Disclosure of Invention
In order to solve the technical problems, the technical scheme provides hoisting equipment for installing the steel structure, and solves the problems of falling and transportation of the steel structure in the background technology;
In order to achieve the above purpose, the present invention can be realized by adopting the following technical scheme:
the invention provides hoisting equipment for installing a steel structure, which comprises a suspension arm and a hydraulic device, wherein a telescopic clamping jaw is arranged at one end of the hydraulic device, which is far away from the suspension arm;
The outside that hydraulic means was provided with the subassembly of preventing falling, the subassembly of preventing falling includes symmetrical fixed connection in the mount of hydraulic means outer wall, the mount sets up not less than two, rotate on the mount and be connected with the pivot, the outer loop surface winding of pivot has the suspender, the one end fixedly connected with inserted sheet that the pivot was kept away from to the suspender, square hole has been seted up to the surface of inserted sheet, one side fixedly connected with locking dish that hydraulic means was kept away from to the mount, the pivot is close to the one end fixedly connected with annular disk of locking dish, annular disk outer loop surface rotation is connected with the follow-up dish, the locking tooth has been seted up to the outer wall of follow-up dish, annular surface fixedly connected with stopper in the follow-up dish, the stopper is located the motion orbit of annular disk, fixedly connected with support frame on the hydraulic means, the support frame sets up not less than two, the spacing hole has been seted up on the support frame surface, the last rotatory rotary block is connected with rotatory piece, rotatory piece inner chamber fixedly connected with spring telescopic link, the bottom fixedly connected with bottom plate of spring telescopic link, rotatory piece bottom fixedly connected with jack, rotatory piece is seted up the rotatory piece, every side is less than two fixed connection has the fixed slot, the fixed connection has the fixed slot is kept away from.
Preferably, the rotating shaft is fixedly connected with the hanging belt, the hanging belt is matched with the limiting hole, the inserting piece is in a T shape, the inserting piece is in sliding connection with the inserting hole, and the square hole is matched with the triggering piece.
Preferably, the locking disk is in engagement with the follower disk.
Preferably, the connecting spring is fixedly connected with the rotating block, the reset block is shaped like earth, and the reset block is slidably connected with the fixing groove.
Preferably, the outside of hydraulic means is provided with the resilience subassembly, the resilience subassembly includes the disc of fixed connection on the mount, the inside fixedly connected with restriction piece of disc, the inside rotation of disc is connected with clockwork spring, the inside fixedly connected with restriction post of disc, the restriction post is provided with a plurality of and is the circumference and arranges, the inside rotation of disc is connected with the linkage post, the restriction groove has been seted up on the surface of linkage post.
Preferably, one end of the clockwork spring is positioned at the bottom of the limiting block, one end of the clockwork spring, which is close to the middle part of the disc, is inserted into a limiting groove on the linkage column, the limiting column is positioned on the outer wall of the clockwork spring, and the linkage column is fixedly connected with the rotating shaft.
Preferably, the inside of davit is provided with the removal subassembly, the removal subassembly includes the servo motor of fixed connection in the davit inside, servo motor's output shaft fixedly connected with threaded rod, threaded rod surface threaded connection has the movable block, the inside fixedly connected with guide bar of servo motor, davit inner chamber lateral wall symmetry rotation is connected with the synchronizing wheel, the synchronizing wheel is provided with two, the cover is equipped with the hold-in range between the synchronizing wheel, the outer wall fixedly connected with balancing weight of hold-in range, the fixed surface of davit is connected with the slide bar.
Preferably, the moving block is fixedly connected with the hydraulic device, the threaded rod is rotatably connected with the suspension arm, and the moving block is slidably connected with the guide rod.
Preferably, the moving block is fixedly connected with the synchronous belt, and the balancing weight is in sliding connection with the sliding rod.
From the above, the advantages in the present invention are:
Through the meshing of locking claw on the follow-up dish and locking dish inner ring tooth to cooperate the annular dish, make the suspender lock rapidly, thereby realize the effect that the steel construction is prevented falling, compare in prior art, only adopt mechanical clamp centre gripping fixed steel structure, not dispose the mode of preventing the measure of falling, this device utilizes the steel construction to exert enough big force in the moment of taking place to fall, make the pivot drive annular dish fast rotation, utilize centrifugal force to make the follow-up dish combine together with the locking dish, thereby lock the suspender rapidly, avoid prior art because rely on flexible clamping jaw fixed, if hydraulic means is inefficacy, flexible clamping jaw can't centre gripping steel construction, cause the steel construction to fall out of control, so that whole equipment has the redundant protection of suspender, can effectively prevent that the steel construction from continuing to fall, thereby avoided the emergence of fall accident, constructor's safety has been ensured.
Through after the fixed steel construction of flexible clamping jaw centre gripping, walk around the bottom of steel construction with the suspender and fix the suspender to the suspender realizes the bearing effect to the steel construction, compare in prior art only use mechanical clamp's mode, this device utilizes the suspender to form more even support along the steel construction bottom, can disperse the atress of steel construction more nimble when using with flexible clamping jaw cooperation, when avoiding only having to bear all weights of steel construction by flexible clamping jaw hoist steel construction, be in high load state for a long time, in this way, apply ascending pulling force to the steel construction through the cooperation between suspender and the clockwork spring, reduce the burden of flexible clamping jaw, reduce equipment wearing and tearing, help prolonging the life of flexible clamping jaw and lifting device.
Through the removal of movable block, drive hydraulic means and flexible clamping jaw and remove jointly for flexible clamping jaw can carry out the centre of position centre of gravity position to the steel construction and centre of gravity, compare in prior art and carry out the centre of gravity position to the centre of steel construction and carry out the centre of gravity centre of holding, the centre of gravity is located the vertical position below of flexible clamping jaw all the time when flexible clamping jaw can remove and adjust the pinch point according to the geometric centre of steel construction, thereby let hoist and mount system be in balanced state, so can avoid adopting fixed clamping jaw position to hoist and mount, because the difference of the length of different steel constructions, the clamping point is far away from the centre of gravity position of steel construction, the hoist and mount that results in rise the in-process because of the focus skew produces the danger of tipping, rocking even droing.
When the steel structure is transported by the moving block, the balancing weight moves synchronously in the direction opposite to the moving direction of the moving block, so that the stability in the transportation process is ensured, compared with the prior art which generally adopts a mode of not adding the balancing weight, the device provides reverse moment by utilizing the reverse movement of the balancing weight, effectively balances the gravity center change of the suspension arm, the gravity center change of the suspension arm is prevented from causing the instability or overturning risk of the equipment, in a mode that the weight block is not configured, when the equipment works under the high altitude or wind power condition, the equipment is easily affected by external force, the balance of the suspension arm can be kept by synchronously moving the weight block along with the movement of the moving block, the shaking amplitude of the suspension arm is reduced, and the operation safety is improved.
Drawings
FIG. 1 is a front perspective view of the overall structure of the present invention;
FIG. 2 is a schematic view of the interior of a boom of the present invention in a cut-away perspective;
FIG. 3 is a schematic perspective view of a fall arrest assembly of the present invention;
FIG. 4 is an exploded perspective view of the shaft and harness of the present invention;
FIG. 5 is a schematic view in plan view of the interior of the locking plate of the present invention;
FIG. 6 is a schematic perspective view of the strap and tab related components of the present invention;
FIG. 7 is an exploded perspective view of the support frame and harness of the present invention;
FIG. 8 is a schematic view of the inside of a rotary block of the present invention in a cutaway perspective;
FIG. 9 is an exploded perspective view of the rotary block and trigger of the present invention;
FIG. 10 is a schematic view of the disk of the present invention in perspective view with the interior thereof cut away;
FIG. 11 is a perspective view of a servo motor and moving block related components of the present invention;
fig. 12 is a perspective view of the related parts of the counterweight and slide bar of the invention.
Wherein, the reference numerals in the invention are as follows:
1. The lifting arm is provided with a lifting arm, a hydraulic device, a telescopic clamping jaw and a lifting arm;
the anti-falling assembly comprises 41, a fixed frame, 42, a rotating shaft, 43, a hanging strip, 44, an inserting sheet, 45, a square hole, 46, a locking disc, 47, an annular disc, 48, a follow-up disc, 49, a limiting block, 410, a supporting frame, 411, a limiting hole, 412, a rotating block, 413, a spring telescopic rod, 414, a bottom plate, 415, an inserting hole, 416, a triggering piece, 417, a connecting spring, 418, a fixing groove, 419, a small spring, 420 and a resetting block;
The rebound assembly comprises 51, a disc, 52, a limiting block, 53, a clockwork spring, 54, a limiting column, 55 and a linkage column;
61, a servo motor, 62, a threaded rod, 63, a moving block, 64, a guide rod, 65, a synchronous wheel, 66, a synchronous belt, 67, a balancing weight, 68 and a sliding rod.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
Referring to fig. 1 to 12, in order to provide an embodiment of the present invention, a hoisting apparatus for installing a steel structure is provided, which will be described in detail below:
the following aims at the assembly of steel structural members of an offshore observation station, an offshore hydrometeorological platform and the like, so that the problems of the assembly, the hoisting and the like of the steel structural members of the offshore observation platform are solved.
The hoisting equipment for installing the steel structure comprises a suspension arm 1 and a hydraulic device 2, wherein a telescopic clamping jaw 3 is installed at one end, far away from the suspension arm 1, of the hydraulic device 2, and the hydraulic device 2 is used for driving the telescopic clamping jaw 3, so that the telescopic clamping jaw 3 can clamp the steel structure, and hoisting work is carried out;
As shown in fig. 2 to 9, the outside of the hydraulic device 2 is provided with a fall-preventing component, the fall-preventing component comprises a fixed frame 41 which is symmetrically and fixedly connected with the outer side wall of the hydraulic device 2, at least two fixed frames 41 are arranged, a rotating shaft 42 is rotationally connected on the fixed frame 41, the outer ring surface of the rotating shaft 42 is wound with a hanging strip 43, one end of the hanging strip 43 far away from the rotating shaft 42 is fixedly connected with an inserting sheet 44, the surface of the inserting sheet 44 is provided with a square hole 45, one side of the fixed frame 41 far away from the hydraulic device 2 is fixedly connected with a locking disc 46, one end of the rotating shaft 42 close to the locking disc 46 is fixedly connected with an annular disc 47, the outer ring surface of the annular disc 47 is rotationally connected with a follow-up disc 48, the outer wall of the follow-up disc 48 is provided with locking teeth, the follow-up disc 48 is contacted with the annular disc 47, the inner ring surface of the follow-up disc 48 is fixedly connected with a limiting block 49, the limiting block 49 is positioned on the moving track of the annular disc 47, the limiting block 49 is contacted with one end of the annular disc 47, the hydraulic device 2 is symmetrically and fixedly connected with the supporting frames 410, the supporting frames 410 are provided with at least two limiting holes 411, the supporting frames 410 are rotatably connected with rotating blocks 412, the inner cavities of the rotating blocks 412 are fixedly connected with spring telescopic rods 413, each spring telescopic rod 413 consists of a telescopic rod and a spring sleeved outside the telescopic rod, the bottoms of the spring telescopic rods 413 are fixedly connected with a bottom plate 414, the bottoms of the rotating blocks 412 are provided with inserting holes 415, the inner cavities of the rotating blocks 412 are rotatably connected with triggering pieces 416, one ends of the triggering pieces 416 are abutted against the bottom plate 414, the surfaces of the triggering pieces 416 are fixedly connected with connecting springs 417, one ends of the connecting springs 417, which are far away from the triggering pieces 416, are fixedly connected with the inner cavity top surfaces of the rotating blocks 412, the inner cavity of each rotating block 412 is symmetrically provided with fixing grooves 418, the fixing grooves 418 are provided with at least two groups, each group of fixing grooves 418 are provided with two, a small spring 419 is fixedly connected to the fixing groove 418, and a reset block 420 is fixedly connected to one side, away from the fixing groove 418, of the small spring 419.
Further, as shown in fig. 4, the outer surface of the rotating shaft 42 is fixedly connected with one end of the inner coil of the hanging strip 43, the width of the hanging strip 43 is matched with the width of the limiting hole 411, the hanging strip 43 penetrates out of the limiting hole 411, the shape of the inserting piece 44 is in a T shape, the inserting piece 44 is slidably connected with the inserting hole 415, and the square hole 45 is matched with the triggering piece 416.
Further, as shown in FIG. 5, the teeth of the inner ring of the lock disk 46 are in meshed engagement with the lock teeth on the follower disk 48.
Further, as shown in fig. 8 and 9, the reset block 420 has a shape of "earth", and the reset block 420 is slidably connected to the fixing groove 418.
Further, as shown in fig. 10, a rebound assembly is disposed on the outer side of the hydraulic device 2, the rebound assembly includes a disc 51 fixedly connected to the fixing frame 41, the disc 51 is located on one side of the fixing frame 41 far away from the locking disc 46, a limiting block 52 is fixedly connected to an inner ring surface of the disc 51, a spring 53 is rotatably connected to the inner side of the disc 51, limiting columns 54 are fixedly connected to the inner side of the disc 51, the limiting columns 54 are disposed in a plurality of circumferentially arranged manner, a linkage column 55 is rotatably connected to an inner center position of the disc 51, and a limiting groove is formed in an outer surface of the linkage column 55.
Further, as shown in fig. 10, one end of the spring 53 is located at the bottom of the limiting block 52, the end of the spring 53 near the center of the disc 51 is inserted into a limiting groove on the linkage post 55, the limiting posts 54 are all located on the outer wall of the spring 53, the limiting posts 54 cooperate with the limiting block 52 to limit rotation of the spring 53 when the spring 53 is wound, and the linkage post 55 is fixedly connected with one end of the rotating shaft 42 far away from the annular disc 47.
When in operation, the device comprises:
the device can support the steel structure and prevent the steel structure from falling, and the detailed steps are as follows:
Firstly, clamping and fixing a steel structure, a worker controls the hydraulic device 2 and the telescopic clamping jaw 3 through the controller to enable the telescopic clamping jaw 3 to descend, when the telescopic clamping jaw 3 descends to the position where the steel structure is located, the worker controls the telescopic clamping jaw 3 through the controller to enable the telescopic clamping jaw 3 to clamp the steel structure, after the telescopic clamping jaw 3 clamps and fixes the steel structure, the worker pulls the inserting sheet 44 to enable the hanging strip 43 on the rotating shaft 42 to be pulled out of the limiting hole 411 and move together with the inserting sheet 44, then the inserting sheet 44 and the hanging strip 43 are wound around the bottom of the steel structure, the steel structure is tied through the hanging strip 43, and then the inserting sheet 44 is inserted into the inserting hole 415;
During insertion of the tab 44 into the receptacle 415, the end of the tab 44 presses the bent portion of the trigger 416 on the side near the bottom plate 414, so that the trigger 416 rotates clockwise about the rotational connection with the rotating block 412, and the connecting spring 417 is compressed by the trigger 416, while the tab 44 pushes the bottom plate 414 during insertion, so that the spring extension rod 413 contracts until the bent portion of the trigger 416 on the side near the bottom plate 414 contacts the square hole 45 on the tab 44, at which time the trigger 416 stops rotating clockwise, and with continued insertion of the tab 44, the trigger 416 rotates counterclockwise by the resilience of the connecting spring 417 in the compressed state until rotating back to the initial position, at which time the bent portion of the trigger 416 on the side near the bottom plate 414 has been inserted into the square hole 45 on the tab 44, thereby preventing the tab 44 from being disengaged from the rotating block 412;
during the process of drawing out the hanging strip 43, the rotating shaft 42 rotates clockwise to drive the linkage post 55 to rotate clockwise, so that the winding part of the clockwork spring 53 rotates together with the linkage post 55, and the winding part of the clockwork spring 53 is stretched, thereby storing torque energy;
after the elbow part of the trigger piece 416 near one side of the bottom plate 414 is inserted into the square hole 45 on the insert piece 44, the insert piece 44 cannot be separated from the rotating block 412, and the hanging strip 43 applies upward tension to the steel structure by means of torque energy stored by the clockwork spring 53;
Above-mentioned in-process is through after the fixed steel construction of flexible clamping jaw 3 centre gripping, walk around the bottom of steel construction with suspender 43 and fixed suspender 43 to suspender 43 realizes the bearing effect to the steel construction, compare in prior art only use mechanical clamp's mode, this device utilizes suspender 43 to form more even support along the steel construction bottom, can disperse the atress of steel construction more nimble when using with flexible clamping jaw 3 cooperation, avoid only when lifting by flexible clamping jaw 3 hoist steel construction, flexible clamping jaw 3 need bear all weights of steel construction, be in the high load state for a long time, in this way, through the cooperation between suspender 43 and the clockwork spring 53, apply ascending pulling force to the steel construction, reduce the burden of flexible clamping jaw 3, reduce equipment wearing and tearing, help prolonging the life of flexible clamping jaw 3 and lifting device.
When the inserting piece 44 is inserted into the rotating block 412, a worker lifts the telescopic clamping jaw 3 through the controller to prepare for transporting the steel structure, if the telescopic clamping jaw 3 driving the telescopic clamping jaw 3 to clamp and fix fails in the transporting process of the steel structure and the steel structure is unstable in clamping due to gravity center, the telescopic clamping jaw 3 is accidentally opened or the steel structure slips off, so that the clamping and fixing of the steel structure are lost, the steel structure can be caused to fall, at the moment of falling of the steel structure, the hanging strip 43 can be suddenly pulled, the rotating shaft 42 can be enabled to rotate rapidly and clockwise, and in the process of rotating the rotating shaft 42 rapidly and clockwise, the annular disc 47 is driven to rotate rapidly and clockwise together, so that the following disc 48 on the annular disc 47 is subjected to inertia effect, the locking claw on the following disc 48 can be meshed with the tooth of the inner ring of the locking disc 46, the following disc 48 is blocked by the annular disc 47, further rotation of the annular disc 47 is prevented, the rotating shaft 42 is stopped from rotating, and the hanging strip 43 cannot be pulled down by the steel structure, so that the hanging strip 43 cannot be pulled down by the steel structure;
when the worker finds the situation, the boom 1 rotates and descends slowly through the controller, and after the steel structure stably falls on the ground, the hydraulic device 2 and the telescopic clamping jaw 3 are overhauled, and hoisting is prepared again;
In the process, the locking claw on the follow-up disc 48 is meshed with the inner ring teeth of the locking disc 46 and is matched with the annular disc 47, so that the hanging strip 43 is quickly locked, and the anti-falling effect of the steel structure is realized, compared with the prior art, which only adopts a mechanical clamp to clamp and fix the steel structure and does not have a mode of configuring anti-falling measures, the device applies enough force at the moment of falling by using the steel structure, so that the rotating shaft 42 drives the annular disc 47 to quickly rotate, the follow-up disc 48 on the annular disc 47 is subjected to inertia effect, further make the follower plate 48 combine together with locking dish 46 to lock suspender 43 rapidly, avoid prior art because rely on flexible clamping jaw 3 to fix, if hydraulic means 2 fail, flexible clamping jaw 3 can't the centre gripping steel construction, cause the steel construction to fall out of control, so make whole equipment have the redundant protection of suspender 43, can prevent effectively that the steel construction from continuing to fall down, thereby avoided the emergence of falling accident, ensured constructor's safety.
Further, as shown in fig. 11 and 12, a moving assembly is arranged in the boom 1, the moving assembly comprises a servo motor 61 fixedly connected to the bottom surface of the inner cavity of the boom 1, an output shaft of the servo motor 61 is fixedly connected with a threaded rod 62, the outer surface of the threaded rod 62 is in threaded connection with a moving block 63, the moving block 63 is located at the middle position of the inner cavity of the boom 1, the side wall of the inner cavity of the servo motor 61 is fixedly connected with a guide rod 64, the side wall of the inner cavity of the boom 1 is symmetrically and rotatably connected with a synchronizing wheel 65, two synchronizing wheels 65 are arranged, a synchronizing belt 66 is sleeved between the synchronizing wheels 65, the two synchronizing wheels 65 are in transmission connection through the synchronizing belt 66, the synchronizing wheel 65 and the synchronizing belt 66 are both located above the moving block 63, a balancing weight 67 is fixedly connected to the outer surface of the synchronizing belt 66, the balancing weight 67 is in contact with the top surface of the boom 1, the balancing weight 67 is located above the synchronizing belt 66, the balancing weight 67 and the moving block 63 are located on the same vertical line, and the upper surface of the boom 1 is fixedly connected with a sliding rod 68.
Further, as shown in fig. 11, the bottom surface of the moving block 63 is fixedly connected with the top surface of the hydraulic device 2, one end of the threaded rod 62 away from the servo motor 61 is rotatably connected with the side wall of the inner cavity of the boom 1, and the moving block 63 is slidably connected with the outer surface of the guide rod 64.
Further, as shown in fig. 11 and 12, the moving block 63 is fixedly connected to the outer surface of the timing belt 66, the weight 67 is slidably connected to the outer surface of the slide rod 68, and the weight 67 is synchronously moved in a direction opposite to the moving direction of the moving block 63 by the synchronization action of the timing belt 66 when the moving block 63 is moved.
When in operation, the device comprises:
The device can be through removing hydraulic means 2 and flexible clamping jaw 3 for flexible clamping jaw 3 carries out the centre gripping to the middle part position of steel construction, and the detailed step is as follows:
Because the lengths of the steel structures to be installed are not equal, in order to avoid the falling of hoisting caused by the gravity center problem of the steel structures, workers need to adjust the positions of the telescopic clamping jaws 3 according to the positions of the midpoints of the steel structures, so that the middle positions of the steel structures are clamped;
The working personnel controls the servo motor 61 to start through the controller, so that the output shaft of the servo motor 61 rotates forwards or reversely as required, when the middle point position of the steel structure is located at one side far away from the servo motor 61, the working personnel rotates the output shaft of the servo motor 61 forwards through the controller, the moving block 63 moves along the guide rod 64 in the direction far away from one side of the servo motor 61, the moving block 63 drives the hydraulic device 2 and the telescopic clamping jaw 3 to jointly move until the hydraulic device 2 and the telescopic clamping jaw 3 move to the position right above the middle point position of the steel structure, at the moment, the working personnel controls the hydraulic device 2 and the telescopic clamping jaw 3 through the controller, so that the telescopic clamping jaw 3 descends and clamps the steel structure, the clamping position is the middle point position of the steel structure, when the telescopic clamping jaw 3 clamps and fixes the steel structure, the working personnel controls the hydraulic device 2 through the controller, so that the telescopic clamping jaw 3 ascends to the height to be hoisted, and then the telescopic clamping jaw 3 stops ascending;
When the middle point position of the steel structure is located at one side close to the servo motor 61, an output shaft of the servo motor 61 is reversed by a worker through a controller, a moving block 63 moves along a guide rod 64 towards one side close to the servo motor 61, the moving block 63 drives a hydraulic device 2 and a telescopic clamping jaw 3 to jointly move until the hydraulic device 2 and the telescopic clamping jaw 3 move to the position right above the middle point position of the steel structure, at the moment, the worker stops reversing the output shaft of the servo motor 61 through the controller, and controls the hydraulic device 2 and the telescopic clamping jaw 3 through the controller, so that the telescopic clamping jaw 3 descends and clamps the steel structure, the clamping position is the middle point position of the steel structure, when the telescopic clamping jaw 3 clamps and fixes the steel structure, the worker controls the hydraulic device 2 through the controller, so that the telescopic clamping jaw 3 ascends to the height to be hoisted, and then the telescopic clamping jaw 3 stops ascending;
In the above process, the hydraulic device 2 and the telescopic clamping jaw 3 are driven to move together through the movement of the moving block 63, so that the telescopic clamping jaw 3 can clamp the midpoint position of the steel structure, compared with the prior art which usually adopts a mode of fixedly installing the telescopic clamping jaw 3, the telescopic clamping jaw 3 can move freely on the horizontal position by using the additionally installed moving block 63, and further moves to the position right above the midpoint position of the steel structure, when the telescopic clamping jaw 3 can move and adjust the clamping point according to the geometric center of the steel structure, the gravity center can be ensured to be always positioned below the vertical position of the telescopic clamping jaw 3 during hoisting of the steel structure, and thus the hoisting system is in a balanced state, the hoisting can be avoided from adopting the fixed clamping jaw position for carrying out the hoisting, and the clamping point is far away from the midpoint position of the steel structure due to the length difference of different steel structures, so that the danger of tipping, shaking and even falling occurs due to the gravity center offset in the hoisting and lifting process.
After the telescopic clamping jaw 3 clamps the steel structure, a worker makes the output shaft of the servo motor 61 rotate forward or reversely according to the lifting position through the controller, so that the moving block 63 drives the steel structure to horizontally move, in the process that the moving block 63 drives the steel structure to move along the guide rod 64, as the moving block 63 and the balancing weight 67 are both fixed on the outer surface of the synchronous belt 66, when the moving block 63 moves along the guide rod 64, the moving block 63 drives the synchronous belt 66 to rotate on the synchronous wheel 65, so that the balancing weight 67 moves along the sliding rod 68 in the direction opposite to the moving direction of the moving block 63, and the displacement of the movement of the balancing weight 67 is equal to the displacement of the movement of the moving block 63, so that the force changes caused by the moving block 63, the hydraulic device 2, the telescopic clamping jaw 3 and the steel structure can be effectively balanced, and the integral stability of the lifting operation is improved;
In the process, when the steel structure is transported by the movement of the moving block 63, the balancing weight 67 synchronously moves in the direction opposite to the movement direction of the moving block 63, so that the stability in the transportation process is ensured, compared with the prior art which generally adopts a mode of not adding the weight, the device provides a reverse moment by utilizing the reverse movement of the balancing weight 67, effectively balances the gravity center change of the suspension arm 1, the risk of equipment instability or overturning caused by gravity center change of the suspension arm 1 is avoided, in a mode that no weight block is arranged, when the equipment works under high altitude or wind power conditions, the equipment is easily affected by external force, the balance of the suspension arm 1 can be kept by synchronously moving the balancing weight 67 along with the movement of the moving block 63, the shaking amplitude of the suspension arm 1 is reduced, and the working safety is improved.
After the hoisting of the steel structure is completed, the worker presses the reset block 420 upwards, the small spring 419 is compressed by the reset block 420 to be in a compressed state, so that the reset block 420 moves vertically upwards, the end part of the reset block 420 pushes the trigger piece 416, the trigger piece 416 rotates clockwise by taking the rotating connection part with the rotating block 412 as an axis, in the process, the connecting spring 417 is compressed by the trigger piece 416, the elbow part of the trigger piece 416, which is close to one side of the bottom plate 414, is in a compressed state, is separated from the square hole 45 on the inserting piece 44, the square hole 45 and the inserting piece 44 are not limited any more, the spring telescopic rod 413 is gradually rebounded to be in an initial state, the inserting piece 44 is ejected out of the rotating block 412 in the process, then the worker releases the reset block 420, the reset block 420 returns to the initial position by means of the rebound of the small spring 419, and the trigger piece 416 rotates anticlockwise to the initial position by means of the rebound of the connecting spring 417;
when the inserting piece 44 leaves the inside of the rotating block 412, the torque energy stored by the spiral spring 53 is gradually released, so that the winding part of the spiral spring 53 rotates anticlockwise along with the linkage post 55 and gradually rotates back to the initial position, in the process, the linkage post 55 drives the rotating shaft 42 to rotate anticlockwise together, so that the winding part of the hanging strip 43 rotates anticlockwise along with the rotating shaft 42 and gradually rotates back to the initial position, meanwhile, the annular disc 47 rotates anticlockwise along with the rotating shaft 42, and the locking claw on the following disc 48 is not meshed with the teeth of the inner ring of the locking disc 46 any more and rotates back to the initial position.
The foregoing is illustrative only and is not intended to be limiting of the present invention, as any modification, equivalent replacement, improvement or the like which comes within the spirit and principles of the present invention should be included in the scope of the present invention.