CN213231184U - Hoisting sling - Google Patents

Abstract

The utility model discloses a hoist and mount hoist, including the crossbeam to connect the rope through the crossbeam connect in the first rings of crossbeam top, the symmetry set up in the crossbeam below is used for hanging the design of a set of rope and a set of chain block of lifting by crane of waiting to promote the heavy object, the crossbeam upper surface still is equipped with second rings, crossbeam below surface symmetry is equipped with a plurality of groups and supplies lift by crane the hoist and mount hangers that the rope hung. The hoisting sling can adapt to the hoisting of roof girders with different spans, and can greatly reduce the extension length of the crane jib when hoisting the roof girders with the same height, thereby being capable of selecting a mechanical vehicle with relatively small tonnage to achieve the purpose of saving the construction cost; the design reason of the chain block is to take the effects of bending in a plane and adjusting the integral balance of the roof girder into consideration after the roof girder is adjusted to bear force.

Description

Hoisting sling

Technical Field

The utility model relates to a lifting device field, concretely relates to hoist and mount hoist.

Background

The lifting appliance is a device used for lifting and taking a heavy object by a lifting machine, and the simple common lifting appliance comprises a lifting hook, a lifting belt, a lifting ring, a lifting sucker, a clamp, a fork and the like. In practical application, people often design special hoisting slings for specific weights to be hoisted.

When a factory building is built, roof girders are required to be installed, and the roof girders are herringbone girders formed by butting two symmetrical girders together.

The applicant finds that roof girders with different lengths are often required to be hoisted according to different sizes of plants in the process of installing the roof girders of the plants, and at present, no hoisting tool for the roof girders is available in the market, so that people directly hang ropes on lifting hooks of cranes, fix heavy objects to be hoisted through the ropes, and then hoist and install the roof girders. The applicant has found that the following problems are urgently needed to be solved: firstly, for roof girders (some can reach 50 meters) with larger span, in order to hang stably, the suspension points of the ropes and the roof girders move outwards, the included angle between the ropes and the horizontal plane becomes smaller, the tension on the ropes also increases sharply, and for safety, the ropes with longer length need to be replaced so as to reduce the included angle between the ropes and the horizontal plane and reduce the tension on the ropes; in the roof girder with smaller span (only 3 and 4 meters), the overlong rope can lead the heavy object to be lifted to easily swing and be unstable; the existing lifting appliance can not adapt to roof girders of all spans and needs to be replaced frequently. Secondly, when the roof girder with a large span is lifted, the lifting height of the roof girder is fixed, the rope with longer length means a crane with longer suspension arm, the length of the suspension arm of the crane corresponds to the tonnage model of the crane, the crane with larger tonnage means the crane with larger tonnage, the cost is greatly increased, and when the roof girders with different spans are lifted, the crane with large tonnage is always used, so that the waste is also great.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model discloses a hoist and mount hoist, this hoist and mount hoist can adapt to the hoist and mount of the roof beam of different spans, when lifting by crane the roof beam of co-altitude, can greatly reduced hoist davit's extension length.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a hoist and mount hoist, includes the crossbeam, connect the rope through the crossbeam connect in first rings on the crossbeam and symmetry set up in the crossbeam below is used for hanging two ropes of lifting by crane of treating the promotion heavy object, still be equipped with second rings on the crossbeam, crossbeam below symmetry is equipped with a plurality of groups and supplies lift by crane the hoist and mount hangers that the rope hung.

Further: the lifting lugs are divided into three groups.

Further: two lifting balance devices are symmetrically arranged below the cross beam, each lifting balance device comprises an upper adjusting connecting rope hung on the lifting hanging lug, a chain block connected with the upper adjusting connecting rope and a lower adjusting connecting rope connected with a lifting chain of the chain block, the upper adjusting connecting rope and the corresponding lifting rope on the same side are hung on the same lifting hanging lug, and the lower adjusting connecting rope is connected with a heavy object to be lifted.

Further: the utility model discloses a chain block, including crossbeam, crossbeam top, lift by crane, rope, hanging, first rings, the crossbeam top is equipped with the confession the crossbeam is connected the rope and is hung the connection hangers, the crossbeam connect the rope with connect between the hangers, lift by crane the rope with between the hoist and mount hangers, lift by crane the rope and wait to promote between the heavy object, go up to adjust connect the rope with between the hoist and mount hangers, go up to adjust connect the rope with between the chain block, chain block with adjust down connect between the rope and adjust down and connect the rope and wait to promote all can dismantle through the shackle and be connected between the heavy object.

Further: reinforcing plates are arranged on two sides of the first hanging ring and two sides of the second hanging ring.

Further: end plates are arranged at two ends of the cross beam.

Further: the both ends of crossbeam are equipped with prevents that slewing mechanism, prevent that slewing mechanism including fixed set up in hollow on the crossbeam prevents rotating the shell, fixed set up in prevent rotating the pivot in the shell with rotate set up in epaxial reel, be equipped with clockwork spring mechanism in the reel, clockwork spring mechanism's stiff end with pivot fixed connection, clockwork spring mechanism's free end with reel fixed connection, rope on the reel passes prevent being equipped with the handle behind the lateral wall of rotating the shell.

The beneficial effect that adopts above-mentioned technical scheme to bring does: first, the utility model discloses a first rings, second rings and a plurality of group hoist and mount hangers. When the span of the roof beam is smaller, the hoisting rope is hung on the hoisting lugs at the inner side, and the suspension arm of the crane is hung with a second hoisting ring; when the span of the roof girder is increased, the suspension points of the hoisting ropes and the roof girder move outwards, and at the moment, the hoisting ropes are only required to be gradually replaced onto the hoisting lugs on the outer side. When the span of the roof girder is increased to be larger, the pulling force of the lifting rope to the two ends of the cross beam is larger, and the suspension arm of the crane needs to be changed from the second lifting ring to the first lifting ring, so that the deformation of the cross beam caused by the deformation is reduced, and the danger is prevented. This design can be fine adapts to the promotion work of different span roof girders.

Secondly, as shown in fig. 4, when the first hanging ring is hung on the suspension arm of the crane, the roof beam is lifted to the same height, and under the condition that the included angle between the lifting rope and the horizontal plane is the same, due to the existence of the cross beam, the cross beam connecting rope and the first hanging ring, compared with the common hoisting, the lifting height of the suspension arm is reduced by h 1; when the second hoisting ring is hung on the suspension arm of the crane to lift the roof girder to the same height, the lifting height of the suspension arm of the design is reduced by h2 compared with the common lifting due to the existence of the cross beam under the condition that the included angle between the lifting rope and the horizontal plane is the same as that of the lifting rope. By adopting the design, the roof beam can be lifted to the height which can be lifted by the original large-tonnage crane only by using the crane with a shorter suspension arm and a small tonnage.

Thirdly, this design has added lifting balance device, when hoist and mount the great roof girder of span, hangs the both sides of roof girder through lifting by crane the rope, because the roof girder span is big, can reach 50 meters sometimes, only hoists through two points, and it can produce certain bending in the plane, often can make the roof girder use two line that hang between the point to take place to rotate as the axle moreover, influences the use of roof girder and the stationarity when hoist and mount, and easy accident easily takes place. This design adds two lifting by crane balancing unit, hangs the roof beam, hangs the crookedness of roof beam greatly to reduce the roof beam through four points, has increased the stability of roof beam hoist and mount process simultaneously, has guaranteed the balance of the whole atress of roof beam.

And fourthly, the strength of the first lifting ring and the second lifting ring is enhanced by the reinforcing plate. The end plates are arranged at the two ends of the cross beam, when a hoisting rope is hung on the connecting hanging lugs or the hanging position of the hoisting rope is changed, the end plates are in contact with the ground, so that a certain space is reserved between the cross beam and the ground, and the operation is convenient.

And fifthly, the two ends of the cross beam are provided with anti-rotation mechanisms, and the roof beam can be prevented from rotating in a large angle in the horizontal plane in the hoisting process by manually pulling a handle of a rope on the winding wheel by a worker, so that the stability of the hoisting process is ensured.

Six, the utility model discloses a connect through the detachable that breaks out between each part, can convenient and fast dismantle and install, each part also conveniently transports after the dismantlement.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an exploded view of the anti-rotation mechanism;

fig. 4 is a schematic diagram showing comparison between roof girders hoisted by hanging a first hoisting ring and ordinary hoisting;

fig. 5 is a schematic diagram showing the comparison between the roof girder hoisted by hanging the second hoisting ring and the ordinary hoisting;

wherein: 1. a cross beam; 2. the cross beam is connected with a rope; 3. a first hanging ring; 4. hoisting a rope; 5. a second hoisting ring; 6. hoisting the hangers; 7. an upper adjusting connecting rope; 8. a chain block; 9. a lower adjusting connecting rope; 100. connecting a hanging lug; 101. a reinforcing plate; 102. an end plate; 103. an anti-rotation housing; 104. a rotating shaft; 105. a reel; 106. a clockwork mechanism; 107. and (4) a handle.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 to 3 show a specific embodiment of the present invention: the utility model provides a hoist and mount hoist, includes crossbeam 1, connect rope 2 through the crossbeam connect in first rings 3 and symmetry on the crossbeam 1 set up in 1 below of crossbeam is used for hanging two of treating the promotion heavy object and lifts by crane rope 4, still be equipped with second rings 5 on the crossbeam 1, 1 below symmetry of crossbeam is equipped with a plurality of groups and supplies lift by crane the hoist and mount hangers 6 that rope 4 hung. Reinforcing plates 101 are arranged on two sides of the first hanging ring 3 and two sides of the second hanging ring 5. The two ends of the beam 1 are provided with end plates 102.

Preferably, the lifting lugs 6 are arranged in three groups.

As a preferred implementation: still the symmetry is equipped with two lifting balance device under crossbeam 1, lifting balance device including hang in last regulation on the hoist and mount hangers 6 connects rope 7, with go up the chain block 8 that regulation connection rope 7 is connected and with the lower regulation connection rope 9 that the chain lifting of chain block 8 is connected, go up regulation connection rope 7 and hang on same hoist and mount hangers 6 with the corresponding rope 4 that lifts by crane of homonymy, adjust connection rope 9 down and link to each other with waiting to promote the heavy object.

As a preferred implementation: the utility model discloses a chain block, including crossbeam 1, crossbeam, rope 2, lift by crane, rope 7, lift by crane, chain block 8, chain block 9, it connects rope 2, and the connection hangers 100 that the crossbeam connects rope 2 to hang, the crossbeam connect rope 2 with between the first rings 3, the crossbeam connect rope 2 with connect the hangers 100, lift by crane rope 4 with between the hoist and mount hangers 6, lift by crane rope 4 and treat to promote between the heavy object, go up to adjust connect rope 7 with between the hoist and mount hangers 6, go up to adjust connect rope 7 with between the chain block 8, chain block 8 with adjust down connect between the rope 9 and adjust down and connect rope 9 and treat to promote all to dismantle through breaking out between the heavy object and be connected.

Firstly, connecting two cross beam connecting ropes 2 with a first lifting ring 3 through shackles for standby; and the upper adjusting connecting rope 7, the chain block 8 and the lower adjusting connecting rope 9 are connected through shackles to form a lifting balance device for standby.

In the following, three sets of lifting lugs 6 are taken as an example for explanation, but not limited to only three sets of lifting lugs 6, and actually, multiple sets of lifting lugs 6 can be designed as required.

When the roof girder (within 15 meters) with smaller span is hoisted, the cross beam 1 is placed on the ground, the end plates 102 on the two sides of the cross beam are in contact with the ground, and a gap is reserved between the cross beam 1 and the ground, so that the hoisting rope 4 and the upper adjusting connecting rope 7 can be conveniently hung, one end of the hoisting rope 4 is hung on the hoisting hanging lug 6 on the inner side through a shackle, the other end of the hoisting rope 4 is hung on the roof girder through a shackle, and the suspension arm of the crane is hung on the second suspension ring 5.

When the span of the roof girder is increased (15-40 m), the position of the hoisting rope 4 is correspondingly adjusted to be hung on the middle hoisting hanging lug 6. The adjustment of the hanging position of the lifting rope 4 reduces the reduction of the large angle between the lifting rope 4 and the horizontal plane caused by the outward movement of the hanging point of the lifting rope 4 and the roof girder, and effectively avoids the situation of the rapid increase of the tension of the lifting rope 4. In this case, if the roof girder has a heavy weight, in order to reduce the deformation of the cross beam and prevent the danger, it is necessary to connect the cross beam connection rope 2 to the connection lug 100 by shackle and hang the boom of the crane from the first suspension ring 3.

When the span of the roof girder is increased to be larger (more than 40 meters, even reaching 50 meters), the hoisting ropes 4 need to be adjusted to the hoisting lugs 6 on the two sides, meanwhile, the beam connecting rope 2 is connected with the connecting lugs 100 through shackles, and the suspension arm of the crane is suspended with the first hoisting ring 3. The design can adapt to roof girders with different spans.

In fact because of the existence of crossbeam 1, the utility model discloses only need use the hoist of the short light-tonnage of davit just can raise the roof beam to the height that original large-tonnage hoist can be raised.

As an optimal scheme, in the implementation process of the above scheme, a lifting balance device is often needed to be added, after the two ends of the lifting rope 4 are respectively suspended from the lifting lugs 6 and the roof girder, the upper adjusting connecting rope 7 is connected to the lifting lugs 6 suspended by the lifting rope 4 on the same side through shackles, and the lower adjusting connecting rope 9 is suspended on the roof girder through shackles. Then slightly lifting the roof girder to make the hoisting rope 4 tense, and pulling the chain block 8 to make the upper adjusting connecting rope 7 and the lower adjusting connecting rope 9 tense. Thus, the roof girder can reduce the curvature of the roof girder generated in a plane due to stress under the action of the four suspension points, and simultaneously keep the balance of the roof girder, thereby avoiding the roof girder from rotating around the shaft of the connecting line between the lifting rope 4 and the two suspension points of the roof girder. The stability of the roof girder in the hoisting process is ensured.

As a preferred implementation: the both ends of crossbeam 1 are equipped with prevents that slewing mechanism, prevent that slewing mechanism including fixed set up in hollow on crossbeam 1 prevents rotating shell 103, fixed set up in prevent rotating pivot 104 in the shell 103 and rotate set up in the epaxial reel 105 of pivot 104, be equipped with clockwork spring mechanism 106 in the reel 105, the stiff end of clockwork spring mechanism 106 with pivot 104 fixed connection, the free end of clockwork spring mechanism 106 with reel 105 fixed connection, the rope on the reel 105 passes be equipped with handle 107 behind the lateral wall of preventing rotating shell 103.

In the hoisting process of the roof girder, the device often rotates around a vertical central shaft to influence hoisting. For this reason, the utility model discloses anti-rotation mechanism has been designed at the both ends of crossbeam 1, when the roof beam hoists, stands two staff at crossbeam 1 both ends, all manually pulls and draws handle 107, is lifted up gradually along with the roof beam, and handle 107 passes through rope pulling reel 105 and rotates, and clockwork spring mechanism 106 takes place to deform simultaneously, collects up elastic potential energy. Because the pull of staff, the rope is in the state of tightening all the time to exert the pulling force to crossbeam 1, can effectively prevent that the crossbeam from rotating around vertical central axis. After the roof girder is installed, the rope is wound on the winding wheel 105 again under the action of the clockwork 106 along with the descending of the crossbeam 1, so that the roof girder is convenient to use next time.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (7)

1. The utility model provides a hoist and mount hoist which characterized in that: including crossbeam (1), connect rope (2) through the crossbeam connect in first rings (3) on crossbeam (1) and symmetry set up in crossbeam (1) below is used for hanging two ropes (4) of lifting by crane of treating the lift heavy object, still be equipped with second rings (5) on crossbeam (1), crossbeam (1) below symmetry is equipped with the confession of a plurality of groups lift by crane hoist and mount hangers (6) that rope (4) hung.

2. A lifting sling according to claim 1, characterised in that: the hoisting hanging lugs (6) are arranged into three groups.

3. A lifting sling according to claim 1, characterised in that: the crossbeam (1) is still the symmetry down and is equipped with two lifting balance device, lifting balance device including hang in last regulation connecting rope (7) on hoist and mount hangers (6), with on adjust chain block (8) that connecting rope (7) are connected and with adjust connecting rope (9) down that the load chain of chain block (8) is connected, on adjust connecting rope (7) and hang on same hoist and mount hangers (6) with corresponding lifting rope (4) of homonymy, adjust connecting rope (9) down and link to each other with treating the lift heavy object.

4. A lifting sling according to claim 3, characterised in that: crossbeam (1) top is equipped with the confession the crossbeam is connected connection hangers (100) that rope (2) hung, the crossbeam connect rope (2) with between first rings (3), the crossbeam connect rope (2) with connect between hangers (100), lift by crane rope (4) with between hoist and mount hangers (6), lift by crane rope (4) and treat to promote between the heavy object, go up to adjust connect rope (7) with between hoist and mount hangers (6), go up to adjust connect rope (7) with between chain block (8), chain block (8) with adjust down and connect between rope (9) and adjust down and connect rope (9) and treat to promote all to dismantle through the hand pull and detain and be connected between the heavy object.

5. A lifting sling according to claim 1, characterised in that: reinforcing plates (101) are arranged on two sides of the first hanging ring (3) and two sides of the second hanging ring (5).

6. A lifting sling according to claim 1, characterised in that: end plates (102) are arranged at two ends of the cross beam (1).

7. A lifting sling according to claim 1, characterised in that: the both ends of crossbeam (1) are equipped with prevents that slewing mechanism, prevent that slewing mechanism including fixed set up in hollow on crossbeam (1) prevents rotating shell (103), fixed set up in prevent rotating pivot (104) in shell (103) and rotate set up in reel (105) on pivot (104), be equipped with clockwork spring mechanism (106) in reel (105), the stiff end of clockwork spring mechanism (106) with pivot (104) fixed connection, the free end of clockwork spring mechanism (106) with reel (105) fixed connection, rope on reel (105) passes prevent being equipped with handle (107) behind the lateral wall of rotating shell (103).

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