CN203255902U

CN203255902U - Multi-pulley-block four-winch linkage derrick lifting platform

Info

Publication number: CN203255902U
Application number: CN2013202109743U
Authority: CN
Inventors: 陈坤; 唐宏; 向明; 范贵文
Original assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Current assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Priority date: 2013-04-24
Filing date: 2013-04-24
Publication date: 2013-10-30
Anticipated expiration: 2023-04-24

Abstract

The utility model discloses a multi-pulley-block four-winch linkage derrick lifting platform which comprises a structural steel derrick, four winches, four pulley blocks, four first fixed pulleys, four steel wire ropes and a lifting hanging table. The four winches are symmetrically arranged in four corners and are started and operated simultaneously through a linkage device. Power is supplied by the four winches so that the steel wire ropes can be pulled and lifted. The lifting hanging table is driven by the steel wire ropes through the pulley blocks to rise and fall synchronous with the ropes. The fours winches and the pulley blocks are adopted by the multi-pulley-block four-winch linkage derrick lifting platform, load capacity is greatly improved under the condition that the power of a lifting machine is not increased, safety is guaranteed, the construction efficiency is improved, work time is saved, mechanical machine-teams and cost are saved, and meanwhile, the environment is protected.

Description

Many assembly pulley four machines interlock derrick lifting platforms

Technical field

The utility model relates to a kind of mechanical lifting device, particularly relates to a kind of many assembly pulleys four machines interlock derrick lifting platform.

Background technology

When large-scale, the heavy wares of industrial and civilian, the urban construction of transportation, usually adopt the Large-scale Mobile crane to lift.And in airtight space (such as factory building, tunnel, deep-well etc.), the high-altitude be installed by main equipment, when promoting main equipment, owing to be subjected to the restriction of confined space, the perhaps interference of miscellaneous equipment, facility position in the confined space, may cause the Large-scale Mobile crane can't enter in the confined space, perhaps the Large-scale Mobile crane can't carry out the lifting in place of main equipment high-altitude in confined space.

The utility model content

The technical matters that the utility model mainly solves provides a kind of many assembly pulleys four machines interlock derrick lifting platform, can finish and carry out the lifting in place of main equipment high-altitude in confined space.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of many assembly pulleys four machines interlock derrick lifting platform is provided, comprise: shaped steel derrick, four winchs, four assembly pulleys, four fixed pulleys, four steel ropes and promote cape, wherein, described four winchs are distributed in four corners symmetrically, described four winchs start operation simultaneously by linkage, and described four winchs provide power to draw high described steel rope, and described steel rope drives the synchronous rise and fall of described lifting cape by described assembly pulley.

Wherein, between a described fixed pulley and the winch strand oscillator can be set, described strand oscillator is positioned at winch wheel shaft top.

Wherein, described shaped steel derrick comprises four root posts and four spreaders, and a described fixed pulley is fixed on the inboard on top of the column of shaped steel derrick.

Wherein, described four assembly pulleys are distributed in four corners symmetrically, and each assembly pulley comprises No. two fixed pulleys and movable pulley, and described No. two fixed pulleys are fixed on the outside of the column of shaped steel derrick, described movable pulley with promote cape and link to each other.

Because the many assembly pulley four machines interlocks of the utility model derrick lifting platform has adopted four winchs and a plurality of assembly pulley, in the situation that does not increase gig power, greatly improve load carrying ability, guaranteed safety, improved operating efficiency, save man-hour, saved mechanical one-shift and expense.Simultaneously, these many assembly pulley four machines interlock derrick lifting platforms are by increasing many assembly pulleys, and it is about 50% to increase load-carrying ability in the situation that does not increase gig power, and same quantities is equivalent to save half man-hour.By saving calculating in 4 hours every day, then saving electric weight be: 7.5 kilowatts * 4 * 4H=120 kilowatt hour, be equivalent to can save every day 67.3 kilograms in coal, reduce 673 kilograms of carbon-dioxide emissions, therefore be conducive to environmental protection.

Description of drawings

Fig. 1 is the structural representation of the many assembly pulley four machines interlocks of the utility model derrick lifting platform.

Fig. 2 and Fig. 3 are the structural representations of many assembly pulleys of the many assembly pulley four machines interlocks of the utility model derrick lifting platform.

Fig. 4 and Fig. 5 are the structural representations of the winch wheel shaft strand oscillator of the many assembly pulley four machines interlocks of the utility model derrick lifting platform.

The specific embodiment

Below in conjunction with drawings and embodiments the utility model is elaborated.

With reference to Fig. 1, the preferred embodiments of many assembly pulley four machines of the utility model interlock derrick lifting platform comprises: shaped steel derrick 1, four winchs 2, four assembly pulleys 3, four fixed pulleys 7, four steel ropes 4 and promote cape 5.Wherein, described four winchs 2 are distributed in four corners symmetrically, described four winchs 2 start operation simultaneously by linkage, and described four winchs 2 link to each other with an end of four steel ropes 4 respectively, be used for providing power to draw high described four steel ropes 4, the other end of described four steel ropes 4 and described assembly pulley 3 are fixedly linked, and to drive described lifting cape 5 synchronous rise and fall by described assembly pulley 3, described shaped steel derrick 1 comprises four root posts and four spreaders.

Each assembly pulley 3 comprises No. two fixed pulleys 6 and movable pulley 8, described No. two fixed pulleys 6 are arranged on the inboard on top of the column of shaped steel derrick 1, a described fixed pulley 7 is arranged on the outside of the column of shaped steel derrick 1, and the height of a described fixed pulley 7 is lower than the height of No. two fixed pulleys 6.One end of described steel rope 4 links to each other with winch 2, fixes first afterwards in the lip-deep groove of a fixed pulley 7, and further fixes in the lip-deep groove of a fixed pulley 7.

With reference to Fig. 4 and Fig. 5, between described No. two fixed pulleys 7 and the winch 2 strand oscillator 9 can be set, described strand oscillator 9 is positioned at winch 2 wheel shafts top, steel rope 4 can only be twined perpendicular to the wheel shaft of winch 2, guarantee that the arrangement of steel rope 4 on winch 2 wheel shafts can not misplace, reduce the wearing and tearing of steel rope 4.

With reference to Fig. 2 and Fig. 3, described four assembly pulleys 3 are distributed in four corners symmetrically, each assembly pulley 3 comprises fixed pulley 6 and movable pulley 8, and a described fixed pulley 6 is fixed on the inboard on top of the column of shaped steel derrick 1, described movable pulley 8 with promote cape 5 and link to each other.

Wherein, the quantity of described assembly pulley 3 can be according to actual conditions, and to some extent increase and decrease in the situation that speed meets the demands.

Wherein, can increase the number of fixed pulley 7 and movable pulley 8 in described each assembly pulley 3, by changing assembly pulley 3 spread patterns, reduce the stressed of steel rope 4.

During use, at first that four winchs 2 are fixing on the ground, its position is corresponding with four angles that promote cape 5, convenient lifting operation; Then a fixed pulley 6 in the assembly pulley 3 is fixed on the inboard on top of the column of shaped steel derrick 1, movable pulley 8 is connected to by hawser or chain on four angles that promote cape 5, No. two fixed pulleys 7 are fixed on the outside of the column of shaped steel derrick 1; Be wrapped on the assembly pulley 3 by haulage cable 4, form a laborsaving system of traction, an end of haulage cable 4 is connected on the wheel shaft of a fixed pulley 6, and the other end passes strand oscillator 9 and is connected on the winch 2; Start simultaneously four winchs 2 by linkage at last, can lift by crane and promote cape 5 and top loading thereof.

The characteristics of the many assembly pulley four machines interlocks of the utility model derrick lifting platform: because the many assembly pulley four machines interlocks of the utility model derrick lifting platform has adopted four winchs and a plurality of assembly pulley; in the situation that does not increase gig power, greatly improved load carrying ability; guaranteed safety; improved operating efficiency; saved man-hour; save mechanical one-shift and expense, simultaneously, also helped environmental protection.

It below only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification sheets and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. four machines of assembly pulley more than kind interlocks derrick lifting platform, it is characterized in that, described many assembly pulleys four machines interlock derrick lifting platform comprises: shaped steel derrick, four winchs, four assembly pulleys, four fixed pulleys, four steel ropes and promote cape, wherein, described four winchs are distributed in four corners symmetrically, described four winchs start operation simultaneously by linkage, and described four winchs provide power to draw high described steel rope, and described steel rope drives the synchronous rise and fall of described lifting cape by described assembly pulley.

2. many assembly pulleys four machines interlock derrick lifting platform according to claim 1 is characterized in that between a described fixed pulley and the winch strand oscillator can be set, described strand oscillator is positioned at winch wheel shaft top.

3. many assembly pulleys four machines interlock derrick lifting platform according to claim 1 is characterized in that described shaped steel derrick comprises four root posts and four spreaders, and a described fixed pulley is fixed on the inboard on the top of shaped steel derrick column.

4. many assembly pulleys four machines according to claim 1 and 2 interlock derrick lifting platform, it is characterized in that, described four assembly pulleys are distributed in four corners symmetrically, each assembly pulley comprises No. two fixed pulleys and movable pulley, described No. two fixed pulleys are fixed on the outside of the column of shaped steel derrick, and described movable pulley links to each other with the lifting cape.