Energy-saving system of hydraulic stepping cooling bed

Abstract

The utility model provides an energy-saving system of a hydraulic stepping cooling bed, which relates to the technical field of cooling beds and comprises a stepping cooling bed, a lifting mechanism and an energy-saving mechanism, the stepping cooling bed comprises a fixing frame, the lifting mechanism comprises a lifting hydraulic cylinder and an energy-saving hydraulic cylinder, the lifting hydraulic cylinder and the energy-saving hydraulic cylinder are communicated with a driving oil way, and the energy-saving hydraulic cylinder is communicated with the fixing frame. The lifting hydraulic cylinder and / or the energy-saving hydraulic cylinder are / is used for adjusting the set height of the fixing frame; the energy-saving mechanism comprises an oil way control mechanism arranged on the driving oil way and an energy storage device communicated with the oil way control mechanism, and the oil way control mechanism is controllably communicated with the lifting hydraulic cylinder, the energy-saving hydraulic cylinder and the energy storage device. The hydraulic energy and gravitational potential energy of most hydraulic oil can be absorbed and stored, and the stored hydraulic oil can be released when the fixing frame ascends, so that the hydraulic energy and gravitational potential energy of the hydraulic oil are recycled, and the utilization rate of energy is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling beds, in particular to a hydraulic step-by-step cooling bed energy-saving system. Background Art

[0002] In the production process of hot-rolled thick plates, in order to improve the transportation efficiency of hot-rolled thick plates, thick plate cooling beds are generally used to transport the hot-rolled thick plates. The thick plate cooling bed is a hydraulic walking cooling bed. Among them, the hydraulic walking cooling bed generally controls the height through a lifting device. When the lifting device of the hydraulic walking cooling bed descends, the hydraulic oil in the lifting device is discharged. The hydraulic energy and gravitational potential energy in these hydraulic oils are not effectively utilized, but are converted into heat energy and released. This waste of energy not only affects the efficiency of the system, but may also cause the temperature of the hydraulic oil to rise, thereby affecting the stability and service life of the system. Therefore, how to realize the conversion and utilization of hydraulic energy during the use of the cooling bed has become a technical problem that needs to be solved urgently. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiment of the present utility model is to provide a hydraulic walking cooling bed energy-saving system for realizing the conversion and utilization of hydraulic energy.

[0004] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions. The present invention provides a hydraulic step cooling bed energy-saving system, comprising:

[0005] A walking cooling bed, the walking cooling bed comprising a fixed frame for supporting thick plates, the fixed frame being arranged to be raised and lowered;

[0006] a lifting mechanism, the lifting mechanism comprising a lifting hydraulic cylinder, a first transmission structure connecting the lifting hydraulic cylinder and the fixed frame, an energy-saving hydraulic cylinder, and a second transmission structure connecting the energy-saving hydraulic cylinder and the fixed frame, the lifting hydraulic cylinder and the energy-saving hydraulic cylinder being connected to a drive oil circuit, the lifting hydraulic cylinder and / or the energy-saving hydraulic cylinder being used to adjust the setting height of the fixed frame;

[0007] An energy-saving mechanism includes an oil circuit control mechanism arranged on the driving oil circuit, and an energy storage device connected to the oil circuit control mechanism, and the oil circuit control mechanism can controllably connect the lifting hydraulic cylinder, the energy-saving hydraulic cylinder and the energy storage device.

[0008] In a preferred embodiment of the present invention, there are multiple lifting hydraulic cylinders, which are arranged in parallel, and there are multiple energy-saving hydraulic cylinders, which are arranged in parallel. The oil circuit control mechanism can controllably connect each lifting hydraulic cylinder, each energy-saving hydraulic cylinder and the energy storage device.

[0009] In a preferred embodiment of the present invention, the hydraulic step cooling bed energy-saving system also includes a cooling bed hydraulic station, the cooling bed hydraulic station is connected to the driving oil circuit, and the oil circuit control mechanism is controllably connected to the lifting hydraulic cylinder, the energy-saving hydraulic cylinder, the energy storage device and the cooling bed hydraulic station.

[0010] In a preferred embodiment of the present invention, the hydraulic step cooling bed energy-saving system also includes a pressure sensor, which is used to detect the pressure of the energy storage device. The pressure sensor is electrically connected to the oil circuit control mechanism, and the oil circuit control mechanism can control the connection status between the energy storage device and the cooling bed hydraulic station based on the signal of the pressure sensor.

[0011] In a preferred embodiment of the present invention, the oil circuit control mechanism includes a first control valve group and a second control valve group arranged on the drive oil circuit, the first control valve group is controllably connected to the energy-saving hydraulic cylinder, the energy storage device and the cooling bed hydraulic station, and the second control valve group is controllably connected to the lifting hydraulic cylinder, the cooling bed hydraulic station and the first control valve group.

[0012] In a preferred embodiment of the present invention, a position sensor is provided on the lifting hydraulic cylinder and / or the energy-saving hydraulic cylinder.

[0013] In a preferred embodiment of the present invention, the hydraulic walking cooling bed energy-saving system further includes a laser rangefinder, which is used to obtain the position of the lifting hydraulic cylinder and / or the energy-saving hydraulic cylinder.

[0014] In a preferred embodiment of the present invention, a flow meter is provided on the driving oil circuit.

[0015] In a preferred embodiment of the present invention, the first transmission structure includes a first transmission crank arranged between the lifting hydraulic cylinder and the fixing frame.

[0016] In a preferred embodiment of the present invention, the second transmission structure includes a second transmission crank arranged between the energy-saving hydraulic cylinder and the fixed frame.

[0017] In a preferred embodiment of the present invention, the walking cooling beds are provided in multiple groups, and the walking cooling beds are arranged side by side along the thick plate conveying path.

[0018] In a preferred embodiment of the present invention, the walking cooling bed also includes a movable frame for conveying thick plates, and the hydraulic walking cooling bed energy-saving system also includes a transverse movement mechanism, the transverse movement mechanism includes a transverse movement hydraulic cylinder, and a third transmission structure connecting the transverse movement hydraulic cylinder and the movable frame, the transverse movement hydraulic cylinder is connected to the drive oil circuit, and the transverse movement hydraulic cylinder is used to drive the movable frame to move back and forth.

[0019] In a preferred embodiment of the present invention, the third transmission structure includes a transmission connecting rod arranged between the transverse hydraulic cylinder and the movable frame.

[0020] The technical solution of the utility model has the following significant beneficial effects:

[0021] When the hydraulic cooling bed energy-saving system of the utility model is used, the walking cooling bed can support the hot-rolled thick plate through the fixed frame, and by connecting the lifting mechanism to the fixed frame, the setting height of the fixed frame can be adjusted by using the lifting mechanism, which is convenient for subsequent use with the movable frame to transport the hot-rolled thick plate, thereby achieving a better transportation effect.

[0022] When the height of the fixed frame is lowered, the hydraulic oil in the lifting hydraulic cylinder and the energy-saving hydraulic cylinder flows out. At this time, the lifting hydraulic cylinder, the energy-saving hydraulic cylinder and the energy storage device are connected through the oil circuit control mechanism, so that the hydraulic oil in the hydraulic cylinder flows into the energy storage device, thereby recovering the hydraulic energy and gravitational potential energy in the hydraulic oil;

[0023] When the fixed frame is raised, the oil circuit control mechanism can first connect the energy-saving hydraulic cylinder and the energy storage device, allowing the hydraulic oil in the energy storage device to flow into the energy-saving hydraulic cylinder to provide lifting power. At this time, the fixed frame is not in contact with the thick plate. When the fixed frame contacts the thick plate, the load increases, and the lifting hydraulic cylinder is activated to assist the energy-saving hydraulic cylinder in the lifting operation, allowing the fixed frame to rise to the target position. In addition, when the lifting hydraulic cylinder is in use, it can also be connected to the energy storage device through the oil circuit control mechanism, using the hydraulic oil in the energy storage device to provide power for the lifting hydraulic cylinder.

[0024] Furthermore, the energy storage device is connected to the drive oil circuit through the oil circuit control mechanism, and then the energy storage device can be connected to the cooling bed hydraulic station through the drive oil circuit. The cooling bed hydraulic station is used to replenish the energy storage device with oil, so that the hydraulic oil in the energy storage device is maintained within a preset pressure range, thereby ensuring that the energy storage device can provide stable hydraulic power.

[0025] The utility model can absorb and store most of the hydraulic energy and gravitational potential energy of the hydraulic oil during the descending process of the fixed frame of the walking cooling bed. The stored hydraulic oil energy can also be released when the fixed frame rises, thereby realizing the recycling of the hydraulic energy and gravitational potential energy of the hydraulic oil, improving the utilization rate of energy, and helping to reduce energy consumption and operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportional dimensions of the components in the drawings are for illustrative purposes only and are intended to facilitate understanding of the present invention. They are not intended to limit the shapes and proportional dimensions of the components of the present invention. Those skilled in the art, guided by the present invention, may select various possible shapes and proportional dimensions to implement the present invention, depending on the specific circumstances.

[0028] Figure 1 This is a structural schematic diagram of an embodiment of the hydraulic walking cooling bed energy-saving system of the present utility model.

[0029] Reference numerals in the above drawings:

[0030] 100. Walking cooling bed; 110. Fixed frame;

[0031] 200, lifting mechanism;

[0032] 210. Lifting hydraulic cylinder; 211. First transmission structure;

[0033] 220. Energy-saving hydraulic cylinder; 221. Second transmission structure;

[0034] 300. Energy conservation organizations;

[0035] 310, drive oil circuit;

[0036] 320, oil circuit control mechanism; 321, first control valve group; 322, second control valve group;

[0037] 330. Energy storage device;

[0038] 400, cooling bed hydraulic station;

[0039] 500, pressure sensor;

[0040] 600. Position sensor. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Please refer to Figure 1 As shown, in an embodiment of the present invention, a hydraulic walking cooling bed energy-saving system is provided, which includes a walking cooling bed 100, a lifting mechanism 200 and an energy-saving mechanism 300. The walking cooling bed 100 includes a fixed frame 110 for supporting a thick plate, and the fixed frame 110 is arranged to be lifted; the lifting mechanism 200 includes a lifting hydraulic cylinder 210, a first transmission structure 211 connecting the lifting hydraulic cylinder 210 and the fixed frame 110, an energy-saving hydraulic cylinder 220, and a first transmission structure 212 connecting the energy-saving hydraulic cylinder 220 and the fixed frame 110. The second transmission structure 221 of the fixed frame 110, the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 are connected to the drive oil circuit 310, and the lifting hydraulic cylinder 210 and / or the energy-saving hydraulic cylinder 220 are used to adjust the setting height of the fixed frame 110; the energy-saving mechanism 300 includes an oil circuit control mechanism 320 arranged on the drive oil circuit 310, and an energy storage device 330 connected to the oil circuit control mechanism 320, and the oil circuit control mechanism 320 is controllably connected to the lifting hydraulic cylinder 210, the energy-saving hydraulic cylinder 220 and the energy storage device 330.

[0043] On the whole, when the hydraulic cooling bed energy-saving system is in use, the walking cooling bed 100 can support the hot-rolled thick plate through the fixed frame 110, and by connecting the lifting mechanism 200 to the fixed frame 110, the setting height of the fixed frame 110 can be adjusted by using the lifting mechanism 200, which facilitates the subsequent use with the movable frame to transport the hot-rolled thick plate, thereby achieving a better transportation effect.

[0044] When the height of the fixing frame 110 is lowered, the hydraulic oil in the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 flows out. At this time, the lifting hydraulic cylinder 210, the energy-saving hydraulic cylinder 220 and the energy storage device 330 are connected through the oil circuit control mechanism 320, so that the hydraulic oil in the hydraulic cylinder flows into the energy storage device 330, thereby recovering the hydraulic energy and gravitational potential energy in the hydraulic oil.

[0045] When the height of the fixing frame 110 is raised, the oil circuit control mechanism 320 can be used to connect the energy-saving hydraulic cylinder 220 and the energy storage device 330, so that the hydraulic oil in the energy storage device 330 flows into the energy-saving hydraulic cylinder 220 to provide lifting power. At this time, the fixing frame 110 does not contact the thick plate; when the fixing frame 110 contacts the thick plate, due to the increase in load, the lifting hydraulic cylinder 210 is started to assist the energy-saving hydraulic cylinder 220 in the lifting operation, so that the fixing frame 110 rises to the target position.

[0046] Furthermore, when the lifting hydraulic cylinder 210 is in use, it can also be connected to the energy storage device 330 through the oil circuit control mechanism 320 , and the hydraulic oil in the energy storage device 330 can be used to provide power for the lifting hydraulic cylinder 210 .

[0047] Furthermore, the energy storage device 330 is connected to the drive oil circuit 310 through the oil circuit control mechanism 320, and then the energy storage device 330 can be connected to the cooling bed hydraulic station 400 through the drive oil circuit 310, and the cooling bed hydraulic station 400 is used to replenish the energy storage device 330 so that the hydraulic oil in the energy storage device 330 is maintained within a preset pressure range, thereby ensuring that the energy storage device 330 can provide stable hydraulic power.

[0048] During the descending process of the fixed frame 110 of the walking cooling bed 100, the utility model can absorb and store most of the hydraulic energy and gravitational potential energy of the hydraulic oil. The stored hydraulic oil energy can also be released when the fixed frame 110 rises, thereby realizing the recycling of the hydraulic energy and gravitational potential energy of the hydraulic oil, improving the utilization rate of energy, and helping to reduce energy consumption and operating costs.

[0049] In the embodiment of the present invention, the designer can adjust the specific structure of the fixing frame 110 according to the use requirements, and no specific limitation is imposed here. Among them, the energy-saving hydraulic cylinder 220 and the lifting hydraulic cylinder 210 can both be connected to the movable beam of the fixing frame 110, thereby pushing the fixing frame 110 to be raised and lowered.

[0050] In an embodiment of the present utility model, a plurality of lifting hydraulic cylinders 210 are provided, and the plurality of lifting hydraulic cylinders 210 are arranged in parallel; a plurality of energy-saving hydraulic cylinders 220 are provided, and the plurality of energy-saving hydraulic cylinders 220 are arranged in parallel; and the oil circuit control mechanism 320 controllably connects each lifting hydraulic cylinder 210, each energy-saving hydraulic cylinder 220 and the energy storage device 330.

[0051] By setting up multiple lifting hydraulic cylinders 210 and multiple energy-saving hydraulic cylinders 220, each lifting hydraulic cylinder 210 and each energy-saving hydraulic cylinder 220 can collaboratively lift the fixed frame 110 of the walking cooling bed 100, and can lift heavy hot-rolled thick plates with better lifting stability.

[0052] Designers can adjust the number and arrangement of the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 according to usage needs, and no specific restrictions are imposed here.

[0053] In an embodiment of the present invention, the hydraulic step cooling bed energy-saving system also includes a cooling bed hydraulic station 400, which is connected to the drive oil circuit 310, and the oil circuit control mechanism 320 controllably connects the lifting hydraulic cylinder 210, the energy-saving hydraulic cylinder 220, the energy storage device 330 and the cooling bed hydraulic station 400.

[0054] By utilizing the oil circuit control mechanism 320 to controllably connect the lifting hydraulic cylinder 210, the energy-saving hydraulic cylinder 220, the energy storage device 330 and the cooling bed hydraulic station 400, the cooling bed hydraulic station 400 performs an oil replenishing operation on the energy storage device 330 to maintain the hydraulic oil in the energy storage device 330 within a preset pressure range, and the energy storage device 330 can provide stable hydraulic power for the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220.

[0055] Moreover, when the fixed frame 110 descends, the hydraulic oil in the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 can flow into the energy storage device 330 for recovery. When the pressure in the energy storage device 330 exceeds a preset value, the oil circuit control mechanism 320 controllably connects the lifting hydraulic cylinder 210, the energy-saving hydraulic cylinder 220 and the cooling bed hydraulic station 400, so that the hydraulic oil in the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 flows into the cooling bed hydraulic station 400, thereby ensuring the safe operation of the energy storage device 330.

[0056] In an embodiment of the present utility model, the oil circuit control mechanism 320 includes a first control valve group 321 and a second control valve group 322 arranged on the driving oil circuit 310. The first control valve group 321 is controllably connected to the energy-saving hydraulic cylinder 220, the energy storage device 330 and the cooling bed hydraulic station 400, and the second control valve group 322 is controllably connected to the lifting hydraulic cylinder 210, the cooling bed hydraulic station 400 and the first control valve group 321.

[0057] The first control valve group 321 can switch the communication state between the energy-saving hydraulic cylinder 220, the energy storage device 330 and the cooling bed hydraulic station 400, and the second control valve group 322 can switch the communication state between the lifting hydraulic cylinder 210, the cooling bed hydraulic station 400 and the first control valve group 321. Then, the first control valve group 321 and the second control valve group 322 can cooperate to realize the recovery and reuse of the hydraulic energy and gravitational potential energy of the hydraulic oil.

[0058] Designers can adjust the specific structures of the first control valve group 321 and the second control valve group 322 according to usage requirements. For example, the first control valve group 321 and the second control valve group 322 can both include servo control valves, which is not specifically limited here.

[0059] Furthermore, the first control valve group 321 and the second control valve group 322 can be controlled by a PLC controller. Of course, designers can also use other methods to control the first control valve group 321 and the second control valve group 322, which are not specifically limited here.

[0060] In an embodiment of the present utility model, the hydraulic step cooling bed energy-saving system also includes a pressure sensor 500, which is used to detect the pressure of the energy storage device 330. The pressure sensor 500 is electrically connected to the oil circuit control mechanism 320. The oil circuit control mechanism 320 can control the connectivity between the energy storage device 330 and the cooling bed hydraulic station 400 based on the signal of the pressure sensor 500.

[0061] The pressure sensor 500 can detect the pressure of the hydraulic oil in the energy storage device 330, and by electrically connecting the pressure sensor 500 to the oil circuit control mechanism 320, the oil circuit control mechanism 320 can control the connection status of the energy storage device 330 and the cooling bed hydraulic station 400 based on the signal from the pressure sensor 500.

[0062] When the pressure sensor 500 detects that the internal pressure of the energy storage device 330 is insufficient, the oil circuit control mechanism 320 connects the energy storage device 330 and the cooling bed hydraulic station 400, and uses the cooling bed hydraulic station 400 to replenish hydraulic oil to the energy storage device 330 to increase the internal pressure of the hydraulic oil in the energy storage device 330.

[0063] When the pressure sensor 500 detects that the internal pressure of the energy storage device 330 is too high, in order to avoid obstruction of the downward movement of the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220, the oil circuit control mechanism 320 disconnects the energy storage device 330, so that the hydraulic oil in the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 can flow into the cooling bed hydraulic station 400, thereby improving the operating safety of the energy storage device 330.

[0064] Designers can adjust the specific location of the pressure sensor 500 according to usage requirements. For example, the pressure sensor 500 can be set on the drive oil circuit 310 between the energy storage device 330 and the first control valve group 321 to detect the pressure of the hydraulic oil in the energy storage device 330.

[0065] As the walking cooling bed 100 descends, most of the gravity potential energy in the hydraulic oil is absorbed and stored by the energy storage device 330. The energy stored in the energy storage device 330 can be released and recycled when the walking cooling bed 100 ascends, thereby recovering the gravity potential energy. This recycling method not only improves energy utilization, but also helps reduce energy consumption and operating costs.

[0066] In a feasible embodiment of the present invention, a position sensor 600 is provided on the lifting hydraulic cylinder 210 and / or the energy-saving hydraulic cylinder 220. Preferably, a position sensor 600 is provided on both the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220.

[0067] The positions of the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 can be obtained through the position sensor 600, which helps to accurately control the movement stroke of the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220, thereby achieving better control effects.

[0068] In another feasible embodiment of the present invention, the hydraulic walking cooling bed energy-saving system further includes a laser rangefinder, which is used to obtain the position of the lifting hydraulic cylinder 210 and / or the energy-saving hydraulic cylinder 220. Preferably, the laser rangefinder is used to obtain the position of the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220.

[0069] The positions of the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 can be accurately obtained by the laser rangefinder, thereby facilitating accurate control of the movement strokes of the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 .

[0070] Furthermore, a flow meter is provided on the drive oil circuit 310. This flow meter can detect the flow rate of the hydraulic oil, and thus, in conjunction with the position sensor 600 or the laser rangefinder, can better control the movement strokes of the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220, allowing the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 to be adjusted according to preset targets, thereby improving the adjustment accuracy of the fixing frame 110.

[0071] Specifically, flow meters may be provided at the hydraulic oil inlets and outlets of the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 , so as to better obtain the input and output amounts of the hydraulic oil.

[0072] Of course, designers can also adjust the specific number and location of the flow meters according to usage needs, and no specific restrictions are imposed here.

[0073] In an embodiment of the present invention, the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 may be disposed on a ground foundation, thereby being able to more stably support the fixing frame 110 .

[0074] In this embodiment of the present invention, the first transmission structure 211 includes a first transmission crank disposed between the lifting hydraulic cylinder 210 and the fixed frame 110. The lifting hydraulic cylinder 210, fixed to the ground, drives the first transmission crank, which in turn propels the fixed frame 110 upward or downward. Designers can adjust the specific shape and structure of the first transmission crank according to their specific needs and are not specifically limited here.

[0075] In this embodiment of the present invention, the second transmission structure 221 includes a second transmission crank disposed between the energy-saving hydraulic cylinder 220 and the fixed frame 110. The energy-saving hydraulic cylinder 220, fixed to the ground, drives the second transmission crank, which in turn propels the fixed frame 110 upward or downward. Designers can adjust the specific shape and structure of the second transmission crank according to their needs and are not specifically limited here.

[0076] In an embodiment of the present invention, multiple groups of walking cooling beds 100 are provided, and the walking cooling beds 100 are arranged side by side along the thick plate conveying path. By providing multiple groups of walking cooling beds 100 and arranging the multiple groups of walking cooling beds 100 side by side, the multiple groups of walking cooling beds 100 can be used to coordinately transport the hot-rolled thick plates.

[0077] Each group of walking cooling beds 100 can be raised independently, so that each walking cooling bed 100 can be flexibly adjusted according to different production requirements. For example, when cleaning or maintenance is required, a certain group of walking cooling beds 100 can be raised independently without affecting the normal operation of other groups of walking cooling beds 100.

[0078] Among them, each walking cooling bed 100 is provided with a lifting mechanism 200, and the oil circuit control mechanism 320 is respectively connected to the lifting hydraulic cylinder 210 and the energy-saving hydraulic cylinder 220 in each lifting mechanism 200, so that the oil circuit control mechanism 320, each lifting hydraulic cylinder 210, each energy-saving hydraulic cylinder 220 and the energy storage device 330 are networked and used together.

[0079] When part of the walking cooling bed 100 is in the process of descending, the energy storage device 330 can be used to recover the hydraulic energy and gravitational potential energy of the hydraulic oil in each lifting hydraulic cylinder 210 and each energy-saving hydraulic cylinder 220 in the process of descending.

[0080] When part of the walking cooling bed 100 is in the lifting process, the energy storage device 330 can be used to supply the recovered hydraulic oil to the lifting hydraulic cylinders 210 and the energy-saving hydraulic cylinders 220 in the lifting process, thereby reducing the energy consumption of the lifting hydraulic cylinders 210 and the energy-saving hydraulic cylinders 220 in the lifting process and saving energy.

[0081] Furthermore, by networking the lifting hydraulic cylinders 210 and the energy-saving hydraulic cylinders 220, a better potential energy recovery effect is achieved. Simultaneously, through electrical synchronization control, each group of step-type cooling beds 100 can also be lifted synchronously, ensuring the stability and balance of the entire cooling bed system during the lifting process.

[0082] In an embodiment of the present invention, the walking cooling bed 100 also includes a movable frame (not shown) for conveying thick plates, and the hydraulic walking cooling bed energy-saving system also includes a transverse movement mechanism (not shown). The transverse movement mechanism includes a transverse hydraulic cylinder and a third transmission structure connecting the transverse hydraulic cylinder and the movable frame. The transverse hydraulic cylinder is connected to the drive oil circuit 310, and the transverse hydraulic cylinder is used to drive the movable frame to move back and forth.

[0083] By providing a movable frame, the movable frame can reciprocate, and the movable frame and the fixed frame 110 cooperate to transport hot-rolled thick plates, achieving better transportation efficiency. Designers can adjust the specific structure of the movable frame according to usage needs. For example, the movable frame can be formed by movable beams, and no specific limitation is given here.

[0084] Specifically, the third transmission structure includes a transmission link disposed between the traverse hydraulic cylinder and the movable frame. During operation, the traverse hydraulic cylinder drives the transmission link, which in turn propels the movable frame back and forth, thereby achieving traverse motion. Designers can adjust the specific structure of the transmission link based on specific needs and are not specifically limited here. The traverse mechanism can operate independently or through electrical synchronization.

[0085] Among them, multiple transverse hydraulic cylinders can be provided, and multiple transverse hydraulic cylinders cooperate to push the movable frame to reciprocate. Designers can adjust the number and position of the transverse hydraulic cylinders according to usage needs, and no specific restrictions are imposed here.

[0086] Furthermore, the traverse hydraulic cylinder is connected to the drive oil circuit 310, allowing the oil circuit control mechanism 320 to controllably connect the traverse hydraulic cylinder and the energy storage device 330. This allows hydraulic oil recovered from the energy storage device 330 to flow into the traverse hydraulic cylinder to provide power for reciprocating motion, thereby saving energy. In one feasible embodiment, the first control valve group is connected to the traverse hydraulic cylinder via a branch drive oil line.

[0087] During the first operation, hydraulic oil is injected into the driving oil circuit 310 through the cooling bed hydraulic station 400. Then, the hydraulic oil passes through the first control valve group 321 and flows into the energy storage device 330. The energy storage device 330 is an energy storage device for storing hydraulic energy.

[0088] The pressure sensor 500 monitors the pressure of the hydraulic oil in the energy storage device 330 in real time. When the pressure is lower than the set minimum value, the cooling bed hydraulic station 400 will automatically start to replenish the oil for the energy storage device 330 to ensure that its pressure is always maintained within the set range.

[0089] When the walking cooling bed 100 needs to be raised, the energy storage device 330 begins to release the stored hydraulic oil. This hydraulic oil is supplied to the energy-saving hydraulic cylinder 220 through the first control valve group 321. The opening of the first control valve group 321 can be precisely controlled by the control system to adjust the flow of hydraulic oil. The hydraulic oil enters the energy-saving hydraulic cylinder 220, pushing the cylinder upward.

[0090] When contact is made with the steel plate, the increased load causes the lifting hydraulic cylinder 210 to assist in lifting, raising the fixed frame 110 to its highest position. Position sensors 600 monitor the positions of the energy-saving hydraulic cylinder 220 and the lifting hydraulic cylinder 210 in real time, converting these position signals into electrical signals and transmitting them to the first control valve group 321. Through the PLC system, these detection signals can be used to adjust the opening of the first control valve group 321 in real time, achieving precise control of the cylinder speed and position.

[0091] When the walking cooling bed 100 descends, the control system sends a reverse signal to the first and second control valve groups 321 and 322. This causes the proportional servo valves to open, and the energy-saving hydraulic cylinders 220 and lift hydraulic cylinders 210 begin to retract due to their own gravitational potential energy. The hydraulic oil in the energy-saving hydraulic cylinders 220 and lift hydraulic cylinders 210 flows back to the energy storage device 330 through the first control valve group 321. When the pressure in the energy storage device 330 reaches the upper pressure limit set by the pressure sensor 500, to prevent the hydraulic cylinders from being blocked from descending, the hydraulic oil no longer enters the energy storage device 330 and instead returns directly to the cooling bed hydraulic station 400.

[0092] As the walking cooling bed 100 descends, most of the weight potential energy is absorbed and stored by the energy storage device 330. This stored energy can be released and recycled when the walking cooling bed 100 ascends, thereby recovering the gravitational potential energy. This recycling method not only improves energy utilization, but also helps reduce energy consumption and operating costs.

[0093] The accumulator 330 absorbs a certain amount of energy during the hydraulic cylinder's downward movement. However, to ensure sufficient power for the hydraulic cylinder's upward movement, a certain amount of pressure must be added to the accumulator 330. When the pressure in the accumulator 330 reaches its upper limit, the cooling bed hydraulic station 400 stops supplying oil. In other words, the power required for the hydraulic cylinder's upward movement comes from the hydraulic energy and gravitational potential energy recovered by the accumulator, as well as the kinetic energy of the oil replenishment from the cooling bed hydraulic station 400.

[0094] This utility model significantly reduces the load on the hydraulic cylinder by recycling gravitational potential energy. During the lifting of the movable beam of the thick plate cooling bed, the energy storage device 330 cooperates with it to complete the lifting action. This not only enhances the stability of the lifting process but also significantly absorbs the impact caused by load fluctuations during the movable beam's movement, thereby improving its stress state. This design not only improves the stability of the movable beam's operation but also helps extend its service life.

[0095] Because the energy-saving hydraulic cylinder 220 bears a portion of the load, the number of main pumps can be reduced, thereby saving initial investment costs. Furthermore, since the total power of the main pump motors is reduced, the total energy consumption of the entire system is also reduced, achieving energy conservation. This saves operating costs for the company and helps reduce energy consumption and environmental pollution.

[0096] Furthermore, potential energy that would otherwise be lost as heat is effectively recovered and reused. Consequently, the system's cooling water requirements are significantly reduced. This not only reduces cooling water consumption but also helps lower cooling system maintenance costs.

[0097] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "essentially consisting of..." describing a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps herein also contemplates an embodiment that is essentially composed of these elements, ingredients, parts or steps. By using the term "may", it is intended to illustrate that any attribute described that "may" include is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0098] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to in detail. The above embodiments are only for illustrating the technical concept and features of the utility model. Their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They are not intended to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A hydraulic walking cooling bed energy-saving system, characterized in that: include: A walking cooling bed, the walking cooling bed comprising a fixed frame for supporting thick plates, the fixed frame being arranged to be raised and lowered; a lifting mechanism, the lifting mechanism comprising a lifting hydraulic cylinder, a first transmission structure connecting the lifting hydraulic cylinder and the fixed frame, an energy-saving hydraulic cylinder, and a second transmission structure connecting the energy-saving hydraulic cylinder and the fixed frame, the lifting hydraulic cylinder and the energy-saving hydraulic cylinder being connected to a drive oil circuit, the lifting hydraulic cylinder and / or the energy-saving hydraulic cylinder being used to adjust the setting height of the fixed frame; An energy-saving mechanism includes an oil circuit control mechanism arranged on the driving oil circuit, and an energy storage device connected to the oil circuit control mechanism, and the oil circuit control mechanism can controllably connect the lifting hydraulic cylinder, the energy-saving hydraulic cylinder and the energy storage device.

2. The hydraulic walking cooling bed energy-saving system according to claim 1, characterized in that: There are multiple lifting hydraulic cylinders, which are arranged in parallel. There are multiple energy-saving hydraulic cylinders, which are arranged in parallel. The oil circuit control mechanism can controllably connect the lifting hydraulic cylinders, the energy-saving hydraulic cylinders and the energy storage device.

3. The hydraulic walking cooling bed energy-saving system according to claim 1 or 2, characterized in that: The hydraulic step cooling bed energy-saving system further includes a cooling bed hydraulic station, which is connected to the driving oil circuit, and the oil circuit control mechanism controllably connects the lifting hydraulic cylinder, the energy-saving hydraulic cylinder, the energy storage device and the cooling bed hydraulic station.

4. The hydraulic walking cooling bed energy-saving system according to claim 3, characterized in that: The hydraulic walking cooling bed energy-saving system also includes a pressure sensor, which is used to detect the pressure of the energy storage device. The pressure sensor is electrically connected to the oil circuit control mechanism, and the oil circuit control mechanism can control the connection state between the energy storage device and the cooling bed hydraulic station based on the signal of the pressure sensor.

5. The hydraulic walking cooling bed energy-saving system according to claim 3, characterized in that: The oil circuit control mechanism includes a first control valve group and a second control valve group arranged on the drive oil circuit. The first control valve group is controllably connected to the energy-saving hydraulic cylinder, the energy storage device and the cooling bed hydraulic station. The second control valve group is controllably connected to the lifting hydraulic cylinder, the cooling bed hydraulic station and the first control valve group.

6. The hydraulic walking cooling bed energy-saving system according to claim 1, characterized in that: The lifting hydraulic cylinder and / or the energy-saving hydraulic cylinder are provided with a position sensor.

7. The hydraulic walking cooling bed energy-saving system according to claim 1, characterized in that: The hydraulic walking cooling bed energy-saving system further includes a laser rangefinder, which is used to obtain the position of the lifting hydraulic cylinder and / or the energy-saving hydraulic cylinder.

8. The hydraulic walking cooling bed energy-saving system according to claim 6 or 7, characterized in that: A flow meter is provided on the driving oil circuit.

9. The hydraulic walking cooling bed energy-saving system according to claim 1, characterized in that: The first transmission structure includes a first transmission crank arranged between the lifting hydraulic cylinder and the fixing frame.

10. The hydraulic walking cooling bed energy-saving system according to claim 1, characterized in that: The second transmission structure includes a second transmission crank arranged between the energy-saving hydraulic cylinder and the fixed frame.

11. The hydraulic walking cooling bed energy-saving system according to claim 1, characterized in that: There are multiple groups of walking cooling beds, and the walking cooling beds are arranged side by side along the thick plate conveying path.

12. The hydraulic walking cooling bed energy-saving system according to claim 1 or 11, characterized in that: The walking cooling bed also includes a movable frame for conveying thick plates. The hydraulic walking cooling bed energy-saving system also includes a transverse movement mechanism. The transverse movement mechanism includes a transverse movement hydraulic cylinder and a third transmission structure connecting the transverse movement hydraulic cylinder and the movable frame. The transverse movement hydraulic cylinder is connected to a drive oil circuit, and the transverse movement hydraulic cylinder is used to drive the movable frame to reciprocate.

13. The hydraulic walking cooling bed energy-saving system according to claim 12, characterized in that: The third transmission structure includes a transmission connecting rod arranged between the transverse hydraulic cylinder and the movable frame.

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