Lifting appliance suitable for lifting different sections of prefabricated pier column

Abstract

The utility model provides a lifting appliance suitable for lifting different sections of a prefabricated pier column, a carrying pole beam comprises a left longitudinal beam, a right longitudinal beam and two cross beams connected between the two longitudinal beams, and the two cross beams are respectively provided with two transverse kidney-shaped holes which are through up and down; the four first hanging rods penetrate through the four transverse kidney-shaped holes correspondingly, and the positions of the four first hanging rods on the transverse kidney-shaped holes are transversely adjustable. The lower adjusting beams are installed at the tail ends of the first hanging rods, and the two lower adjusting beams are each provided with two longitudinal kidney-shaped holes which are through up and down. The four second hanging rods penetrate through the four longitudinal kidney-shaped holes correspondingly, and the positions of the four second hanging rods on the longitudinal kidney-shaped holes are longitudinally adjustable. According to the lifting appliance suitable for lifting the different sections of the prefabricated pier column, the position of the lifting rod in the lifting appliance can be changed along with the change of the lifting holes in the different sections, the lifting operation of the different sections of the prefabricated pier column can be realized on the basis of one set of lifting appliance, one set of lifting appliance has multiple purposes, the cost is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model provides a hoisting device suitable for hoisting different sections of a prefabricated pier column, belonging to the technical field of bridge hoisting equipment. Background Art

[0002] At present, my country's high-speed railway is developing rapidly, among which the construction of large-span bridges is the future development trend. At present, the span of more and more high-speed railway lines has changed from the original 32m to 40m, and new high-speed railway construction equipment is needed to meet the use needs. Among them, the on-site transportation and construction of prefabricated box beams is an important part of the high-speed railway construction. The use of tire-type beam movers has become the main means in this construction process.

[0003] In addition to prefabricated box girders, bridge piers can also be prefabricated. Fully prefabricated bridge structures have the advantages of accelerating construction speed, reducing on-site pollution, and achieving low-carbon construction. With the further development of bridge construction, the modern industrialization technology of bridges has gradually matured. Among them, the hoisting of prefabricated bridge piers is one of the important links in the construction of prefabricated bridges, but the hoisting point positions of piers with different cross-sections are different, and steel wire ropes of different lengths and specifications need to be selected for hoisting. The existing hangers for hoisting bridge piers have fixed spacing of hangers, and the position of the hoisting point cannot be adjusted, which is not suitable for the hoisting of prefabricated bridge piers with different cross-sections. Chinese utility model patent CN 215101458 U provides a prefabricated bridge pier hoisting auxiliary device, which is provided with a sliding groove that runs through the upper and lower parts on the hanging beam, and a hoisting rod that slides with it is provided on the sliding groove, so that the spacing of the hoisting rods can be adjusted according to the different positions of the hoisting points of the prefabricated bridge piers, which is suitable for the hoisting of prefabricated bridge piers with more different cross-sections. However, the above patent is specifically used for the case where a lifting lug is provided on the prefabricated pier column, and the lifting is performed after the hook is connected to the lifting lug; it is not suitable for lifting in the case where no lifting lug is provided on the prefabricated pier column segment. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a hoist suitable for hoisting different sections of a prefabricated pier column. The position of the hoist rod in the hoist can change along with the change of the hoisting holes on the different sections. The hoisting operation of different sections of the prefabricated pier column can be realized based on a set of hoisting tools, and one set can be used for multiple purposes, thereby reducing costs and improving construction efficiency.

[0005] The technical solution adopted to achieve the above-mentioned purpose of the utility model is:

[0006] A sling suitable for slinging different sections of a prefabricated pier column, comprising at least a shoulder beam, the sling comprising:

[0007] The shoulder pole beam comprises two left and right longitudinal beams and two cross beams connected between the two longitudinal beams. The two cross beams are welded and fixed to the two longitudinal beams. The ends of the two longitudinal beams are provided with lifting ears, which are connected to the movable pulley block of the lifting trolley through a pin shaft, and the two movable pulley blocks on a single lifting trolley are connected to the two lifting ears of the same longitudinal beam; the two cross beams are provided with two horizontal waist holes that penetrate up and down, and the positions of the four horizontal waist holes correspond to each other;

[0008] Four first suspension rods are provided, and the four first suspension rods pass through four transverse waist holes respectively, and the top ends of the first suspension rods are installed above the transverse waist holes through nuts, and the positions of the first suspension rods on the transverse waist holes are transversely adjustable;

[0009] There are two lower adjustment beams, which are arranged longitudinally. Both ends of the lower adjustment beams are provided with lifting holes. The first suspension rod passes through the lifting hole, and the bottom end of the first suspension rod is installed below the lifting hole through a nut. Each lower adjustment beam is connected to two first suspension rods. Two longitudinal waist holes that penetrate up and down are provided on the two lower adjustment beams, and the positions of the four longitudinal waist holes correspond to each other.

[0010] Four second hangers are provided, and the four second hangers pass through four longitudinal waist holes respectively, and the top ends of the second hangers are installed above the longitudinal waist holes through nuts, and the positions of the second hangers on the longitudinal waist holes are longitudinally adjustable; the bottom ends of the second hangers are connected to the prefabricated pier column segments.

[0011] Furthermore, the two cross beams in the shoulder pole beam are connected between the ends of the two longitudinal beams, and the shoulder pole beam as a whole is a rectangular frame structure.

[0012] Furthermore, the four first suspension rods have the same length, and the top ends of the four first suspension rods are distributed in a rectangular shape in a horizontal plane.

[0013] Furthermore, the four second suspension rods have the same length, and the top ends of the four second suspension rods are distributed in a rectangular shape in a horizontal plane.

[0014] Compared with the prior art, the slings provided by the utility model and suitable for hoisting different sections of prefabricated pier columns have the following advantages: 1. The slings provided by the utility model and suitable for hoisting different sections of prefabricated pier columns, the position of the sling rod in the slings can change with the change of the hoisting holes on the different sections, and the hoisting operation of different sections of prefabricated pier columns can be realized based on a set of slings, one set can be used for multiple purposes, the cost is reduced and the construction efficiency is improved. 2. The slings provided by the utility model and suitable for hoisting different sections of prefabricated pier columns, the sling rods can be directly connected to the reserved holes (prestressed holes) on the prefabricated pier column sections, and the sections can be hoisted without the need to install additional lifting ears on the sections, so the construction process is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the lifting device suitable for lifting different sections of prefabricated piers in the utility model;

[0016] Figure 2 for Figure 1 Side view of

[0017] Figure 3 for Figure 1 A top view of

[0018] Figure 4 It is a schematic diagram of the use state of the lifting device suitable for lifting different sections of the prefabricated pier column in the utility model;

[0019] Figure 5 for Figure 4 Side view of

[0020] In the figure: 1-beam moving machine, 2-lifting crane, 5-lifting eye, 6-prefabricated pier, 201-shoulder beam, 202-transverse waist hole, 203-first suspension rod, 204-lower adjusting beam, 205-longitudinal waist hole, 206-second suspension rod. DETAILED DESCRIPTION

[0021] The present invention is described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following embodiments.

[0022] The utility model provides a lifting device suitable for lifting different sections of prefabricated piers, and its structure is as follows Figure 1-Figure 5 As shown, the shoulder pole beam 201 in the sling includes two left and right longitudinal beams and two cross beams connected between the two longitudinal beams, and the two cross beams are welded and fixed to the two longitudinal beams; the two cross beams in the shoulder pole beam are connected between the ends of the two longitudinal beams, and the shoulder pole beam as a whole is a rectangular frame structure. The ends of the two longitudinal beams are provided with lifting ears 5, which are connected to the movable pulley block of the lifting trolley 2 on the top of the beam moving machine 1 through a pin shaft, and the two movable pulley blocks on a single lifting trolley 2 are connected to the two lifting ears 5 of the same longitudinal beam; the two cross beams are provided with two horizontal waist holes 202 that penetrate up and down, and the positions of the four horizontal waist holes 202 correspond to each other.

[0023] Four first suspension rods 203 are provided, and the four first suspension rods pass through four transverse waist holes 202 respectively, and the top ends of the first suspension rods 203 are installed above the transverse waist holes 202 through nuts, and the positions of the first suspension rods 203 on the transverse waist holes 202 are laterally adjustable; the four first suspension rods have the same length, and the top ends of the four first suspension rods are distributed in a rectangular shape in the horizontal plane.

[0024] There are two lower adjusting beams 204 in total. The lower adjusting beams 204 are arranged longitudinally. Lifting holes are respectively arranged at both ends of the lower adjusting beams. The first hanging rod passes through the lifting hole, and the bottom end of the first hanging rod is installed below the lifting hole through a nut. Each lower adjusting beam is connected to two first hanging rods; two lower adjusting beams are each provided with two longitudinal waist holes 205 that pass through from top to bottom, and the positions of the four longitudinal waist holes 205 correspond to each other.

[0025] Four second suspension rods 206 are provided, and the four second suspension rods 206 pass through the four longitudinal waist holes 205 respectively, and the top ends of the second suspension rods 206 are installed above the longitudinal waist holes 205 through nuts, and the positions of the second suspension rods on the longitudinal waist holes are longitudinally adjustable; the bottom ends of the second suspension rods are connected to the prefabricated pier column segments. The four second suspension rods have the same length, and the top ends of the four second suspension rods are distributed in a rectangular shape in the horizontal plane.

[0026] The working process of the lifting device provided by the utility model which is suitable for lifting different sections of prefabricated pier columns is as follows:

[0027] (1) Move the two cranes in the beam moving machine inward so that the distance between them matches the width of the pole beam, then lower the movable pulley block to the ground and connect the movable pulley block to the lifting lug of the pole beam through the pin shaft;

[0028] (2) lifting the shoulder pole beam to a certain height to make it off the ground, then passing the head ends of the four first suspension rods through the four transverse waist holes on the shoulder pole beam, and then connecting them with nuts and washers, and then installing the two lower adjustment beams at the tail ends of the four first suspension rods respectively;

[0029] (3) The crane continues to lift the lower adjustment beam to a certain height to make it off the ground, and then passes the head ends of the four second suspension rods through the four longitudinal waist holes on the lower adjustment beam, and then connects them with nuts and washers;

[0030] (4) According to the positions of the four lifting holes on the segment to be transported, adjust the lateral and longitudinal positions of the first suspension rod and the second suspension rod on the sling so that the positions of the four second suspension rods correspond to the positions of the four lifting holes; the crane continues to lift so that the tail height of the second suspension rod exceeds the top height of the segment;

[0031] (5) The beam moving machine is moved as a whole to the segment to be moved, and then the position is adjusted so that the four second suspension rods are located directly above the lifting holes on the segment. The crane then lowers the sling so that the tail of the second suspension rod is deeply inserted into the lifting hole.

[0032] (6) The staff enters the interior of the segment and installs the gasket and nut at the tail end of the second boom;

[0033] (7) The crane in the beam moving machine is lifted to lift the segment of the prefabricated pier column, so that the segment is off the ground, and then the segment is moved by the synchronous movement of the crane to complete the operation of a single segment beam;

[0034] (8) After the segment is transported, remove the nut at the tail end of the second suspension rod, and then lift the crane to completely pull the second suspension rod out of the segment. Then repeat steps (4) to (7) to carry out the transport operation of the next prefabricated pier segment.

[0035] (9) After all the prefabricated pier column segments have been transported, the second suspension rod, the lower adjustment beam, the first suspension rod and the shoulder beam can be removed in sequence according to the reverse steps (1) to (3).

Claims

1. A lifting device suitable for lifting different sections of prefabricated piers, comprising at least a shoulder beam, characterized in that: The sling comprises: The shoulder pole beam comprises two left and right longitudinal beams and two cross beams connected between the two longitudinal beams. The two cross beams are welded and fixed to the two longitudinal beams. The ends of the two longitudinal beams are provided with lifting ears, which are connected to the movable pulley block of the lifting trolley through a pin shaft, and the two movable pulley blocks on a single lifting trolley are connected to the two lifting ears of the same longitudinal beam; the two cross beams are provided with two horizontal waist holes that penetrate up and down, and the positions of the four horizontal waist holes correspond to each other; Four first suspension rods are provided, and the four first suspension rods pass through four transverse waist holes respectively, and the top ends of the first suspension rods are installed above the transverse waist holes through nuts, and the positions of the first suspension rods on the transverse waist holes are transversely adjustable; There are two lower adjustment beams, which are arranged longitudinally. Both ends of the lower adjustment beams are provided with lifting holes. The first suspension rod passes through the lifting hole, and the bottom end of the first suspension rod is installed below the lifting hole through a nut. Each lower adjustment beam is connected to two first suspension rods. Two longitudinal waist holes that penetrate up and down are provided on the two lower adjustment beams, and the positions of the four longitudinal waist holes correspond to each other. Four second hangers are provided, and the four second hangers pass through four longitudinal waist holes respectively, and the top ends of the second hangers are installed above the longitudinal waist holes through nuts, and the positions of the second hangers on the longitudinal waist holes are longitudinally adjustable; the bottom ends of the second hangers are connected to the prefabricated pier column segments.

2. The lifting device suitable for lifting different sections of prefabricated piers according to claim 1 is characterized in that: The two cross beams in the shoulder-pole beam are connected between the ends of the two longitudinal beams, and the shoulder-pole beam as a whole is a rectangular frame structure.

3. The lifting device suitable for lifting different sections of prefabricated piers according to claim 1 is characterized in that: The four first suspension rods have the same length, and the top ends of the four first suspension rods are distributed in a rectangular shape in a horizontal plane.

4. The lifting device suitable for lifting different sections of prefabricated piers according to claim 1 is characterized in that: The four second suspension rods have the same length, and the top ends of the four second suspension rods are distributed in a rectangular shape in a horizontal plane.

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