Hydraulic lifting system and method of lifting thereof

Abstract

The present application relates to the field of lifting technology, and discloses a hydraulic lifting system, which comprises a hydraulic lifting device and a buffer device. The driving of a pulling motor in the pulling device makes the pulling end close to the shell of the pulling device, and then the structure to be lifted connected with the pulling end is subjected to the pulling force directed to the shell of the pulling device. Then, the total pulling force applied by the pulling devices in the at least two groups of buffer assemblies counteracts the horizontal impact force generated by the structure to be lifted due to horizontal deviation, so as to avoid damage to the hydraulic lifting device and the structure to be lifted itself caused by the horizontal impact during lifting. The present application also discloses a lifting method for the above hydraulic lifting system. By setting the lifting point and the buffer assemblies on different sides of the structure to be lifted, the horizontal impact generated towards the side of the lifting point during non-in-situ lifting of the structure to be lifted can be counteracted by the total pulling force applied by the pulling devices in the at least two groups of buffer assemblies, so as to realize non-in-situ lifting.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lifting technology, and in particular to a hydraulic lifting system and a lifting method thereof. BACKGROUND

[0002] Hydraulic overall lifting is a construction technology, which first assembles a structure to be lifted on the ground or a platform at a certain elevation, and then lifts the structure to be lifted in situ by hydraulic lifting facilities and equipment installed on the top of a completed concrete frame or a special lifting frame (which is usually located 1-2 meters above the installation elevation of the structure to be lifted), thereby reducing the impact on civil construction, and using computer control during lifting to achieve fine control of the lifting process and enhance the reliability of the lifting facilities.

[0003] This technology requires that the structure to be lifted be assembled in situ below the orthographic projection of the installation position, and then be lifted in situ after assembly. Due to differences between building structures at different levels and different construction conditions on site, the structure to be lifted often cannot be assembled in situ. When the in-situ lifting condition is not met, a support cradle is usually used in combination with high-altitude assembly. This installation method requires the use of a support cradle, which needs to be installed additionally, resulting in low overall installation efficiency and high risk due to high-altitude assembly. If the structure to be lifted is assembled non-in-situ, the hydraulic lifting facilities and equipment cannot lift the structure vertically, and the distance between the hydraulic lifting facilities and equipment and the structure to be lifted will cause the structure to be lifted to deviate horizontally towards the hydraulic lifting facilities and equipment at the moment of starting the hydraulic lifting facilities and equipment, which will cause horizontal tension on the hydraulic lifting facilities and equipment, easily causing damage to the hydraulic lifting facilities and equipment and failure of the connection between the hydraulic lifting facilities and equipment and the structure to be lifted, and further causing the structure to be lifted to fall and other serious consequences. SUMMARY

[0004] The present application aims to provide a hydraulic lifting system and a lifting method thereof to solve the problem of horizontal deviation and horizontal impact during lifting due to the horizontal distance between the structure to be lifted and the installation position when the structure to be lifted is assembled non-in-situ.

[0005] To achieve the above-mentioned purpose, the present application provides a hydraulic lifting system, which comprises a hydraulic lifting device and a buffer device.

[0006] The hydraulic lifting device comprises two groups of lifting assemblies arranged at intervals, each lifting assembly comprising a lifting motor, a lifting rope and a lifting point; two lifting points are arranged at the same vertical height, the lifting rope is arranged to slide through the lifting points, the top end of the lifting rope is connected to the power output end of the lifting motor, and the bottom end of the lifting rope is used to be connected to a structure to be lifted; the lifting motor can drive the bottom end of the lifting rope to move towards the lifting point.

[0007] The buffer device comprises at least two groups of buffer assemblies, each group of buffer assemblies is arranged on the same side below the lifting point, the buffer device comprises a fixing member and

[0008] a pulling structure; the pulling structure comprises a puller, the puller comprises a housing, a pulling motor and a pulling part, the pulling motor is arranged in the housing, one end of the pulling part is connected to the power output end of the pulling motor, the other end of the pulling part is a pulling end, and the pulling end is used to be connected to a structure to be lifted; the pulling motor can drive the pulling end to move towards or away from the housing.

[0009] Further, the buffer device comprises two groups of buffer assemblies, and the two groups of buffer assemblies are connected to the two ends of the structure to be lifted respectively.

[0010] Further, the buffer device further comprises a switch controller, the switch controller is electrically connected with each pulling motor, and the switch controller is used to simultaneously control each pulling motor to rotate forward or reverse.

[0011] Further, the pulling structure further comprises a first connecting assembly, the first connecting assembly comprises a first connecting piece and a first hanging ring which are detachably connected;

[0012] the housing is connected to the first connecting piece, and the first hanging ring is connected to the fixing member.

[0013] Further, the pulling structure further comprises a second connecting assembly, the second connecting assembly comprises a second connecting piece and a second hanging ring which are detachably connected;

[0014] the pulling end is connected to the second connecting piece, and the second hanging ring is used to connect the second connecting piece to the structure to be lifted.

[0015] Further, the first connecting piece comprises a first connecting buckle and a first connecting pin;

[0016] the first connecting buckle is in a U shape, first connecting holes penetrating through the two side surfaces are formed at both ends of the first connecting buckle, and the two first connecting holes are coaxially arranged, and the first connecting pin passes through the first connecting hole at one end, the first hanging ring and the first connecting hole at the other end in sequence, and locks and fixes the first hanging ring and the first connecting buckle.

[0017] The second connecting piece comprises a second connecting buckle and a second connecting pin;

[0018] The second connecting buckle is in a U shape, both ends of which are provided with second connecting holes penetrating through the two side surfaces, and the two second connecting holes are coaxially arranged, the second connecting pin sequentially penetrates through the second connecting hole at one end, the second hanging ring and the second connecting hole at the other end, and locks and fixes the second hanging ring and the second connecting buckle.

[0019] The application further provides a lifting method for the hydraulic lifting system.

[0020] S1, the lifting points are arranged above the installation position of the structure to be lifted, and the center of the installation position falls on the line connecting the two lifting points in the vertical projection;

[0021] S2, the fixing pieces are arranged so that the line connecting the two lifting points is located on different sides of the center of the structure to be lifted in the vertical projection;

[0022] S3, the horizontal impact force generated by the structure to be lifted during lifting is calculated, and the pulling force exerted by the pullers on the connecting ropes is set so that the total pulling force generated by the pullers in the horizontal direction is equal in size and opposite in direction to the impact force of the structure to be lifted;

[0023] S4, the lifting motor and the pulling motor are started at the same time, and the lifting motor and the pulling motor are controlled to rotate forward;

[0024] S5, after the structure to be lifted is lifted to a predetermined height, the pulling motor is controlled to rotate reversely so that the pulling end is away from the shell;

[0025] S6, when the structure to be lifted is returned to the installation position below the vertical projection, the pullers are turned off;

[0026] S7, the structure to be lifted is lifted to the installation position, and the lifting motor is turned off.

[0027] Further, in step S2, the horizontal distance between each fixing piece and the structure to be lifted is defined as a first distance, and the horizontal distance between each lifting point and the structure to be lifted is defined as a second distance in the vertical projection, and the first distance is greater than the second distance.

[0028] The hydraulic lifting system and the lifting method thereof provided by the application have the following beneficial effects compared with the prior art:

[0029] The hydraulic lifting system provided by the application comprises a hydraulic lifting device and a buffer device. The bottom end of the lifting rope is driven by the lifting motor to move towards the hoisting point, so as to lift the structure to be lifted connected with the bottom end of the lifting rope and lift the structure to be lifted below the hoisting point. The fixed part and the pulling structure in the buffer device are driven by the pulling motor to drive the pulling end to approach the shell, so as to exert a horizontal pulling force on the structure to be lifted connected with the pulling end, which can offset the horizontal impact force generated by the horizontal deviation of the structure to be lifted in the lifting process, thereby avoiding the deviation of the structure to be lifted at the moment of lifting and avoiding the horizontal impact on the hydraulic lifting device. The pulling end is driven by the pulling motor to move away from the shell, so as to reduce the horizontal pulling force exerted by the pulling device on the structure to be lifted to zero, thereby returning the structure to be lifted to the position directly below the hoisting point, and the structure to be lifted is pulled to the installation position by the lifting rope.

[0030] The application also provides a lifting method. The hoisting point is arranged above the installation position of the structure to be lifted, and the center of the installation position falls on the line connecting the two hoisting points in the vertical projection, so as to directly lift the structure to be lifted to the installation position by the lifting rope after the structure to be lifted is returned to the position directly below the hoisting point. The buffer device and the two hoisting points are arranged on opposite sides of the structure to be lifted, so that the horizontal pulling force exerted by the pulling device on the structure to be lifted is offset by the horizontal impact force caused by the horizontal deviation of the structure to be lifted. During the lifting process, the pulling motor is controlled to reverse to gradually reduce the pulling force of the pulling device, so as to slowly return the structure to be lifted to the position below the vertical projection of the installation position. The structure to be lifted is finally lifted to the installation position by the continuous lifting of the hydraulic lifting device, so as to realize the non-in-situ lifting of the structure to be lifted and prevent the horizontal impact of the structure to be lifted at the moment of lifting from damaging the structure to be lifted and the hydraulic lifting device. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a side view schematic diagram of the hydraulic lifting system and the structure to be lifted in the embodiment of the application;

[0032] Figure 2 is a top view schematic diagram of the hydraulic lifting system and the structure to be lifted in the embodiment of the application;

[0033] Figure 3 is Figure 1 is an enlarged schematic diagram of the A area in FIG. 1;

[0034] Figure 4 is Figure 1 is an enlarged schematic diagram of the B area in FIG. 1;

[0035] Figure 5is a top view schematic diagram of a first connecting piece of the embodiment of the present application;

[0036] Figure 6 is a side view schematic diagram of a first connecting buckle of the embodiment of the present application.

[0037] In the figure, 100, hydraulic lifting system; 200, structure to be lifted; 300, installation position; 1, hydraulic lifting device; 10, lifting assembly; 11, lifting rope; 12, lifting point; 2, buffer device; 20, pulling assembly; 21, fixing piece; 22, pulling structure; 221, puller; 2211, shell; 2212, pulling part; 22121, pulling end; 222, first connecting assembly; 2221, first connecting piece; 22211, first connecting buckle; 22210, first connecting hole; 22212, first connecting pin; 2222, first hanging ring; 223, second connecting assembly; 2231, second connecting piece; 2232, second hanging ring; 22311, first connecting buckle; 22312, first connecting pin; 224, connecting rope. DETAILED DESCRIPTION

[0038] The specific embodiments of the present application are described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0039] As shown in Figure 1 and Figure 2 , a hydraulic lifting system 100 of an embodiment of the present application includes a hydraulic lifting device 1 and a buffer device 2;

[0040] The hydraulic lifting device 1 comprises two groups of spaced-apart lifting assemblies 10, each of which comprises a lifting motor (not shown in the figure), a lifting rope 11 and a lifting point 12; the two lifting points 12 are spaced apart at the same vertical height, the lifting rope 11 is slidably arranged in the lifting points 12, the top end of the lifting rope 11 is connected to the power output end of the lifting motor, and the bottom end of the lifting rope 11 is used to be connected to the structure 200 to be lifted; the lifting motor can drive the bottom end of the lifting rope 11 to move towards the lifting point 12; the buffer device 2 comprises at least two groups of buffer assemblies 20, each group of buffer assemblies 20 is located on the same side below the lifting point 12, and the buffer device 20 comprises a fixing member 21 and a pulling structure 22; the pulling structure 22 comprises a puller 221, the puller 221 comprises a shell 2211, a pulling motor (not shown in the figure) and a pulling part 2212, the pulling motor is arranged in the shell 2211, one end of the pulling part 2212 is connected to the power output end of the pulling motor, and the other end of the pulling part 2212 is a pulling end 22121, and the pulling end 22121 is used to be connected to the structure 200 to be lifted; the pulling motor can drive the pulling end 22121 to move towards or away from the shell 2211.

[0041] Based on the above technical scheme, through the two groups of spaced-apart lifting assemblies 10, the bottom end of the lifting rope 11 will move towards the lifting point 12 under the driving of the lifting motor, so as to lift the structure to be lifted connected to the bottom end of the lifting rope 11, and the structure to be lifted can be lifted to the position directly below the lifting point 12; and through the fixing member 21 and the puller 221 in the buffer device 2, the pulling end 22121 is driven by the pulling motor to move towards the shell 2211, so that the puller 221 exerts a horizontal pulling force on the structure to be lifted connected to the pulling end 22121 and directed towards the shell 2211, and since the puller 221 is connected to the fixing member 21, the fixing member 21 is located on the same side of the line connecting the two lifting points 12, that is, the plurality of pullers 221 can jointly exert a horizontal pulling force on the structure to be lifted 200 in the same direction to offset the horizontal impact of the structure to be lifted 200 during lifting, thereby preventing the structure to be lifted 200 from colliding with the side horizontally offset therefrom under the action of the horizontal impact, and avoiding unnecessary horizontal force acting on the hydraulic lifting device 1, so as to avoid damage to the structure to be lifted 200 and the hydraulic lifting device 1 caused by the horizontal impact. During the lifting of the structure to be lifted 200, the pulling end 22121 is driven by the pulling motor to move away from the shell 2211, so as to reduce the pulling force exerted by the puller 221 on the structure to be lifted 200 to zero, so that the structure to be lifted 200 only receives the upward pulling force of the lifting rope 11 and returns to the position directly below the lifting point 12, so as to be lifted to the installation position 300.

[0042] Preferably, the hydraulic lifting system 100 in the embodiment selects an electric hoist as the puller, which is a common electric device that can be used to pull heavy objects. The sprocket of the electric hoist serves as the pulling part 2212, the hook fixed at the end of the sprocket serves as the pulling end 22121, and the motor of the electric hoist serves as the pulling motor. The motor of the electric hoist can drive the hook to move closer to or away from the shell. The driving structure is a prior art means, which will not be described here.

[0043] Further, as shown in Figure 1 and Figure 2 , since the hydraulic lifting device 1 includes two groups of lifting assemblies 10 arranged at intervals, in actual use, in order to reduce the shaking problem of the structure to be lifted during hydraulic lifting, each lifting rope 11 is usually connected to the two ends of the structure to be lifted 200. To correspond to the arrangement of the hydraulic lifting device 1, the buffer device 2 includes two groups of buffer assemblies 20, which are respectively connected to the two ends of the structure to be lifted, so that the stress of the structure to be lifted 200 is balanced during lifting and returning.

[0044] Preferably, in the embodiment, the line connecting the centers of the two fixing members 21 is parallel to the line connecting the centers of the two lifting points 12, thereby facilitating the overall stress balance of the structure to be lifted 200 during lifting and facilitating the accurate calculation of the pulling force that each puller 221 should exert.

[0045] Preferably, as shown in Figure 2 , define the horizontal distance between the centers of the two fixing members 21 as D1, and define the horizontal distance between the centers of the two lifting points 12 as D2. When D1 is large, the fixing members 21 will be distributed at the two ends of the structure to be lifted 200 and will be at a certain distance from the structure to be lifted 200. The larger D1 is, the farther the distance is, so that only part of the pulling force exerted by the puller 221 on the structure to be lifted 200 can be opposite to the horizontal impact force, while the other part is perpendicular to the horizontal impact force and cannot offset the horizontal impact force, which will require the puller 221 to provide greater pulling force and will reduce the pulling efficiency of the puller 221. When D1 is small, the fixing members 21 will be concentrated on one side of one place of the structure to be lifted 200, thereby causing the pulling force exerted by the puller 221 to be concentrated at one place and causing the stress of the structure to be lifted to be uneven.

[0046] Further, the buffer device 2 further includes a switch controller, which is electrically connected to each pulling motor. The switch controller is used to simultaneously control the forward rotation or reverse rotation of each pulling motor, so as to realize the synchronous forward rotation and reverse rotation of each pulling motor, thereby avoiding the manual control of the switches of each pulling motor and the problem of uneven pulling force at the two ends of the structure to be lifted 200 caused by the delay.

[0047] Preferably, the buffering device 2 in the embodiment comprises two groups of buffering assemblies 20, i.e. two pulling motors; in order to realize the control of the two pulling motors by the switch controller, the switch controller comprises a total switch, a stop button, a forward rotation contactor, a reverse rotation contactor, a forward rotation button and a reverse rotation button; the stop button is used to control the on-off of the circuit in the switch controller; the forward rotation button is electrically connected with the two pulling motors through the forward rotation contactor, and the reverse rotation button is electrically connected with the two pulling motors through the reverse rotation contactor. When the switch controller controls the two pulling motors, the forward rotation button is pressed to control the forward rotation contactor to be attracted, so as to start the two pulling motors and make them rotate forward; the stop button is pressed to disconnect the circuit, so that the two pulling motors stop running; the reverse rotation button is pressed to control the reverse rotation contactor to be attracted, so as to restart the two pulling motors and make them rotate reversely; thus, the synchronous forward and reverse rotation of the two pulling motors is realized, and the uneven force caused by manually controlling the forward and reverse rotation of the pulling motors is avoided.

[0048] Further, as shown in Figures 1-4 In actual use, in order to reduce the construction cost and ensure the stability of the fixing member 21, the existing concrete column or other building structure in the building is usually selected as the fixing member 21; in order to realize the connection of the pulling device 221 and the fixing member 21, the pulling structure 22 further comprises a first connecting assembly 222, the first connecting assembly 222 comprises a first connecting member 2221 and a first hanging ring 2222 which are detachably connected; the shell 2211 is connected to the first connecting member 2221, and the first hanging ring 2222 is connected with the fixing member 21, so as to realize the connection of the pulling device 221 and the fixing member 21; in addition, the first connecting member 2221 needs to be selected and replaced according to the structure 200 to be lifted, so as to ensure the reliability of the connection; therefore, the first connecting member 2221 and the first hanging ring 2222 are detachably connected, so as to be replaced.

[0049] Further, as shown in Figures 1-4As shown, similar to the connection between the puller 221 and the fixing member 21, in order to ensure the reliability of the connection between the pulling end 22121 and the structure 200 to be lifted, thereby avoiding various consequences caused by the connection failure during the pulling process, the pulling structure 22 further comprises a second connecting assembly 223, the second connecting assembly 223 comprising a second connecting piece 2231 and a second hanging ring 2232 which are detachably connected; the pulling end 22121 is connected to the second connecting piece 2231, and the second hanging ring 2232 is used to connect the second connecting piece 2231 to the structure 200 to be lifted. Similarly, since the second connecting piece 2231 needs to be selected and replaced according to the structure 200 to be lifted, the second connecting piece 2231 and the second hanging ring 2232 are arranged to be detachably connected, so as to be replaced.

[0050] Preferably, as Figures 1-4 As shown, since the horizontal distance between the fixing member 21 and the structure 200 to be lifted is greater than the distance that the pulling end 22121 can move, the pulling structure 22 further comprises a connecting rope 224, and the pulling end 22121 connects the second connecting piece 223 through the connecting rope 224.

[0051] Further, as Figures 3-6 As shown, in order to facilitate the connection of the first hanging ring 2222 and the first connecting piece 2221 and ensure the reliability of the connection, thereby preventing the problem of connection failure during the pulling process; the first connecting piece 2221 comprises a first connecting buckle 22211 and a first connecting pin 22212; the first connecting buckle 22211 is U-shaped, both ends of which are provided with first connecting holes 22210 penetrating through the two side surfaces, and the two first connecting holes 22210 are coaxially arranged, the first connecting pin 22212 sequentially passes through the first connecting hole 22210 at one end, the first hanging ring 2222 and the first connecting hole 22210 at the other end, and locks and fixes the first hanging ring 2222 and the first connecting buckle 22211.

[0052] Similarly to the arrangement of the first connecting piece 2221, the second connecting piece 2231 comprises a second connecting buckle 22311 and a second connecting pin 22312; the second connecting buckle 22311 is U-shaped, both ends of which are provided with second connecting holes penetrating through the two side surfaces, and the two second connecting holes are coaxially arranged, the second connecting pin 22312 sequentially passes through the second connecting hole at one end, the second hanging ring 2232 and the second connecting hole at the other end, and locks and fixes the second hanging ring 2232 and the second connecting buckle 22311.

[0053] The lifting method of the hydraulic lifting system according to the embodiment of the present application comprises the following steps:

[0054] S1, set the lifting points 12 above the installation position 300 of the structure 200 to be lifted, and make the center of the installation position 300 fall on the line connecting the two lifting points 12 in the vertical direction;

[0055] S2, set the buffer device 2 and the two lifting points 12 on the opposite sides of the structure 200 to be lifted, and connect the pulling structure 22 between each fixing member 21 and the structure 200 to be lifted, and connect the pulling end 22121 to the structure 200 to be lifted;

[0056] S3, calculate the horizontal impact force generated by the structure 200 to be lifted during lifting, and set the total pulling force generated by the puller 221 according to the horizontal impact force;

[0057] S4, start the lifting motor and the pulling motor at the same time, and control the lifting motor and the pulling motor to rotate forward;

[0058] S5, after the structure 200 to be lifted is lifted to a predetermined height, control the pulling motor to rotate reversely to make the pulling end 22121 away from the shell 2211;

[0059] S6, when the structure 200 to be lifted is returned to below the installation position 300 in the vertical direction, stop the pulling motor;

[0060] S7, lift the structure 200 to be lifted to the installation position 300, and stop the lifting motor.

[0061] Based on the above technical scheme, the hydraulic lifting device 1 is arranged based on the installation position 300 of the structure to be lifted, so that the center of the installation position 300 falls on the line connecting the two lifting points 12 in the vertical direction X; then the fixing member 21 and the pulling structure 22 are arranged to enable the pulling force of the puller 221 to be applied to the structure 200 to be lifted; the total pulling force generated by the puller 221 is set according to the horizontal impact force generated by the structure 200 to be lifted during lifting, and the horizontal component of the pulling force is opposite to the horizontal impact force in size and direction; the lifting motor and the pulling motor are started at the same time to avoid horizontal deviation of the structure 200 to be lifted during lifting and horizontal impact; after the structure 200 to be lifted is lifted to a predetermined height, obstacles below the installation position 300 in the vertical direction are avoided, the pulling force applied by the puller 221 is gradually reduced to zero by reversing the pulling motor, the structure 200 to be lifted is only subjected to the upward pulling force of the lifting rope 11, and is returned to below the installation position 300 in the vertical direction, the pulling motor is stopped, the lifting motor continues to drive the lifting rope 11 to lift the structure 200 to be lifted to the installation position 300, and finally the lifting motor is stopped; thereby the non-in-situ lifting of the structure 200 to be lifted is realized, and horizontal impact of the structure 200 to be lifted during lifting is avoided.

[0062] Further, in step S2, the horizontal distance between each of the fixing members 21 and the structure 200 to be lifted is defined as a first distance L1, and the horizontal distance between each of the lifting points 12 and the structure 200 to be lifted is defined as a second distance L2, the first distance L1 being greater than the second distance L2, so as to prevent the structure 200 to be lifted from colliding with the fixing members 21 when the pulling force applied by the puller 221 to the structure 200 to be lifted deviates the structure 200 to be lifted to the side of the fixing members 21 during the hydraulic lifting.

[0063] The working process of the present application is as follows: the lifting points 12 are arranged directly above the installation position 300, and the two ends of the structure 200 to be lifted are connected to the lifting ropes 11; the fixing members 21 are arranged on the same side of the structure 200 to be lifted, and the pulling end of the puller 221 is connected to the structure 200 to be lifted, and the first hanging ring 2222 and the second hanging ring 2232 are arranged at the same horizontal height; and the buffer device 2 and the lifting points 12 are arranged on the opposite sides of the structure 200 to be lifted in the horizontal direction.

[0064] The lifting motor and the pulling motor are started at the same time, and the structure 200 to be lifted is lifted; after the structure 200 to be lifted is lifted to avoid the obstacles below the direct projection of the installation position 300, the pulling motor is reversed to gradually reduce the pulling force applied by the puller to the structure 200 to be lifted to zero, so that the structure 200 to be lifted is slowly returned to below the direct projection of the installation position 300, and the pulling motor is stopped; after the structure 200 to be lifted is lifted to the installation position 300, the lifting motor is stopped.

[0065] In summary, the hydraulic lifting system 100 and the lifting method thereof provided by the embodiment of the present application include the hydraulic lifting device 1 and the buffer device 2. In order to facilitate the lifting of the structure 200 to be lifted to the installation position 300, the lifting point 12 in the hydraulic lifting device 1 is arranged directly above the installation position 300. However, this arrangement will cause the structure 200 to be lifted to be automatically horizontally offset to move to one side of the installation position 300 due to the horizontal spacing with the installation position 300 at the lifting moment. Therefore, the buffer device 2 and the lifting point 12 are arranged on the opposite sides of the structure 200 to be lifted, and the horizontal pulling force is applied to the structure 200 to be lifted by the puller 221. The horizontal pulling force applied to the structure 200 to be lifted by the puller 221 is equal in size and opposite in direction to the horizontal impact force of the structure 200 to be lifted, so as to offset the horizontal impact force and avoid the horizontal offset of the structure 200 to be lifted at the lifting moment, thereby avoiding the horizontal impact of the hydraulic lifting device 1 and the damage of the hydraulic lifting device 1 and the structure 200 to be lifted. After the structure 200 to be lifted is lifted to a certain height to avoid the obstacles affecting the in-situ assembly, the structure 200 to be lifted is slowly returned to below the installation position 300 by reversing the pulling motor, and then the structure 200 to be lifted is directly lifted to the installation position by the hydraulic lifting device 1, so as to realize the out-of-position lifting of the structure 200 to be lifted and avoid the damage of the hydraulic lifting device 1 and the structure 200 to be lifted caused by the horizontal impact of the structure 200 to be lifted during the hydraulic lifting.

[0066] The above only describes the preferred embodiments of the present application. It should be noted that those skilled in the art can make some improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A hydraulic lifting system, characterized in that, Includes hydraulic lifting equipment and buffer devices; The hydraulic lifting equipment includes two sets of lifting components spaced apart. Each lifting component includes a lifting motor, a lifting rope, and a lifting point. The two lifting points are spaced apart at the same vertical height. The lifting rope slides through the lifting points. The top end of the lifting rope is connected to the power output end of the lifting motor, and the bottom end of the lifting rope is used to connect to the structure to be lifted. The lifting motor can drive the bottom end of the lifting rope to move towards the lifting point. The buffer device includes at least two sets of buffer components, each set of buffer components being located on the same side below the suspension point. The buffer device includes a fixing component and... A traction structure; the traction structure includes a traction device, the traction device includes a housing, a traction motor and a traction part, the traction motor is disposed inside the housing, one end of the traction part is connected to the power output end of the traction motor, the other end of the traction part is a traction end, and the traction end is used to connect to the structure to be lifted, the traction motor can drive the traction end to move closer to or away from the housing; The traction structure further includes a first connecting component, which includes a detachably connected first connector and a first hanging ring; The housing is connected to the first connector, and the first hanging ring is connected to the fixing member; The traction structure further includes a second connecting component, which includes a detachably connected second connector and a second hanging ring; The pulling end is connected to the second connecting member, and the second hanging ring is used to connect the second connecting member to the structure to be lifted; The first connector includes a first connecting buckle and a first connecting pin; The first connecting buckle is U-shaped, with first connecting holes penetrating both sides of the surface at both ends, and the two first connecting holes are coaxially arranged. The first connecting pin passes through the first connecting hole at one end, the first hanging ring, and the first connecting hole at the other end in sequence, and locks and fixes the first hanging ring and the first connecting buckle. The second connector includes a second connecting buckle and a second connecting pin; The second connecting buckle is U-shaped, with a second connecting hole through both sides of the surface at both ends. The two second connecting holes are coaxially arranged. The second connecting pin passes through the second connecting hole at one end, the second hanging ring, and the second connecting hole at the other end in sequence, and locks and fixes the second hanging ring and the second connecting buckle.

2. The hydraulic lifting system as described in claim 1, characterized in that, The buffer device includes two sets of buffer components, which are respectively connected to both ends of the structure to be lifted.

3. The hydraulic lifting system as described in claim 1, characterized in that, The buffer device further includes a switch controller, which is electrically connected to each of the traction motors and is used to simultaneously control each of the traction motors to rotate forward or in reverse.

4. A lifting method for the hydraulic lifting system according to any one of claims 1-3, characterized in that, Includes the following steps: S1. Set the lifting point above the installation position of the structure to be lifted, so that the center of the installation position falls on the line connecting the two lifting points under the orthographic projection in the vertical direction; S2. The buffer device and two lifting points are respectively located on opposite sides of the structure to be lifted. Each of the fixing components is connected to the structure to be lifted by the traction structure, and the traction end is connected to the structure to be lifted. S3. Calculate the horizontal impact force generated during the lifting of the structure to be lifted, and set the total tension generated by the traction device based on the horizontal impact force; S4. Simultaneously start the lifting motor and the traction motor, and control the lifting motor and the traction motor to rotate forward; S5. After the lifting structure is lifted to the predetermined height, control the traction motor to reverse so that the traction end moves away from the housing; S6. When the structure to be lifted returns to its original position below the projection of the installation position, the traction motor is turned off; S7. Lift the structure to be lifted to the installation position and turn off the lifting motor.

5. The lifting method as described in claim 4, characterized in that, In step S2, under the orthographic projection in the vertical direction, the horizontal distance between each of the fixing components and the structure to be lifted is defined as a first distance, and the horizontal distance between each lifting point and the structure to be lifted is defined as a second distance, wherein the first distance is greater than the second distance.

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