CN2470330Y

CN2470330Y - Bridge-type lifter

Info

Publication number: CN2470330Y
Application number: CN 01210844
Authority: CN
Inventors: 沈瑜
Original assignee: Yichang Sheet Co ltd Shanghai
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2001-02-28
Filing date: 2001-02-28
Publication date: 2002-01-09
Anticipated expiration: 2011-02-28

Abstract

The utility model discloses a bridge crane, which comprises rigidly connected an upright column, a mobile bridge frame composed of a cantilever beam and a base, as well as serially mechanically connected a hoisting trolley and a cart. The hoisting trolley is composed of a winching machine, a hoisting rope sheave and a hoisting tool; the arrangement direction of the cantilever beam is consistent with and parallel to the moving rail direction of the cart, so that the running direction of the hoisting trolley is consistent with that of the cart, the front end of the cantilever beam extends out of the front end part of the base and the hoisting trolley can smoothly stride the operation line for hoisting operation; the rope sheave is lifted to be directly embedded in a knock-out pin of the steel coil hoisting tool to reduce the height of the crane. The utility model has the advantages of simple and compact structure, small occupied area and operational area.

Description

A kind of crane in bridge type

The utility model relates to a kind of crane in bridge type.

In the sheet-steel rolling mill on the operating line of degreasing unit coil of strip cross stride general employing send volume dolly and rotation coil of strip frame in conjunction with or sloping platform tumble, but because sloping platform is arranged on the platform of 1.5 meters absolute altitudes, and rotation coil of strip frame floor area is too big, must carry out bigger change to original volume dolly, uncoiling grooved roller etc. of sending, could adapt to this and cross the scheme of striding, time-consuming investment is big; The so-called sloping platform method that freely tumbles promptly adopts on sloping platform one by one station to establish the turnable baffle plate, control by baffle plate makes the coil of strip by gravity freely tumble along sloping platform, owing to be freely to tumble, when big or volume is heavier when the roll bending thickness of coil of strip, coil of strip often rolls on sloping platform to sloping platform one side, need just manually draw, and even more serious is to produce volume core gross distortion, cause the volume core to become ellipse, even also can become the heart-shaped of depression to one section circular arc by circle; And tumble and impact very big baffle plate, especially uncoiling grooved roller mechanism is impacted maximum, often cause the damage of grooved roller mechanism, proportion reaches 40% in the downtime of unit, directly influence the operating rate of unit, the work capacity and the expense that also cause simultaneously keeping in repair also remain high.Use gantry crane span structure to carry, characteristics such as because that existing gantry portal structure mostly is service direction and the cart service direction of lifting trolley greatly is perpendicular, take up an area of, working area is big, can't adapt to operating line and arrange compactness, and the operation place is little.

The purpose of this utility model is to provide a kind of simple and compact for structure, occupation of land and little, the easy to operate crane in bridge type of working area.

The purpose of this utility model is achieved in that crane in bridge type, comprises main by the mobile crane span structure of forming with column, cantilever beam and the base of rigid connection, at the lifting trolley that moves on the cantilever beam and cart that is provided with under mobile crane span structure base and corresponding orbit; Mass is set with firm mobile crane span structure in the column steel structure casing; Lifting trolley comprises successively and with winch, lifting rope sheave and the suspender of mechanical connection the orbit of lifting trolley to be set on cantilever beam, and it is consistent with the orbit direction of cart and both are parallel that this cantilever beam is provided with direction; The cantilever beam front end stretches out mobile crane span structure lower bottom base leading section, cantilever beam rearward end vertical projecting line is positioned at the inboard of base rear end portion, guarantee to work as the large vehicle walking of mobile crane span structure bottom to end position, an end cantilever beam of choosing column is positioned at the top of operating line, make the lifting trolley can be along cantilever beam with the top of coil of strip handling to operating line, the orbit of lifting trolley be consistent with the orbit direction of cart and parallel.

Lifting rope sheave in the lifting trolley embeds and is fixed in the coil grab push rod.

Good effect of the present utility model: since in the utility model the cantilever beam on the mobile crane span structure that the service direction of direction cart bottom mobile crane span structure is set is consistent and both are parallel, cantilever beam one end is chosen column, the orbit of lifting trolley is set on cantilever beam, make the lifting trolley service direction consistent with the cart service direction of the traveling mechanism of the larger traveller of mobile crane span structure bottom and both are parallel, arrange compact at operating line, under the less working condition in operation place, lifting trolley still can successfully be striden the operating line lifting job, and the lifting rope sheave directly embeds the coil grab push rod, so just reduce the length of lifting rope sheave and coil grab, reduced the height of mobile crane span structure simultaneously.Have advantages such as simple and compact for structure, easy to operate.

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is a front elevation of the present utility model;

Fig. 2 is that K of the present utility model is to view;

As shown in Figure 1, 2, crane in bridge type comprises mainly by the lifting trolley 1 of the mobile crane span structure of forming with column 32, cantilever beam 31 and the base 33 of rigid connection 3, operation on cantilever beam 31, at the cart 5 and the corresponding orbit 4 of 33 times settings of mobile crane span structure 3 bases; Lifting trolley 1 comprises successively winch 11, lifting rope sheave 12 and the suspender 13 with mechanical connection, the orbit 2 of lifting trolley 1 is set on cantilever beam 31, it is consistent with orbit 4 directions of cart 5 and both are parallel that cantilever beam 31 is provided with direction, thereby make the orbit 2 of lifting trolley 1 consistent with orbit 4 directions of cart 5 and parallel.Front end stretches out mobile crane span structure 3 lower bottom bases 33 leading sections, cantilever beam 31 rearward end vertical projecting lines are positioned at the inboard of base 33 rearward end, guarantee to run to end position when the cart 5 of mobile crane span structure 3 bottoms, cantilever beam 31 1 ends that stretch out mobile crane span structure 3 lower bottom bases 33 leading sections are positioned at the top of operating line 7, make the lifting trolley 1 can be along cantilever beam 3 with the top of coil of strip 6 handlings to operating line 7, cancelled the suspension hook below the common lifting rope sheave 12 in the lifting trolley 1, lifting rope sheave 12 directly embeds coil grab 13 push rods, connect with bolt, so just reduce the length of lifting rope sheave 12 and coil grab 13, reduced the height of mobile crane span structure 1 simultaneously.

Big or roll up heavy coil of strip 6 and will stride operating line when carrying when roll bending thickness, by the crane in bridge type handling, lifting trolley 1 along cantilever beam 31 with coil of strip handling from the platform, cart 5 walkings of crane in bridge type simultaneously, until lifting trolley 1 with coil of strip 6 handlings to operating line 7 uncoiling grooved roller places, so that carry out the operation of subsequent processing.

Claims

1. a crane in bridge type comprises main by the mobile crane span structure of forming with column (32), cantilever beam (31) and the base (33) of rigid connection (3), at lifting trolley (1) that cantilever beam (31) upward moves and cart (5) and the corresponding orbit (4) that is provided with under mobile crane span structure (3) base (33); Lifting trolley (1) comprises successively winch (11), lifting rope sheave (12) and the suspender (13) with mechanical connection, the orbit (2) of lifting trolley (1) is set on cantilever beam (31), it is characterized in that: it is consistent with orbit (4) direction of cart (5) and both are parallel that this cantilever beam (31) is provided with direction; Cantilever beam (31) front end stretches out mobile crane span structure (3) lower bottom base (33) leading section, cantilever beam (31) rearward end vertical projecting line is positioned at the inboard of base (33) rearward end, and the orbit (2) of lifting trolley (1) is consistent with orbit (4) direction of cart (5) and parallel.

2. crane in bridge type as claimed in claim 1 is characterized in that: the lifting rope sheave (12) in the said lifting trolley (1) embeds and is fixed in coil grab (13) push rod.