new adjustable multi-purpose lifting beam and its lifting method

Abstract

New adjustable multi-purpose lifting beam, characterized in that the lifting beam comprises two parallel main beams (1), wherein the two ends of the two main beams (1) are connected to an end beam (2), and wherein the main beams (1) are provided with several sliding hangers (3) relative to the main beams (1), wherein a threaded rod (6) is provided between the two main beams (1) to which the sliding hangers are screwed, wherein a first motor (7) is provided at one end of the threaded rod (6), wherein a reduction gear (8) is provided between the first motor (7) and the threaded rod (6), and wherein one end of the threaded rod (6) is connected to the reduction gear (8), wherein the first motor (7) and the reduction gear (8) are mounted on the end beam (2).

Description

Technical field

[0001] The invention relates to the field of lifting, in particular a new adjustable multi-purpose lifting beam and its lifting method. State of the art

[0002] Lifting equipment is typically raised using lifting beams when multiple or complex lifting operations are required. Lifting beams are used for loading and unloading large goods and components of specialized lifting devices. To ensure safe and reliable operation of the lifting beam, it is essential to precisely determine the center of gravity of the heavy goods and distribute the load accurately at each lifting point. Existing lifting beams are of the rigid type with upper and lower lifting points and a simple structural design. The spreader beam structure consists of a large counterweight beam, smaller counterweight beams, and the lifting mechanism, all embedded within the large counterweight beam. Lifting beams use ropes to raise heavy objects for transport, loading, and unloading.However, due to its impractical structure and poor balance, it is essential to find the optimal center of gravity when lifting heavy objects and to precisely distribute the load at each lifting point. Otherwise, the beam can easily deflect excessively, creating safety hazards. Furthermore, the beam's function is relatively simple, the application and functionality of existing technology are limited, and its versatility is very low. This does not meet the requirements for adjustable lifting capacities and amplitudes, nor for extending the amplitude of lifting equipment. Lifting beams that are not adjustable at the upper and lower lifting points are unsuitable for various applications and functions. Therefore, we are designing a new adjustable, multi-purpose lifting beam and lifting method to address the aforementioned problem.

[0003] Japanese patent document JP 2010-173754 A discloses a lifting device comprising: a horizontally extending frame moved by a loading and unloading machine; a sliding frame held by the frame and movable linearly in a horizontal direction; claws provided on the sliding frame; and drive means extending along the frame to move the sliding frame horizontally. Chinese patent document CN 109335949 B discloses a lifting device with a beam-like compensating arm, comprising a compensating beam connected by weightlifting steel wire ropes to a shoulder bar beam, a counterweight, and a pair of slightly loose safety ropes. Chinese patent document CN208266824U documents a compensating roller device for adjusting the deviation of a lifting point, comprising a set of rollers, characterized in that this device further comprises a first lifting plate, a second lifting plate,comprising a horizontal lifting beam, a bolted connection and a load-bearing hinge component mounted on the frame, wherein both the first and second lifting plates are attached to the lower surface of the crossbeam, the load-bearing hinge component comprising a load-bearing hinge holder and a load-bearing hinge shaft, wherein the lower part of the load-bearing hinge holder is attached to the frame by means of a bolted connection, the upper part of the load-bearing hinge holder is rotatably connected to the crossbeam by means of the load-bearing hinge shaft, and wherein the roller set comprises a first compensating roller and a second compensating roller, wherein the first compensating roller is mounted on one end of the crossbeam by means of the first lifting plate,The second compensating roller is mounted at the other end of the crossbeam by means of the second lifting plate. The utility model can achieve immediate dynamic adjustment of the balance between the two lifting points during operation of the opening and closing machine without requiring any maintenance interruption, and can effectively ensure the stability of the opening and closing machine's operation. However, the structure does not meet the requirements for adjustable lifting weights and amplitude of lifting devices, nor the requirements for extending the amplitude of lifting devices. Lifting beams that are not adjustable at the upper and lower lifting points do not meet the requirements of various occasions and functions. They are deficient in their application and need improvement. Content of the invention

[0004] The invention provides a new adjustable multi-purpose lifting beam and a lifting method to solve the problem that the requirements for adjustable lifting weight and amplitude of lifting devices cannot be met and that the amplitude limit of lifting devices needs to be extended. Lifting beams that are not adjustable at the upper and lower lifting points do not meet the requirements of various occasions and functions.

[0005] To solve the aforementioned technical problems, the present invention employs the following technical solutions: a novel adjustable multi-purpose lifting beam comprising two parallel main beams, wherein the two ends of the two main beams are connected to an end beam, and wherein the main beams are provided with several sliding hangers relative to the main beams, wherein a threaded rod is provided between the two main beams to which the sliding hangers are screwed, wherein a first motor is provided at one end of the threaded rod, wherein a reduction gear is provided between the first motor and the threaded rod, and wherein one end of the threaded rod is connected to the reduction gear, and wherein the first motor and the reduction gear are mounted on the end beam.

[0006] In the preferred solution, several receiving holes are arranged on the inside of the main beam, wherein the main beam is provided with a beam track, and wherein one of the main beams on the outer lifting platform is provided with a power supply cabinet, wherein the power supply cabinet is provided with a solar panel and one side of the power supply cabinet with a battery.

[0007] In the preferred solution, the sliding hanger comprises a hanger body provided with a through-slot, wherein at least one suction solenoid valve is arranged in the through-slot, wherein one end of the suction solenoid valve is connected to a groove, wherein another end of the suction solenoid valve is attached to the hanger body and the groove is screwed to the threaded rod.

[0008] In the preferred solution, a return spring is provided between the groove and the hanger body, wherein an upper suspension eyelet is provided on the top of the hanger body and a lower suspension eyelet is provided on the underside of the hanger body.

[0009] In the preferred solution, a telescopically displaceable positioning bolt is provided on both sides of the hanger body, wherein a bolt setting motor is provided on the hanger body, wherein a bolt setting oil pump is provided at one end of the bolt setting motor, which is connected to the positioning bolt by means of a telescopically displaceable oil cylinder;

[0010] the positioning bolts rest in the receiving holes when the positioning bolts are extended on both sides of the hanger body.

[0011] In the preferred solution, the hanger body is provided on both sides with several side plates, on which a running wheel is arranged that is articulated to the side plate and slides against the beam track, the hanger body being provided with a position sensor and a weight sensor.

[0012] In the preferred solution, at least one threaded rod is provided between the two main beams, wherein a bearing seat is provided between the two main beams, which is arranged in the central or eccentric position of the main beam, wherein a bearing is arranged at the bearing seat, and wherein the threaded rod is rotatably connected to the bearing seat.

[0013] A lifting method for a new adjustable multi-purpose lifting beam, which, when using a single primary crane, consists of...

[0014] S1. raises the hook of the first crane into the air and connects the first crane to two of the sliding hangers on the beam device;

[0015] S2. suspends a counterweight box or at least one load piece from the underside of at least two sliding hangers to the beam device and adds a calculated suitable number of counterweight blocks to the counterweight compartment of the counterweight box by means of a suitable calculation or automatic program calculation;

[0016] S3. lifts the first crane and controls the power supply switch cabinet manually or automatically according to a program by a system to move the sliding hanger with the load piece or the counterweight box on the main beam at the same moment in order to adjust the position of the lifting beam device in the air and to maintain the dynamic equilibrium;

[0017] S4. using the first crane to lift the load into the target position and then unhook it, while at all times manually or by a system according to a program controlling the power supply switch cabinet, and adjusting the position of the lifting beam device to maintain dynamic equilibrium;

[0018] S5. Repeat step S4 until the load is unloaded.

[0019] S6. drops the hook of the first crane and unloads the counterweight box to complete the lifting operation.

[0020] One preferred solution is to raise the hook of the crane S1 into the air and connect one or more cranes to two of the sliding hangers on the beam device;

[0021] S2. suspends a counterweight box and one or more load pieces from the underside of several sliding hangers to the beam device and adds a calculated suitable number of counterweight blocks to the counterweight compartment of the counterweight box by means of a suitable calculation or automatic program calculation;

[0022] S3. lifts the crane, controls the power supply switch cabinet manually or automatically via a system and according to a program to move the sliding hanger, which serves to attach the crane hook, the suspended counterweight box or the load piece, adapted to moments on the main beam, and to dynamically adjust the relative position of the crane hook, the counterweight box or the load piece on the beam in the air and to maintain dynamic equilibrium;

[0023] S4. uses the crane to lift one of the suspended load pieces into the target position and then unhooks it, while manually or automatically controlling the power supply switch cabinet by a system according to a program, and adjusting the position of the lifting beam device to maintain dynamic equilibrium.

[0024] S5. repeats steps S3 and S4 and then lifts another load into the target position and unhooks it until the weight is relieved;

[0025] S6. drops the crane hook and unloads the counterweight box to complete the lifting operation.

[0026] One preferred solution is to raise the hooks of one or more cranes into the air and connect the cranes to the beam device using the sliding hanger;

[0027] S2. connects both ends of the load to the lower suspension eyes of two of the sliding hangers by means of a wire rope, wherein a remotely controlled hoist is mounted on the support rope that connects one of the ends of the load to the lower suspension eyes of the sliding hanger.

[0028] S3. controls the power supply cabinet manually or automatically by the system according to the program to move the lifting hanger with the load on the main beam in order to keep the center of gravity of the load in the vertical position determined by the calculation of the lifting beam device, and thus maintain the dynamic equilibrium, and at the same time, using the wireless remote control of the hoist, retracts the wire rope until the wire rope of the hoist is slack and the load is in a vertical position and the transfer is completed;

[0029] S4. rotates the first crane and the second crane into the drop hook position to unload the load and complete the lifting operation.

[0030] The advantageous effect of the invention is that two main beams and two end beams are connected at both ends to form a stable overall structure. The main and end beams combine their functional properties and can be lightweight and stable constructions, such as box girders or I-beams. Preferably, two parallel box girders are used as main beams, and the ends are connected by box end beams to form a stable overall structure.

[0031] Multiple sliding hangers allow for dynamic adjustment of the main beam and the lifting of several different loads or counterweight boxes beneath the beam assembly. The beam assembly is capable of continuously gathering information about the position of the sliding hanger to which the crane hook is attached, as well as the position and lifting capacity of the sliding hanger to which the load or counterweight is attached.Then, through the automatic calculation of the control system based on ensuring dynamic equilibrium, the sliding mechanism is driven to slide on the main girder to adjust the force arm of the load or counterweight box, in order to establish a moment equilibrium between the suspended load or between the load and the counterweight box, thus fulfilling the needs of various types and occasions that are difficult to meet with fixed lifting point traverses, such as dynamic lifting with variable amplitude of several machines, lifting with one or more machines with extended amplitude, lifting with a shallow cavity, rotating a single machine in the air, adjusting the lifting point of several cranes to each other or lifting with a full load, simultaneous lifting and unloading of several elevators, dynamic adjustment of the crane lifting point in the air, etc.

[0032] This device is well-suited for the dynamic adjustment of crane lifting points. When the crane's upper lifting point is adjusted, the sliding hanger, lower load blocks, and counterweight boxes move in parallel to maintain overall dynamic equilibrium. This prevents the beam assembly from becoming unbalanced if the lower lifting point is not adjusted in parallel, which could lead to safety issues. At the same time, the lifting device offers the advantages of a simple structure, high versatility, and automatic adjustment.

[0033] By extending the lifting method outwards, not only is the lifting range of the crane increased, but it also makes it possible to lift shallow holes in the side walls, which was difficult to achieve with the original lifting device, thus creating a simple, lightweight and safe idea and device for solving such technical problems.

[0034] Nowadays, two cranes are often used for aerial rotation to suspend the two ends of the load, in conjunction with rocking and lifting the hook, thus completing the process of rotating the weight from a horizontal to a vertical state. This patent is well suited to the need for aerial rotation with only a single crane. The two sliding hangers of the beam lifting device are each attached to the two ends of the load in its horizontal position. One of the sliding hangers is connected at the lower lifting point to a remote-controlled electric winch and then to one end of the load by a drop chute.The electric control system automatically or manually controls the movement of the lifting jib towards mutual approach by synchronizing the set parameters. The transition from a flat to a vertical state is gradual, and overall dynamic equilibrium is maintained, thus preventing a loss of balance when the load needs to be turned in mid-air, which would lead to safety problems. Existing technology requires two or more cranes to turn a load in mid-air, but this device and procedure require only one lifting device. This significantly saves labor time, optimizes construction steps on the site, improves economic efficiency, reduces the likelihood of safety accidents, and offers considerable promotional value. Brief descriptions of the characters

[0035] The invention will now be described in more detail with reference to the drawings and exemplary embodiments. Fig. 1 a top view of the overall structure of the present invention; Fig. 2 a side view of the overall structure of the present invention; Fig. 3 Sectional view of AA in Fig. 1, wherein the suction solenoid valve according to the invention is disconnected and the positioning bolt is extended; Fig. 4 Sectional view of AA in Fig. 1, wherein the suction solenoid valve according to the invention is closed and the positioning bolt is extended; Fig. 5 Sectional view of AA in Fig. 1, wherein the suction solenoid valve according to the invention is disconnected and the positioning bolt is retracted; Fig. 6 a front view of the counterweight box of the present invention; Fig. 7 a schematic representation of the present invention with outwardly extended amplitude for lifting when using a crane; Fig. 8 a schematic representation of the invention using a crane that reaches into the hole for lifting; Fig. 9 a first schematic representation of the present invention using a crane for simultaneously lifting several load pieces; Fig. 10 a second schematic representation of the present invention using a crane for simultaneously lifting several loads; Fig. 11 a third schematic representation of the present invention using a crane for simultaneously lifting several loads; Fig. 12 a fourth schematic representation of the present invention using a crane for simultaneously lifting several load pieces; Fig. 13 a first schematic representation of the present invention using a crane for turning a load piece; Fig. 14 a second schematic representation of the present invention using a crane for turning a load; Fig. 15 a third schematic representation of the present invention using a crane for turning a load; Fig. 16 A schematic representation of the invention using two cranes for setting the lifting points for lifting the full load

[0036] Reference numeral list: Main beam 1; Mounting hole 101; Beam track 102; End beam 2; Sliding hanger 3; Hanger body 301; Return spring 302; Suction solenoid valve 303; Positioning bolt 304; Wheel 305; Upper suspension eye 306; Lower suspension eye 307; Groove 308; Through slot 309; Side plate 310; Position sensor 4; Bearing seat 5; Threaded rod 6; First motor 7; Reduction gear 8; Bolt setting motor 9; Bolt setting oil pump 10; Battery 11; Power supply cabinet 12; Solar panel 13; Weight sensor 14; First crane 15; Second crane 16; Hoist 17; Counterweight box 18; Counterweight compartment 1801; Counterweight block 1802. Specific embodiment: Design form 1:

[0037] As in Fig. In Figure 1-7, a new adjustable multi-purpose lifting beam comprises two parallel main beams, the two ends of which are connected to an end beam 2. The main beams are provided with several sliding hangers 3 that slide relative to them. A threaded rod 6 is provided between the two main beams, to which the sliding hangers are bolted. A first motor 7 is provided at one end of the threaded rod 6. A reduction gear 8 is provided between the first motor 7 and the threaded rod 6. One end of the threaded rod 6 is connected to the reduction gear 8. The first motor 7 and the reduction gear 8 are mounted on the end beam 2. The resulting structure indicates that two main beams 1 and two end beams 2 are connected at both ends to form a stable overall structure.The main and end beams combine performance characteristics and can be lightweight and stable structures, such as box girders or I-beams. Preferably, two parallel box girders are used as the main beam, and the ends are connected by box end beams to form a stable overall structure. Multiple sliding hangers 3 allow for dynamic adjustment of the main girder 1 and the lifting of several different loads or counterweight boxes beneath the beam assembly. The beam assembly is capable of continuously gathering information about the position of the sliding hanger to which the crane hook is attached, as well as the position and lifting weight of the sliding hanger to which the load or counterweight is attached.Then, through the automatic calculation of the control system based on ensuring dynamic equilibrium, the sliding mechanism is driven to slide on the main girder to adjust the force arm of the load or counterweight box, in order to establish a moment equilibrium between the suspended load or between the load and the counterweight box, thus fulfilling the needs of various types and occasions that are difficult to meet with fixed lifting point traverses, such as dynamic lifting with variable amplitude of several machines, lifting with one or more machines with extended amplitude, lifting with a shallow cavity, rotating a single machine in the air, adjusting the lifting point of several cranes to each other or lifting with a full load, simultaneous lifting and unloading of several elevators, dynamic adjustment of the crane lifting point in the air, etc.

[0038] This device is well-suited for the dynamic adjustment of crane lifting points. When the crane's upper lifting point is adjusted, the sliding hanger 3, the lower load blocks, and the counterweight boxes move in parallel to maintain overall dynamic equilibrium. This prevents the beam assembly from becoming unbalanced if the lower lifting point is not adjusted in parallel, which could lead to safety issues. At the same time, the lifting device offers the advantages of a simple structure, high versatility, and automatic adjustment.

[0039] In the preferred solution, receiving holes 101 are arranged on the inside of the main beam 1, the main beam 1 being provided with a beam track 102, and one of the main beams 1 being provided with a power supply cabinet 12 on the outer lifting platform, the power supply cabinet 12 being provided with a solar panel 13 and one side of the power supply cabinet 12 with a battery 11. The resulting structure indicates that the electrical control unit consists of an external control unit, a power supply cabinet 12, a solar panel 13, and a battery 11, which are located in the upper part of the main beam 1.The external control device is a device located outside the main support 1 to control various functions and movements of the main support 1 by means of wireless and other means, including control software and hardware, signal transmitting and receiving devices, and power supply devices; wherein the control device on the main support 1 is a power supply cabinet 12, a solar panel 13, and a battery 11 for the power supply cabinet 12, the power supply cabinet 12 being equipped with power supply and control-related hardware and software, signal transmitting and receiving devices, power conversion or transmission devices, and solar energy conversion control devices, the solar panel 13 on the power supply cabinet 12 serving to collect the electrical energy required for the lifting operations and, after conversion, to store it in the battery 11 for later use.

[0040] In the preferred solution, the sliding hanger 3 comprises a hanger body 301 provided with a through-slot 309, wherein one or more suction solenoid valves 303 are arranged in the through-slot 309, one end of the suction solenoid valve 303 being connected to a groove 308, another end of the suction solenoid valve 303 being attached to the hanger body 301, and the groove 308 being screwed to the threaded rod 6. The resulting structure indicates that the threaded rod 6 controls one or more sets of sliding hangers 3, wherein the threaded rod 6 is provided with a helical thread and the groove 308 is provided with an arc and thread matching the threaded rod 6 to enable an effective combination of the threaded rod 6 and the groove 308.A suction solenoid valve 303 is arranged on both the groove 308 and the base part. Upon a command from the electrical control device, the suction solenoid valve 303 is drawn in and then drives the groove 308 to disengage from the threaded rod 6, thus stopping the movement of the sliding hanger 3; or the first motor 7 stops rotating, and consequently the threaded rod 6 also stops rotating, which likewise stops the movement of the sliding hanger 3. The first motor 7 is preferably an inverter motor, so that the left and right sides of the threaded rod 6 can rotate at different speeds and thus drive the sliding hanger 3 at different speeds.

[0041] In the preferred solution, a return spring 302 is provided between the groove 308 and the hanger body 301, with an upper suspension eye 306 on the top of the hanger body 301 and a lower suspension eye 307 on the underside of the hanger body 301. The resulting structure indicates that the return spring 302, by spring pressure, presses the groove 308 into contact with the threaded rod 6, so that the rotating threaded rod 6 moves the sliding hanger 3. The upper suspension eyes 306 on the top of the hanger body 301 are connected to the crane hook, while the lower suspension eyes 307 on the underside of the hanger body 301 can be connected, as required, to the counterweight, the lifting weight via a wire rope, or a remotely controlled electric winch.

[0042] In the preferred solution, a telescopically displaceable positioning bolt 304 is provided on both sides of the hanger body 301, wherein a bolt setting motor 9 is provided on the hanger body 301, wherein a bolt setting oil pump 10 is provided at one end of the bolt setting motor 9, which is connected to the positioning bolt 304 by means of a telescopically displaceable oil cylinder;

[0043] the positioning bolts 304 are in contact with the receiving holes 101 when the positioning bolts 304 are extended on both sides of the hanger body 301. The resulting structure indicates that the electrical control device issues a control command when the sliding hanger 3 reaches the working position to send an action command to the bolt setting motor 9 and the bolt setting oil pump 10 so that the positioning bolt 304 is driven into the receiving hole 101 of the main beam 1 to prevent displacement during the lifting operation.

[0044] In the preferred solution, the hanger body 301 is provided on both sides with several side plates 310, on which a wheel 305 is arranged and articulated to the side plate 310. The wheel 305 slides against the beam track 102. The hanger body 301 is equipped with a position sensor 4 and a weight sensor 14. The resulting structure allows the sliding hanger 3 to be moved on the main beam 1 by means of the wheels 305. The sliding hanger 3 is equipped with a position sensor 4 that confirms whether the sliding hanger has reached the predetermined position. The sliding hanger 3 is also equipped with a weight sensor 14 that dynamically indicates the weight of the load and transmits this information to the electrical control unit in order to dynamically and appropriately adjust the torque of the load or counterweight box 18.

[0045] In the preferred solution, one or more threaded rods 6 are provided between the two main beams 1, wherein a bearing seat 5 is provided between the two main beams 1, which is arranged in the central or eccentric position of the main beam, wherein a bearing is arranged at the bearing seat 5, and wherein the threaded rod 6 is rotatably connected to the bearing seat 5. The resulting structure indicates that, depending on the application, one or more threaded rods 6 and a first motor 7 and a reduction gear 8 can be used, since a single threaded rod can only drive several sliding hangers 3 and lifting points at the same speed, but not one or more of them individually.The use of two or more threaded rods 6 ensures that they can drive different sliding hangers 3 and lifting points at different speeds, thus performing synchronous movements with the same torque ratio and corresponding speeds on the left and right sides of the main beam 1. This ensures a balance of torque on the left and right sides of the main beam 1. A bearing seat 5 is located in the central or off-center position of the main beam 1. The bearing seat 5 contains bearings matched to the number of threaded rods 6 to support the rotation of the left or right multiple of threaded rods 6.Preferably, the bearing seat 5 is arranged in a non-central position of the main beam 1 to allow the lifting of the sliding hanger 3 into the central part of the main beam 1 and to avoid the bearing seat 5 in the central part of the main beam 1 interfering with the positioning of the sliding hanger 3 in the central part of the main beam 1, which is an important and frequently used lifting position of the beam lifting device. Design 2:

[0046] As in connection with Example 1 in the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 to Fig. As shown in Figure 8, the crane must extend the lifting situation outwards to further increase the working range of the crane. This patent allows for a partial extension of the lifting range in cases where the existing crane range does not meet the lifting requirements. The method is to raise the first crane 15 into the air and connect the first crane 15 to at least two of the sliding hangers 3 on the beam device; suspend a counterweight box 18 or at least one load piece from the underside of at least two sliding hangers 3 to the beam device and add several counterweight blocks 1802 to the counterweight compartment 1801 of the counterweight box 18;The first crane 15 is raised and the power supply control cabinet 12 is controlled; the sliding suspension 3, from which the weight and counterweight box 18 is suspended, is driven with the same torque until the first crane 15 transports the load into the unloading position, where it must be extended outwards to unload the load; meanwhile, the manual or automatic control of the power supply control cabinet 12 is operated in parallel to adjust the overall position of the structure and maintain balance; then the first crane 15 is lowered and the counterweight box 18 and the lifting device are unloaded to complete the lifting operation. This procedure allows the lifting operation to extend beyond the length of the crane arm of the first crane 15.

[0047] By extending the lifting method outwards, it is possible to lift shallow holes in the side walls, which was difficult to achieve with the original lifting device, thus creating a simple, lightweight and safe idea and device for solving such technical problems. Design 3:

[0048] As in Fig. Figures 1 to 5 and 16 further show in conjunction with embodiment 1 that several cranes are used to adjust the lifting points so that a full load is balanced or lifted by manually or automatically controlling the movement of the power supply switch cabinet 12 according to the principle of uniform torque distribution depending on the weight of the load to be lifted in combination with the required reach of the first crane 15 and the second crane 16 to lift and lower the load, and controlling the position of the first crane 15, the second crane 16 and the sliding hangers 3 connected for lifting the load piece in order to achieve the effect of balancing the lifting load of the first crane 15 and the second crane 16 or even the optimal effect of matching different models of the first crane 15 and the second crane 16 or lifting all at full load.This improves safety during lifting and transport and maximizes the crane's lifting capacity. Under lifting conditions involving two or more cranes, the lifting point of the lifting device is not adjustable due to the fixed lifting point; the lever arm of the lifting point remains unchanged, and the combined lifting weight of the cranes involved cannot be adjusted, often resulting in one crane being fully loaded. Design 4:

[0049] This is further illustrated in connection with embodiment 1, in which several load pieces are lifted simultaneously and unloaded step by step, as shown in Fig. Figures 1 to 6 and 9 to 11 show that S1. the first crane 15 is lifted into the air and connected to two of the sliding hangers 3 on the beam device; S2. a counterweight box 18 or at least two load pieces are suspended from the underside of at least three sliding hangers 3 on the beam device and several counterweight blocks 1802 are added to the counterweight compartment 1801 of the counterweight box 18 according to a prior calculation or an automatic calculation by the program; S3. the first crane 15 is lifted and manual or automatic control by the program of the power supply control cabinet 12 is performed to move the sliding hanger 3 with the load piece or the counterweight box 18 on the main beam 1 in order to adjust the position of the overall structure in the air and to maintain dynamic equilibrium; S4.The first crane 15 transports the load piece 1 to the unloading position and unloads it, while dynamically controlling the power supply switch cabinet 12 and adjusting the position of the counterweight box 18, the overall position of the structure and maintaining balance; then S4 repeats until the other load pieces have been unloaded one after the other; lowers the first crane 15 and unloads the counterweight box 18 to complete the lifting operation.

[0050] General lifting operations are performed in such a way that only one object is lifted per lifting cycle. In some special cases, where multiple objects need to be lifted simultaneously and positioned in separate cycles, the standard lifting beam is unable to maintain dynamic equilibrium during the partial unloading process, thus failing to fulfill this function. For example, the vehicle or location for transporting the object being lifted must be maximized to minimize the occupancy; lifting equipment that lifts objects simultaneously while walking to reduce the load also falls into this category, specifically, such as suspending a cable reel or a mobile crane laying down the cable while walking. Design 5:

[0051] This is further illustrated in connection with embodiment 1, as shown in Fig. As shown in Figures 1 to 5 and 13 to 15, a crane is used to turn the load in the air. If the lifting beam device in this invention is not used, at least two cranes must be used to turn the load in the air. The method in the invention is to connect the first crane 15 to the upper suspension eyes 306 on the two sliding hangers 3; to connect each end of the load to be turned in a flat position to the lower suspension eyes 307 of the two other sliding hangers 3; and to attach a remotely controlled electric hoist 17 to the connecting loop of one of the lower suspension eyes 307.The first crane 15 is lifted, the wireless remote control of the electric hoist 17 is used to attach the reverse chain rope of the electric hoist 17, while controlling the power supply switch cabinet 12, the sliding hangers 3 at the other end of the tethered load on the main beam 1 are moved to the sliding hanger 3 near this end of the load in order to slowly adjust the load in the air from the flat state to the vertical state, while during the turning process the center of gravity of the load remains as far as possible in the original vertical line, continuing to adjust in the above manner until the wire rope of the electric hoist 17 is in the state of no force and the load is also in the vertical state, then the turning is completed. The lifting is completed by the first crane 15, which unloads the load. Design 6:

[0052] This is discussed in connection with embodiment, as in Fig.As shown in Figures 1 to 5 and 16, the lifting point of the crane is dynamically adjusted in the air. When two cranes are involved in a lifting operation, if one is needed to position a load, the crane's reach increases, and the safety problem of overloading can occur. Therefore, more than one crane, using a fixed lifting point and lifting the load, must generally control the reach strictly to avoid overloading. The present device and method are well suited for the dynamic adjustment of crane lifting points while the position of the upper suspension eyes 306 on the sliding hanger 3 connected to the first crane 15 and the second crane 16 is being adjusted or the amplitude is being changed.The control program built into the power supply cabinet 12 can also control the movement of the sliding hanger 3 and the load underneath it, either manually or automatically, based on previously entered parameters, the lifting capacity of the first crane 15 and the second crane 16, the weight of the load, and changes in the position or amplitude of the lifting point of the first crane 15 and the second crane 16. This is achieved through synchronous calculation by the control program built into the power supply cabinet 12 and the set parameters. By dynamically maintaining the body in equilibrium, the loss of balance of the lifting beams and associated safety problems can be avoided.

[0053] The embodiments mentioned above are merely preferred technical solutions of the present invention and should not be considered as limiting the present invention. The scope of protection of the present invention includes the technical solutions listed in the claims, including equivalent substitutions of technical features listed in the claims. This means that equivalent substitution improvements within this scope of protection also fall within the scope of protection of the present invention.

Claims

[1] new adjustable multi-purpose lifting beam, characterized by that the lifting beam comprises two parallel main beams (1), wherein the two ends of the two main beams (1) are connected to an end beam (2), and wherein the main beams (1) are provided with several sliding hangers (3) relative to the main beams (1), wherein a threaded rod (6) is provided between the two main beams (1) to which the sliding hangers are bolted, wherein a first motor (7) is provided at one end of the threaded rod (6), wherein a reduction gear (8) is provided between the first motor (7) and the threaded rod (6), and wherein one end of the threaded rod (6) is connected to the reduction gear (8), and wherein the first motor (7) and the reduction gear (8) are mounted on the end beam (2). [2] novel adjustable multi-purpose lifting beam according to claim 1, characterized by, that several receiving holes (101) are arranged on the inside of the main beam (1), wherein the main beam (1) is provided with a beam track (102), and wherein one of the main beams (1) is provided with a power supply cabinet (12) on the outer lifting platform, wherein the power supply cabinet (12) is provided with a solar panel (13) and one side of the power supply cabinet (12) is provided with a battery (11). [3] novel adjustable multi-purpose lifting beam according to claim 1, characterized by , that the sliding hanger (3) comprises a hanger body (301) which is provided with a through-slot (309), wherein at least one suction solenoid valve (303) is arranged in the through-slot (309), wherein one end of the suction solenoid valve (303) is connected to a groove (308), wherein another end of the suction solenoid valve (303) is attached to the hanger body (301) and the groove (308) is screwed to the threaded rod (6). [4] new adjustable multi-purpose lifting beam according to claim 3, characterized by , that a return spring (302) is provided between the groove (308) and the hanger body (301), wherein an upper suspension eyelet (306) is provided on the top of the hanger body (301) and a lower suspension eyelet (307) is provided on the bottom of the hanger body (301). [5] new adjustable multi-purpose lifting beam according to claim 3, characterized by , that a telescopically displaceable positioning bolt (304) is provided on both sides of the hanger body (301), wherein a bolt setting motor (9) is provided on the hanger body (301), wherein a bolt setting oil pump (10) is provided at one end of the bolt setting motor (9), which is connected to the positioning bolt (304) by means of a telescopically displaceable oil cylinder; wherein the positioning bolts (304) are in contact with the receiving holes (101) when the positioning bolts (304) are extended on both sides of the hanger body (301). [6] new adjustable multi-purpose lifting beam according to claim 3, characterized by , that the hanger body (301) is provided on both sides with several side plates (310) on which a running wheel (305) is articulated to the side plate (310) and slides against the beam track (102), wherein the hanger body (301) is provided with a position sensor (4) and a weight sensor (14). [7] novel adjustable multi-purpose lifting beam according to claim 1, characterized by , that at least one threaded rod (6) is provided between the two main beams (1), wherein a bearing seat (5) is provided between the two main beams (1), which is arranged in the central or eccentric position of the main beam, wherein a bearing is arranged at the bearing seat (5), wherein the threaded rod (6) is rotatably connected to the bearing seat (5). [8] Lifting method for a new adjustable multi-purpose lifting beam according to any one of claims 1 to 7, wherein the method, when using a single first crane (15), consists in the fact that S1. raises the hook of the first crane (15) into the air and connects the first crane (15) to two of the sliding hangers (3) on the beam device; S2. suspends a counterweight box (18) or at least one load piece from the underside of at least two sliding hangers (3) to the beam device and adds a calculated suitable number of counterweight blocks (1802) to the counterweight compartment (1801) of the counterweight box (18) by means of a suitable calculation or automatic program calculation; S3. lifts the first crane (15) and controls the power supply switch cabinet (12) manually or automatically according to a program by a system to move the sliding hanger (3) with the load piece and the counterweight box (18) at the same moment on the main beam (1) in order to adjust the position of the lifting beam device in the air and to maintain dynamic equilibrium; S4. with the first crane (15) lifts the load into the target position and then unhooks it, while at any time manually or by a system according to a program controls the power supply switch cabinet (12), and adjusts the position of the lifting beam device to maintain the dynamic balance. S5. Repeat step S4 until the load is unloaded. S6. drops the hook of the first crane (15) and unloads the counterweight box (18) to complete the lifting operation. [9] Lifting method for a new adjustable multi-purpose lifting beam according to claim 8, characterized by that one S1. raises the hook of the first crane (15) into the air and connects one or more cranes with several sliding hangers (3) to the beam device; S2. suspends a counterweight box (18) and one or more load pieces from the underside of several sliding hangers (3) to the beam device and adds a calculated suitable number of counterweight blocks (1802) to the counterweight compartment (1801) of the counterweight box (18) by means of a suitable calculation or automatic program calculation; S3. lifts the crane, controls the power supply switch cabinet (12) manually or automatically via a system and according to a program to move the sliding hanger (3), which serves to attach the crane hook, the suspended counterweight box (18) or the load piece, moment-adapted on the main beam (1), and to dynamically adjust the relative position of the crane hook, the counterweight box or the load piece on the beam in the air and to maintain dynamic equilibrium; S4. lifts one of the suspended load pieces into the target position with the crane and then unhooks it, while manually or automatically controlling the power supply switch cabinet (12) according to a program, and adjusting the position of the lifting beam device to maintain dynamic equilibrium. S5. repeats steps S3 and S4 and then lifts another load into the target position and unhooks it until the weight is relieved; S6. drops the hook of the crane and unloads the counterweight box (18) to complete the lifting operation. [10] Lifting method for a new adjustable multi-purpose lifting beam according to claim 8, characterized by that one S1. raises the hooks of one or more cranes into the air and connects the crane to the upper suspension eyes (306) on the lifting hanger (3); S2. connects both ends of the load to the lower suspension eyes (307) of two of the sliding hangers (3) by means of a wire rope, wherein a remotely controlled hoist (17) is mounted on the support rope which connects one of the ends of the load to the lower suspension eyes (307) of the sliding hanger (3). S3. controls the power supply cabinet (12) manually or automatically by the system according to the program to move the sliding hanger (3) with the load on the main beam (1) in order to keep the center of gravity of the load in the vertical position determined by the calculation of the lifting beam device, and thus maintain dynamic equilibrium, and simultaneously, with the aid of the wireless remote control of the hoist (17), retracts the wire rope until the wire rope of the hoist (17) is slack and the load is in a vertical position and the transfer is completed; S4. moves the first crane (15) and the second crane (16) into the drop hook position to unload the load and complete the lifting operation.

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