Energy-saving hoisting system

Abstract

The invention relates to the technical field of hoisting, and discloses an energy-saving hoisting system which comprises a supporting module, a cable rotating saddle module, a cable module, a hoisting module and two anchoring modules, the supporting module comprises a support and a reverse jacking steel box girder, the support is installed on a cross beam, and the reverse jacking steel box girder is installed on the support; the cable rotating saddle module comprises a second-layer traction cable pulley block, a hoisting cable pulley block, a first-layer traction cable pulley block and a bearing cable pulley block. Through the arrangement of the cable rotating saddle module, the rear anchor points of the hoisting cable and the traction cable can be directly anchored on the cross beam where the cable rotating saddle module is located, the material length and the circulation path of the hoisting cable and the traction cable are greatly shortened, and therefore the material input of the hoisting cable and the traction cable is reduced; and meanwhile, the circulating path is shortened, so that the winding and unwinding time of the winch unit is shortened during hoisting operation, and the material cost, the working time cost and the energy consumption cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting, and particularly to an energy-saving hoisting system. Background Art

[0002] In the field of bridge construction, suspension bridges are widely used in projects spanning complex terrains due to their unique structural advantages. During the construction of suspension bridges, the hoisting of steel girders is a key link, and the cable crane rotating saddle system plays a crucial role. The commonly used cable crane rotating saddle system mainly consists of a saddle body, a pulley block, cables, piers, and anchoring devices, etc. The saddle body is the core component, bearing the weight and acting forces of the entire system. Its working principle is through the coordinated operation of each component, using the pulley block to change the direction of the rope and the transmission of force, and realizing the hoisting of the steel girder through the lifting device arranged on the rope. During the hoisting process, the hoisting rope is connected to the heavy object, and the lifting and lowering of the heavy object are achieved through the winding and unwinding of the hoisting rope pulley block. The towing rope, with the help of the towing rope pulley block, drives the entire hoisting device to move horizontally, so as to accurately install the steel girder in place.

[0003] However, in the prior art, the following problems exist:

[0004] When anchoring the rear anchor points of the towing rope and the hoisting rope in the prior art, the rear anchor points of the towing rope and the hoisting rope are usually set on the ground on both banks, resulting in a relatively long circulating path for the towing rope and the hoisting rope. The actual available length of the towing rope and the hoisting rope accounts for a relatively low proportion. The long-distance circulating path increases the winding and unwinding time, improves the energy consumption generated by the hoisting operation, also increases the wear of the towing rope and the hoisting rope, shortens their service life, and increases the material cost, man-hour cost, and operation cost. Summary of the Invention

[0005] The purpose of the present invention is to provide an energy-saving hoisting system to solve the above problems, and to overcome the defect that the rear anchor points of the towing rope and the hoisting rope in the prior art are anchored on the shore, resulting in a longer material length, thereby increasing the material cost and operation cost and reducing the work efficiency, as described in detail below.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An energy-saving hoisting system provided by the present invention includes a support module, a swivel saddle module, a cable module, a hoisting module and two anchoring modules. The support module includes a support and a jacking steel box girder. The support is installed on a cross beam, and the jacking steel box girder is installed on the support. The swivel saddle module includes a second-layer traction cable pulley group, a hoisting cable pulley group, a first-layer traction cable pulley group and a load-bearing cable pulley group. The second-layer traction cable pulley group, the hoisting cable pulley group, the first-layer traction cable pulley group and the load-bearing cable pulley group are respectively provided with mounting frames. The second-layer traction cable pulley group is connected to the top of the jacking steel box girder. The hoisting cable pulley group is connected to the top of the second-layer traction cable pulley group. The first-layer traction cable pulley group is connected to the top of the hoisting cable pulley group. The load-bearing cable pulley group is connected to the top of the first-layer traction cable pulley group. The swivel saddle module further includes a winch unit and a rear anchor point anchoring device, and both the winch unit and the rear anchor point anchoring device are installed on the cross beam.

[0008] Preferably, the cable module includes a load-bearing cable, a traction cable and a hoisting cable. The two anchoring modules are respectively arranged on the opposite banks on both sides of the cross beam. The two ends of the load-bearing cable are respectively connected to the two anchoring modules, and the middle section of the load-bearing cable is connected to the top of the load-bearing cable pulley group through a pulley.

[0009] Preferably, the hoisting module includes a trolley, a hoisting pulley group and a sling. The trolley is rollingly installed on the load-bearing cable, and the hoisting pulley group is installed in the trolley.

[0010] Preferably, one end of the traction cable is connected to the rear anchor point anchoring device, the other end of the traction cable is connected to the trolley, and a section of the traction cable close to the rear anchor point anchoring device is wound and connected to the winch unit.

[0011] Preferably, the traction cable penetrates through the first-layer traction cable pulley group and the second-layer traction cable pulley group in a horizontal U shape, and the traction cable is connected to the first-layer traction cable pulley group and the second-layer traction cable pulley group through pulleys.

[0012] Preferably, one end of the hoisting cable is connected to the rear anchor point anchoring device, the other end of the hoisting cable is connected to the sling, a section of the hoisting cable close to the rear anchor point anchoring device is wound and connected to the winch unit, a section of the hoisting cable close to the sling is slidably connected to the hoisting pulley group through a pulley, and the sling is suspended under the trolley through the hoisting cable.

[0013] Preferably, the hoisting cable is wound around the hoisting cable pulley group in a horizontal U shape, the hoisting cable is slidably connected to the hoisting cable pulley group through a pulley, and the hoisting cable on the hoisting cable pulley group is located inside the traction cables on the first-layer traction cable pulley group and the second-layer traction cable pulley group.

[0014] Preferably, a kinetic energy recovery module and a cleaning module are provided in the sports car. The kinetic energy recovery module includes a power generation device and an energy storage device. A wheel is provided at the connection between the sports car and the load-bearing cable. The power generation device is connected to the wheel of the sports car. The energy storage device is electrically connected to the power generation device, and the energy storage device is electrically connected to the power supply system of the hoisting unit.

[0015] Preferably, the cleaning module includes a cleaning device and an ice removal device. The cleaning device is connected to one end of the sports car. The cleaning device is provided with a circular cleaning brush which contacts the outer wall of the load-bearing cable. The ice removal device includes a temperature sensor, a rain and snow sensor and an ice removal hammer. The temperature sensor and the rain and snow sensor are both connected to the ice removal hammer, and the ice removal hammer is electrically connected to the energy storage device.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0017] 1. In this energy-saving hoisting system, through the setting of the rotating saddle module, the rear anchor points of the hoisting cable and the towing cable can be directly anchored on the cross beam where the rotating saddle module is located, greatly shortening the material length and circulation path of the hoisting cable and the towing cable, thereby reducing the material input of the hoisting cable and the towing cable. At the same time, shortening the circulation path makes the retracting and releasing time of the hoisting unit shorter during the hoisting operation, improving the hoisting efficiency per unit time and reducing the material cost, man-hour cost and energy consumption cost.

[0018] 2. In this energy-saving hoisting system, through the guiding of the hoisting cable by the hoisting cable pulley block and the guiding of the towing cable by the first-layer towing cable pulley block and the second-layer towing cable pulley block, the hoisting cable and the towing cable are fixed on two different movement paths and can work without interference during actual operation, avoiding the situation of movement interference, reducing the occurrence probability of equipment failures, reducing the maintenance cost. At the same time, the clear layout also facilitates the operator to observe and operate, improving the safety and efficiency of the hoisting operation.

[0019] 3. In this energy-saving hoisting system, through the hierarchically arranged second-layer towing cable pulley block, hoisting cable pulley block, first-layer towing cable pulley block and load-bearing cable pulley block, the movements of the second-layer towing cable pulley block, hoisting cable pulley block, first-layer towing cable pulley block and load-bearing cable pulley block are independent of each other and cooperate with each other, improving the operation flexibility and accuracy of the hoisting system. The setting of modular prefabricated components improves the assembly convenience and efficiency, and also facilitates later maintenance and replacement.

[0020] 4. The energy-saving hoisting system, through the setting of the kinetic energy recovery module, enables the power generation device to convert the kinetic energy during the movement of the trolley into electric energy for storage and utilization, reducing the consumption of external energy, making full use of the kinetic energy that would otherwise be wasted, enabling more efficient use of energy, and achieving the effect of energy conservation; through the setting of the cleaning module, the cleaning device can follow the movement of the trolley to remove dust and debris on the load-bearing cable, reducing the wear and corrosion of the load-bearing cable by dirt, and at the same time reducing the resistance during the movement of the trolley. The de-icing device can automatically remove the ice layer on the load-bearing cable in low-temperature rain and snow environments, avoiding safety hazards such as the trolley being blocked or sliding due to the ice layer, reducing kinetic energy waste, further saving energy, and ensuring the safe progress of the hoisting operation. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 is the overall structural schematic diagram of the present invention;

[0023] Figure 2 is the front view of the rotating cable saddle module of the present invention;

[0024] Figure 3 is the side view of the rotating cable saddle module of the present invention;

[0025] Figure 4 is the schematic diagram of the rear anchor point anchoring device of the present invention;

[0026] Figure 5 is the structural schematic diagram of the cable module of the present invention;

[0027] Figure 6 is the structural schematic diagram of the hoisting module of the present invention;

[0028] Figure 7 is the structural schematic diagram of the kinetic energy recovery module and the cleaning module of the present invention.

[0029] The description of the reference numerals in the drawings is as follows: 1. Support; 2. Anti-top steel box girder; 3. Second-layer traction cable pulley group; 4. Hoisting cable pulley group; 5. First-layer traction cable pulley group; 6. Load-bearing cable pulley group. Detailed Embodiments

[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope protected by the present invention.

[0031] Embodiment 1

[0032] Please refer to Figure 1 - Figure 6 , an energy-saving hoisting system, including a support module, a swivel saddle module, a cable module, a hoisting module, and two anchoring modules. The support module includes a support 1 and a reaction steel box girder 2. The support 1 is installed on the cross beam, and the reaction steel box girder 2 is installed on the support 1. The support 1, as the basic component of the support, evenly distributes the weight it bears to the cross beam. The cross beam is the main load-bearing structure of the bridge and has strong load-bearing capacity. After the support 1 is installed on the cross beam, it provides a stable support platform for the reaction steel box girder 2. The reaction steel box girder 2 further plays a role in dispersing and transmitting the load. It evenly transmits the force from the components such as the upper swivel saddle module to the support 1, and then is transmitted by the support 1 to the cross beam to ensure the stability of the entire hoisting system during the working process.

[0033] Furthermore, the swivel saddle module includes a two-layer towing cable pulley group 3, a hoisting cable pulley group 4, a one-layer towing cable pulley group 5, and a load-bearing cable pulley group 6. The two-layer towing cable pulley group 3, the hoisting cable pulley group 4, the one-layer towing cable pulley group 5, and the load-bearing cable pulley group 6 are respectively provided with installation frames. The two-layer towing cable pulley group 3 is connected to the top of the reaction steel box girder 2. The hoisting cable pulley group 4 is connected to the top of the two-layer towing cable pulley group 3. The one-layer towing cable pulley group 5 is connected to the top of the hoisting cable pulley group 4. The load-bearing cable pulley group 6 is connected to the top of the one-layer towing cable pulley group 5. The two-layer towing cable pulley group 3, the hoisting cable pulley group 4, the one-layer towing cable pulley group 5, and the load-bearing cable pulley group 6 are all modular prefabricated components. During assembly, they are hoisted sequentially from bottom to top by a tower crane. The assembly process is relatively simple and the assembly efficiency is relatively high. The swivel saddle module also includes a winch unit and a rear anchor point anchoring device. The winch unit and the rear anchor point anchoring device are both installed on the cross beam and are both arranged near the support 1. The winch unit is provided with two reels, and the two reels can be independently controlled. Through the layered two-layer towing cable pulley group 3, the hoisting cable pulley group 4, the one-layer towing cable pulley group 5, and the load-bearing cable pulley group 6, the movements of the two-layer towing cable pulley group 3, the hoisting cable pulley group 4, the one-layer towing cable pulley group 5, and the load-bearing cable pulley group 6 are independent of each other and cooperate with each other, improving the operation flexibility and accuracy of the hoisting system. The setting of the modular prefabricated components improves the convenience and efficiency of assembly and is also convenient for later maintenance and replacement.

[0034] Furthermore, the cable module includes a load-bearing cable, a towing cable, and a hoisting cable. Two anchoring modules are respectively arranged on the opposite sides of the crossbeam on the shore. Both ends of the load-bearing cable are respectively connected to the two anchoring modules. The middle section of the load-bearing cable is connected to the top of the load-bearing cable pulley block 6 through a pulley. The load-bearing cable, the load-bearing cable pulley block 6, and the two anchoring modules form a stable support structure. When the load-bearing cable bears weight, it can slide to a certain extent on the load-bearing cable pulley block 6, so that when the load-bearing cable contracts and moves due to external force factors and thermal expansion and contraction factors, the friction between the load-bearing cable and the load-bearing cable pulley block 6 is relatively low, thereby reducing the wear of the load-bearing cable and extending its service life.

[0035] It should be noted that the hoisting module includes a carriage, a hoisting pulley block, and a lifting tool. The carriage is rolling-mounted on the load-bearing cable. The hoisting pulley block is installed in the carriage. One end of the towing cable is connected to the rear anchor point anchoring device, and the other end of the towing cable is connected to the carriage. A section of the towing cable close to the rear anchor point anchoring device is wound and connected to the winch unit. The towing cable passes horizontally through the first-layer towing cable pulley block 5 and the second-layer towing cable pulley block 3 in a U shape, and the towing cable is connected to the first-layer towing cable pulley block 5 and the second-layer towing cable pulley block 3 through pulleys. When the winch unit works to wind the towing cable, through the guiding action of the first-layer towing cable pulley block 5 and the second-layer towing cable pulley block 3, the towing cable pulls the carriage to move along the load-bearing cable, achieving the effect of the carriage moving horizontally. By anchoring the rear anchor point of the towing cable on the anchor point anchoring device, different from the prior art method of anchoring the rear anchor point of the towing cable on the shore, the overall length of the towing cable is shortened, so that the circulation path of the towing cable is shortened, the material input of the towing cable is reduced, the retracting and releasing time of the winch unit and the towing cable during towing is shortened, thereby shortening the working hours, and at the same time, the energy consumption is also reduced.

[0036] It should be explained that one end of the hoisting cable is connected to the rear anchor point anchoring device, and the other end of the hoisting cable is connected to the lifting tool. A section of the hoisting cable close to the rear anchor point anchoring device is wound and connected to the winch unit. A section of the hoisting cable close to the lifting tool is slidably connected to the hoisting pulley block through a pulley. The lifting tool is suspended under the carriage through the hoisting cable. The hoisting cable is wound horizontally around the hoisting cable pulley block 4 in a U shape, and the hoisting cable is slidably connected to the hoisting cable pulley block 4 through a pulley. When the winch unit retracts and releases the hoisting cable, through the cooperation of the hoisting cable pulley block 4 and the hoisting pulley block, the lifting operation of the lifting tool is realized. Through the cooperation of the lifting tool and the carriage, the lifting tool can move in four directions of up, down, left, and right to perform hoisting operations. By anchoring the rear anchor point of the hoisting cable on the anchor point anchoring device, different from the prior art method of anchoring the rear anchor point of the hoisting cable on the shore, the overall length of the hoisting cable is shortened, so that the circulation path of the hoisting cable is shortened, the material input of the hoisting cable is reduced, the retracting and releasing time of the winch unit and the hoisting cable during hoisting operations is shortened, thereby shortening the working hours, and at the same time, the energy consumption is also reduced.

[0037] It is worth mentioning that the hoisting cable on the hoisting cable pulley block 4 is located inside the towing cables on the first-layer towing cable pulley block 5 and the second-layer towing cable pulley block 3. By setting the hoisting cable inside the towing cables and through the guiding of the hoisting cable by the hoisting cable pulley block 4 and the guiding of the towing cables by the first-layer towing cable pulley block 5 and the second-layer towing cable pulley block 3, the hoisting cable and the towing cables are fixed on two different movement paths, so that they do not interfere with each other during actual operation, avoiding the occurrence of movement interference, reducing the probability of equipment failure, and lowering the maintenance cost. At the same time, the clear layout also facilitates the operator's observation and operation, improving the safety and efficiency of the hoisting operation.

[0038] In addition, a kinetic energy recovery module and a cleaning module are provided in the sports car. The kinetic energy recovery module includes a power generation device and an energy storage device. Wheels are provided at the connection between the sports car and the load-bearing cable. The power generation device is connected to the wheels of the sports car, the energy storage device is electrically connected to the power generation device, and the energy storage device is electrically connected to the power supply system of the hoisting unit. When the sports car moves on the load-bearing cable, the wheels rotate accordingly. Since the power generation device is connected to the wheels of the sports car, the rotation of the wheels drives the power generation device to operate. The power generation device converts mechanical energy into electrical energy, and the generated electrical energy is transmitted to the energy storage device for storage. When the power supply system of the hoisting unit needs additional power, the energy storage device can supply power to it, realizing the recovery and reuse of energy and achieving the effect of energy conservation.

[0039] In addition, the cleaning module includes a cleaning device and a deicing device. The cleaning device is connected to one end of the sports car. The cleaning device is provided with a circular cleaning brush, and the circular cleaning brush contacts the outer wall of the load-bearing cable. When the sports car moves on the load-bearing cable, the cleaning device connected to one end of the sports car moves accordingly, and the circular cleaning brush wipes and cleans the outer wall of the load-bearing cable, removing dust, debris, etc. attached to the load-bearing cable, avoiding that after the load-bearing cable is used for a long time, more dirt adheres to its surface and causes resistance to the movement of the sports car, thereby increasing energy consumption; the deicing device includes a temperature sensor, a rain and snow sensor, and a deicing hammer. Both the temperature sensor and the rain and snow sensor are connected to the deicing hammer, and the deicing hammer is electrically connected to the energy storage device. The temperature sensor monitors the ambient temperature in real time, and the rain and snow sensor monitors the weather conditions. When the temperature sensor monitors that the ambient temperature is lower than the set freezing point, it sends a signal to the deicing hammer. When the rain and snow sensor monitors rain or snow, it sends a signal to the deicing hammer. After the deicing hammer receives the signals from both the temperature sensor and the rain and snow sensor at the same time, it obtains electrical energy from the energy storage device and starts to work. By knocking on the load-bearing cable, the ice layer on the load-bearing cable is broken, preventing the surface of the load-bearing cable from being covered with ice and causing the sports car to slip, resulting in waste of kinetic energy.

[0040] With the above structure, the working principle of this case is as follows: during the hoisting operation, the winch unit is started. The winch unit is provided with two reels, and the two reels are respectively wound and connected to the towing cable and the load-bearing cable. The two reels can be independently controlled. The part of the towing cable close to the rear anchor device is wound and pulled by the winch unit. Since one end of the towing cable is fixed to the rear anchor device and the other end is connected to the trolley, and it passes through the first-layer towing cable pulley block 5 and the second-layer towing cable pulley block 3 in a horizontal U shape, under the guiding action of the pulley block, the towing cable drives the trolley to start horizontal movement on the load-bearing cable. At the same time, if it is necessary to adjust the height of the lifting tool, the winch unit winds the hoisting cable. One end of the hoisting cable is fixed to the rear anchor device and the other end is connected to the lifting tool, and it is wound around the hoisting cable pulley block 4 in a horizontal U shape and is connected to the lifting tool through the lifting pulley block. As the hoisting cable is retracted and released, the lifting tool realizes lifting and lowering. After the trolley moves above the hoisting target position, the hoisting cable is lowered through the winch unit, and the lifting tool and the hoisting target are lifted and lowered to the specified height to complete the precise placement. During the whole process, the load-bearing cable is fixed on both sides of the crossbeam on the opposite banks through the anchor modules at both ends, and the weight of the trolley, the lifting tool and the hoisting target is supported by means of the load-bearing cable pulley block 6. The second-layer towing cable pulley block 3, the first-layer towing cable pulley block 5 and the hoisting cable pulley block 4 cooperate to change the directions of the towing cable and the hoisting cable and the force transmission to ensure the smooth progress of the hoisting operation; through the setting of the cable-turning saddle module, the rear anchor points of the hoisting cable and the towing cable can be directly anchored on the crossbeam where the cable-turning saddle module is located, greatly shortening the material length and the circulation path of the hoisting cable and the towing cable, thereby reducing the material input of the hoisting cable and the towing cable; at the same time, shortening the circulation path makes the retraction and release time of the winch unit shorten during the hoisting operation, improving the hoisting efficiency per unit time and reducing the material cost, the man-hour cost and the energy consumption cost.

[0041] When the sports car moves on the load-bearing cable, the wheels rotate accordingly. Since the power generation device is connected to the wheels of the sports car, the rotation of the wheels drives the power generation device to operate. The power generation device converts mechanical energy into electrical energy, and the generated electrical energy is transmitted to the energy storage device for storage. When the power supply system of the hoisting unit requires additional power, the energy storage device can supply power to it, realizing the recovery and reuse of energy, and achieving the effect of energy conservation; when the sports car moves on the load-bearing cable, the cleaning device connected to one end of the sports car moves accordingly. Since the annular cleaning brush contacts the outer wall of the load-bearing cable, during the movement of the sports car, the annular cleaning brush will wipe and clean the outer wall of the load-bearing cable, removing dust, debris, etc. attached to the load-bearing cable, keeping the surface of the load-bearing cable clean, and avoiding resistance to the movement of the sports car caused by more dirt attached to the surface of the load-bearing cable after long-term use, thereby increasing energy consumption. The de-icing device includes a temperature sensor, a rain and snow sensor, and a de-icing hammer. Both the temperature sensor and the rain and snow sensor are connected to the de-icing hammer, and the de-icing hammer is electrically connected to the energy storage device. The temperature sensor monitors the ambient temperature in real time, and the rain and snow sensor monitors the weather conditions. When the temperature sensor detects that the ambient temperature is lower than the set freezing point, it will send a signal to the de-icing hammer. When the rain and snow sensor detects rain and snow, it will send a signal to the de-icing hammer. After receiving the signals from both the temperature sensor and the rain and snow sensor simultaneously, the de-icing hammer obtains electrical energy from the energy storage device and starts to work, breaking the ice layer on the load-bearing cable by knocking, preventing the surface of the load-bearing cable from being covered with ice layer and causing the sports car to slip, resulting in kinetic energy waste; through the setting of the kinetic energy recovery module, the power generation device can convert the kinetic energy during the movement of the sports car into electrical energy and store and utilize it, reducing the consumption of external energy, making full use of the kinetic energy that would otherwise be wasted, and making the energy more efficiently utilized, achieving the effect of energy conservation; through the setting of the cleaning module, the cleaning device can follow the movement of the sports car to remove dust and debris on the load-bearing cable, reducing the wear and corrosion of the load-bearing cable by dirt, and at the same time reducing the resistance during the movement of the sports car. The de-icing device can automatically remove the ice layer on the load-bearing cable in a low-temperature rain and snow environment, avoiding safety hazards such as the sports car being blocked or sliding caused by the ice layer, reducing kinetic energy waste, further saving energy, and ensuring the safe progress of the hoisting operation.

[0042] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. An energy-saving hoisting system, characterized in that: It includes a support module, a swivel saddle module, a cable module, a hoisting module and two anchoring modules. The support module includes a bearing support (1) and a jacking steel box girder (2). The bearing support (1) is installed on the cross beam, and the jacking steel box girder (2) is installed on the bearing support (1). The swivel saddle module includes a second-layer hauling cable pulley block (3), a hoisting cable pulley block (4), a first-layer hauling cable pulley block (5) and a load-bearing cable pulley block (6). The second-layer hauling cable pulley block (3), the hoisting cable pulley block (4), the first-layer hauling cable pulley block (5) and the load-bearing cable pulley block (6) are respectively provided with mounting frames. The second-layer hauling cable pulley block (3) is connected to the top of the jacking steel box girder (2). The hoisting cable pulley block (4) is connected to the top of the second-layer hauling cable pulley block (3). The first-layer hauling cable pulley block (5) is connected to the top of the hoisting cable pulley block (4). The load-bearing cable pulley block (6) is connected to the top of the first-layer hauling cable pulley block (5). The swivel saddle module further includes a winch unit and a rear anchor anchoring device, and both the winch unit and the rear anchor anchoring device are installed on the cross beam.

2. The energy-saving hoisting system according to claim 1, characterized in that: The cable module includes a load-bearing cable, a hauling cable and a hoisting cable. The two anchoring modules are respectively arranged on the opposite banks on both sides of the cross beam. The two ends of the load-bearing cable are respectively connected to the two anchoring modules, and the middle section of the load-bearing cable is connected to the top of the load-bearing cable pulley block (6) through a pulley.

3. An energy-saving hoisting system according to claim 2, characterized in that: The hoisting module includes a trolley, a hoisting pulley block and a spreader. The trolley is rollingly installed on the load-bearing cable, and the hoisting pulley block is installed in the trolley.

4. An energy-saving hoisting system according to claim 3, characterized in that: One end of the hauling cable is connected to the rear anchor anchoring device, the other end of the hauling cable is connected to the trolley, and a section of the hauling cable close to the rear anchor anchoring device is wound and connected to the winch unit.

5. An energy-saving hoisting system according to claim 4, characterized in that: The hauling cable runs horizontally in a U shape through the first-layer hauling cable pulley block (5) and the second-layer hauling cable pulley block (3), and the hauling cable is connected to the first-layer hauling cable pulley block (5) and the second-layer hauling cable pulley block (3) through pulleys.

6. The energy-saving hoisting system according to claim 5, wherein: One end of the hoisting cable is connected to the rear anchor anchoring device, the other end of the hoisting cable is connected to the spreader. A section of the hoisting cable close to the rear anchor anchoring device is wound and connected to the winch unit. A section of the hoisting cable close to the spreader is slidably connected to the hoisting pulley block through a pulley, and the spreader is suspended under the trolley through the hoisting cable.

7. An energy-saving hoisting system according to claim 6, characterized in that: The hoisting cable winds horizontally in a U shape on the hoisting cable pulley block (4), and the hoisting cable is slidably connected to the hoisting cable pulley block (4) through a pulley. The hoisting cable on the hoisting cable pulley block (4) is located inside the hauling cables on the first-layer hauling cable pulley block (5) and the second-layer hauling cable pulley block (3).

8. An energy-saving hoisting system according to claim 7, characterized in that: A kinetic energy recovery module and a cleaning module are arranged in the trolley. The kinetic energy recovery module includes a power generation device and an energy storage device. Wheels are arranged at the connection between the trolley and the load-bearing cable. The power generation device is connected to the wheels of the trolley, the energy storage device is electrically connected to the power generation device, and the energy storage device is electrically connected to the power supply system of the winch unit.

9. An energy-saving hoisting system according to claim 8, characterized in that: The cleaning module includes a cleaning device and a de-icing device. The cleaning device is connected to one end of the sports car. The cleaning device is provided with a circular cleaning brush, and the circular cleaning brush contacts the outer wall of the load-bearing cable. The de-icing device includes a temperature sensor, a rain and snow sensor, and a de-icing hammer. The temperature sensor and the rain and snow sensor are both connected to the de-icing hammer, and the de-icing hammer is electrically connected to the energy storage device.

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