Overlifting devices and lifting equipment for lifting equipment

Abstract

This invention belongs to the technical field of lifting equipment, specifically relating to a superlift device and lifting equipment for lifting equipment. The lifting equipment includes a lifting boom, and the superlift device includes: two masts at the same height, one end of each mast being hinged via a first connector and rotatably mounted on the lifting boom, and the other end being a free end capable of relative swinging; a cross rope, the first end of which is connected to either mast; and a telescopic drive mechanism, one end of which is connected to the other mast, and the other end of which is connected to the second end of the cross rope. The telescopic drive mechanism is capable of linear telescopic movement to apply a release force or a tension force to the cross rope. Using the above-mentioned superlift device, the release or tension of the cross rope can be controlled by controlling the telescopic drive mechanism. The mast angle adjustment is convenient, improving the control efficiency of the superlift device and the construction efficiency of the lifting equipment.

Description

Technical Field

[0001] This invention belongs to the field of lifting equipment technology, specifically relating to a super-lifting device and lifting equipment for lifting equipment. Background Technology

[0002] Cranes are equipped with superlift devices to improve the strength and rigidity of the crane boom and enhance its lifting performance. For superlifts of superlift cranes with a tonnage of over 1,000 tons, the superlift structure experiences significant stress and deformation during operation due to its own weight and the tension of the wire ropes.

[0003] Most existing truck cranes have superlift devices equipped with two masts. The ends of the masts are connected to the middle of the lifting wall, and lifting wire ropes are attached to the ends of the masts to assist the lifting boom in lifting operations. In superlift operation, the reliability of the mast's swing is extremely important. If the swing fails, the tie ropes can prevent mast deformation and avoid the risk of lateral collapse. However, in existing technology, adjusting the mast angle requires stopping the lifting operation and retracting the mast. Then, manual high-altitude work is needed to adjust and lock the working length of the tie ropes when they are taut, resulting in low construction efficiency and cumbersome operation. Summary of the Invention

[0004] The purpose of this invention is to provide a super-lifting device and lifting equipment to solve the technical problem of difficulty in adjusting the length of the cross rope in the prior art.

[0005] To achieve the above objectives, the present invention provides a super-lifting device for lifting equipment, the lifting equipment including a lifting boom, and the super-lifting device comprising:

[0006] Two masts, both masts are at the same height, one end of each mast is hinged by a first connector and can be rotatably mounted on the boom, and the other end is a free end and can swing relative to each other;

[0007] The first end of the horizontal guy rope is connected to any mast.

[0008] The telescopic drive mechanism has one end connected to another mast and the other end connected to the second end of the horizontal tie rope. The telescopic drive mechanism can perform linear telescopic motion to apply a release force or a tension force to the horizontal tie rope.

[0009] In some embodiments, the lifting device further includes: a detection module, mounted on the telescopic drive mechanism and used to detect the extension length of the telescopic drive mechanism and send an extension length signal; and a control module, communicatively connected to the detection module and configured to determine whether the telescopic drive mechanism has extended or retracted to the correct position based on the extension length signal, and control the telescopic drive mechanism to stop operating after reaching the correct position.

[0010] In some embodiments, the telescopic drive mechanism is a horizontal pull cylinder, which is connected to the hydraulic circuit of the lifting equipment. One of the fixed end and the telescopic end of the horizontal pull cylinder is installed on the mast, and the other is connected to the second end of the horizontal pull rope.

[0011] In some embodiments, the lifting device further includes a connecting rod, which is connected to the telescopic rod of the horizontal pull cylinder via a second connecting member. The detection module includes: a detection element, disposed on the connecting rod and located outside the cylinder body of the horizontal pull cylinder; and a sensing element, which senses and cooperates with the detection element. There are multiple sensing elements, which are disposed on the outer periphery of the horizontal pull cylinder and arranged parallel to each other along the length direction of the horizontal pull cylinder.

[0012] In some embodiments, the lifting boom is provided with a hinge portion that is hinged to the ends of two masts, and the opposite sides of the masts are provided with mounting portions. The super-lifting device also includes: two linear drive members, which are provided one-to-one with the two masts. One end of the linear drive member is hinged to the hinge portion, and the other end of the linear drive member is hinged to the mounting portion and used to drive the mast to swing.

[0013] In some implementations, the linear drive is communicatively connected to a control module, which is further configured to: acquire the target lifting capacity of the lifting equipment; control the telescopic drive mechanism to apply a release force to the tie rope to release it; determine the target swing angle of the mast based on the target lifting capacity; control the linear drive to drive the mast to swing to the target swing angle; and control the telescopic drive mechanism to apply a tension force to the tie rope to lock it.

[0014] In some implementations, the control module is further configured to: after locking the tie rope, acquire the elongation length of the tie rope; determine the current swing angle of the mast based on the elongation length; if the absolute value of the difference between the current swing angle and the target swing angle is greater than a preset difference, control the telescopic drive mechanism to apply a release force to release the tie rope; and readjust the swing angle of the mast until the absolute value of the difference between the current swing angle and the target swing angle is less than or equal to the preset difference.

[0015] In some embodiments, a row of storage components is provided on the opposite sides of the two masts. The storage components include multiple storage parts arranged parallel to each other along the axial direction of the masts. The storage parts are used to store the horizontal rope when the two masts are parallel.

[0016] In some implementations, multiple storage components in each storage assembly form a storage channel with the corresponding mast. When the two masts are parallel, the horizontal rope passes through the two storage channels in sequence and connects to the mast.

[0017] A second aspect of the present invention provides a lifting device, including a lifting arm and the above-described super-lifting device for lifting devices.

[0018] In the aforementioned technical solution, the superlift device includes two masts, a crossbar, and a telescopic drive mechanism. The masts of the superlift device are connected to the wire ropes of the lifting boom, which can reduce the stress deformation of the lifting boom. One end of the mast is hinged and rotatably mounted on the lifting wall via a first connector, and the other end of the mast can swing relative to it. Both ends of the crossbar are connected to the masts respectively. In the event of failure of any one mast, the crossbar can pull the failed mast through the other mast to prevent the mast from tipping over. One end of the telescopic drive mechanism of this application is connected to any one of the masts, and the other end of the telescopic drive mechanism is connected to the second end of the crossbar. By controlling the extension and retraction of the telescopic drive mechanism, the extension length of the crossbar can be adjusted, and a release force or a tension force can be applied to the crossbar. Using the aforementioned lifting device, when the mast's swing angle changes, the telescopic drive mechanism can be controlled to apply a release force, facilitating the mast's swing. After the mast swing is complete, the telescopic drive mechanism can apply tension to the cross rope, thereby tightening the two masts through the cross rope and the telescopic drive mechanism. This simplifies the mast angle adjustment process and improves construction efficiency.

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

[0020] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. Those skilled in the art can obtain other drawings based on the structures shown in these drawings without any inventive effort. In the drawings:

[0021] Figure 1 This is a top view schematic diagram of the mast being deployed according to an embodiment of the present invention;

[0022] Figure 2 This is a top view of the mast when it is closed, according to an embodiment of the present invention.

[0023] Figure 3 This is a partial schematic diagram of the super-lift device provided according to an embodiment of the present invention in a first state;

[0024] Figure 4 This is a partial schematic diagram of the super-lift device provided according to an embodiment of the present invention in a second state;

[0025] Figure 5 This is a partial schematic diagram of the super-starting device provided according to an embodiment of the present invention in a fourth state.

[0026] Explanation of reference numerals in the attached figures

[0027] 10 masts

[0028] 20 horizontal ropes

[0029] 30 Telescopic drive mechanism

[0030] 41 Inspection Items

[0031] 42. Sensors

[0032] 50 connecting rod

[0033] 60 Second connector

[0034] 70 Linear Drive Components

[0035] 81 Storage Items

[0036] 90 Hinged section Detailed Implementation

[0037] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0038] The following description, with reference to the accompanying drawings, describes a super-lifting device and a lifting device for lifting equipment according to the present invention. For example... Figure 1 The image shown is a top view of the mast 10 when it is deployed according to an embodiment of the present invention; as shown Figure 2 The figure shown is a top view of the mast 10 when closed according to an embodiment of the present invention. The lifting equipment of this application includes a lifting boom (not shown in the figure), and the superlift device includes:

[0039] Two masts 10 are at the same height. One end of each mast 10 is hinged to the first connector (not shown in the figure) and can be rotatably mounted on the boom. The other end is a free end and can swing relative to each other.

[0040] A horizontal rope 20, the first end of which is connected to any one of the masts 10;

[0041] The telescopic drive mechanism 30 has one end connected to another mast 10 and the other end connected to the second end of the horizontal pull rope 20. The telescopic drive mechanism 30 is capable of linear telescopic movement to apply a release force or a tension force to the horizontal pull rope 20.

[0042] The super-lift device of the present invention includes two masts 10, a crossbeam rope 20, and a telescopic drive mechanism 30. The masts 10 on the lifting arm can be connected to the wire rope of the lifting arm to reduce stress deformation of the lifting arm when lifting heavy objects. One end of the mast 10 is rotatably mounted on the lifting arm via a first connector, and the other end of the mast 10 is a free end that can swing relative to the other end. The first connector can be a pin. Different lifting weights require different swing angles for the masts 10; the larger the lifting weight, the larger the angle between the two masts 10. The two ends of the crossbeam rope 20 are respectively connected to the two masts 10, and the crossbeam rope 20 can prevent the risk of collapse caused by the failure of the masts 10 to rotate. Optionally, the crossbeam rope 20 is made of steel wire. However, in the existing technology, the angle of the mast 10 is different under different lifting capacities. When the lifting equipment is in operation, the horizontal tie rope 20 needs to be kept taut. Therefore, when it is necessary to adjust the angle of the mast 10, it is mostly necessary to manually adjust the working length of the horizontal tie rope 20 when it is taut. The adjustment process is cumbersome and reduces construction efficiency.

[0043] The super-lift device of the present invention includes a telescopic drive mechanism 30. A first end of a horizontal tie rope 20 is connected to a mast 10, a second end of the horizontal tie rope 20 is connected to the telescopic drive mechanism 30, and the other end of the telescopic drive mechanism 30 is connected to the mast 10. The telescopic drive mechanism 30 can control the release or tension of the horizontal tie rope 20. When it is necessary to adjust the swing angle of the mast 10, the telescopic drive mechanism 30 can be controlled to release the horizontal tie rope 20 to facilitate the adjustment of the mast 10's swing angle. After the mast 10's swing angle is adjusted, the telescopic drive mechanism 30 applies a tension force to the horizontal tie rope 20 to keep the horizontal tie rope 20 taut, preventing the mast 10 from capsizing due to swing failure.

[0044] By using the aforementioned lifting device, the release or tension of the horizontal tie rope 20 can be controlled by controlling the telescopic drive mechanism 30. The angle of the mast 10 is easy to adjust, and there is no need for manual high-altitude operations to adjust the working length of the horizontal tie rope 20 when it is tensioned, thus improving construction efficiency.

[0045] In one embodiment, the super-lift device further includes: a detection module (not shown in the figure), mounted on the telescopic drive mechanism 30 and used to detect the extension length of the telescopic drive mechanism 30 and send an extension length signal; and a control module (not shown in the figure), communicatively connected to the detection module and configured to determine whether the telescopic drive mechanism 30 has fully extended or retracted based on the extension length signal, and control the telescopic drive mechanism 30 to stop operating after reaching the desired position. The super-lift device also includes a detection module for detecting the length of the horizontal tie rope 20. The detection module is mounted on the telescopic drive mechanism 30, capable of detecting the extension length of the telescopic drive mechanism 30 and sending a length signal to the control module. The control module can determine whether the telescopic drive mechanism 30 has fully extended or retracted based on the length signal. When fully extended or retracted, the control module controls the telescopic drive mechanism 30 to stop operating. Using the above-mentioned detection module and control module, the extension length of the telescopic drive mechanism 30 can be precisely adjusted, preventing insufficient extension or retraction from causing tension failure of the horizontal tie rope 30 and preventing the mast 10 from failing to swing to the target swing angle.

[0046] In one embodiment, the telescopic drive mechanism 30 is a horizontal pull cylinder, which is connected to the hydraulic circuit of the lifting equipment. One of the fixed end and the telescopic end of the horizontal pull cylinder is mounted on the mast 10, and the other end is connected to the second end of the horizontal pull rope 20. The telescopic drive mechanism 30 is a horizontal pull cylinder, with one end connected to the second end of the horizontal pull rope 20 and the other end connected to the mast 10. The telescopic movement of the horizontal pull cylinder can release or tighten the horizontal pull rope 20. When the horizontal pull cylinder tightens the horizontal pull rope 20, it can prevent the mast 10 from swinging and causing a tipping accident; when the horizontal pull cylinder releases the horizontal pull rope 20, it facilitates the swinging of the mast 10.

[0047] In one embodiment, such as Figure 3 The diagram shown is a partial schematic of the super-lift device provided according to an embodiment of the present invention in a first state; as shown Figure 4 The diagram shown is a partial schematic of the super-lift device provided according to an embodiment of the present invention in a second state; as shown Figure 5The diagram shows a partial schematic of the super-lift device provided according to an embodiment of the present invention in a fourth state. The mast 10 has different swing angles and the extension lengths of the horizontal tie rope 20 in the first, second, and third states. The super-lift device also includes a connecting rod 50, which is movably connected to the telescopic rod of the horizontal tie cylinder via a second connecting member 60. The detection module includes: a detection element 41, disposed on the connecting rod 50 and located outside the cylinder body of the horizontal tie cylinder; and a sensing element 42, which senses the detection element 41. Multiple sensing elements 42 are disposed on the outer periphery of the horizontal tie cylinder and arranged parallel to each other along the length direction of the cylinder. The super-lift device also includes a connecting rod 50, which is movably connected to the telescopic rod of the horizontal tie cylinder via a second connecting member 60. When the horizontal tie cylinder reciprocates, the connecting rod 50 can reciprocate along with the telescopic rod. The detection element 41 provided in this embodiment of the present invention is disposed on the connecting rod 50 and located outside the cylinder body, and can sense the sensing element 42 on the cylinder body. Multiple sensors 42 are arranged parallel to each other along the length of the horizontal extension cylinder. When the horizontal extension cylinder extends or retracts, it drives the detection element 41 to move linearly along the outside of the cylinder body and pass by the detection element 42. When the detection element 41 detects the sensor 42, it can determine the extension length of the horizontal extension cylinder and send a length signal to the control module, so that the control module can determine the swing angle of the mast 10 based on the extension length. Using the above-mentioned detection module, the swing angle of the mast 10 can be monitored at a relatively low cost. The structure is simple, the detection results are accurate, and maintenance is convenient.

[0048] In one specific embodiment, the detection element 41 is a proximity switch, and the sensing element 42 is a plurality of sensing strips. The sensing strips can contact and cooperate with the proximity switch when the horizontal hydraulic cylinder moves in extension and retraction. After the proximity switch contacts the sensing strip, it can send a signal to the control module. The control module can determine the swing angle of the mast 10 based on the signal sent by the proximity switch.

[0049] In one embodiment, such as Figure 1 As shown, the lifting boom is provided with hinged portions 90 that are hinged to the ends of two masts 10. Mounting portions are provided on the opposite sides of the masts 10. The superlift device also includes two linear drive members 70, each corresponding to one of the two masts 10. One end of each linear drive member 70 is hinged to the hinged portion 90, and the other end is hinged to the mounting portion and used to drive the masts 10 to swing. The linear drive members 70 are arranged one-to-one with the masts 10, and the linear drive can drive the free end of the mast 10 to swing around the lifting boom to adapt to different lifting capacity requirements. Compared to using a rotary drive to drive the masts 10 to swing, the linear drive members 70 extending or shortening to pull the masts 10 to swing is more reliable and has lower energy loss. The masts 10, linear drive members 70, and hinged portions 90 form a planar triangular structure, making the swing of the masts 10 more stable.

[0050] In one specific embodiment, the linear drive 70 is a hydraulic cylinder. Hydraulic cylinders have the advantages of high stability and high driving power, making them suitable as the drive for the mast 10 to swing. Furthermore, the hydraulic energy of the hydraulic cylinder can be directly obtained from the lifting equipment, making energy transmission convenient.

[0051] In one embodiment, the linear drive 70 is communicatively connected to a control module, which is further configured to: acquire the target lifting capacity of the lifting equipment; control the telescopic drive mechanism 30 to apply a release force to the tie rope 20 to release the tie rope 20; determine the target swing angle of the mast 10 based on the target lifting capacity; control the linear drive 70 to drive the mast 10 to swing to the target swing angle; and control the telescopic drive mechanism 30 to apply a tension force to the tie rope 20 to lock the tie rope 20. When adjustments to the swing angle of the mast 10 are required, the control module can first acquire the target lifting capacity of the lifting equipment. Based on the target lifting capacity, the control module can determine the target swing angle of the mast 10. The control module can control the telescopic drive mechanism 30 to apply a release force to the tie rope 20 so that the mast 10 can swing smoothly. The control module can also control the linear drive 70 to swing so that the swing angle of the mast 10 reaches the target swing angle. Subsequently, the control module can control the telescopic drive mechanism 30 to apply a tension force to the tie rope 20 to prevent a tipping accident in case of a mast 10 malfunction. Using the aforementioned control device, the control module can control the linear drive component 70 and the telescopic drive mechanism 30 to automatically release or tighten the horizontal tie rope 20 and adjust the swing angle of the mast 10. The control logic is simple, the control efficiency is high, and the construction efficiency is improved.

[0052] In one embodiment, after locking the tie rope 20, the extension length of the telescopic drive mechanism 30 is obtained; the current swing angle of the mast 10 is determined based on the extension length; if the absolute value of the difference between the current swing angle and the target swing angle is greater than a preset difference, the telescopic drive mechanism 30 is controlled to apply a release force to release the tie rope 20; the swing angle of the mast 10 is readjusted until the absolute value of the difference between the current swing angle and the target swing angle is less than or equal to the preset difference. After the tie rope 20 is tightened, the detection module can detect the extension length of the telescopic drive mechanism 30 and send a length signal to the control module. After obtaining the length signal, the control module can determine the current swing angle of the mast 10. If the difference between the current swing angle and the target swing angle is greater than the preset difference, it is determined that the swing angle of the mast 10 is significantly different from the target swing angle, and the controller can control the telescopic drive mechanism 30 to apply a release force to release the tie rope 20. Subsequently, the controller readjusts the swing angle of the mast 10 until the absolute value of the difference between the current swing angle and the target swing angle is less than or equal to the preset difference. The control module is configured with the control method described above, which can accurately match the swing angle of the mast 10 with the actual lifting capacity, preventing the lifting capacity from exceeding the actual maximum lifting capacity, thereby causing stress damage to the crane boom and resulting in an accident.

[0053] In one embodiment, such as Figure 2 As shown, each of the two masts 10 has a row of storage components on its opposite sides. Each storage component includes multiple storage members 81 arranged parallel to each other along the axial direction of the masts 10. The storage members 81 are used to store the horizontal guy rope 20 when the two masts 10 are parallel. When the two masts 10 are parallel, the super-lift device is in standby mode, and the horizontal guy rope 20 is not taut. The super-lift device of this application has storage components on the opposite sides of the two masts 10, with each row of storage components forming a storage channel. At this time, one end of the horizontal guy rope 20 is connected to one of the masts 10, and the other end is connected to the other mast 10 sequentially through two storage channels. This prevents the horizontal guy rope 20 from swinging arbitrarily when the super-lift device is parallel, thus preventing interference with other components. When the super-lift device is in operation, the horizontal guy rope 20 disengages from the storage components and is taut between the two masts 10. The storage assembly provided in this embodiment of the invention includes multiple storage components 81 arranged parallel to each other along the axial direction of the mast 10. The storage components 81 can fix the horizontal guy rope 20 at multiple points on the side wall of the mast 10 to prevent the horizontal guy rope 20 from accidentally detaching. Using the above-described super-lifting device, the horizontal guy rope 20 in a non-working state can be stored, preventing the horizontal guy rope 20 from interfering with other components of the lifting equipment.

[0054] Specifically, such as Figure 2 As shown, multiple storage components 81 in each storage assembly form a storage channel (not shown in the figure) with the corresponding mast 10. When the two masts 10 are parallel, the horizontal rope 20 passes through the two storage channels in sequence and connects to the mast 10. The multiple storage components 81 in each storage assembly form a storage channel, through which the horizontal rope 20 can pass and connect to the mast 10. Using the above-mentioned storage assembly, the horizontal rope 20 can be stored more stably, preventing the horizontal rope 20 from accidentally detaching from the storage channel.

[0055] In one embodiment, the telescopic drive mechanism 30 is any one of a winch mechanism, a cylinder, and an electric cylinder. The winch mechanism, cylinder, or electric cylinder can also be used to tighten or loosen the tie rope 20 to facilitate adjustment of the angle of the mast 10.

[0056] Using the aforementioned super-lift device, when it is necessary to adjust the swing angle of the two masts 10, the horizontal tie rope 20 can be tightened or loosened relatively easily to adjust the angle of the masts 10 of the super-lift device. Furthermore, when the current swing angle of the masts 10 is inconsistent with the target swing angle, the angle of the masts 10 can be automatically adjusted to make the swing of the masts 10 more precise. Compared with existing super-lift devices, the technical solution provided by this embodiment of the invention offers more convenient and precise adjustment of the mast 10 angle and the extension length adjustment of the telescopic drive mechanism 30, improving construction efficiency and reducing the probability of construction accidents.

[0057] In one embodiment, a lifting device is provided, including a lifting boom and the aforementioned super-lifting device for the lifting device.

[0058] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A super-lifting device for lifting equipment, characterized in that, The lifting equipment includes a lifting boom, and the super-lift device includes: Two masts (10) are at the same height. One end of each mast (10) is hinged to the first connector and can be rotatably mounted on the boom. The other end is a free end and can swing relative to each other. A horizontal pull rope (20), the first end of which is connected to any one of the masts (10); Telescopic drive mechanism (30), one end of which is connected to another mast (10), and the other end of which is connected to the second end of the horizontal pull rope (20). The telescopic drive mechanism (30) is capable of linear telescopic movement to apply a release force or a tension force to the horizontal pull rope (20). The detection module is installed on the telescopic drive mechanism (30) and is used to detect the extension length of the telescopic drive mechanism (30) and send an extension length signal; The control module is communicatively connected to the detection module and is configured to determine whether the telescopic drive mechanism (30) has extended or retracted to the correct position based on the extension length signal, and control the telescopic drive mechanism (30) to stop operating after it has reached the correct position. The control module is also configured to: Obtain the target lifting capacity of the lifting equipment; The target swing angle of the mast (10) is determined based on the target lifting capacity; After locking the horizontal pull rope (20), obtain the extension length of the telescopic drive mechanism (30); The current swing angle of the mast (10) is determined based on the elongation length; If the absolute value of the difference between the current swing angle and the target swing angle is greater than a preset difference, the telescopic drive mechanism (30) is controlled to apply a release force to release the horizontal pull rope (20). The swing angle of the mast (10) is readjusted until the absolute value of the difference between the current swing angle and the target swing angle is less than or equal to the preset difference.

2. The super-lifting device for lifting equipment according to claim 1, characterized in that, The telescopic drive mechanism (30) is a horizontal pull cylinder. The horizontal pull cylinder is connected to the hydraulic circuit of the lifting equipment. One of the fixed end and the telescopic end of the horizontal pull cylinder is installed on the mast (10), and the other is connected to the second end of the horizontal pull rope (20).

3. The super-lifting device for lifting equipment according to claim 2, characterized in that, The super-lift device further includes a connecting rod (50), which is movably connected to the telescopic rod of the horizontal pull cylinder via a second connecting member (60). The detection module includes: The detection component (41) is provided on the connecting rod (50) and located outside the cylinder body of the horizontal pull cylinder; The sensing element (42) is in responsive cooperation with the detection element (41). There are multiple sensing elements (42), which are arranged on the outer periphery of the horizontal pull cylinder and are parallel and spaced apart along the length of the horizontal pull cylinder.

4. The super-lifting device for lifting equipment according to claim 1, characterized in that, The lifting boom is provided with a hinge portion (90) that is hinged to the ends of the two masts (10), and the opposing surfaces of the masts (10) are provided with mounting portions. The super-lifting device further includes: Two linear drive members (70) are provided, each corresponding to one of the two masts (10). One end of the linear drive member (70) is hinged to the hinge part (90), and the other end of the linear drive member (70) is hinged to the mounting part and used to drive the mast (10) to swing.

5. The super-lifting device for lifting equipment according to claim 4, characterized in that, The linear drive (70) is communicatively connected to the control module, which is further configured to: Control the telescopic drive mechanism (30) to apply a release force to the horizontal pull rope (20) to release the horizontal pull rope (20). The linear drive (70) is controlled to drive the mast (10) to swing to the target swing angle; The telescopic drive mechanism (30) is controlled to apply tension to the horizontal pull rope (20) to lock the horizontal pull rope (20).

6. The super-lifting device for lifting equipment according to any one of claims 1 to 5, characterized in that, Each of the two masts (10) has a row of storage components on its opposite sides. The storage components include a plurality of storage parts (81) arranged parallel to each other along the axial direction of the masts (10). The storage parts (81) are used to store the horizontal rope (20) when the two masts (10) are parallel.

7. The super-lifting device for lifting equipment according to claim 6, characterized in that, Each of the multiple storage components (81) in the storage assembly forms a storage channel with the corresponding mast (10). When the two masts (10) are parallel, the horizontal rope (20) passes through the two storage channels in sequence and connects to the mast (10).

8. A lifting device, characterized in that, The lifting equipment includes a lifting boom and a super-lifting device for lifting equipment according to any one of claims 1 to 7.

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