Detachable assembly type hoisting device and hoisting control method

Abstract

The invention provides a detachable assembly type hoisting device and a hoisting control method, and relates to the technical field of engineering hoisting devices.The hoisting device comprises a main body frame, a limiting assembly and a plurality of telescopic assemblies, and the limiting assembly is movably connected with the other side of the main body frame; the multiple telescopic assemblies are arranged on the inner side of the main body frame and distributed in different directions of the inner side of the main body frame, and the extending directions of the multiple telescopic assemblies all face the interior of the overall structure formed by the main body frame and the limiting assembly; when the hoisting device is used for hoisting, a to-be-hoisted component is placed in the main body frame, the limiting assembly is used for limiting, and according to the section shape of the hoisted component, the telescopic amount of the multiple telescopic assemblies in the whole structure composed of the main body frame and the limiting assembly is adjusted. The hoisting device and the hoisting control method provided by the invention are high in applicability, and meanwhile, the balance of the component during hoisting can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of engineering lifting devices, and in particular to a detachable assembled lifting device and a lifting control method. Background Art

[0002] With the continuous progress of construction technology and social economy, the construction industry has begun to pursue the development path of greening, industrialization and industrialization. Prefabricated assembly construction technology has emerged. This technology prefabricates structural components in the factory and then transports them to the construction site for hoisting and splicing.

[0003] In the process of hoisting prefabricated components, detachable lifting lugs are widely used. As an important connecting component for equipment, large and heavy steel components in transportation, disassembly and hoisting, the lifting lug is directly related to the safety of equipment, components and personnel during the hoisting process. Therefore, it plays a vital role in hoisting. The application of detachable lifting lugs mainly considers factors such as the frequency of use of large steel components and equipment during the hoisting process, the destructiveness to the structure of the steel components themselves, and the performance of the equipment and components. However, since the components or equipment themselves do not need to use the lifting lugs frequently, or setting the lifting lugs at the lifting point will affect the structure and performance of the components, the lifting lugs often need to be cut, cleaned, polished and repainted after use. This not only wastes a lot of manpower and material resources, but also has a certain degree of impact on the integrity and aesthetics of the components and equipment.

[0004] Although there are detachable lifting ear structures in engineering applications in the prior art, such lifting ears do not have the ability to accurately control the lifting balance of components. When lifting, the components are prone to skew twisting and sliding in the detachable lifting ears, thereby creating obvious lifting safety risks. At the same time, such lifting ears are often only suitable for components of specific cross-section models and lack versatility. Therefore, it is difficult to improve the application value of the detachable lifting ears. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a detachable assembled lifting device and a lifting control method to improve the applicability of the device and the balance and safety of the components during lifting.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a detachable assembled lifting device, comprising:

[0007] Main frame;

[0008] a limiting assembly, the limiting assembly being movably connected to the other side of the main frame; and

[0009] A plurality of telescopic components, wherein the plurality of telescopic components are arranged on the inner side of the main frame and the plurality of telescopic components are distributed in different directions on the inner side of the main frame, and the extension directions of the plurality of telescopic components are all toward the inside of the overall structure composed of the main frame and the limiting components; wherein,

[0010] When lifting by means of a lifting device, the component to be lifted is placed in the main frame and limited by a limiting assembly, and the amount of extension and retraction of the plurality of telescopic assemblies within the integral structure composed of the main frame and the limiting assembly is adjusted according to the cross-sectional shape of the lifting component.

[0011] In one embodiment, the main frame comprises:

[0012] Lugs;

[0013] An upper crossbeam of the frame, wherein the upper crossbeam of the frame is arranged below the lifting lug and is fixedly connected to the lifting lug;

[0014] A frame lower crossbeam, the frame lower crossbeam is arranged parallel to and below the frame upper crossbeam; and

[0015] A frame side column, wherein the frame side column is fixedly connected between the frame upper beam and the frame lower beam, one end of the frame side column is perpendicular to the bottom surface of one end of the frame upper beam, and the other end of the frame side column is perpendicular to the top surface of one end of the frame lower beam.

[0016] In one embodiment, the plurality of telescopic components include:

[0017] at least one first telescopic assembly disposed on the inner side of the upper crossbeam of the frame;

[0018] At least two second telescopic assemblies disposed inside the frame side columns; and

[0019] At least one third telescopic assembly is arranged inside the limiting assembly.

[0020] In one embodiment, the limiting assembly includes:

[0021] A first limiting block, wherein the first limiting block is movably connected to the bottom surface of the upper crossbeam of the frame;

[0022] a second limiting block, the second limiting block being arranged in parallel with the first limiting block and being movably connected to the top surface of the lower cross beam of the frame; and

[0023] A connecting rod is fixedly connected between the second limiting block and the first limiting block.

[0024] In one embodiment, a first slideway is provided on the bottom surface of the other end of the upper crossbeam of the frame;

[0025] A second slideway is provided on the top surface of the other end of the lower cross beam of the frame;

[0026] The first slideway is parallel to the second slideway.

[0027] In one embodiment, the detachable assembled lifting device further includes:

[0028] A pressure monitoring component is arranged in the main frame.

[0029] In one embodiment, the pressure monitoring assembly comprises:

[0030] At least four pressure sensors, wherein the at least four pressure sensors are symmetrically arranged along the center line of the lifting lug; and

[0031] A lifting component is arranged below the pressure sensor, and the upper end of the lifting component is fixedly connected to the pressure sensor, and the lower end of the lifting component is fixedly connected to the bottom surface of the lower cross beam of the frame.

[0032] In one embodiment, each of the plurality of telescopic assemblies comprises:

[0033] A telescopic cylinder, which is arranged on the inner side of the main frame or the inner side of the limiting assembly and is fixedly connected to the inner side of the main frame or the inner side of the limiting assembly;

[0034] A telescopic arm, one end of which is disposed in the telescopic cylinder and movably connected to the inner wall of the telescopic cylinder, and the other end of which extends out of the telescopic cylinder and contacts the outer wall of the component to be hoisted; and

[0035] A telescopic arm driving module is disposed in the telescopic cylinder, one end of the telescopic arm driving module is fixedly connected to one end of the telescopic arm and drives the telescopic arm to slide in the telescopic cylinder.

[0036] In one embodiment, the detachable assembled lifting device further includes:

[0037] A controller is communicatively connected with the pressure monitoring component and the telescopic arm driving module respectively.

[0038] An embodiment of the present invention further provides a lifting control method of a detachable assembled lifting device, comprising:

[0039] Place the component to be hoisted into the main frame and onto the pressure sensor;

[0040] Determine the cross-sectional centroid of the component to be hoisted according to the pressure data monitored by the pressure sensor and the cross-sectional dimension information of the component to be hoisted;

[0041] Determining the telescopic amounts of telescopic arms in a plurality of telescopic assemblies according to the cross-sectional centroid of the component to be hoisted;

[0042] According to the extension and retraction amounts of the telescopic arms in the plurality of telescopic assemblies, the corresponding telescopic arms are controlled to be extended and retracted so that the cross-sectional centroid of the lifting member is aligned with the center of the lifting ear.

[0043] The above solution of the present invention includes at least the following beneficial effects:

[0044] The above-mentioned scheme of the present invention provides a detachable assembled lifting device and a lifting control method, wherein the lifting device includes a main frame, a limit assembly and a plurality of telescopic assemblies; the limit assembly is movably connected to the other side of the main frame; a plurality of the telescopic assemblies are arranged on the inner side of the main frame and the plurality of the telescopic assemblies are distributed in different directions on the inner side of the main frame, and the extension directions of the plurality of telescopic assemblies are all toward the inside of the overall structure composed of the main frame and the limit assembly; wherein, when lifting is performed by the lifting device, the component to be lifted is placed in the main frame, and the limit assembly is used to limit it, and the extension amount of the plurality of telescopic assemblies inside the overall structure composed of the main frame and the limit assembly is adjusted according to the cross-sectional shape of the lifting component, so as to improve the balance and safety when the component is lifted, and the applicability of the lifting device is relatively strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a front view of a detachable assembled lifting device provided by an embodiment of the present invention;

[0046] Figure 2 It is a front view of the main frame of a detachable assembled lifting device provided by an optional embodiment of the present invention;

[0047] Figure 3 It is a front view of the assembly of the main frame and the limiting assembly provided by an optional embodiment of the present invention;

[0048] Figure 4 It is a schematic diagram of a limiting assembly provided in an optional embodiment of the present invention for limiting the component to be hoisted.

[0049] Description of Figure Numbers:

[0050] 1. Main frame; 2. Lifting ears; 3. Upper crossbeam of frame; 4. Side columns of frame; 5. Lower crossbeam of frame; 6. Limiting assembly; 61. First limiting block; 62. Second limiting block; 63. Connecting rod; 7. Telescopic cylinder; 8. Pressure sensor; 9. Component to be lifted; 10. Lifting device; 11. First telescopic assembly; 12. Second telescopic assembly; 13. Third telescopic assembly. DETAILED DESCRIPTION

[0051] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0052] In the following description, certain specific details are set forth for the purpose of illustrating the various disclosed embodiments to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0053] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0054] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0055] like Figure 1As shown, an embodiment of the present invention proposes a detachable assembled lifting device 10, which may include a main frame 1, a limiting assembly 6 and a plurality of telescopic assemblies. The limiting assembly 6 is movably connected to the other side of the main frame 1; a plurality of telescopic assemblies are arranged on the inner side of the main frame 1 and the plurality of telescopic assemblies are distributed in different directions on the inner side of the main frame 1, and the extension directions of the plurality of telescopic assemblies are all toward the inside of the overall structure composed of the main frame 1 and the limiting assembly 6; wherein, when lifting by the lifting device, the component 9 to be lifted is placed in the main frame 1, and the limiting assembly 6 is used for limiting, and the extension amount of the plurality of telescopic assemblies inside the overall structure composed of the main frame 1 and the limiting assembly 6 is adjusted according to the cross-sectional shape of the lifting component 9.

[0056] In this embodiment, the main frame 1 is a C-shaped structure as a whole, so as to facilitate the placement of the component 9 to be hoisted and improve the stability of the main frame 1; the limit assembly 6 is assembled on one side of the main frame 1 and forms a square structure with a cavity with the main frame 1 (such as Figure 3 As shown), the position of the component to be hoisted 9 is limited to prevent the component to be hoisted 9 from falling off from the main frame 1 during the hoisting process;

[0057] A plurality of telescopic components are assembled on the inner side of the main frame 1. Here, the telescopic components may be distributed on the top surface or side surface inside the main frame 1, or on the inner side of the limit component 6 (this side may also be used as the inner side of the main frame 1), or simultaneously distributed on the inner side of the limit component 6 and the top surface or side surface inside the main frame 1, so that the telescopic components are distributed in different directions inside the square structure formed by the limit component 6 and the main frame 1, so as to adjust the telescopic amount of the telescopic components according to the cross-sectional model of the component 9 to be hoisted; one end of the telescopic component is fixed on the main frame 1 or the limit component 6, and when in use, the other end is controlled to telescope and contact with the surface of the component 9 to be hoisted;

[0058] By setting telescopic components at different positions and in different directions on the inner side of the main frame 1 (on the top surface or side surface inside the main frame 1 and the inner side of the limit component 6) and controlling the telescopic amount of multiple telescopic groups in different directions and at different positions, the component to be lifted 9 is pushed, and then the position of the component to be lifted 9 on the main frame 1 is adjusted; multiple telescopic devices work together during telescoping to achieve automatic adjustment of the position of the component to be lifted 9 with different cross-sectional models in the main frame 1, and at the same time cooperate with the limit component 6 to limit and fix the component to be lifted 9 to ensure the balance and stability of the component to be lifted 9 during lifting, and at the same time solve the problem that the current assembled lifting ears do not have the ability to accurately adjust the balance of the component to be lifted, thereby improving the applicability of the lifting device for lifting components with different cross-sectional models to be lifted and the safety during use; in addition, some components in the lifting device are assembled, which is convenient for installation, disassembly, maintenance and management.

[0059] like Figure 2 As shown, in an optional embodiment of the present invention, the main frame 1 may include a lifting lug 2, a frame upper beam 3, a frame lower beam 5, and a frame side column 4. The frame upper beam 3 is arranged below the lifting lug 2 and fixedly connected to the lifting lug 2; the frame lower beam 5 is arranged parallel to and below the frame upper beam 3; the frame side column 4 is fixedly connected between the frame upper beam 3 and the frame lower beam 5, one end of the frame side column 4 is perpendicular to the bottom surface of one end of the frame upper beam 3, and the other end of the frame side column 4 is perpendicular to the top surface of one end of the frame lower beam 5.

[0060] In this embodiment, the lifting ear 2 is fixedly connected to the center position of the upper cross beam 3 of the frame to ensure balance during lifting; the two ends of the frame side column 4 are vertical and fixedly connected to the bottom surface of the upper cross beam 3 of the frame and the top surface of the lower cross beam 5 of the frame, respectively, to form a C-shaped structure of the main frame 1, so as to place the component 9 to be lifted on the top surface of the lower cross beam 5 of the frame, and at the same time improve the overall stability of the lifting device 10.

[0061] like Figure 1 As shown, in an optional embodiment of the present invention, the multiple telescopic components include at least one first telescopic component 11 arranged on the inner side of the frame upper beam 3, at least two second telescopic components 12 arranged on the inner side of the frame side column 4, and at least one third telescopic component 13 arranged on the inner side of the limit component 6.

[0062] In this embodiment, telescopic component installation holes 14 can be pre-opened on the frame upper beam 3, the frame side columns 4 and the limit components 6. When the lifting device is used, the component 9 to be lifted is placed on the bottom surface inside the main frame 1. A corresponding number of telescopic components can be installed at different positions according to the cross-sectional model of the component 9 to be lifted, so as to adjust the telescopic amount of the telescopic components at different positions, so that the telescopic components can push the component 9 to be lifted in different directions, and the position of the component 9 to be lifted can be adjusted in time, thereby ensuring the balance of the component 9 to be lifted and the safety of the lifting process.

[0063] like Figure 4 As shown, in an optional embodiment of the present invention, the limit assembly 6 may include a first limit block 61, a second limit block 62 and a connecting rod 63. The first limit block 61 is movably connected to the bottom surface of the upper cross beam 3 of the frame; the second limit block 62 is arranged in parallel with the first limit block 61, and the second limit block 62 is movably connected to the top surface of the lower cross beam 5 of the frame; and the connecting rod 63 is fixedly connected between the second limit block 62 and the first limit block 61.

[0064] In this embodiment, the limit assembly 6 can be assembled by a first limit block 61, a second limit block 62 and a connecting rod 63; here, the first limit block 61 and the second limit block 62 can both be composed of beam supports and stiffening ribs, and the connecting rod 63 can be made of precision-rolled threaded steel; in specific use, the first limit block 61 and the second limit block 62 can slide on one side of the bottom surface of the upper beam 3 of the frame and one side of the top surface of the lower beam 5 of the frame, respectively, so as to limit the component 9 to be hoisted placed on the lower beam 5 of the frame, so as to ensure the balance and stability of the component 9 to be hoisted during hoisting.

[0065] In an optional embodiment of the present invention, a first slideway is provided on one side of the bottom surface of the upper crossbeam 3 of the frame; a second slideway is provided on one side of the top surface of the lower crossbeam 5 of the frame; and the first slideway is parallel to the second slideway.

[0066] In this embodiment, one side of the first limit block 61 is slidably connected to the first slide, and one side of the second limit block 62 is slidably connected to the second slide, so that the limit assembly 6 as a whole slides on one side of the main frame 1 to achieve limiting; preferably, locking clamps can be provided on the first slide and the second slide. When the first limit block 61 and the second limit block 62 slide to the desired position, the first limit block 61 and the second limit block 62 are respectively locked on the first slide and the second slide by the locking clamp to ensure safety during lifting.

[0067] In an optional embodiment of the present invention, the above-mentioned detachable assembled lifting device may also include a pressure monitoring component, which is arranged in the main frame 1 to monitor the pressure exerted on the main frame 1 after the component 9 to be lifted is placed.

[0068] Further, the pressure monitoring component includes:

[0069] At least four pressure sensors 8 and lifting components. Among them, at least four pressure sensors 8 are symmetrically arranged on both sides of the center line of the lifting lug 2; the lifting component is set below the pressure sensor 8, and the upper end of the lifting component is fixedly connected to the pressure sensor 8, and the lower end of the lifting component is fixedly connected to the bottom surface of the lower cross beam 5 of the frame.

[0070] In this embodiment, at least four pressure sensors 8 are symmetrically arranged along the two sides of the center line of the lifting ear 2 to ensure the accuracy of the pressure monitoring, and then ensure the accuracy of the subsequent adjustment of the telescopic amount of the telescopic assembly according to the pressure monitoring data; during the test, the pressure sensor 8 can be first raised to a preset height through the lifting assembly, and contacted with the component to be lifted 9, so that the component to be lifted 9 is pressed on the pressure sensor 8 as a whole, and then the pressure monitoring data is obtained; when the telescopic amount of the telescopic assembly is adjusted according to the pressure monitoring data, the pressure sensor 8 is lowered to the top surface of the lower crossbeam 5 of the frame through the lifting assembly to facilitate the passage of the pressure sensor 8. The position of the component to be lifted 9 on the top surface of the lower cross beam 5 of the frame is adjusted by the telescopic amount of the telescopic component, so that the lifting force line of the component to be lifted 9 during lifting is aligned with the center line of the lifting ear 2, thereby ensuring the balance of the component to be lifted 9 during subsequent lifting and the safety during lifting; here, the lifting component can be a hydraulic drive mechanism embedded in the lower cross beam 5 of the frame and fixedly connected to the bottom surface of the lower cross beam 5 of the frame. When monitoring the pressure, the hydraulic drive mechanism can be remotely controlled to drive the pressure sensor 8 to rise and fall; here, the center line of the lifting ear 2 refers to a straight line passing through the lifting ear 2 and perpendicular to the lower cross beam 5 of the frame.

[0071] In an optional embodiment of the present invention, each of the multiple telescopic assemblies may include a telescopic cylinder 7, a telescopic arm, and a telescopic arm driving module. The telescopic cylinder 7 is arranged on the inner side of the main frame 1 or the inner side of the limit assembly 6, and is fixedly connected to the inner side of the main frame 1 or the inner side of the limit assembly 6; one end of the telescopic arm is arranged in the telescopic cylinder 7 and is movably connected to the inner wall of the telescopic cylinder 7, and the other end of the telescopic arm extends out of the telescopic cylinder 7 and contacts the outer wall of the component 9 to be hoisted; the telescopic arm driving module is arranged in the telescopic cylinder 7, and one end of the telescopic arm driving module is fixedly connected to one end of the telescopic arm and drives the telescopic arm to slide in the telescopic cylinder 7.

[0072] In this embodiment, the telescopic cylinder 7 can be arranged on the inner side of the limiting component 6 and the bottom surface of the frame upper cross beam 3 of the main frame 1 or the inner side of the frame side column 4, and is fixedly connected with the telescopic component mounting hole on the inner side of the limiting component 6 and the telescopic component mounting hole on the bottom surface of the frame upper cross beam 3 of the main frame 1 or the telescopic component mounting hole on the inner side of the frame side column 4; in an achievable example of the present invention, two telescopic component mounting holes can be evenly arranged on the frame side column 4 (one at the bottom of the inner side of the frame side column 4, and the other at 3 / 4 of the height relative to the limiting component 6), a telescopic component mounting hole is arranged at the middle position of the inner bottom surface of the frame upper cross beam 3, and a telescopic component mounting hole is arranged on the inner side of the second limiting block of the limiting component 6;

[0073] A track for the telescopic arm to slide is provided on the inner wall of the telescopic cylinder 7, so that the telescopic arm driving module drives the telescopic arm to slide in the telescopic cylinder 7, thereby adjusting the telescopic amount of the telescopic arm outside the telescopic cylinder 7; here, the telescopic arm driving module can be an electric push rod to push the telescopic arm to slide in the telescopic cylinder 7;

[0074] It should be known that the telescopic assembly is not limited to the above structure, and can be controlled to telescope inside the main frame 1 to push the component 9 to be lifted. For example, the telescopic assembly can also be a hydraulic telescopic assembly including a hydraulic cylinder and a piston rod.

[0075] In an optional embodiment of the present invention, the above-mentioned detachable assembled lifting device may further include a controller, which is respectively communicated with the pressure monitoring component and the telescopic arm driving module, so as to timely transmit the monitored pressure monitoring data through the pressure sensor 8 of the pressure monitoring component, and calculate the telescopic amount of the telescopic arm in the telescopic component based on the pressure monitoring data and the cross-sectional shape of the component to be lifted 9, and control the telescopic arm to extend and retract, thereby ensuring the balance stability and safety during the lifting process.

[0076] When the lifting device provided by the above embodiment of the present invention is assembled, the specific process is as follows:

[0077] Step 11, welding the lifting lug 2 to the top surface of the upper crossbeam 3 of the main frame 1, and connecting the upper crossbeam 3, the side columns 4 and the lower crossbeam 5 to form a stable C-shaped structure;

[0078] Step 12, at least four pressure sensors 8 are symmetrically arranged on the lower cross beam 5 of the main frame and along both sides of the center line of the lifting lug 2;

[0079] Step 13, assemble the limit assembly 6 on the right side of the main frame 1, slide the first limit block 61 and the second limit block 62 of the limit assembly 6 to the first slideway on the bottom surface of the frame upper beam 3 and the second slideway on the top surface of the frame lower beam 5, respectively, and screw the connecting rod 63 to the first limit block 61 and the second limit block 62 with bolts, so that the main frame 1 and the limit assembly 6 form a stable square structure;

[0080] Step 14, assemble the telescopic assembly at the required position of the main frame 1 and the limit assembly 6 (on the frame upper beam 3, the frame side column 4 and the second limit block 62), so as to adjust its position and quantity in the frame side column 4, the frame upper beam 3 and the second limit block 62 according to the cross-sectional shape of the component 9 to be lifted.

[0081] An embodiment of the present invention further provides a lifting control method of a detachable assembled lifting device based on the above embodiment, comprising:

[0082] Step 21, placing the component 9 to be hoisted into the main frame 1 and onto the pressure sensor 8;

[0083] Step 22, determining the cross-sectional centroid of the component 9 to be hoisted according to the pressure data monitored by the pressure sensor 8 and the cross-sectional dimension information of the component 9 to be hoisted;

[0084] Step 23, determining the telescopic amounts of the telescopic arms in the plurality of telescopic assemblies according to the cross-sectional centroid of the component 9 to be hoisted;

[0085] Step 24 , according to the extension and retraction amounts of the telescopic arms in the multiple telescopic assemblies, control the extension and retraction of the corresponding telescopic arms, so that the cross-sectional centroid of the lifting member 9 is aligned with the center of the lifting ear 2 .

[0086] In this embodiment, the component 9 to be hoisted is placed on the lower crossbeam 5 of the main frame 1, the pressure sensor 8 is raised by the lifting assembly to monitor the pressure, and the pressure sensor 8 is lowered after the pressure monitoring data is obtained; it should be known that when the component 9 to be hoisted is initially placed and the cross-sectional centroid of the component 9 to be hoisted is just aligned with the center of the lifting lug 2 (the center of the four pressure sensors 8), the pressure monitoring data measured by the four pressure sensors 8 should be the same; when the readings sent back to the controller by the four pressure sensors are different, it means that the position of the cross-sectional centroid of the current component 9 to be hoisted needs to be adjusted; further, the controller calculates and determines the cross-sectional centroid of the component 9 to be hoisted according to the cross-sectional dimension information of the component 9 to be hoisted (the cross-sectional dimension information may include the number of edges and vertices of the polygon corresponding to the cross-sectional shape); further, according to the position of the cross-sectional centroid and the center position of the lifting lug 2, the telescopic amount of the telescopic arms in the multiple telescopic assemblies can be determined to adjust the cross-sectional centroid of the component 9 to be hoisted to be aligned with the center of the lifting lug 2, so as to ensure the balance, stability and safety during the hoisting process;

[0087] Since the lifting device is provided with a lifting eye 2 (only one lifting rope is needed when lifting the component 9 to be lifted), it should be known that during the lifting process and while maintaining the lifting balance, the force direction of the component 9 to be lifted should coincide with the center line of the lifting eye 2, and the displayed numbers of the four pressure sensors 8 should also be the same. At this time, the centroid position of the lifting component 9 and the center position of the lifting eye 2 are both on the center line of the lifting eye 2; when determining the expansion and contraction amount according to the position of the centroid of the cross section and the center position of the lifting eye 2, a three-dimensional coordinate system is established with the center position of the lifting eye 2 as the origin. At this time, the Z axis coincides with the center line, and the distance between the centroid of the cross section and the origin on different axes is the first distance of movement of the centroid position of the lifting component 9;

[0088] Since at the initial moment of telescopic adjustment of the telescopic arm, the telescopic arm is located in the telescopic cylinder 7 and is flush with the inner side of the limit assembly 6 or the bottom surface of the upper cross beam 3 of the frame or the inner side of the frame side column 4, at this time, according to the centroid position of the lifting member 9, the second distance of the centroid of the lifting member 9 from the inner side of the limit assembly 6 or the inner side of the frame side column 4 can be determined; further, the first distance is added to the second distance to obtain the telescopic amount of the telescopic arm in the telescopic assembly in different directions;

[0089] Preferably, each telescopic arm may be provided with a linear displacement sensor, which is in communication connection with the controller; during the telescopic arm extension and retraction process, the linear displacement sensor monitors the extension amount of the telescopic arm in real time, and feeds back to the controller to accurately control the extension amount of the telescopic arm when it moves;

[0090] Here, the telescopic amount mainly refers to the corresponding pushing amount when the telescopic arms at different positions push the component to be lifted 9. When performing telescopic control, the controller controls the telescopic arm driving module to drive the telescopic arm to slide in the telescopic cylinder 7 and extend out of the telescopic cylinder to push the component to be lifted 9; when pushing, the order of pushing the telescopic arms at different positions in the main frame 1 is not restricted; for example, the telescopic arm driving module on the frame side column 4 can first drive the telescopic arm to extend the corresponding telescopic amount according to the control signal to push and position the component to be lifted 9, and then the telescopic arm driving module on the second limit block 62 can drive the telescopic arm to extend the corresponding telescopic amount according to the control signal to push and limit the component to be lifted 9 laterally, and finally the telescopic arm driving module on the frame upper beam 3 can drive the telescopic arm to extend the corresponding telescopic amount according to the control signal to push and limit the component to be lifted 9 vertically;

[0091] In practical applications, the lifting devices provided in the above embodiments are usually used in combination to lift relatively large components. One lifting device can ensure that the center of the lifted component is aligned in the width direction of this section, and the balance of the component in the length direction is ensured by the alignment of multiple lifting devices. Therefore, there is no need to consider the front and rear adjustments to align the centroid of the component in the length direction with the center of the lifting ear of a single lifting device.

[0092] Preferably, according to the cross-sectional dimension information of the component 9 to be hoisted, the cross-sectional centroid of the component 9 to be hoisted is calculated and determined, which can be calculated by the following formula:

[0093]

[0094] Among them, (C x , C y ) represents the cross-sectional centroid of the component 9 to be hoisted; A represents the cross-sectional area of ​​the component 9 to be hoisted; (a i , b i) represents the i-th ordered vertex corresponding to the cross-sectional shape of the component 9 to be lifted; n represents the number of edges corresponding to the cross-sectional shape of the component 9 to be lifted, where i=1, 2, 3, ..., n is a positive integer.

[0095] The above-mentioned embodiments of the present invention provide a detachable assembled lifting device and a lifting control method. By assembling telescopic components on the inner side of the main frame and the inner side of the limit component and setting a pressure sensor on the inner bottom surface of the main frame, the balance of the component to be lifted during the lifting process can be monitored in real time through the pressure sensor, and the telescopic amount of the telescopic arm in the telescopic component in different directions can be determined according to the specific position of the centroid of the cross-section of the component to be lifted, thereby controlling the coordinated action of the telescopic arms of multiple telescopic components, realizing automatic adjustment of the position of the component to be lifted in the main frame and finally limiting and fixing the component to be lifted, thereby solving the problem that the current assembled lifting ears do not have the ability to accurately adjust the balance of the component to be lifted during lifting, and at the same time improve the safety and applicability during lifting. In addition, some components in the lifting device are assembled, which is convenient for installation, disassembly and maintenance.

[0096] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A detachable assembled lifting device, characterized in that: include: Main frame (1); A limiting component (6), the limiting component (6) being movably connected to the other side of the main frame (1); as well as A plurality of telescopic components, wherein the plurality of telescopic components are arranged on the inner side of the main frame (1) and the plurality of telescopic components are distributed in different directions on the inner side of the main frame (1), and the extension directions of the plurality of telescopic components are all toward the interior of the overall structure composed of the main frame (1) and the limiting component (6); wherein: When lifting by means of a lifting device, the component (9) to be lifted is placed in the main frame (1), and is limited by a limiting assembly (6), and the amount of extension and contraction of the plurality of telescopic assemblies within the overall structure composed of the main frame (1) and the limiting assembly (6) is adjusted according to the cross-sectional shape of the lifting component (9).

2. The detachable assembled lifting device according to claim 1, characterized in that: The main frame (1) comprises: Lifting lugs (2); An upper crossbeam (3) on the frame, wherein the upper crossbeam (3) on the frame is arranged below the lifting lug (2) and is fixedly connected to the lifting lug (2); A frame lower crossbeam (5), the frame lower crossbeam (5) being arranged parallel to and below the frame upper crossbeam (3); and A frame side column (4), wherein the frame side column (4) is fixedly connected between the frame upper crossbeam (3) and the frame lower crossbeam (5), one end of the frame side column (4) is perpendicular to the bottom surface of one end of the frame upper crossbeam (3), and the other end of the frame side column (4) is perpendicular to the top surface of one end of the frame lower crossbeam (5).

3. The detachable assembled lifting device according to claim 2, characterized in that: The plurality of telescopic components include: At least one first telescopic assembly (11) arranged on the inner side of the upper crossbeam (3) of the frame; At least two second telescopic components (12) are arranged inside the frame side columns (4); and At least one third telescopic assembly (13) is arranged inside the limiting assembly (6).

4. The detachable assembled lifting device according to claim 2, characterized in that: The limiting component (6) comprises: A first limiting block (61), the first limiting block (61) being movably connected to the bottom surface of the upper crossbeam (3) of the frame; a second limiting block (62), the second limiting block (62) being arranged in parallel with the first limiting block (61), and the second limiting block (62) being movably connected to the top surface of the lower cross beam (5) of the frame; and A connecting rod (63), wherein the connecting rod (63) is fixedly connected between the second limiting block (62) and the first limiting block (61).

5. The detachable assembled lifting device according to claim 2, characterized in that: A first slideway is provided on the bottom surface of the other end of the upper crossbeam (3) of the frame; A second slideway is provided on the top surface of the other end of the lower cross beam (5) of the frame; The first slideway is parallel to the second slideway.

6. The detachable assembled lifting device according to claim 2, characterized in that: Also includes: A pressure monitoring component is arranged in the main frame (1).

7. The detachable assembled lifting device according to claim 6, characterized in that: The pressure monitoring component comprises: At least four pressure sensors (8), wherein the at least four pressure sensors (8) are symmetrically arranged along the center line of the lifting lug (2); and A lifting component is arranged below the pressure sensor (8), and the upper end of the lifting component is fixedly connected to the pressure sensor (8), and the lower end of the lifting component is fixedly connected to the bottom surface of the lower cross beam (5) of the frame.

8. The detachable assembled lifting device according to claim 6, characterized in that: Each of the plurality of telescopic assemblies comprises: A telescopic cylinder (7), wherein the telescopic cylinder (7) is arranged on the inner side of the main frame (1) or the inner side of the limiting assembly (6) and is fixedly connected to the inner side of the main frame (1) or the inner side of the limiting assembly (6); a telescopic arm, one end of which is disposed in the telescopic cylinder (7) and movably connected to the inner wall of the telescopic cylinder (7), and the other end of which extends out of the telescopic cylinder (7) and contacts the outer wall of the component to be hoisted (9); and A telescopic arm driving module, wherein the telescopic arm driving module is arranged in the telescopic cylinder (7), one end of the telescopic arm driving module is fixedly connected to one end of the telescopic arm and drives the telescopic arm to slide in the telescopic cylinder (7).

9. The detachable assembled lifting device according to claim 8, characterized in that: Also includes: A controller is communicatively connected with the pressure monitoring component and the telescopic arm driving module respectively.

10. A lifting control method based on the detachable assembled lifting device according to any one of claims 1 to 9, characterized in that: include: Placing the component (9) to be hoisted into the main frame (1) and onto the pressure sensor (8); Determining the cross-sectional centroid of the component (9) to be hoisted based on the pressure data monitored by the pressure sensor (8) and the cross-sectional dimension information of the component (9) to be hoisted; Determining the telescopic amounts of telescopic arms in a plurality of telescopic assemblies according to the cross-sectional centroid of the component (9) to be hoisted; According to the extension and retraction amounts of the telescopic arms in the plurality of telescopic assemblies, the corresponding telescopic arms are controlled to extend and retract, so that the cross-sectional centroid of the lifting member (9) is aligned with the center of the lifting ear (2).

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