CN104961043B - A kind of crane barge and its Multifunctional hanging hook, Multifunctional hanging hook group - Google Patents

Abstract

The invention discloses a floating crane, its multifunctional hook and multifunctional hook group, wherein the multifunctional hook includes a fixed pulley block, a movable pulley block, a guide pulley block, a hook and a steel wire rope, and the fixed pulley block can use the first shaft pin as a The shaft swings longitudinally; the guide pulley block can swing horizontally with the second shaft pin as the axis; the movable pulley block is set under the fixed pulley block, and the hook is installed at the lower end of the movable pulley block; the wire rope is wound around the guide pulley block, movable pulley block, fixed pulley block, movable pulley block, Guide pulley block. The multifunctional hook disclosed by the present invention can realize lateral swing and longitudinal swing in the hoisting plane, and two multifunctional hooks form a floating crane with a multifunctional hook group, which can realize the turning over of large structural parts and easy assembly and replacement. There are fewer hooks, so that the auxiliary hanging beam can be eliminated, making the hoisting operation more convenient and efficient.

Description

A floating crane and its multifunctional hook, multifunctional hook group

technical field

The invention relates to the field of marine engineering, in particular to a floating crane used for marine engineering installation, a multifunctional hook, and a multifunctional hook set.

Background technique

Floating cranes are necessary and important equipment in marine engineering, and are widely used in the installation of offshore platforms, maintenance of derricks, installation of offshore wind power equipment, etc. At the same time, floating cranes are also important equipment for submarine operations. The existing floating cranes are divided into offshore floating cranes and deep sea floating cranes according to their usage. The floating crane used for offshore has a small weight, generally between 1000 and 3000 tons; the floating crane used for installation has a small weight and is mainly used for the installation of large port equipment; while the floating crane used for deep sea operations has a relatively large weight. At present, the largest floating crane in China has a lifting capacity of 12,000 tons. Globally, the lifting capacity of floating cranes is also at the same level. With the development of marine engineering, marine engineering equipment is becoming large-scale, its form is becoming more and more complex, and the requirements for construction technology are getting higher and higher. ton, and a balance beam needs to be added when hoisting large offshore structures. This scheme is not suitable for the characteristics and requirements of floating cranes in marine engineering equipment), its installation efficiency is low, and its function is single. The plane angle is basically 0°-5°, which seriously restricts the development of marine engineering.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention proposes a floating crane, its multi-functional hook, and multi-functional hook group. The multi-functional hooks form a floating crane with multi-functional hook groups, which can realize the turning over of large structural parts, easy assembly, and less hook replacement, so that the auxiliary hanging beam can be eliminated, making the hoisting operation more convenient and efficient.

To achieve the above object, the present invention adopts the following technical solutions:

The invention discloses a multifunctional hook for floating cranes. The floating crane includes a jib, a hoisting mechanism and a reversing pulley block. The multifunctional hook includes a fixed pulley block, a movable pulley block, a guide pulley block, a hook and steel wire rope, wherein: the fixed pulley set is installed on the boom through the first pivot pin, so that the fixed pulley set can swing longitudinally around the first pivot pin; the guide pulley set is installed through the second pivot pin On the boom, the guide pulley can swing laterally with the second pivot pin as the axis; the movable pulley is arranged below the fixed pulley, and the hook is connected to the lower end of the movable pulley ; after the steel wire rope passes through the reversing pulley block by the lifting mechanism, it is wound successively around the guide pulley block, the movable pulley block, the fixed pulley block, the movable pulley block, and the guide pulley block, and finally passes through the The reversing pulley block is wound to the lifting mechanism; so that the movable pulley block, the guide pulley block, and the hook can swing horizontally with the vertical direction as the axis, and make the fixed pulley block, the movable pulley block, The hook can swing longitudinally back and forth with the vertical direction as the axis.

Preferably, the multifunctional hook further includes a first connection mechanism and a balance pulley block, wherein the first connection mechanism is connected to the fixed pulley block, and the balance pulley block is installed on the first connection through a third shaft pin. In terms of mechanism, the balance pulley block can swing laterally with the third pivot pin as an axis; the steel wire rope is wound around the balance pulley block and the movable pulley block in turn before or after being wound on the fixed pulley block, so that the The balance pulley block, together with the movable pulley block, the guide pulley block, and the suspension hook, can swing horizontally from side to side with the vertical direction as the axis, and the balance pulley block can be combined with the fixed pulley block, the movable pulley block, and the suspension pulley. The hooks together take the vertical direction as the axis to swing longitudinally back and forth.

The invention also discloses a floating crane, which includes an arm frame, a hoisting mechanism, a reversing pulley block, and the above-mentioned multifunctional hook.

The present invention further discloses a multifunctional hook set for floating cranes, the floating crane includes a jib, a hoisting mechanism and a reversing pulley block, and the multifunctional hook set includes two of the above multifunctional hooks , the two multifunctional hooks are arranged adjacent to each other laterally.

Preferably, the multifunctional hook set further includes a second connecting mechanism and a main hook, the total hook is connected to the lower end of the second connecting mechanism, and two connecting mechanisms are arranged on the upper end of the second connecting mechanism. points, respectively connecting the two hooks in the multifunctional hooks.

Preferably, the two multifunctional hooks are mirror-symmetrically arranged with the vertical direction as the axis.

Preferably, the guide pulley blocks of the two multi-functional hooks are arranged laterally adjacent to each other.

Preferably, the fixed pulley block and the guide pulley block of the two multifunctional hooks are installed on the same jib frame of the floating crane, and the wire ropes of the two multifunctional hooks are respectively passed through two independent pulleys of the floating crane. The hoisting mechanism and two sets of diverting pulleys that are independent of each other are respectively wound to the guide pulleys of the two multifunctional hooks.

The invention also discloses a floating crane, which includes a jib frame, a hoisting mechanism, a reversing pulley block, and the above-mentioned multifunctional hook set.

Compared with the prior art, the present invention has the beneficial effects that: the multifunctional hook disclosed by the present invention is provided with a first pivot pin on the fixed pulley block and a second pivot pin on the guide pulley block, so that the hook not only It can rotate freely in the longitudinal direction of the ship, and can also rotate in the transverse direction of the ship, so that more functions of hoisting operations can be realized, such as turning over, erecting, hoisting, installation, etc. of large structural parts; in addition, it is composed of two multifunctional hooks Multifunctional hook set, the maximum angle between the two hooks in the transverse direction can reach 40°, so as to realize the turning operation and assembly of large and long components, and the assembly is simple, with less hook replacement, so that large workpieces can be lifted without auxiliary lifting With the assistance of the beam, the hoisting operation is more convenient and efficient.

In some preferred solutions, a first connection mechanism is provided on the fixed pulley block to connect the balance pulley block, so that when the multifunctional hook rotates in the lateral direction, the balance pulley block can drive the movable pulley block to swing laterally, so that the steel wire rope is always under uniform force and can enter and exit. The deflection angle of the pulley is small, and it will not skip jobs, thus ensuring fixed-point installation when the floating crane is working.

In some preferred schemes, the hooks of the multi-functional hook group have diverse and flexible working combinations, and the two hooks can be lifted separately, or can be connected to a total hanging ditch through the second connecting structure to form twice the lifting capacity.

Description of drawings

Fig. 1 is the schematic diagram of the multifunctional hook of preferred embodiment of the present invention;

Fig. 2 is the schematic diagram of the fixed pulley block and the balance pulley block of the multifunctional suspension hook of preferred embodiment of the present invention;

Fig. 3 is the schematic diagram of the guide pulley block of the multifunctional suspension hook of preferred embodiment of the present invention;

Fig. 4 is the schematic diagram of the movable pulley block and suspension hook of the multifunctional suspension hook of preferred embodiment of the present invention;

Fig. 5 is a schematic diagram of a transverse angle of 40° in a multifunctional hook group according to a preferred embodiment of the present invention;

Fig. 6 is a schematic diagram of the overall composition and structure of the multifunctional hook group in the preferred embodiment of the present invention;

Fig. 7 is a schematic diagram of the connection between the general hook and the hook of the multi-functional hook set in a preferred embodiment of the present invention;

Fig. 8 is a schematic diagram of wire rope winding of the multifunctional hook set in the preferred embodiment of the present invention.

detailed description

The present invention will be further described below with reference to the accompanying drawings and in combination with preferred embodiments.

The invention discloses a multifunctional hook for floating cranes. The floating crane includes a jib, a hoisting mechanism and a reversing pulley block. The multifunctional hook includes a fixed pulley block, a movable pulley block, a guide pulley block, a hook and steel wire rope, wherein: the fixed pulley set is installed on the boom through the first pivot pin, so that the fixed pulley set can swing longitudinally around the first pivot pin; the guide pulley set is installed through the second pivot pin On the boom, the guide pulley can swing laterally with the second pivot pin as the axis; the movable pulley is arranged below the fixed pulley, and the hook is connected to the lower end of the movable pulley ; after the steel wire rope passes through the reversing pulley block by the lifting mechanism, it is wound successively around the guide pulley block, the movable pulley block, the fixed pulley block, the movable pulley block, and the guide pulley block, and finally passes through the The reversing pulley block is wound to the lifting mechanism; so that the movable pulley block, the guide pulley block, and the hook can swing horizontally with the vertical direction as the axis, and make the fixed pulley block, the movable pulley block, The hook can swing longitudinally back and forth with the vertical direction as the axis. In a further solution, the multifunctional hook also includes a first connection mechanism and a balance pulley block, wherein the first connection mechanism is connected to the fixed pulley block, and the balance pulley block is installed on the first fixed pulley block through a third shaft pin. A connection mechanism, so that the balance pulley can swing laterally with the third pivot pin as the axis; the steel wire rope is wound around the balance pulley and the movable pulley in turn before or after being wound on the fixed pulley, so that The balance pulley block can swing horizontally with the movable pulley block, the guide pulley block, and the hook with the vertical direction as the axis, and the balance pulley block can be combined with the fixed pulley block, the movable pulley block, and the fixed pulley block. The suspension hooks swing back and forth longitudinally with the vertical direction as the axis.

One embodiment of the invention discloses a multi-functional hook used for floating cranes. The floating cranes include a jib frame, a hoisting mechanism and a reversing pulley block. As shown in Figure 1, the multifunctional hook includes a fixed pulley block 10, a movable pulley block 20, a guide pulley block 30, a balance pulley block 40, a hook 50, a wire rope 60 and a first connecting mechanism 70; The block pulley 10 is installed on the boom (not shown) of the floating crane through the first pivot pin 11, so that the fixed pulley block 10 can swing longitudinally with the first pivot pin 11 as the axis; The two shaft pins 31 are installed on the jib (not shown) of the floating crane, so that the guide pulley block 30 can swing laterally with the second shaft pin 31 as the axis; The connection mechanism 70, the balance pulley block 40 is installed on the first connection mechanism 70 through the third pivot pin 41, so that the balance pulley block 40 can swing laterally with the third pivot pin 41 as the axis; The lower end of block pulley 20; With reference to Fig. 8, steel wire rope 60 is by the hoisting mechanism (not shown in the figure) of floating crane, after passing through the reversing pulley block (not shown in figure) of floating crane, winding guide pulley block 30 and moving pulley block 20 successively, then The fixed pulley block 10, the movable pulley block 20, and the balance pulley block 40 are respectively wound, and then the movable pulley block 20 and the guide pulley block 30 are wound in turn, and finally wound to the hoisting mechanism (not shown in the figure) through the reversing pulley block; wherein the fixed pulley block 10 and the balance block The block pulleys 40 are connected by the block pulleys 20 . Wherein, after the steel rope 60 is wound from the guide pulley block 30 to the movable pulley block 20, the winding of the steel wire rope 60 can have the following situations: ① winding the fixed pulley block 10, the movable pulley block 20, the balance pulley block 40, the movable pulley block 20, and the guide pulley block 30 in sequence; ② Winding balance pulley block 40, movable pulley block 20, fixed pulley block 10, movable pulley block 20, guide pulley block 30 in sequence; Pulley block 30; ④ winding balance pulley block 40, movable pulley block 20, fixed pulley block 10, movable pulley block 20, balance pulley block 40, movable pulley block 20, guide pulley block 30; Pulley block 20, fixed pulley block 10, movable pulley block 20, balance pulley block 40, movable pulley block 20, guide pulley block 30; Fixed pulley block 10, movable pulley block 20, guide pulley block 30; etc.

In a more specific embodiment, the movable pulley block 20, the guide pulley block 30, the balance pulley block 40, and the suspension hook 50 can swing horizontally with the vertical direction as the axis; Take the vertical direction as the axis to swing longitudinally back and forth.

Another embodiment of the present invention discloses a floating crane, which includes a jib, a hoisting mechanism, a redirecting pulley block, and the above-mentioned multifunctional hook.

Another embodiment of the present invention discloses a multifunctional hook set for floating cranes. The floating crane includes a jib, a hoisting mechanism and a reversing pulley block; as shown in Figure 5, the multifunctional hook set includes two The above-mentioned multi-functional hooks, the composition and connection relationship of the multi-functional hooks will not be repeated here; wherein the two multi-functional hooks in the multi-functional hook group are arranged laterally adjacent to each other. Further, the two multifunctional hooks are mirror-symmetrically arranged with the vertical direction as the axis, and the guide pulley blocks 30 of the two multifunctional hooks are arranged laterally adjacent to each other.

Among them, the fixed pulley block 10 and the guide pulley block 30 of the two multifunctional hooks are installed on the same jib frame of the floating crane. As shown in FIG. After the hoisting mechanism and two groups of independent reversing pulley blocks are respectively wound to the guide pulley blocks 30 of the two multifunctional hooks, after each pulley block of the two multifunctional hooks is wound respectively (such as the multifunctional hooks of the above-mentioned The winding method will not be repeated here), and then respectively wound to two sets of independent diverting pulley blocks and two independent lifting mechanisms of the floating crane.

In some embodiments, as shown in FIG. 6 , the multifunctional hook set further includes a second connecting mechanism 80 and a total hook 90, the total hook 90 is connected to the lower end of the second connecting mechanism 80, and the second connecting mechanism 80 The upper end of the upper end is provided with two connection points, connects the suspension hook 50 in two multifunctional suspension hooks respectively.

An embodiment of the present invention discloses a floating crane, which includes a jib, a hoisting mechanism, a redirecting pulley block, and the above-mentioned multifunctional hook set.

The multifunctional hook disclosed by the present invention can not only rotate freely in the longitudinal direction of the ship, but also the two hooks can rotate freely in the transverse direction of the ship. Since the guide pulley block and the balance pulley block are provided, the steel wire rope of the multifunctional hook can rotate freely during the lateral rotation process. There will be no large pulley deflection angle and additional additional force, that is, the steel wire rope is always under uniform force, the deflection angle is small when entering and leaving the pulley, and it will not jump jobs, thus ensuring fixed-point installation when the floating crane is working.

The multi-functional hook group disclosed by the present invention can not only rotate freely in the longitudinal direction of the ship, but also can open the two hooks in the transverse direction of the ship, the maximum included angle can reach 40°, and the distance between the horizontal hooks can be adjusted to achieve a large length. The turning operation and assembly of the components are simple and the hooks are less; at the same time, the large-scale workpiece does not need the assistance of the auxiliary lifting beam when lifting, and the balancing frame lifting beam can be eliminated, making the lifting operation convenient and efficient. This multi-functional hook set not only has the basic function of lifting thousands of tons, but also has various and flexible working combinations of the hooks; the two hooks can be lifted independently, or can be jointly lifted through the combination of hook beams to form twice the lifting capacity. Weight lifting.

The floating crane including the multi-functional hook group in the present invention can realize multiple operation modes, and is used to solve the problem of turning over large-scale marine structures in the construction process of marine engineering equipment; it is especially suitable for the installation of offshore platforms, offshore pile legs And the repair and maintenance of the derrick, the construction, installation and maintenance of offshore wind power equipment and bridge steel structure towers can greatly improve the work efficiency of marine engineering, and at the same time increase the economic benefits of floating cranes.

To sum up, the floating crane, its multi-functional hooks, and multi-functional hook sets provided by the present invention are all aimed at the construction characteristics of marine engineering equipment: the pile legs of the marine engineering platform are high in height, the structure of the offshore engineering platform is bulky, and the construction process It is necessary to turn over, erect, hoist and install large structural parts. The floating crane and its multi-functional hooks and multi-functional hook group can realize multi-point lifting, large-scale turning over, easy assembly, less hook replacement, and easy hoisting during the construction of marine equipment, thus greatly expanding the operating range of the floating crane , can realize the installation that could not be completed before, and also greatly improve the installation efficiency, reduce the installation cost, and achieve good economic benefits.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art to which the present invention belongs, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and those with the same performance or use should be deemed to belong to the protection scope of the present invention.

Claims (8)

1. a kind of Multifunctional hanging hook, for crane barge, the crane barge includes arm support, lifting mechanism and changed course assembly pulley, and its feature exists Include fixed pulley group, running block in, the Multifunctional hanging hook, leading block group, equalizer pulley group, the first bindiny mechanism, hang Hook and steel wire rope, wherein：

The fixed pulley group is arranged on the arm support by the first pivot pin, enables the fixed pulley group be with first pivot pin Axle longitudinal oscillation；The leading block group is arranged on the arm support by the second pivot pin, enables the leading block group with institute The second pivot pin is stated for axle swings laterally；The running block is arranged on the lower section of the fixed pulley group, and the suspension hook is connected to institute State the lower end of running block；

The steel wire rope is by the lifting mechanism by after the changed course assembly pulley, the leading block group, described being wound successively Running block, the fixed pulley group, the running block, the leading block group, are finally twined by the changed course assembly pulley again Around to the lifting mechanism；So that the running block, the leading block group, the suspension hook can be axle transverse direction with vertical direction Swing, and enable the fixed pulley group, the running block, the suspension hook with vertical direction be axle longitudinal direction swing；

First bindiny mechanism is connected in the fixed pulley group, and the equalizer pulley group is arranged on described by the 3rd pivot pin In first bindiny mechanism, the equalizer pulley group is set to be swung laterally by axle of the 3rd pivot pin；The steel wire rope is in winding The equalizer pulley group and the running block are extremely wound successively before or after the fixed pulley group, so that the equalizer pulley Group can laterally swing by axle of vertical direction, and make together with the running block, the leading block group, the suspension hook The equalizer pulley group can and the fixed pulley group, the running block, the suspension hook together with vertical direction as axle longitudinal direction before After swing.

2. a kind of crane barge, including arm support, lifting mechanism and changed course assembly pulley, it is characterised in that also including as claimed in claim 1 Multifunctional hanging hook.

3. a kind of Multifunctional hanging hook group, for crane barge, the crane barge includes arm support, lifting mechanism and changed course assembly pulley, its feature It is, including two Multifunctional hanging hooks as claimed in claim 1, two laterally adjacent settings of Multifunctional hanging hook.

4. Multifunctional hanging hook group according to claim 3, it is characterised in that also including the second bindiny mechanism and total suspension hook, Total suspension hook is connected to the lower end of second bindiny mechanism, and the upper end of second bindiny mechanism is provided with two tie points, The suspension hook in two Multifunctional hanging hooks is connected respectively.

5. Multifunctional hanging hook group according to claim 3, it is characterised in that two Multifunctional hanging hooks are with vertical direction For axle specular is set.

6. Multifunctional hanging hook group according to claim 5, it is characterised in that two guiding of the Multifunctional hanging hook The laterally adjacent setting of assembly pulley.

7. the Multifunctional hanging hook group according to any one of claim 3 to 6, it is characterised in that two Multifunctional hanging hooks Fixed pulley group, leading block group be arranged on the same arm support of the crane barge, two steel wire ropes of the Multifunctional hanging hook point Do not wound respectively again by after the separate changed course assembly pulley of two separate lifting mechanisms of the crane barge and two groups To two leading block groups of the Multifunctional hanging hook.

8. a kind of crane barge, including arm support, lifting mechanism and changed course assembly pulley, it is characterised in that also including such as claim 3 to 7 Multifunctional hanging hook group described in any one.