CN101434366A

CN101434366A - Hoisting tool and hoisting method for column component

Info

Publication number: CN101434366A
Application number: CNA2008102338040A
Authority: CN
Inventors: 张彦一; 温泉; 纳峰; 陈华; 倪国林; 杨扬; 马秉云
Original assignee: 宁夏电力建设工程公司
Priority date: 2008-12-12
Filing date: 2008-12-12
Publication date: 2009-05-20
Also published as: CN101434366B

Abstract

The invention relates to a lifting construction method of a large component, in particular to a lifting rig and a lifting method of a large upright column component, wherein, the lifting rig is provided with fixed pulleys respectively installed at the two ends of a lifting crossbeam, two ropes respectively roll around the fixed pulleys, and two ends of each rope are respectively provided with a pulley; the method is as follows: a main hook is connected with the lifting rig of the upright column component, and connected with the upright column component through the two fixed pulleys and four ropes rolling around the four pulleys and used for lifting on the lifting rig of the upright column component, an assisted hook is connected with an assisted suspension cable fixed at the bottom of the upright column component, and during the synchronous lifting course of the main hook and the assisted hook, the upright column component automatically turns over to be vertical to the ground from a horizontal position. The technical proposal is particularly suitable for the lifting of the large component and has the characteristics of fast construction speed and less safety risk.

Description

The hoisting machine tool of column component and hanging method

Technical field

The present invention relates to the hoisting machine tool and the hanging method of a kind of construction method for hanging of large-scale component, particularly large-scale column component.

Background technology

Distribution equipment outside industrial premises of being made up of large-sized structural parts or the room in the substation project, its member are after the assembling of ground, carry out integral hoisting, in hoisting process, the lifting of column need be lifted by crane by level, aloft revolves to turn 90 degrees, after becoming plumbness, link to each other with upright post basic.At present for the lifting of the large-scale column six suspension centre integral lifting that adopt more, only four main suspension centres are set at the column single face, lift by crane by main crane, two secondary suspension centres are sling column by secondary crane is auxiliary, after lifting by crane certain position, the rope of secondary suspension centre to be removed, column is aloft by manually it being overturn, this just causes: 1 column framework can't be in plumbness fully, is unfavorable for the in place installation of column framework in basic rim of a cup; 2, for steel structure member, the column rod member is easy to generate distortion; When 3, manually reversing, both time-consuming, dangerous again.If the employing segmental hoisting, speed of application is slow, needs the workmen to carry out construction and installation in the junction of high-altitude member, and security risk is big.

Summary of the invention

The objective of the invention is to overcome the defective of prior art, provide a kind of in hoisting process, the hoisting machine tool and the hanging method of the column component that can be overturn automatically by lifting components.

For achieving the above object, technical scheme of the present invention is: a kind of column component hoisting machine tool, it is characterized in that being separately installed with fixed pulley at the two ends of lifting crossbeam, and two root ropes are walked around fixed pulley respectively, are separately installed with pulley at the two ends of every rope.

The length of above-mentioned lifting crossbeam is greater than by the width of hoisting upright column member.

Be fixed with the hoist cable that is used to hang suspension hook on the above-mentioned lifting crossbeam.

A kind of hanging method that utilizes column component hoisting machine tool hoisting upright column member, it is characterized in that this method is that main suspension hook is linked to each other with the column component hoisting machine tool, link to each other with column component with rope with four liftings walking around four pulleys by two fixed pulleys on the column component hoisting machine tool, auxiliary suspension hook links to each other with the assisted suspension cable that is fixed on the column component bottom, in main suspension hook and auxiliary suspension hook lifting process simultaneously, column component automatically by with ground-surface level attitude, be turned into and ground-surface upright position.

Above-mentioned four liftings walking around four pulleys are fixed on the column component with 8 fag ends of rope, and be distributed in around the center of gravity of column component, the parallel axes of every lifting and column component basic with the line of the attachment point of 2 fag ends of rope, the face that the line of the attachment point of 4 fag ends of four lifting usefulness rope one ends forms, be positioned at a side of column component center of gravity, and this face is perpendicular to the axis of column component, the face that the line of the attachment point of 4 fag ends of four lifting usefulness rope other ends forms, be positioned at the opposite side of column component center of gravity, and this face is perpendicular to the axis of column component, and the face that the line of the attachment point of 4 fag ends of wherein close column component bottom forms and the distance of column component center of gravity are less than the face of the line formation of the attachment point of 4 fag ends at close column component top and the distance of column component center of gravity.

Because the present invention adopts the two-shipper of main crane, whipline to lift and 8 suspension centre lifting methods, utilize the reasonable installing position of hoisting machine tool and lifting rope, can realize being turned into position perpendicular to the ground aloft automatically by the hoisting upright column member.

The characteristics of hoisting machine tool of the present invention are: utilize the lifting crossbeam, be installed in two fixed pulleys at lifting crossbeam two ends, walk around two ropes of fixed pulley respectively and be installed in four formed assembly pulleys of pulley of two rope ends, walk around the end points of four lifting ropes on four pulleys, be fixed on the column component, the center of gravity of column component is departed from the fixed position, column component is in the lifting process like this, because the skew of center of gravity, column component will rotate automatically, four lifting ropes will move up and down along four pulleys when rotated, thereby realize column component upset automatically in the lifting crossbeam.

Technical scheme of the present invention is specially adapted to the lifting of large-scale component, and it is fast to have a speed of application, the characteristics that security risk is little.

Figure of description

Accompanying drawing 1 be hoisting machine tool of the present invention with by the connection diagram of hoisting upright column member;

Accompanying drawing 2 is the connection diagram when being rotated to the upright position by the hoisting upright column member of the present invention.

The specific embodiment

As shown in Figure 1, be separately installed with 3, two ropes 4 of fixed pulley at the two ends of lifting crossbeam 2 and walk around fixed pulley respectively, be separately installed with pulley 5 at the two ends of every rope.In order to guarantee column component 7 in hoisting process, can be turned into position perpendicular to the ground smoothly, the length of lifting crossbeam 2 is greater than by the width of hoisting upright column member.

The main suspension hook of main crane 1 be fixed on the hoist cable that lifting being used on the crossbeam 2 hang suspension hook and link to each other, the auxiliary lifting rope 8 that is installed in bottom the column component links to each other with the suspension hook of whipline.4 liftings are walked around after 4 pulleys respectively with rope 6, its 8 fag ends are separately fixed on the column component 7, and be distributed in around the center of gravity of column component, wherein first lifting is with the attachment point b of 2 fag ends of rope, f is fixed on the top on column component right side, second lifting attachment point a of 2 fag ends of rope, e is fixed on the bottom on column component right side, the 3rd lifting attachment point c of 2 fag ends of rope, g is fixed on the top in column component left side, the 4th lifting attachment point d of 2 fag ends of rope, h is fixed on the bottom in column component left side, near 4 attachment point e of column component bottom, f, g, the line of h formed perpendicular to the column component axis the plane and the distance of column component center of gravity less than 4 attachment point a near the column component top, b, c, the line of d is formed perpendicular to the plane of column component axis and the distance of column component center of gravity.

When lifting, main crane and whipline lift by crane simultaneously, after column component breaks away from ground, main crane continues to rise, whipline stops to rise or to transferring, keep column component bottom and ground certain distance, the joint face that prevents the bottom is destroyed, at this moment owing to the center of gravity of 4 liftings with the misalignment column component of 8 attachment points of rope, just the center of gravity of column component is with respect to the bottom of the close column component of 8 attachment points, like this in the process of main crane lifting, column makes up that will to form the bottom automatically low, the upset trend that the top is high, and at this moment four pulleys are with the rotation of column component, its upper-lower position is also changing, and 4 liftings walking around four pulleys also move up and down along pulley with rope.As shown in Figure 2, when member was turned into position perpendicular to the ground, column made up and just is in lifting crossbeam 2 and fixed pulley 3 formed " door " the shape frame.At this moment, remove the suspension hook of whipline, make column component bottom slowly fall desired location on the basis after, fixing getting final product.

Claims

1, a kind of column component hoisting machine tool is characterized in that being separately installed with fixed pulley (3) at the two ends of lifting crossbeam (2), and two ropes (4) are walked around fixed pulley (3) respectively, are separately installed with pulley (5) at the two ends of every rope (4).

2, column component hoisting machine tool according to claim 1, the length that it is characterized in that above-mentioned lifting crossbeam (2) is greater than by the width of hoisting upright column member.

3, column component hoisting machine tool according to claim 2 is characterized in that being fixed with the hoist cable that is used to hang suspension hook on the above-mentioned lifting crossbeam (2).

4, a kind of hanging method that utilizes column component hoisting machine tool hoisting upright column member, it is characterized in that this method is that main suspension hook is linked to each other with the column component hoisting machine tool, link to each other with column component (7) with rope (6) with four liftings walking around four pulleys (5) by two fixed pulleys (3) on the column component hoisting machine tool, auxiliary suspension hook links to each other with the assisted suspension cable (8) that is fixed on column component (7) bottom, in main suspension hook and auxiliary suspension hook lifting process simultaneously, column component automatically by with ground-surface level attitude, be turned into and ground-surface upright position.

5, the hanging method that utilizes column component hoisting machine tool hoisting upright column member according to claim 4, it is characterized in that above-mentioned four liftings walking around four pulleys (5) are separately fixed on the column component (7) with 8 fag ends of rope (6), and be distributed in around the center of gravity of column component, the parallel axes of every lifting and column component basic with the line of the attachment point of 2 fag ends of rope (6), the face that the line of the attachment point of 4 fag ends of four lifting usefulness rope (6) one ends forms, be positioned at a side of column component center of gravity, and this face is perpendicular to the axis of column component, the face that the line of the attachment point of 4 fag ends of four lifting usefulness rope (6) other ends forms, be positioned at the opposite side of column component center of gravity, and this face is perpendicular to the axis of column component, and the face that the line of the attachment point of 4 fag ends of wherein close column component (7) bottom forms and the distance of column component center of gravity are less than the face of the line formation of the attachment point of 4 fag ends at close column component (7) top and the distance of column component center of gravity.