CN220723334U - Vertical hollow component hoisting fixture - Google Patents

Abstract

The utility model discloses a vertical hollow component hoisting fixture which comprises a hanging barrel, a sling, an operating rod and a clamping mechanism. The operating rod is positioned above the hanging cylinder and is connected with the top of the hanging cylinder through a sling. The clamping mechanism comprises a core hammer positioned in the hanging cylinder, more than two clamping blocks and an automatic clamping mechanism connected between the operating rod and the core hammer. The upper part of the core hammer is a cone, the bottom of the hanging cylinder is provided with an anti-drop cross beam, and the side wall of the hanging cylinder is provided with radial openings which are uniformly distributed. The fixture block is clamped on the radial opening, and the rear end of the fixture block is supported on the inclined surface of the core hammer cone. The vertical hollow component lifting device is simple in integral structure and convenient to use, realizes automatic clamping and automatic loosening of the clamping device, completely gets rid of the dependence of the lifting process on manpower, simultaneously, the internal clamping process cannot generate any damage and influence on the surface of the vertical hollow component, cannot bring any additional requirements to the installation space, and can be suitable for lifting the vertical hollow component with various shapes and specifications.

Description

Vertical hollow component hoisting fixture

Technical Field

The utility model relates to a clamp, in particular to a clamp for hoisting a vertical hollow member, and belongs to the field of building construction equipment.

Background

The vertical hollow components of prefabricated or steel structures are frequently encountered in building construction and need to be hoisted or carried, such as shafts and rings of inspection wells, water wells and shafts; another example is a steel pipe pile in pile foundation; such as steel chimneys, mechanical cooling tower vertical units, utility poles, pole poles, tower cans, and the like. Most of the products are in a slender tubular shape, and have large volume and low strength. The hoisting process is mostly vertical, and fixed mode receives certain restriction during the hoist and mount, and operating space is little, and stability is poor.

For the vertical hollow component of above type, current lifting means mainly adopts outside centre gripping or uses the hoist cable bundle to hoist in the outside, receives elongated tubular structure's influence, and its lifting means can cause vertical hollow component atress uneven, and stability is poor, easily causes vertical hollow component surface to rub, and simultaneously, the hoist and mount remove in-process danger is great, needs the manual work to assist more, exists great potential safety hazard. In addition, the vertical hollow components are mostly operated vertically in the installation process, more requirements are provided for the vertical installation space by external clamping or sling binding, and the clamping or binding operation is difficult, time-consuming and labor-consuming and high in danger in the installation completion or lifting process.

Thus, the utility model is mainly aimed at designing an automatic vertical hollow member hoisting fixture which does not need manual operation.

Disclosure of Invention

In view of the problems and the shortcomings, the utility model aims to provide the hoisting clamp capable of automatically completing the processes of clamping, hoisting and releasing the vertical hollow member from the inner side of the vertical hollow member, so as to avoid the dependence of the hoisting process on manual operation, ensure the uniform stress of the vertical hollow member in the hoisting process and fulfill the requirements of vertical hoisting and horizontal movement of the vertical hollow member.

The utility model is realized by the following technical scheme:

a vertical hollow member hoisting clamp comprises a hanging barrel, a sling, an operating rod and a clamping mechanism. The operating lever is located the hanging cylinder top, and the operating lever top is equipped with the lug, and the operating lever keeps coaxial with the hanging cylinder, and the operating lever is connected with hanging cylinder top through the hoist cable. The clamping mechanism comprises a core hammer positioned in the hanging cylinder, more than two clamping blocks and an automatic clamping mechanism connected between the operating rod and the core hammer. The upper part of the core hammer is a cone. The bottom of the hanging cylinder is provided with an anti-drop cross beam, the side wall of the hanging cylinder is provided with radial openings which are uniformly distributed and equal to the number of the clamping blocks, and the radial openings are positioned in the same horizontal plane. The fixture block is clamped on the radial opening, the rear end of the fixture block is inclined, and the rear end of the inclined fixture block is supported on the inclined surface of the core hammer cone. The front end face of the clamping block is provided with a rack, and the lower end of the rack is provided with an inwards inclined guide rib.

The automatic clamping mechanism comprises a suspender and more than two clamping hooks. The top of the suspender is embedded in the operating rod, and the embedded end is provided with a guide groove matched with the guide block in the operating rod. The bottom of the suspender is connected to the top surface of the core hammer, a cone-shaped suspending platform is fixed in the middle of the suspender, the bottom diameter of the suspending platform is larger than the top diameter, a transverse locating pin is arranged on the suspender below the suspending platform, a cone-shaped sliding table capable of sliding up and down is sleeved between the locating pin and the suspending platform, the top diameter of the sliding table is larger than the bottom diameter, and the top diameter of the sliding table is larger than or equal to the bottom diameter of the suspending platform. More than two clamping grippers are uniformly distributed on the operating rod, the upper ends of the clamping grippers are movably connected with the operating rod, the lower ends of the clamping grippers are clamped on the bottom surface of the hanging table, the turning parts of the bottoms of the clamping grippers are provided with guiding-out edges which incline towards the lower side of the outer side, and the guiding-out edges correspond to the top edges of the sliding table.

The bottom of the suspender is connected with the top surface of the core hammer in a threaded manner.

The top surface of the clamping block is provided with a limiting table corresponding to the radial opening on the hanging cylinder.

The vertical hollow component hoisting clamp has the beneficial effects that:

1. according to the utility model, the vertical hollow component hoisting fixture is formed by the hoisting cylinder, the sling, the operating rod and the clamping mechanism, so that the whole structure is compact and reasonable, the assembly and disassembly are convenient, the automatic clamping and the automatic loosening of the fixture can be realized, the dependence of the hoisting process on manpower is completely eliminated, the performance is stable, and the operation is safe;

2. the clamping and hoisting processes are carried out from the inside of the vertical hollow member, so that the surface of the vertical hollow member is not damaged or affected, and no additional requirement is provided for the installation space, thereby facilitating the hoisting and moving processes of the vertical hollow member;

3. the clamping and loosening of the clamping claw are automatically realized by utilizing the mutual matching of the clamping claw, the hanging table and the sliding table, and the clamping claw has the advantages of simple structure, good durability and strong practicability;

4. the clamping mechanism is protected by the hanging cylinder, and the clamping block is pushed and supported by the transverse extension of the clamping block and the core hammer, so that the clamping requirement of the clamping block on the vertical hollow component from the inside is met, the applicability of the hanging clamp is obviously enhanced, and the use safety and flexibility are greatly improved;

5. the hoisting device can be suitable for hoisting vertical hollow members with various shapes and specifications.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model in a first operating state;

fig. 3 is a schematic structural diagram of the working state of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings:

as shown in fig. 1, the vertical hollow member hoisting clamp provided by the utility model comprises a hoisting cylinder 6, a sling 4, an operating rod 1 and a clamping mechanism. Wherein, the operating lever 1 is located a hoist cylinder 6 top, and operating lever 1 top is equipped with lug 7, and operating lever 1 keeps coaxial with hoist cylinder 6. The sling 4 is connected between the operating rod 1 and the hanging cylinder 6, the upper end of the sling 4 is connected to a position close to the top of the operating rod 1, and the lower end of the sling 4 is connected to the top of the hanging cylinder 6. The clamping mechanism is used for clamping the external vertical hollow component from the inside, so as to realize the automatic clamping, automatic hoisting and automatic feeding of the vertical hollow component and the separation process after clamping.

As shown in fig. 1, in this example, the holding mechanism includes a core weight 16 located in the hanging cylinder 6, two clamping blocks 5, and an automatic catching mechanism connected between the operation lever 1 and the core weight 16. Wherein, the upper part of the core hammer 16 is a cone, and the lower part of the core hammer 16 is a cylinder. In order to prevent the core hammer 16 from falling out of the hanging cylinder 6, a transverse falling-preventing cross beam 17 is arranged at the bottom of the hanging cylinder 6. The side wall of the hanging cylinder 6 is provided with two radial openings which are uniformly distributed and positioned in the same horizontal plane. The clamping block 5 is clamped on the radial opening, and a limiting table 14 corresponding to the radial opening position of the hanging cylinder 6 is arranged on the top surface of the clamping block 5. The rear end of the clamping block 5 is inclined, the rear end of the inclined clamping block 5 is supported on the inclined surface of the cone of the core hammer 16, and the cone at the upper part of the core hammer 16 can push the clamping block 5 to move horizontally in the radial opening through the up-and-down movement of the core hammer 16, so that the clamping of the vertical hollow component from the inside is realized. In order to improve the clamping effect, the clamping block 5 is convenient to retract automatically, a rack 18 is arranged on the front end surface of the clamping block 5, and an inward inclined guide rib 15 is further arranged at the lower end of the rack 18. Of course, the number of the provided clips 5 may be three, four or more in order to improve the stability of the clipping.

As shown in fig. 1, the automatic gripping mechanism is used for automatic gripping and automatic releasing of the gripping. In this example, the automatic gripper mechanism comprises a boom 2 and two grippers 3. The top of the suspender 2 is embedded in the operating rod 1, a guide groove 8 is arranged at the embedded end of the suspender 2, a guide block 9 is arranged in the operating rod 1 matched with the guide groove 8, and the suspender 2 can slide up and down in the operating rod 1 through the matching of the guide block 9 and the guide groove 8. The bottom of the boom 2 is threaded onto the top surface of the core hammer 16. The middle part of the suspender 2 is fixed with a cone-shaped suspending platform 11, the suspending platform 11 and the suspender 2 are of an integrated structure, and the diameter of the bottom of the suspending platform 11 is larger than that of the top. A transverse locating pin 13 is arranged on the suspender 2 below the hanging table 11, a conical sliding table 12 capable of sliding up and down is sleeved between the locating pin 13 and the hanging table 11, and the top diameter of the sliding table 12 is larger than the bottom diameter. To facilitate disengagement of the catch 3, the top diameter of the slipway 12 is equal to the bottom diameter of the gantry 11. The two clamping claws 3 are uniformly distributed on the operating rod 1, the upper ends of the clamping claws 3 are movably connected with the operating rod 1, and the lower ends of the clamping claws 3 are clamped on the bottom surface of the hanging table 11. In order to facilitate the automatic detachment of the clamping claw 3, a guiding-out edge 10 which is inclined towards the outer side and the lower side is also arranged at the turning part at the bottom of the clamping claw 3, and the guiding-out edge 10 corresponds to the top edge of the sliding table 12. Of course, the number of the catches 3 may be three, four or more in order to improve the stability of the structure and the flexibility of use.

When the vertical hollow member lifting clamp is actually used, the vertical hollow member lifting clamp is divided into five working states, namely a lifting state of the lifting clamp, a state that the lifting clamp enters the vertical hollow member, a state that the lifting clamp automatically clamps and lifts the vertical hollow member, a state that the lifting clamp automatically loosens after the vertical hollow member is sent to a working position, and a state that the lifting clamp automatically loosens and lifts the vertical hollow member. The method comprises the following steps:

1. hoisting clamp hoisting state

As shown in fig. 1, the external crane is hooked on the lifting lug 7 of the operating rod 1, the clamping claw 3 is clamped on the bottom surface of the lifting platform 11, the lifting rod 2 drives the core hammer 16 to lift up, the cone surface of the core hammer 16 pushes the clamping block 5 to extend out of the radial opening of the lifting cylinder 6, and the limiting platform 14 is supported on the inner end surface of the radial opening. At this time, the slide table 12 is supported by the positioning pins 13, and the slings 4 are in a relaxed state.

2. The state that the hoisting clamp enters the vertical hollow component

As shown in fig. 1, when the hoisting fixture enters the vertical hollow member, the guide rib 15 of the fixture block 5 extending out of the outer side of the hanging cylinder 6 contacts with the edge of the hollow part of the vertical hollow member to generate friction and form inward extrusion on the fixture block 5, and as the hoisting fixture continuously descends, the core hammer 16 descends, the fixture block 5 continuously contracts until the fixture block 5 completely enters the vertical hollow member, and the hoisting fixture stops descending. At this time, the clamping claw 3 is still clamped on the bottom surface of the hanging table 11, the clamping block 5 is contracted at the inner side of the radial opening, the limiting table 14 is separated from the inner end surface of the radial opening, the sliding table 12 is supported on the positioning pin 13, and the sling 4 is in a loose state. Since the lifting jig has stopped being lowered at this time, the bottom surface of the core hammer 16 does not come into contact with the drop-preventing cross member 17.

3. The state when the hoisting clamp automatically clamps and hoistes the vertical hollow component

As shown in fig. 1, the hoisting clamp is lifted, the clamping claw 3 is still clamped on the bottom surface of the hoisting table 11, the operating rod 1 drives the core hammer 16 to lift up through the clamping claw 3 and the suspender 2, meanwhile, the cone of the core hammer 16 pushes the clamping block 5 to extend out of the hoisting cylinder 6, and as the core hammer 16 is lifted, the clamping block 5 continuously clamps the inner wall of the vertical hollow member through the rack 18, and finally, as the hoisting clamp is lifted, the automatic clamping and hoisting of the vertical hollow member are completed. At this time, the stopper 14 is not in contact with the radially opened inner end surface, the slide table 12 is supported by the positioning pins 13, and the slings 4 are in a relaxed state.

4. The vertical hollow component is sent to the working position and then the hoisting clamp is automatically released

As shown in fig. 1 and 2, after the vertical hollow member enters and falls into the vertical working position, the lifting fixture continues to descend, the core hammer 16 starts to fall, the fixture block 5 automatically retracts and loosens the clamping with the vertical hollow member, the bottom of the core hammer 16 is finally supported on the anti-falling cross beam 17 along with the rapid descending of the lifting fixture, the operating rod 1 still keeps downward movement under the matched guidance of the guide block 9 and the guide groove 8 at the top of the hanging rod 2, the clamping claw 3 is separated from the bottom surface of the hanging table 11, in the continuous descending process, the guiding edge 10 at the bottom surface of the clamping claw 3 is contacted with the top surface edge of the sliding table 12, and as the diameters of the guiding edge 10 are the same, the clamping claw 3 is easily expanded outwards and the tip part of the clamping claw 3 slides to the lower part of the sliding table 12, and the connection between the clamping claw 3 and the hanging rod 2 is automatically cut off. At this time, the clamping claws 3 are separated from the bottom surface of the hanging platform 11 and positioned at two sides of the sliding table 12, the clamping blocks 5 are positioned at the inner side of the hanging cylinder 6, the sliding table 12 is supported on the positioning pins 13, and the hanging cable 4 is in a loose state.

5. The state that the hoisting is separated from the vertical hollow component after the hoisting clamp is automatically loosened

As shown in fig. 1 and 3, the hoisting clamp is continuously lifted, the tip of the clamping claw 3 positioned below the sliding table 12 drives the sliding table 12 to move upwards, after the sliding table 12 contacts with the hanging table 11, the clamping claw 3 is guided by the conical surface of the sliding table 12 to be separated from the sliding table 12 and the hanging table 11 in the lifting process, and as the operating rod 1 is continuously lifted, the sling 4 is tightened, and the sling 4 directly drives the hanging cylinder 6 to be separated from the vertical hollow component. At this time, the clamping block 5 is positioned in the hanging cylinder 6, the core hammer 16 is positioned on the anti-falling cross beam 17, and the clamping claw 3 is in a free state.

So far, the one-time hoisting process is completed. The whole process does not need personnel to assist in operation, and the hoisting fixture cannot generate any influence and requirement on the vertical hollow component and the working position space.

Claims (4)

1. The vertical hollow member hoisting clamp is characterized by comprising a hanging barrel, a sling, an operating rod and a clamping mechanism; the operating rod is positioned above the hanging cylinder, the top of the operating rod is provided with a lifting lug, the operating rod is coaxial with the hanging cylinder, and the operating rod is connected with the top of the hanging cylinder through a sling; the clamping mechanism comprises a core hammer positioned in the hanging cylinder, more than two clamping blocks and an automatic clamping mechanism connected between the operating rod and the core hammer; the upper part of the core hammer is a cone; the bottom of the hanging cylinder is provided with an anti-drop cross beam, the side wall of the hanging cylinder is provided with radial openings which are uniformly distributed and have the same number as the clamping blocks, and the radial openings are positioned in the same horizontal plane; the clamping block is clamped on the radial opening, the rear end of the clamping block is inclined, and the rear end of the inclined clamping block is supported on the inclined surface of the core hammer cone; the front end face of the clamping block is provided with a rack, and the lower end of the rack is provided with an inwards inclined guide rib.

2. The vertical hollow member hoisting clamp of claim 1, wherein the automatic clamping mechanism comprises a boom and more than two clamps; the top of the suspender is embedded in the operating rod, and the embedded end is provided with a guide groove matched with a guide block in the operating rod; the bottom of the suspension rod is connected to the top surface of the core hammer; the middle part of the hanging rod is fixedly provided with a cone-shaped hanging table, the bottom diameter of the hanging table is larger than the top diameter, a transverse locating pin is arranged on the hanging rod below the hanging table, a cone-shaped sliding table capable of sliding up and down is sleeved between the locating pin and the hanging table, the top diameter of the sliding table is larger than the bottom diameter, and the top diameter of the sliding table is larger than or equal to the bottom diameter of the hanging table; more than two clamping grippers are uniformly distributed on the operating rod, the upper ends of the clamping grippers are movably connected with the operating rod, the lower ends of the clamping grippers are clamped on the bottom surface of the hanging table, the turning parts of the bottoms of the clamping grippers are provided with guiding-out edges which incline towards the outer side and the lower side, and the guiding-out edges correspond to the top edges of the sliding table.

3. A vertical hollow member lifting fixture as claimed in claim 2 wherein the boom base is threaded onto the top surface of the core hammer.

4. The vertical hollow member hoisting clamp of claim 1, wherein the top surface of the clamp block is provided with a limit table corresponding to the radial opening on the hanging cylinder.