CN110127527B - Bridge crane hoisting method in limited space - Google Patents

Abstract

The invention provides a bridge crane hoisting method in a limited space, which comprises the following steps: s1) dividing the limited space into two parts, and arranging a top anchor on the central axis at the top of the limited space; s2) constructing a first section of bridge crane foundation and a first section of track; s3) placing the crane at the spatial position of the second section of bridge crane foundation, hoisting the main beam, the end beam and other components of the bridge crane, and installing a crane moving mechanism; s4) moving out the crane, constructing the second section of bridge crane foundation and track, and installing the trolley and the bridge frame by using the winch in cooperation with the top anchor. The invention has the advantages that: the problem that the hoisting working space is limited is solved, the operation efficiency and the safety are not reduced, and the method has important reference significance for the hoisting engineering project of the bridge crane in the limited space.

Description

Bridge crane hoisting method in limited space

Technical Field

The invention relates to the technical field of hoisting equipment installation, in particular to a hoisting method of a bridge crane in a limited space.

Background

The bridge crane is a bridge crane, also called crown block, which runs on an elevated track by utilizing a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the wall foundations at two sides, and the crane trolley runs transversely along the rails laid on the bridge frame to form a rectangular working range, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The bridge crane is widely applied to indoor and outdoor warehouses, factories, wharfs, open storage yards and the like.

The large bridge crane has high requirements on working space during hoisting, the ground space is required to be capable of expanding the large bridge crane, and the clear height is also required to be capable of meeting the requirement of extending the suspension arm. If the space size can not meet the requirements, a bridge crane hoisting method with limited space is needed.

Disclosure of Invention

The invention aims to provide a bridge crane hoisting method which is applied to a limited space and ensures the hoisting operation efficiency and safety.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a bridge crane hoisting method for a limited space comprises the following steps:

s1) dividing the limited space into two parts, wherein the bridge crane foundation in the limited space comprises a first section of bridge crane foundation and a second section of bridge crane foundation, and an overhead anchor is arranged on a central axis at the top of the limited space;

s2) constructing a first section of bridge crane foundation, and installing a bridge crane track on the first section of bridge crane foundation, wherein the track length is greater than the bridge crane end beam length by 1 m;

s3) placing the crane in the space position of the second section of bridge crane foundation, hoisting the end beam, the main beam and other components of the bridge crane to the first section of bridge crane foundation in sequence through the crane, assembling a bridge frame, and then installing a cart moving mechanism;

s4) moving the crane out of the field, constructing a second section of bridge crane foundation, installing a bridge crane track on the second section of bridge crane foundation, lifting the trolley to a height above the bridge by using a winch matched with a top anchor, then walking the bridge below the trolley and enabling a trolley installation station to be located right below the trolley, and installing the trolley on the bridge.

Further, the bridge crane foundation comprises side walls and brackets.

Compared with the prior art, the invention has the following advantages:

according to the bridge crane hoisting method in the limited space, the problems of overlarge occupied space of the foundation and insufficient working space of a crane are solved by constructing the bridge crane foundation in two sections; the winch is matched with the sky anchor to replace a crane to mount the trolley, so that the problems that the top space is limited and the height cannot meet the requirement that the crane boom hoists the trolley to the bridge frame are solved. The bridge crane hoisting method in the limited space solves the problem of limited hoisting working space, does not reduce the operation efficiency and safety, and has important reference significance for bridge crane hoisting engineering projects in the limited space.

Drawings

Fig. 1 is a schematic diagram of the installation of the foundation, the track and the bridge frame of the first section of the bridge crane in the hoisting method of the bridge crane with limited space.

Fig. 2 is an installation schematic diagram of a second section of bridge crane foundation of the bridge crane hoisting method of the invention with limited space.

Fig. 3 is a schematic diagram of the installation of the trolley hoisting in the hoisting method of the bridge crane in a limited space.

Detailed Description

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

A bridge crane hoisting method for a limited space comprises the following steps:

s1) dividing the limited space into two parts, wherein the bridge crane foundation in the limited space comprises a first section of bridge crane foundation 2 and a second section of bridge crane foundation 3, the bridge crane foundation comprises a side wall and a bracket, and a top anchor 5 is arranged on a central axis at the top of the limited space;

s2) constructing a first section of bridge crane foundation 2 as shown in figure 1, wherein the length of the first section of bridge crane foundation 2 is required to meet the installation requirement of a first section of track, the bridge crane track is installed on the first section of bridge crane foundation 2, and the track length is at least 1m greater than the length of the bridge crane end beam 102;

s3) as shown in the figure 1, a crane 4 enters the field, and the model of the crane needs to meet the hoisting requirements of the end beam 102 and the main beam 101 of the bridge crane; because the second section of bridge crane foundation 3 is not constructed yet and has sufficient space, the crane is arranged at the space position of the second section of bridge crane foundation 3, the end beam 102 of the bridge crane is firstly hoisted by the crane 4, then the main beam 101 is hoisted to assemble the bridge 1 of the bridge crane, and then the crane moving mechanism is hoisted to enable the bridge 1 to travel on the track;

s4) as shown in the figure 2, the crane 4 retreats, a second section of the bridge crane foundation 3 is constructed, and a bridge crane track is installed on the second section of the bridge crane foundation 3; as shown in fig. 3, a load test is performed on the sky anchor 5 at the top of the limited space, the load of the sky anchor 5 needs to meet the requirement of hoisting the trolley 6 of the bridge crane, after the load test is passed, the winch is used for being matched with the sky anchor 5 to lift the trolley 6 to a position above the elevation of the bridge frame 1, then the bridge frame 1 is controlled to walk to the position below the trolley 6, the trolley mounting station is located under the trolley 6, the trolley 6 is slowly placed on the mounting station of the bridge frame 1 by the winch, and then accessories of the trolley 6 are mounted.

The bridge crane hoisting method in the limited space can greatly reduce the space requirement of the bridge crane hoisting, and can not reduce the installation efficiency and safety.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the spirit of the present invention, and these modifications and improvements should also be considered as within the scope of the present invention.

Claims (2)

1. A bridge crane hoisting method in a limited space is characterized by comprising the following steps:

s1) dividing the limited space into two parts, wherein the bridge crane foundation in the limited space comprises a first section of bridge crane foundation and a second section of bridge crane foundation, and an overhead anchor is arranged on a central axis at the top of the limited space;

s2) constructing a first section of bridge crane foundation, and installing a bridge crane track on the first section of bridge crane foundation, wherein the track length is greater than the bridge crane end beam length by 1 m;

s3) the crane enters the field, the crane is arranged at the spatial position of the second section of bridge crane foundation, the end beam and the main beam part of the bridge crane are sequentially hoisted to the first section of bridge crane foundation through the crane to assemble a bridge frame, and then a cart moving mechanism is installed;

s4) moving the crane out of the field, constructing a second section of bridge crane foundation, installing a bridge crane track on the second section of bridge crane foundation, lifting the trolley to a height above the bridge by using a winch matched with a top anchor, then walking the bridge below the trolley and enabling a trolley installation station to be located right below the trolley, and installing the trolley on the bridge.

2. The hoisting method of the bridge crane in the limited space of claim 1, wherein the hoisting method comprises the following steps: the bridge crane foundation comprises side walls and brackets.

Images