CN217867655U - Hoisting device - Google Patents

Abstract

The utility model relates to a construction technical field discloses a hoisting accessory. The utility model discloses a gallows, the gallows upper end is provided with a plurality of hoistholes, and the gallows lower extreme is fixed to be provided with at least two sets of subassembly that lifts by crane, lifts by crane the subassembly and includes the lifting rope and lifts by crane the seat, lifts by crane the seat and is equipped with two at least and arrange along same straight line, all rotates in the seat of lifting by crane and is provided with the fixed pulley, and the fixed pulley direction of rotation all keeps unanimous, the lifting rope with fixed pulley sliding connection. The lifting rope on the lifting assembly is connected with the lifting object, and the lifting object can be automatically adjusted and balanced under the action of gravity according to the gravity center position of the lifting object due to the sliding connection of the lifting rope and the fixed pulley, so that the uniform stress among lifting points is ensured, the phenomenon that the lifting object inclines due to unbalanced stress is reduced, the lifting precision is improved, and the lifting efficiency is improved.

Description

Hoisting device

Technical Field

The utility model relates to a construction technical field especially relates to a hoisting accessory.

Background

With economic development and social progress, the speed of prefabricated assembly construction and overwater bridge construction is continuously increased, and a prefabricated concrete member is one of main construction accessories for civil engineering construction. The precast concrete member is hoisted and installed in place through hoisting equipment mostly, when carrying out the hoist and mount construction, through hanging the lifting hook and establish on the couple that the precast member reserved, the hoist chain is connected to the rethread steel cable rope and the lifting machine lifts by crane the prefab, the prefab is in slope or unbalanced state easily aloft, very be difficult to adjust the prefab state under the hoist and mount state, also be difficult to control to installation accuracy afterwards, very influence work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a hoisting accessory that can automatically regulated is balanced.

The utility model provides a technical scheme that its technical problem adopted is: the lifting device comprises a lifting frame, wherein a plurality of lifting holes are formed in the upper end of the lifting frame, a lifting assembly is fixedly arranged at the lower end of the lifting frame and comprises lifting ropes and lifting seats, the lifting seats are at least provided with two lifting ropes and arranged along the same straight line, fixed pulleys are rotationally arranged in the lifting seats, the rotating directions of the fixed pulleys are kept consistent, and the lifting ropes are connected with the fixed pulleys in a sliding manner.

Further, the method comprises the following steps: the hoisting assemblies are at least provided with two groups.

Further, the method comprises the following steps: the hanger comprises more than two bearing beams which are horizontally arranged, and the bearing beams are fixedly connected with each other.

Further, the method comprises the following steps: the gallows includes two spandrel girders, and two spandrel girders interconnect form "ten" font component, and every spandrel girder bottom all is provided with the subassembly that lifts by crane, lifts by crane the subassembly and sets up along spandrel girder length direction.

Further, the method comprises the following steps: the lifting seats are arranged at the end parts of the bearing beams, and the symmetric centers of the plurality of lifting seats correspond to the symmetric center of the lifting frame.

Further, the method comprises the following steps: a plurality of support beams are fixedly arranged between the two bearing beams.

Further, the method comprises the following steps: the bearing beams are welded and fixed, and the bearing beams and the supporting beams are welded and fixed.

Further, the method comprises the following steps: the bearing beam and the support beam are made of I-shaped steel.

Further, the method comprises the following steps: and a fixing plate is fixedly arranged at the center of the hanging bracket.

The utility model has the advantages that: the utility model discloses set up the lifting component in the below of gallows, be connected with the hoist and mount thing through the lifting rope on the lifting component, because lifting rope and fixed pulley sliding connection, the hoist and mount thing can realize automatically regulated balanced under the effect of gravity according to the focus position of self to guarantee that the atress is even between each hoisting point, reduce the hoist and mount thing because the unbalanced slope of atress appears, improve the hoist and mount precision, and improve hoist and mount efficiency.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic view of the structure of the fixed pulley and the lifting base of the present invention;

labeled as: the lifting device comprises a lifting frame 1, a lifting hole 2, a lifting seat 3, a fixed pulley 4 and a supporting beam 5.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Please refer to fig. 1 and fig. 3, the utility model discloses a hoisting device, including gallows 1, gallows 1 upper end is provided with a plurality of hoistways 2, 1 fixed at least two sets of subassemblies that lift by crane that are provided with of gallows lower extreme, the subassembly that lifts by crane includes the lifting rope and lifts by crane seat 3, it is equipped with two at least and arranges along same straight line to lift by crane seat 3, it is provided with fixed pulley 4 all to rotate in the seat 3 to lift by crane, the fixed pulley 4 rotation direction in the subassembly that lifts by crane of the same group all keeps unanimous, the lifting rope respectively with correspond 4 sliding connection of fixed pulley in the subassembly that lifts by crane, the realization can be at the slip of fixed pulley 4 more than two. The at least two groups of hoisting assemblies are arranged in parallel at intervals, in a crossed manner or in an annular surrounding manner, so that the purpose of hoisting the hoisted object can be achieved. The lifting ropes at the two ends of each group of lifting assembly and the concrete prefabricated member are fixed by means of the reserved hooks and the hooks, the lifting ropes of the lifting assembly are in sliding fit with the fixed pulleys 4 under the gravity center effect of the lifting points of the concrete prefabricated members at the two sides of the lifting ropes in the lifting process, so that the lifted concrete prefabricated members reach the most balanced state, and then the whole concrete prefabricated members reach a balanced state under the combined action of the groups of lifting assemblies. The utility model discloses in mentioned concrete prefabricated member, refer to the concrete prefabricated member of common rule, building element such as roof beam, board, concrete pile.

Specifically, in order to alleviate gallows 1's wholeness, the gallows 1's of being convenient for transportation, steel frame construction is set to gallows 1, and gallows 1 includes the spandrel girder that two or more levels set up, spandrel girder mutual fixed connection.

Preferably, as shown in fig. 1, the hanger 1 in an embodiment of the present invention includes two bearing beams, the two bearing beams are connected to form a cross-shaped member, the bottom of each bearing beam is provided with a hoisting component, and the hoisting component is arranged along the length direction of the bearing beam. The hoisting seats 3 of the hoisting assembly are arranged at the end part of the bearing beam, and the symmetric centers of the hoisting seats 3 correspond to the symmetric center of the hoisting frame 1. In this embodiment, any two lifting seats 3 form a set of lifting assemblies, and when the precast concrete member is lifted, the precast concrete member realizes balance adjustment under the action of gravity through the lifting ropes of the lifting assemblies.

Preferably, in order to improve the strength of the hanger 1, a plurality of support beams 5 are fixedly arranged between the two bearing beams, please refer to fig. 2, the plurality of support beams 5 are arranged in a square shape, the bearing beams and the support beams 5 are fixed by welding, and the bearing beams and the support beams 5 are all made of i-steel.

Specifically, in order to improve the overall rigidity and the stress strength of the hanger 1, please refer to fig. 2, a fixing plate is fixedly disposed at the center of the hanger 1.

It should be understood that the present invention is not limited to the structure shape mentioned herein, the hanger 1 may also be a steel plate structure, the number of the bearing beams is not limited to two, and the design is adaptive according to the weight and shape of the prefabricated member to be hoisted. The utility model discloses a gallows 1 in another embodiment includes three spandrels, and three spandrel girder interconnect form "rice" font component, and the lifting component is provided with three groups, and three groups of lifting components correspond the setting respectively on three spandrels.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. Hoisting accessory, its characterized in that: including gallows (1), gallows (1) upper end is provided with a plurality of hole for hoist (2), gallows (1) lower extreme is fixed to be provided with and lifts by crane the subassembly, it includes the lifting rope and lifts by crane seat (3) to lift by crane the subassembly, it is equipped with two at least and arranges along same straight line to lift by crane seat (3), it is provided with fixed pulley (4) all to rotate in seat (3) to lift by crane, fixed pulley (4) direction of rotation all keeps unanimous, the lifting rope with fixed pulley (4) sliding connection.

2. The hoisting device of claim 1, wherein: at least two groups of hoisting assemblies are arranged.

3. The hoisting device of claim 1, wherein: the hanger (1) comprises more than two bearing beams which are horizontally arranged, and the bearing beams are fixedly connected with each other.

4. The hoisting device of claim 1, wherein: the hanger (1) comprises two bearing beams, the two bearing beams are connected with each other to form a cross-shaped component, a lifting component is arranged at the bottom of each bearing beam, and the lifting components are arranged along the length direction of the bearing beams.

5. The hoisting device of claim 4, wherein: the lifting seats (3) are arranged at the end parts of the bearing beams, and the symmetric centers of the plurality of lifting seats (3) correspond to the symmetric center of the lifting frame (1).

6. The hoisting device of claim 4, wherein: a plurality of supporting beams (5) are fixedly arranged between the two bearing beams.

7. The hoisting device of claim 6, wherein: the bearing beams are welded and fixed, and the bearing beams and the supporting beams (5) are welded and fixed.

8. The hoisting device of claim 4, wherein: the bearing beam and the supporting beam (5) are both I-shaped steel.

9. The hoisting device of claim 1, wherein: the center of the hanger (1) is fixedly provided with a fixing plate.

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