Sling stabilizing device for crane

Abstract

The invention provides a sling stabilizing device for a crane, belongs to the technical field of hoisting machinery, and solves the problems that an existing single sling is poor in stability, long in hoisting distance, unstable in gravity center and relatively high in requirements on a sling structure and driving power. A sling stabilizing device for a crane comprises a base and a lifting hook fixedly connected to the bottom end of the base, and the periphery of the base is rotationally connected with double-layer guide wheels through movable rods. According to the invention, the double-layer guide wheels are rotatably arranged on the periphery of the base, and under the action that the outer walls of the double-layer guide wheels are sleeved with the inhaul cables and the ring cables, connection of the double-layer slings on one side of the base is realized, and under the action that the ring cables are staggered on the adjacent double-layer guide wheels, the ring cables can synchronously release the base on the two sides; the inhaul cables are connected to the objects on the two sides of the base in a sleeving mode, so that the base stably and evenly ascends and descends when the inhaul cables and the ring cables are released, and the moving stability of the base is ensured through staggered arrangement of the inhaul cables and the ring cables.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hoisting machinery, and relates to a crane, in particular to a sling stabilizing device for a crane. BACKGROUND

[0002] The crane refers to a multi-action hoisting machinery for vertically lifting and horizontally transporting heavy objects in a certain range. Some hoisting devices have the working characteristic of intermittent motion, that is, the corresponding mechanisms for taking, transporting and unloading in a working cycle work alternately. The crane is more and more widely used in the market. In the process of hoisting heavy objects, the heavy objects are easily shaken in the air due to the action of wind force or the swing of the crane, which leads to potential safety hazards.

[0003] Through retrieval, a sling stabilizing device for a crane is disclosed in Chinese patent literature

Application Number: CN201510937238.1; Publication Number: CN105439006A

[0004] Although the swing amplitude of the swing seat is limited by the limiting columns in the patent, the device can only limit and stabilize a single sling. When multiple slings are connected, the force is not evenly distributed, the installation is complex, and the existing connection of the sling and the hook through a single sling is prone to swing when the wind is strong and the hoisting is too long, which leads to the shaking of the heavy object at the lower part. In addition, the connection of the single sling to the hook requires high requirements for the sling structure and driving power during hoisting due to the large force, which increases the production cost. SUMMARY

[0005] The present application aims to solve the above-mentioned problems existing in the prior art, and provides a sling stabilizing device for a crane. The technical problems to be solved by the present application are how to stably and evenly drive the hook for stable hoisting and realize the effect of saving effort and time.

[0006] The object of the present application can be achieved by the following technical solutions: A crane sling stabilizing device, including a base and a hook fixedly connected to the bottom end of the base, the periphery of the base is rotatably connected with double-layer guide rollers through movable rods, and the outer wall of the double-layer guide rollers is sleeved with a ring cable, the middle part of the ring cable is double-wound on the surface of the side guide rollers, and the ring cable is sleeved on the inner and outer sides of adjacent double-layer guide rollers; The side guide rollers are rotatably arranged on the outer side of the top base through a rotating rod, and the surface of the top base is annularly provided with a plurality of cable winding assemblies; The top end of the top base is fixedly connected with a guide assembly, and two oppositely arranged inhaul cables are guided through the inside of the guide assembly, the two ends of the inhaul cables are wound after being connected at the bottom end of the two oppositely arranged double-layer guide rollers, and the inhaul cables are wound through the cable winding assemblies; The inside of the base is rotatably connected with a follow-up cylinder through a clockwork spring, and the outer wall of the follow-up cylinder is wound with a follow-up cable, the top end of the follow-up cable is fixedly connected with a sleeve head end, a connecting plate is connected above the sleeve head end, and the connecting plate is fixedly connected to the bottom end of the top base; The middle segment of the follow-up cable is fixedly connected with a limiting rod on the outer wall, and an activity plate is arranged above the limiting rod, a connecting lug is fixedly connected to the bottom end of the activity plate, a rope is fixedly connected to the bottom of the connecting lug, and a winding drum is wound on the end of the rope away from the connecting lug, the two ends of the winding drum are rotatably connected with a vertical plate, and the vertical plate is fixedly installed on the surface of the base.

[0007] The working principle of the present application is that the ring cable is alternately sleeved on the four double-layer guide rollers, and the middle part of the ring cable is double-wound on the four side guide rollers, so that the side guide rollers can be parallel to the base through the ring cable when rotating, and the outer wall of the double-layer guide rollers is also alternately sleeved with the inhaul cables, the two ends of the inhaul cables are sleeved with the oppositely arranged double-layer guide rollers, so that the inhaul cables can simultaneously release the cables on both sides of the base, realizing the balance of the two inhaul cables for lifting the base, and the ring cable and the inhaul cable are alternately arranged on the periphery of the base, so that the base and the top base are connected through multiple connecting cables, improving the stability of the base, and realizing the force effect of the base, at the same time, the follow-up cable is connected to the bottom end of the top base, the follow-up cable is wound on the outer wall of the follow-up cylinder, the follow-up cylinder is elastically wound and rotated in the inside of the base, so that the follow-up cable is automatically released synchronously during the lowering process of the base, the limiting rod is fixedly connected to the outer wall of the follow-up cable, the activity plate is limited above the limiting rod through the through hole, when the distance of the lowering of the base is long, the follow-up cable is released to the position of the limiting rod, the limiting rod drives the activity plate to move synchronously to the top base and continue to release the cable, the activity plate releases the cable on the outer wall of the winding drum through the rope at the bottom, so that the activity plate is lifted to support the ring cable and the inhaul cable on the outer wall between the base and the top base, which is conducive to improving the gravity of the base during lowering, ensuring the stability of the middle part of the ring cable and the inhaul cable, and avoiding the wind force deviation and shaking of the ring cable and the inhaul cable. The ring cable is a closed loop cable, and the ring cable is double-layer wound on the surface of the side guide roller after being wound around the bottom of the double-layer guide roller.

[0008] With the above structure, the closed ring cable is double-layer wound on the surface of the side guide roller by bending, and under the action of the staggered sleeve of the adjacent double-layer guide roller inside and outside the bottom of the ring cable, the stability of the adjacent surface structure connection of the ring cable is realized on the outside of the base, and the synchronous release of the ring cable on both sides of the adjacent double-layer guide roller is realized by double-layer winding the ring cable on the surface of the side guide roller, ensuring the balance of the under-hanging base.

[0009] The side guide roller is provided in four corresponding to the double-layer guide roller, and the four side guide rollers are equidistantly arranged around the top base, and the corner of the top base is provided with a cut corner capable of accommodating the installation of the side guide roller.

[0010] With the above structure, the top base is arranged in parallel above the base, and the side guide roller is arranged at the corner of the top base, so that the side guide roller stably rotates above the two adjacent double-layer guide rollers, ensuring the uniformity of the ring cable release.

[0011] The middle part of the movable plate is provided with a through hole capable of accommodating the through of the follow-up cable, and the through hole is limitingly installed above the limiting rod.

[0012] With the above structure, under the action of the through hole, the follow-up cable can move through the inside of the movable plate, and the limiting rod is fixedly installed at the threshold of the middle part of the follow-up cable, so that when the follow-up cable is released to the position of the limiting rod, the limiting rod is limited by the through hole, and under the action of the release of the follow-up cable, the limiting rod drives the movable plate to move upward, improving the gravity center of the cable, avoiding the gravity center of the cable being too low, causing the cable to shake under the influence of crosswind.

[0013] The surface of the base is fixedly connected with a support column, and the surface of the support column is connected with a movable plate.

[0014] With the above structure, the movable plate is stably shaken above the base by the support column, which is convenient for positioning the movable plate through the support column, and at the same time ensures the rotation space of the winding drum below the movable plate, which is beneficial to improve the stability of the base.

[0015] The movable plate is arranged in parallel above the base, and the movable plate is rotatably connected with a rotating drum around the movable plate.

[0016] With the above structure, the movable plate can contact the external cable and the ring cable through the rotating drum arranged around the movable plate when the movable plate is driven upward by the limiting rod, which reduces the friction and avoids interference, ensures the movement effect of the movable plate, and is beneficial to prolong the service life of the cable and the ring cable.

[0017] The fixed plate is fixedly connected to the surface of the top base, the inside of the fixed plate is rotatably connected with a winding drum, and the outer wall of the winding drum is wound with a cable; The winding drum is driven to rotate by a bidirectional motor, and the output end of the bidirectional motor is fixedly connected with the winding drum.

[0018] With the above structure, the winding assembly guides and winds the cable after winding at both ends, realizes synchronous cable winding and unwinding on both sides of the base, ensures the balance of the base lifting, prevents the skew and deviation of the lifting hook during lifting, and is beneficial to improve the stability of the base, reduce the shaking of the base, and avoid safety hazards.

[0019] The inside of the guide assembly includes a fixed seat, the fixed seat is fixedly installed at the center of the top base, the lower part of the fixed seat is rotatably connected with a lower guide roller, the upper part of the fixed seat is rotatably connected with an upper guide roller, and the lower guide roller and the upper guide roller are arranged in a vertical direction.

[0020] With the above structure, the fixed seat is arranged at the center of the top base, and the upper guide roller and the lower guide roller are rotatably arranged in the fixed seat, so that the upper guide roller and the lower guide roller can guide the opposite cables synchronously, ensuring the balance and synchronization of the opposite cables during movement.

[0021] The rotating rod is rotatably connected at the four corner cutouts of the top base, one end of the rotating rod away from the side guide roller is fixedly connected with a first bevel gear, the first bevel gear is arranged in the inside of the top base, the bottom end of the first bevel gear is meshingly connected with a second bevel gear, the bottom end of the second bevel gear is fixedly connected with a driving rod, the driving rod is driven by a driving motor, the output end of the driving motor is connected with the bottom end of the driving rod, and the driving motor is fixedly installed in the inside of the top base.

[0022] With the above structure, the second bevel gear is driven in the inside of the top base, and the meshing effect of the second bevel gear and the first bevel gear enables the four rotating rods to rotate synchronously, so that the rotating rods drive the side guide rollers to rotate synchronously in the same direction, facilitating the four side guide rollers to simultaneously wind and unwind the double-layer wound ring cable on the surface, ensuring the synchronization and consistency of the ring cable work, realizing the stable and balanced lifting of the base, and the driving structure is simple.

[0023] Compared with the prior art, the hoist cable stabilizing device has the following advantages: 1. In the application, by rotating the double-layer guide rollers around the periphery of the base, under the action of the external wall of the double-layer guide rollers sleeved with the inhaul cable and the grommet cable, the side of the base is connected with the double-layer sling, and under the action of the grommet cable staggered with the adjacent double-layer guide rollers, the grommet cable can simultaneously release the cable on both sides of the base, and by sleeving the inhaul cable on both sides of the base, the base is stably balanced during the release of the inhaul cable and the grommet cable, and by the staggered arrangement of the inhaul cable and the grommet cable, the stability of the base movement is ensured, which is beneficial to reduce the sway of the base during lifting.

[0024] 2. In the application, by connecting the top base to the top end of the follow-up cable, the follow-up cylinder can release the follow-up cable when the base is lowered, and under the action of the fixedly connected limiting rod at the threshold of the external wall of the follow-up cable, the limiting rod drives the movable plate to move upwards, which is convenient for the movable plate to drive the rotating cylinder to support between the slings, ensures the support effect of the grommet cable and the inhaul cable in the middle part when they are too long, and is beneficial to improve the gravity center of the base, avoiding the gravity center of the sling being too low, which causes the sling to sway under the influence of crosswind.

[0025] 3. In the application, by the arrangement of the grommet cable, under the action of the double-layer winding of the grommet cable on the external wall of the side guide roller, the side guide roller can simultaneously release and release the grommet cable on the external wall of the two bidirectional guide rollers, which ensures the balance of the base movement, and by the arrangement of the grommet cable and the inhaul cable, the stress points of the base are dispersed, which reduces the strength requirement and driving power requirement of the sling, and by the arrangement of the follow-up cable, the stress of the base in the middle part is facilitated, which realizes the labor-saving lifting of the base.

[0026] 4. In the application, by fixedly connecting the guide assembly to the top end of the top base, the inhaul cable can reverse above the top base, a single inhaul cable can be sleeved with the bidirectional guide rollers on both sides of the base, the inhaul cable can balance the movement of the base on both sides, and by winding the inhaul cable on both ends under the action of the cable winding assembly, the inhaul cable on both ends is connected with the driving power at the same time, which is convenient for the stable release and release of the inhaul cable, reduces the driving power requirement of the inhaul cable, has low production cost and high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of a sling stabilizing device for a crane of the application; Figure 2 is a top view connection structure schematic view of the inhaul cable and the guide assembly in the application; Figure 3 is a structural schematic view of the base and the double-layer guide roller in the application; Figure 4 is a structural schematic view of the movable plate in the application; Figure 5is a structural schematic diagram of the side guide wheel and the ring cable double-layer winding structure in the application; Figure 6 is a structural schematic diagram of the top seat and the connecting plate structure in the application; Figure 7 is a structural schematic diagram of the top seat and the guide assembly in the application; Figure 8 is a structural schematic diagram of the limiting rod and the follow-up cable in the application; Figure 9 is a top view sectional structural schematic diagram of the top seat and the rotating rod in the application; Figure 10 is a structural schematic diagram of the first bevel gear and the second bevel gear in the application; Figure 11 is an enlarged structural schematic diagram of A in the application; Figure 1 Figure 12 is a structural schematic diagram of the fixed seat in the application.

[0028] In the figure, 1, base; 2, movable rod; 3, double-layer guide wheel; 4, ring cable; 5, side guide wheel; 6, rotating rod; 7, top seat; 8, cable; 9, cable winding drum; 10, fixed plate; 11, bidirectional motor; 12, guide assembly; 1201, fixed seat; 1202, lower guide wheel; 1203, upper guide wheel; 13, movable plate; 14, rotating drum; 15, connecting lug; 16, winding drum; 17, vertical plate; 18, support column; 19, follow-up drum; 20, through hole; 21, connecting plate; 22, follow-up cable; 23, limiting rod; 24, sleeve head end; 25, first bevel gear; 26, second bevel gear; 27, driving rod; 28, lifting hook. DETAILED DESCRIPTION

[0029] The following is a specific embodiment of the application and further describes the technical solution of the application in combination with the drawings, but the application is not limited to these embodiments.

[0030] As Figures 1-12 ​As shown, a crane sling stabilizing device, comprising a base 1, a hook 28 fixedly connected to the bottom end of the base 1, a movable rod 2, double-layer guide wheels 3, a ring cable 4, side guide wheels 5, a rotating rod 6, a top seat 7, a cable 8, a cable winding drum 9, a fixed plate 10, a bidirectional motor 11, a guide assembly 12, a fixed seat 1201, a lower guide wheel 1202, an upper guide wheel 1203, a movable plate 13, a rotating drum 14, a connecting lug 15, a winding drum 16, a vertical plate 17, a support column 18, a follow-up cylinder 19, a through hole 20, a connecting plate 21, a follow-up cable 22, a limiting rod 23, a sleeve head end 24, a first bevel gear 25, a second bevel gear 26, and a drive rod 27, the double-layer guide wheels 3 are rotatably connected to the periphery of the base 1 through the movable rod 2, and the ring cable 4 is sleeved on the outer wall of the double-layer guide wheels 3, specifically, the ring cable 4 is a closed annular sling, and the middle part of the ring cable 4 is double-wound on the surface of the side guide wheels 5, so that the closed ring cable 4 is continuously wound on the surface of the side guide wheels 5 by folding double layers, and the ring cable 4 is sleeved on the inner and outer sides of adjacent double-layer guide wheels 3, so that the ring cable 4 is double-wound on the surface of the side guide wheels 5 on both sides after winding around the bottom of the double-layer guide wheels 3, through such a structure, the ring cable 4 is stably connected between adjacent surfaces on the outer side of the base 1 under the action of being staggered on the inner and outer sides of adjacent double-layer guide wheels 3, and at the same time, considering the synchronism of the rotation of the four double-layer guide wheels 3, the side guide wheels 5 are provided in correspondence with the double-layer guide wheels 3, and the four side guide wheels 5 are equidistantly arranged around the top seat 7, and the top seat 7 is provided with a cut corner for accommodating the installation of the side guide wheels 5, so that the side guide wheels 5 stably rotate above two adjacent double-layer guide wheels 3, ensuring the uniformity of the winding and unwinding of the ring cable 4; The side guide wheels 5 are rotatably arranged on the outer side of the top seat 7 through the rotating rod 6, the rotating rod 6 is rotatably connected to the cut corners around the top seat 7, one end of the rotating rod 6 away from the side guide wheels 5 is fixedly connected with the first bevel gear 25, the first bevel gear 25 is arranged inside the top seat 7, the bottom end of the first bevel gear 25 is engagedly connected with the second bevel gear 26, the bottom end of the second bevel gear 26 is fixedly connected with the drive rod 27, the drive rod 27 is driven by a drive motor, the output end of the drive motor is connected with the bottom end of the drive rod 27, and the drive motor is fixedly installed inside the top seat 7, the second bevel gear 26 is driven inside the top seat 7, and the four equidistantly distributed rotating rods 6 are synchronously rotated under the meshing action of the second bevel gear 26 and the first bevel gear 25, so as to realize the synchronous and same-direction rotation of the rotating rod 6 and the side guide wheels 5, which facilitates the winding and unwinding of the ring cable 4 double-wound on the surface of the four side guide wheels 5 at the same time, and ensures the synchronism and consistency of the operation of the ring cable 4; The surface of the top base 7 is annularly provided with a plurality of winding rope assemblies, the winding rope assembly comprises a fixed plate 10, and the fixed plate 10 is fixedly connected to the surface of the top base 7, the inside of the fixed plate 10 is rotatably connected with a winding rope drum 9, and the outer wall of the winding rope drum 9 is wound with a cable 8, the winding rope drum 9 is rotatably driven by a bidirectional motor 11, and the output end of the bidirectional motor 11 is fixedly connected with the winding rope drum 9, through the arrangement of the winding rope assembly, the winding rope assembly guides and winds the wound cable 8 at both ends, realizes synchronous winding and unwinding of the cable on both sides of the base 1, ensures the balance of the lifting of the base 1, and prevents the hook 28 from being tilted and deviated during hoisting; The top end of the top base 7 is fixedly connected with a guide assembly 12, and two oppositely arranged cables 8 are guided through the inside of the guide assembly 12, the two ends of the cable 8 are wound after being wound around the two oppositely arranged double-layer guide wheels 3 at the bottom end, and are wound by the winding rope assembly, specifically, the inside of the guide assembly 12 comprises a fixed seat 1201, and the fixed seat 1201 is fixedly installed at the top end center of the top base 7, a lower guide wheel 1202 is rotatably connected below the fixed seat 1201, an upper guide wheel 1203 is rotatably connected above the fixed seat 1201, and the lower guide wheel 1202 and the upper guide wheel 1203 are arranged in a vertical direction, the upper guide wheel 1203 and the lower guide wheel 1202 are rotatably arranged in the fixed seat 1201, and under the action of the upper guide wheel 1203 and the lower guide wheel 1202, the upper guide wheel 1203 and the lower guide wheel 1202 can guide the oppositely arranged cable 8 synchronously, ensuring the balance and synchronization of the oppositely arranged cable 8 during movement; The inside of the base 1 is rotatably connected with a follow-up cylinder 19 through a clock spring, the outer wall of the follow-up cylinder 19 is wound with a follow-up cable 22, the top end of the follow-up cable 22 is fixedly connected with a sleeve head end 24, the upper side of the sleeve head end 24 is connected with a connecting plate 21, and the connecting plate 21 is fixedly connected to the bottom end of the top base 7, the middle segment of the outer wall of the follow-up cable 22 is fixedly connected with a limiting rod 23, the upper side of the limiting rod 23 is provided with a movable plate 13, the middle part of the movable plate 13 is provided with a through hole 20 which can accommodate the follow-up cable 22, and the through hole 20 is limitingly installed above the limiting rod 23, the limiting rod 23 drives the movable plate 13 to move upward under the action of the unwinding of the follow-up cable 22, the center of gravity of the sling is improved, and the center of gravity of the sling is prevented from being too low.

[0031] As Figures 1-8As shown, the four around surfaces of the base 1 are fixedly connected with support columns 18, and the surfaces of the support columns 18 are connected with movable plates 13, through the arrangement of the support columns 18, the movable plates 13 are stably shaken above the base 1, the movable plates 13 are positioned through the support columns 18, the movable plates 13 are parallelly arranged above the base 1, and the four around surfaces of the movable plates 13 are rotatably connected with rotating cylinders 14, through the rotating arrangement of the rotating cylinders 14 around the movable plates 13, when the movable plates 13 are driven upward by the limiting rods 23, the movable plates 13 can be contacted with the external inhaul cables 8 and the grommets 4 through the periphery arranged rotating cylinders 14, the friction is reduced, the interference is avoided, the moving effect of the movable plates 13 is ensured, and the service life of the inhaul cables 8 and the grommets 4 is prolonged, meanwhile, the bottom ends of the movable plates 13 are fixedly connected with connecting lugs 15, the bottoms of the connecting lugs 15 are fixedly connected with ropes, the one end of the rope away from the connecting lug 15 is wound with a winding drum 16, the two ends of the winding drum 16 are rotatably connected with vertical plates 17, and the vertical plates 17 are fixedly installed on the surface of the base 1, through the arrangement of the connecting lugs 15 and the ropes, when the movable plates 13 are moved upward, the winding drum 16 is elastically rotated through the clockwork spring, the automatic winding and unwinding of the rope is realized, and the moving effect of the movable plates 13 is ensured.

[0032] The working principle of the present application is as follows: in use, in order to facilitate the downward fixing and hoisting of the hook 28 on the material, the driving motor is driven to rotate the driving rod 27, which drives the second bevel gear 26 to rotate in the inside of the top seat 7, the first bevel gears 25 are synchronously rotated through the meshing connection on the surface of the second bevel gear 26, the rotating rod 6 drives the four side guide wheels 5 to synchronously rotate outside the top seat 7, the side guide wheels 5 drive the double-layer ring cable 4 wound on the outer wall to release the cable, so that the ring cable 4 drives the base 1 to move downward through the double-layer guide wheels 3 below, at the same time, the bidirectional motor 11 is synchronously rotated, so that the cable drum 9 synchronously releases the cable 8, the cable 8 is balancedly released through the guide assembly 12 on both sides of the base 1, under the synchronous releasing action of the cable 8 and the ring cable 4, the base 1 is stably and balancedly lowered, at the same time, the follow-up cable 22 is connected through the connecting plate 21 at the bottom end of the top seat 7, so that the follow-up drum 19 rotates in the inside of the base 1 to release the follow-up cable 22, the limiting rod 23 is fixedly installed at the threshold of the follow-up cable 22, so that the limiting rod 23 is driven by the follow-up cable 22 to move upward when the base 1 is lowered to the threshold, the limiting rod 23 drives the movable plate 13 to move upward through the limiting of the penetrating hole 20, so that the winding drum 16 releases the cable, the movable plate 13 drives the cable to synchronously move upward, the movable plate 13 is stably moved upward through the rotating drum 14 in the inside of the cable 8 and the ring cable 4, which facilitates the support of the movable plate 13 in the middle of the sling, and ensures the stability of the multiple slings, avoids the shaking of the base 1, after the hook 28 is lowered to the position by the base 1, the material is fixed through the hook 28, the driving motor and the bidirectional motor 11 are reversely driven, so that the ring cable 4 and the cable 8 are released, the base 1 is raised, so that the follow-up cable 22 and the cable are self-wound through the elasticity of the clock spring in the follow-up drum 19 and the winding drum 16, the movable plate 13 is reset to the surface of the support column 18 through the limiting rod 23, the stability of the sling work is realized, and the working principle of the sling stability device for the crane is completed.

[0033] In summary, by interlacing the ring cable 4 on the four double-layer guide rollers 3, the middle double-layer of the ring cable 4 is wound on the four side guide rollers 5, so that the side guide rollers 5 can be parallelly laid on the base 1 through the ring cable 4 when rotating, and the outer wall of the double-layer guide roller 3 is also interlaced with the cable 8, and the two ends of the cable 8 are sleeved with the opposite double-layer guide rollers 3, so that the cable 8 can be laid on both sides of the base 1 synchronously, realizing the balance of the two cables 8 lifting the base 1, and the cables 8 and the ring cable 4 are interlaced on the side of the base 1, so that the base 1 and the top base 7 are connected by the plurality of connecting cables, improving the stability of the base 1, and realizing the force effect of the base 1, and the follow-up cable 22 is connected at the bottom end of the top base 7, and the follow-up cable 22 is wound on the outer wall of the follow-up cylinder 19, and the follow-up cylinder 19 is elastically wound and rotated in the base 1, so that the follow-up cable 22 is automatically laid out synchronously during the lowering of the base 1, and the limiting rod 23 is fixedly connected on the outer wall of the follow-up cable 22, and the movable plate 13 is limited above the limiting rod 23 through the penetrating hole 20, so that when the base 1 is lowered for a long distance, the follow-up cable 22 is laid out to the position of the limiting rod 23, and the limiting rod 23 drives the movable plate 13 to move synchronously to the top base 7 and continue to lay out, so that the movable plate 13 lays out the rope on the outer wall of the winding cylinder 16 through the bottom, so that the movable plate 13 is supported by the ring cable 4 and the cable 8 between the base 1 and the top base 7, which is conducive to improving the gravity center of the base 1 during lowering, ensuring the stability of the middle of the ring cable 4 and the cable 8, avoiding the deviation and shaking of the ring cable 4 and the cable 8 caused by wind force, and solving the problems of poor stability of the single cable, long hoisting distance, unstable gravity center, and high requirements for the structure of the cable and the driving power.

[0034] The specific embodiments described herein merely exemplify the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A sling stabilizing device for a crane, comprising a base (1) and a hook (28) fixedly connected to the bottom end of the base (1), characterized in that, The four sides of the base (1) are rotatably connected with double-layer guide wheels (3) through movable rods (2), and the outer wall of the double-layer guide wheels (3) is sleeved with a ring cable (4), the middle part of the ring cable (4) is double-layer wound on the surface of a side guide wheel (5), and the ring cable (4) is sleeved on the inner and outer sides of adjacent double-layer guide wheels (3) at intervals. The side guide wheel (5) is rotatably arranged on the outer side of the top base (7) through a rotating rod (6), and the surface of the top base (7) is annularly provided with a plurality of cable winding assemblies. The top end of the top base (7) is fixedly connected with a guide assembly (12), and two oppositely arranged inhaul cables (8) are penetrated through the inside of the guide assembly (12), the two ends of the inhaul cable (8) are wound after being connected at the bottom ends of the two oppositely arranged double-layer guide wheels (3), and are wound through the cable winding assembly. The inside of the base (1) is rotatably connected with a follow-up cylinder (19) through a clockwork spring, and the outer wall of the follow-up cylinder (19) is wound with a follow-up cable (22), the top end of the follow-up cable (22) is fixedly connected with a sleeve head end (24), the upper side of the sleeve head end (24) is connected with a connecting plate (21) penetratingly, and the connecting plate (21) is fixedly connected at the bottom end of the top base (7). The middle section of the follow-up cable (22) is fixedly connected with a limiting rod (23) on the outer wall, and the upper side of the limiting rod (23) is provided with a movable plate (13), the bottom end of the movable plate (13) is fixedly connected with a connecting lug (15), the bottom of the connecting lug (15) is fixedly connected with a rope, and the end of the rope away from the connecting lug (15) is wound with a winding cylinder (16), the two ends of the winding cylinder (16) are rotatably connected with a vertical plate (17), and the vertical plate (17) is fixedly installed on the surface of the base (1).

2. A sling stabilizing device for a crane according to claim 1, characterized in that The ring cable (4) is a closed ring sling, and the two sides of the ring cable (4) are double-layer wound on the surface of the side guide wheel (5) after being wound at the bottom of the double-layer guide wheel (3).

3. A sling stabilizing device for a crane according to claim 2, characterized in that The side guide wheel (5) is correspondingly provided with four side guide wheels (5) about the double-layer guide wheel (3), and the four side guide wheels (5) are equidistantly arranged on the four sides of the top base (7), and the corners of the top base (7) are provided with cut corners for accommodating the installation of the side guide wheel (5).

4. A sling stabilizing device for a crane as claimed in claim 1, characterized in that The middle part of the movable plate (13) is provided with a penetrating hole (20) for accommodating the passing of the follow-up cable (22), and the penetrating hole (20) is limitingly installed on the upper side of the limiting rod (23).

5. A sling stabilizing device for a crane as defined in claim 1, characterized in that The surface of the four sides of the base (1) is fixedly connected with a supporting column (18), and the surface of the supporting column (18) is connected with a movable plate (13) in a fit manner.

6. A sling stabilizing device for a crane according to claim 5, characterized in that The movable plate (13) is arranged in parallel above the base (1), and the movable plate (13) is rotatably connected with a rotating cylinder (14) on the four sides.

7. A sling stabilizing device for a crane as defined in claim 1, characterized in that The cable winding assembly comprises a fixed plate (10), and the fixed plate (10) is fixedly connected on the surface of the top base (7), the inside of the fixed plate (10) is rotatably connected with a cable winding cylinder (9), and the outer wall of the cable winding cylinder (9) is wound with an inhaul cable (8); The cable winding cylinder (9) is rotatably driven by a bidirectional motor (11), and the output end of the bidirectional motor (11) is fixedly connected with the cable winding cylinder (9).

8. A sling stabilizing device for a crane as defined in claim 1, characterized in that The inside of the guide assembly (12) comprises a fixing seat (1201) fixedly installed at the top center of the top seat (7), a lower guide wheel (1202) rotatably connected below the fixing seat (1201), and an upper guide wheel (1203) rotatably connected above the fixing seat (1201), wherein the lower guide wheel (1202) and the upper guide wheel (1203) are arranged in a vertical direction.

9. A sling stabilizing device for a crane as defined in claim 1, characterized in that The rotating shaft (6) is rotatably connected at the four cut corners of the top seat (7), one end of the rotating shaft (6) away from the side guide wheel (5) is fixedly connected with a first bevel gear (25) arranged inside the top seat (7), the bottom end of the first bevel gear (25) is meshedly connected with a second bevel gear (26), the bottom end of the second bevel gear (26) is fixedly connected with a driving rod (27), and the driving rod (27) is driven by a driving motor.

10. A sling stabilizing device for a crane according to claim 9, characterized in that The output end of the driving motor is connected with the bottom end of the driving rod (27), and the driving motor is fixedly installed inside the top seat (7).

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