the following formula: wherein the coefficient is a number less than or equal to 1 and greater than 0. By setting the coefficient multiplied by the percentage of the handle 2, a speed of adjusting the reel-out speed of the crane winch can be increased when the coefficient is set larger, and the speed of adjusting the reel-out speed of the crane winch can be decreased when the coefficient is set smaller. This further enhances the flexibility of the method provided in the embodiments of the present invention in practical applications, to meet the needs of different users.

[0050] Further, when the opening degree percentage of the handle 2 is negative, the value of (percentage of handle 1 + percentage of handle 2 * coefficient) in formula (3) may also be negative, such that the current value to be reassigned to the crane winch calculated based on formula (3) is less than the minimum current of the crane winch. The minimum current of the crane winch is the lower limit value of the current value range that is preset for the crane winch. When the crane winch operates below the lower limit value of the preset current range, the reel-out speed of the crane winch is close to or equal to 0. At this point, if, after the handle 2 is pushed, the crane winch is controlled to perform the reel-out operation based on the current value to be reassigned to the crane winch calculated based on formula (3), the process of installing the wire rope of the crane winch is halted, thus affecting the efficiency of installing the wire rope of the crane winch.

[0051] Based on this, in an optional embodiment, for adjusting the reel-out speed of the crane winch based on operating the second maneuvering component, a limiting condition is added: determining whether the current value to be reassigned to the crane winch is less than a lower limit value of the current value range that is preset for the crane winch; and when the current value to be reassigned to the crane winch is less than the lower limit value, controlling the crane winch to perform the reel-out operation based on the lower limit value.

[0052] To improve the safety and reliability of installing the wire rope of the crane winch by applying the method for controlling installation of a wire rope of a crane winch provided in embodiments of the present invention, in an optional embodiment, the method further includes: determining whether the reel-in tension is greater than a preset maximum reel-in tension; and when the reel-in tension is greater than the maximum reel-in tension, controlling the rope-threading winch to stop the reel-in operation.

[0053] Specifically, the wire rope is a rope formed by twisting a plurality of wires according to a certain rule. Therefore, based on single wire load-bearing capacity of the wire rope of the rope-threading winch, a maximum tension that can be withstood by the entire wire rope can be determined.

[0054] In this embodiment, by determining whether the reel-in tension is greater than the maximum reel-in tension determined based on the single wire load-bearing capacity of the wire rope of the rope-threading winch, and prohibiting the rope-threading winch from performing the reel-in operation when the reel-in tension is greater than the maximum reel-in tension, the wire rope of the rope-threading winch can be prevented from breaking, i.e. the rope-threading winch can be protected, during the installation of the wire rope of the crane winch.

[0055] To further improve the safety and reliability during the installation of the wire rope of the crane winch, in an optional embodiment, the method further includes: restricting the crane winch from performing the reel-in operation and restricting the rope-threading winch from performing the reel-out operation during the installation of the wire rope of the crane winch.

[0056] In this embodiment, during the installation of the wire rope of the crane winch, prohibiting the crane winch from performing the reel-in operation can prevent the wire rope of the rope-threading winch from breaking due to misoperation, and prohibiting the rope-threading winch from performing the reel-out operation can prevent disorder in the wire rope of the rope-threading winch due to misoperation.

[0057] In summary, referring to Fig. 8, which illustrates a specific process of an example of installing a wire rope of a crane winch by applying the method for controlling installation of a wire rope of a crane winch provided in the above embodiments of the present invention, the process specifically includes the following steps: S300: presetting, through the central control screen of the crane, maximum and minimum currents assigned to the crane winch, and maximum and minimum currents assigned to the rope-threading winch; S310: acquiring an opening degree signal of a first operation-and-control component, and assigning currents to the rope-threading winch and the crane winch, respectively, in percentage-based proportions based on the opening degree of the first operation-and-control component; S320: controlling the crane winch to perform a reel-out operation and controlling the rope-threading winch to perform a reel-in operation based on the respective assigned currents, and then performing step 331 or 332; S331: acquiring a reel-in tension of the rope-threading winch, and then performing steps 341 and 342; S341: determining whether the reel-in tension is within a preset reel-in tension range; and if not, performing step 351 or 352; S342: determining whether the reel-in tension is greater than a preset maximum reel-in tension; and if so, performing step 360; S351: adjusting the current value that is assigned to the crane winch; S352: triggering an alarm, and then performing step 332; S332: acquiring an opening degree signal of a second operation-and-control component, and determining a current value to be reassigned to the crane winch based on the opening degree signal of the first operation-and-control component and the opening degree signal of the second operation-and-control component, and then performing step 370; S360: prohibiting the rope-threading winch from performing the reel-in operation; S370: determining whether the current value to be reassigned to the crane winch is less than a minimum current preset for the crane winch; and if so, performing step 381; or if not, performing step 382; S381: controlling the crane winch to perform the reel-out operation based on the minimum current preset for the crane winch; and S382: controlling the crane winch to perform the reel-out operation based on the current value to be reassigned to the crane winch.

[0058] Specifically, as shown in Fig. 5, the maximum and minimum currents assigned to the rope-threading winch preset on the central control screen are respectively 300 mA and 200 mA, and the maximum and minimum currents assigned to the crane winch are respectively 400 mA and 200 mA. Assuming that the acquired opening degree signal of the first operation-and-control component is 50%, the currents assigned to the rope-threading winch and the crane winch are determined to be 250 mA and 300 mA, respectively. Then, based on the currents of 350 mA and 300 mA, respectively, the rope-threading winch is controlled to perform the reel-in operation, and the crane winch is controlled to perform the reel-out operation, and during the reel-in operation of the rope-threading winch and the reel-out operation of the crane winch, the process of installing the wire rope of the crane winch can be further controlled by a combination of any one or more of the following control strategies: 1. acquiring a reel-in tension of the rope-threading winch, and when it is determined that the reel-in tension is out of a preset reel-in tension range, automatically adjusting the current value that is assigned to the crane winch based on a relationship between the reel-in tension and the preset reel-in tension range; 2. acquiring a reel-in tension of the rope-threading winch, and when it is determined that the reel-in tension is out of a preset reel-in tension range, triggering an alarm to prompt the operator to fine-tune the reel-out speed of the crane winch by operating the second operation-and-control component; 3. acquiring a reel-in tension of the rope-threading winch, and when it is determined that the reel-in tension is greater than a preset maximum reel-in tension, controlling the rope-threading winch to stop the reel-in operation; and 4. acquiring an opening degree signal generated by operating the second operation-and-control component by the operator, and when it is determined that the current value to be reassigned to the crane winch determined based on the opening degree signal of the first operation-and-control component and the opening degree signal of the second operation-and-control component is less than 200 mA, controlling the crane winch to perform the reel-out operation with 200 mA; and when it is determined that the current value to be reassigned to the crane winch is not less than 200 mA, controlling the crane winch to perform the reel-out operation based on the reassigned current value.

[0059] In the method for controlling installation of a wire rope of a crane winch provided in the embodiment of the present invention, during the process of controlling the reel-in operation of the rope-threading winch to pull the crane winch to perform the reel-out operation, the opening degree of the first operation-and-control component is correlated with the currents of the rope-threading winch and the crane winch, and the current ranges that enable the reel-out speed to be matched with the reel-in speed are preset for the rope-threading winch and the crane winch, thus achieving the installation of the wire rope of the crane winch where the speeds of the crane winch and the rope-threading winch are directly matched by operating the first operation-and-control component. Furthermore, the opening degree of the second operation-and-control component is correlated with the current of the crane winch, such that when the operator believes that the speed of the rope-threading winch is not matched with the crane winch, or when the controller monitors that the reel-in tension of the rope-threading winch is not within the allowable tension range, the reel-out speed of the crane winch can be fine-tuned in real time by operating the second operation-and-control component, thus improving the safety and reliability of the installation process of the wire rope of the crane winch.

[0060] A system for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention is described below. The system for controlling installation of a wire rope of a crane winch described below may be considered as a modular architecture for implementing a method for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention. The following description may be cross-referenced with the preceding description.

[0061] Optionally, referring to Fig. 9, which is a structural block diagram of a system for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention, the system may include: a first operation-and-control component 10 configured to trigger the installation of the wire rope of the crane winch; and a main control module 20 configured to acquire an opening degree signal of the first operation-and-control component, determine, based on the opening degree signal of the first operation-and-control component, a current value assigned to the crane winch within a current value range that is preset for the crane winch and a current value assigned to a rope-threading winch within a current value range that is preset for the rope-threading winch, and control the crane winch to perform a reel-out operation and the rope-threading winch to perform a reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch, wherein, when the crane winch is controlled to perform the reel-out operation at a boundary value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform the reel-in operation at a corresponding boundary value of the current value range that is preset for the rope-threading winch, a reel-out speed of the crane winch is matched with a reel-in speed of the rope-threading winch.

[0062] Optionally, referring to Fig. 10, which shows a structural block diagram of another system for controlling installation of a wire rope of a crane winch provided in an embodiment of the present invention, based on the embodiment shown in Fig. 9, the system further includes: a second operation-and-control component 30 configured to trigger adjustment of the reel-out speed of the crane winch, wherein the main control module 20 is further configured to acquire an opening degree signal of the second operation-and-control component, determine a current value to be reassigned to the crane winch based on the opening degree signal of the first operation-and-control component and the opening degree signal of the second operation-and-control component, and control the crane winch to perform the reel-out operation based on the current value to be reassigned to the crane winch.

[0063] Optionally, referring to Fig. 10, the system further includes: a display module 40 for inputting and modifying the current value ranges that are respectively preset for the crane winch and for the rope-threading winch.

[0064] Optionally, the main control module 20 is specifically configured to: acquire a reel-in tension of the rope-threading winch; determine whether the reel-in tension is within a preset reel-in tension range; and when the reel-in tension is out of the reel-in tension range, adjust the current value assigned to the crane winch or trigger an alarm, wherein the alarm is used as a prompt to adjust the reel-out speed of the crane winch.

[0065] Optionally, the main control module 20 is specifically configured to: acquire an opening degree signal of the second operation-and-control component, wherein the second operation-and-control component is configured to trigger adjustment of the reel-out speed of the crane winch; determine a current value to be reassigned to the crane winch based on the opening degree signal of the first operation-and-control component and the opening degree signal of the second operation-and-control component; and control the crane winch to perform the reel-out operation based on the current value to be reassigned to the crane winch.

[0066] Optionally, the main control module 20 is specifically configured to: determine whether the current value to be reassigned to the crane winch is less than a lower limit value of the current value range that is preset for the crane winch; and when the current value to be reassigned to the crane winch is less than the lower limit value, control the crane winch to perform the reel-out operation based on the lower limit value.

[0067] Optionally, the main control module 20 is specifically configured to: determine whether the reel-in tension is greater than a preset maximum reel-in tension; and when the reel-in tension is greater than the maximum reel-in tension, control the rope-threading winch to stop the reel-in operation, wherein the maximum reel-in tension is determined based on single wire load-bearing capacity of a wire rope of the rope-threading winch.

[0068] Optionally, the main control module 20 is specifically configured to: restrict the crane winch from performing the reel-in operation and restrict the rope-threading winch from performing the reel-out operation during the installation of the wire rope of the crane winch.

[0069] Optionally, an embodiment of the present invention further provides a crane including a crane body and the system for controlling installation of a wire rope of a crane winch provided in any of the above embodiments.

[0070] Below, an electronic device provided in an embodiment of the present application is described with reference to Fig. 11. The electronic device provided in this embodiment may include: at least one processor 100, at least one communication interface 200, at least one memory 300, and at least one communication bus 400.

[0071] In the embodiment of the present invention, the numbers of the processor 100, the communication interface 200, the memory 300, and the communication bus 400 are each at least one, and the processor 100, the communication interface 200, and the memory 300 communicate with each other via the communication bus 400. Evidently, the schematic of the communication connection among the processor 100, the communication interface 200, the memory 300, and the communication bus 400 illustrated in Fig. 11 is merely optional.

[0072] Optionally, the communication interface 200 may be an interface of a communication module, such as an interface of a GSM module. The processor 100 may be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present invention.

[0073] The memory 300 may include a high speed random access memory (RAM), and may also include a non-volatile memory, such as at least one magnetic disk memory.

[0074] The processor 100 is specifically configured to execute an application program within the memory to implement the steps of the method for controlling installation of a wire rope of a crane winch described above.

[0075] Basic principles of the present application are described above in conjunction with specific embodiments. However, it is to be noted that the advantages, strengths, effects, and the like mentioned in the present application are only examples and not limitations, and these advantages, strengths, effects, and the like should not be regarded as indispensable for the embodiments of the present application. In addition, the specific details in the above disclosure are only for the purposes of exemplification and ease of understanding, and are not limiting. The above details do not constrain the present application to be necessarily implemented with the above specific details.

[0076] Block diagrams of devices, apparatuses, equipment, and systems involved in the present application are only used as illustrative examples and are not intended to require or imply that they are necessarily connected, arranged, or configured in the manner illustrated in the block diagrams. As will be recognized by those skilled in the art, these devices, apparatuses, equipment, and systems may be connected, arranged, or configured in any manner. Words such as "include", "comprise", "have", etc. are open-ended terms, meaning "include but not limited to", and may be used interchangeably. The words "or" and "and" as used herein refer to the words "and / or", and may be used interchangeably therewith unless the context clearly indicates otherwise. The word "such as" as used herein refers to the phrase "such as, but not limited to", and may be used interchangeably therewith.

[0077] It is also to be noted that in the apparatuses, equipment, and methods of the present application, the components or steps are decomposable and / or recombinable. These decompositions and / or recombinations should be considered as equivalents of the present application.

[0078] The above description of the disclosed aspects is provided to enable any person skilled in the art to carry out or use the present application. Various modifications to these aspects are very apparent to those skilled in the art, and general principles defined herein may be applied to other aspects without departing from the scope of the present application. Accordingly, the present application is not intended to be limited to the aspects illustrated herein, but should be accorded with the broadest interpretation consistent with the principles and novel features disclosed herein.

[0079] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are merely used to more clearly elaborate the technical solutions and are not intended to limit the scope of protection of the present application.

[0080] The above description has been made for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a plurality of example aspects and embodiments have been discussed above, certain variations, modifications, changes, additions, and sub-combinations thereof would occur to those skilled in the art.

Claims

1. A method for controlling installation of a wire rope of a crane winch, comprising: acquiring an opening degree signal of a first operation-and-control component, wherein the first operation-and-control component is configured to trigger the installation of the wire rope of the crane winch; determining, based on the opening degree signal of the first operation-and-control component, a current value assigned to the crane winch within a current value range that is preset for the crane winch and a current value assigned to a rope-threading winch within a current value range that is preset for the rope-threading winch, wherein, when the crane winch is controlled to perform a reel-out operation at a boundary value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform a reel-in operation at a corresponding boundary value of the current value range that is preset for the rope-threading winch, a reel-out speed of the crane winch is matched with a reel-in speed of the rope-threading winch; and controlling the crane winch to perform the reel-out operation and controlling the rope-threading winch to perform the reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch.

2. The method according to claim 1, wherein, after controlling the crane winch to perform the reel-out operation and controlling the rope-threading winch to perform the reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch, the method further comprises: acquiring a reel-in tension of the rope-threading winch; determining whether the reel-in tension is within a preset reel-in tension range; and when the reel-in tension is out of the reel-in tension range, adjusting the current value that is assigned to the crane winch or triggering an alarm, wherein the alarm is used as a prompt to adjust the reel-out speed of the crane winch.

3. The method according to claim 1 or 2, further comprising: acquiring an opening degree signal of a second operation-and-control component, wherein the second operation-and-control component is configured to trigger adjustment of the reel-out speed of the crane winch; determining a current value to be reassigned to the crane winch based on the opening degree signal of the first operation-and-control component and the opening degree signal of the second operation-and-control component; and controlling the crane winch to perform the reel-out operation based on the current value to be reassigned to the crane winch.

4. The method according to claim 3, further comprising: determining whether the current value to be reassigned to the crane winch is less than a lower limit value of the current value range that is preset for the crane winch; and when the current value to be reassigned to the crane winch is less than the lower limit value, controlling the crane winch to perform the reel-out operation based on the lower limit value.

5. The method according to claim 2, further comprising: determining whether the reel-in tension is greater than a preset maximum reel-in tension; and when the reel-in tension is greater than the maximum reel-in tension, controlling the rope-threading winch to stop the reel-in operation, wherein the maximum reel-in tension is determined based on single wire load-bearing capacity of a wire rope of the rope-threading winch.

6. The method according to claim 1, further comprising: restricting the crane winch from performing the reel-in operation and restricting the rope-threading winch from performing the reel-out operation during the installation of the wire rope of the crane winch.

7. A system for controlling installation of a wire rope of a crane winch, comprising: a first operation-and-control component configured to trigger the installation of the wire rope of the crane winch; and a main control module configured to acquire an opening degree signal of the first operation-and-control component, determine, based on the opening degree signal of the first operation-and-control component, a current value assigned to the crane winch within a current value range that is preset for the crane winch and a current value assigned to a rope-threading winch within a current value range that is preset for the rope-threading winch, and control the crane winch to perform a reel-out operation and control the rope-threading winch to perform a reel-in operation based on the respective current values assigned to the crane winch and the rope-threading winch, wherein, when the crane winch is controlled to perform the reel-out operation at a boundary value of the current value range that is preset for the crane winch and the rope-threading winch is controlled to perform the reel-in operation at a corresponding boundary value of the current value range that is preset for the rope-threading winch, a reel-out speed of the crane winch is matched with a reel-in speed of the rope-threading winch.

8. The system according to claim 7, further comprising: a second operation-and-control component configured to trigger adjustment of the reel-out speed of the crane winch, wherein the main control module is further configured to acquire an opening degree signal of the second operation-and-control component, determine a current value to be reassigned to the crane winch based on the opening degree signal of the first operation-and-control component and the opening degree signal of the second operation-and-control component, and control the crane winch to perform the reel-out operation based on the current value to be reassigned to the crane winch.

9. The system according to claim 7, further comprising: a display module configured for inputting and modifying the current value ranges that are respectively preset for the crane winch and for the rope-threading winch.

10. A crane, comprising a crane body and the system for controlling installation of a wire rope of a crane winch according to any one of claims 7 to 9.

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