CN2144641Y

CN2144641Y - Self-erecting crane

Info

Publication number: CN2144641Y
Application number: CN 92215493
Authority: CN
Inventors: 林煌全
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-04-30
Filing date: 1992-04-30
Publication date: 1993-10-27
Anticipated expiration: 2002-04-30

Abstract

The utility model belongs to the field of cranes, comprising a pulley mechanism, a hoist machine connected with the pulley mechanism, a pair of gantry frames arranged on the upper layer of a construction plane, and a suspended load cross beam which is erected on the gantry frames. The pulley mechanism is connected with the cross beam, and the aim of lifting and falling the hoist machine is realized by the drive of the power control device of the hoist machine. The match of the pulley mechanism and the suspended load cross beam can be the match of the pulley and the suspended load cross beam or the match of a gear wheel and the suspended load cross beam with teeth. The utility model has the advantages of simple design and obvious social benefit, and is suitable for all engineering which requires suspended load goods.

Description

Self-erecting crane

The utility model relates to the hoisting crane technical field.

At present, the steel skeleton construction technology of building is widely used.Because of every technology and preparation of construction that it is released are made something perfect even more perfect for construction business especially.Wherein the form of loop wheel machine and effect usually come into one's own.Build the state-of-the art loop wheel machine of high buildings and large mansions now and surely belong to dragonfly formula loop wheel machine (as Fig. 1).But also there is a lot of shortcoming and defect in it.By dress this kind loop wheel machine the time, must when each building frame steelframe, keep somewhere floor hole, for mounting loop wheel machine, make and in work progress, all must treat could construct in each building floor metope or interior trim after steel frame is finished.And every liter of frame Stall or finish frame to build and hang that tear open all must be again by other loop wheel machines, equipment to ground floor etc. during for each building of suspension bracket steel member, the loop wheel machine of being joined, equipment must be suited measures to local conditions again, tend to expensive human and material resources, and danger is very high.Because this kind loop wheel machine is using in the manipulation, because the needs of construction, its cantilever might be very long again; usually can revolve to move to hang above adjoining building and hold object, cause neighbourhood's contradiction and dispute, above-mentioned in a word loop wheel machine is in construction; time-consuming, take a lot of work, take money, influence job schedule and efficient.

The purpose of this utility model is to provide a kind of building height or surrounding environment space constraint of not being subjected to, do not use second loop wheel machine to install and remove, can directly in construction work, be used as ascending, descending displacement lifting object, make can construct the continuously hand-held loop wheel machine of metope, interior trim of building engineering.

The alleged a kind of hand-held loop wheel machine of the utility model is to realize like this.

It by power control unit, cantilever, suspension hook, pulley mechanism, hang and carry a crossbeam, steel rope, portal frame etc. and form, wherein an end of steel rope hauls objects such as comprising engine installation, arm, suspension hook, the other end is walked around pulley mechanism again in the rotating shaft of power control unit, so that make loop wheel machine make vertical promotion and cross travel; Pulley mechanism is fixed on to hang and carries on the crossbeam, carries beam erection on a pair of portal frame and hang, and each portal frame is made up of support foot rest and a load crossbeam.

Advantage of the present utility model:

1. the utility model makes loop wheel machine be able to finish under the support of no external force and other equipment from rising from falling, so it saves many human and material resources, financial resources, and brought bigger safety factor to construction, also reduced the influence of surrounding environment, and this influence beidirectional often.

2. because the liter certainly of loop wheel machine falls certainly, make job schedule accelerate greatly, after the steel frame of each layer is finished, just can construct continuously metope, interior trim at once, and after need not waiting whole steel frames completions, in layer do metope, interior trim again.So just can shorten construction period, increase economic efficiency.

3. general portal frame can be got the steel frame of being constructed, so just need not be specially for adding material and building gantry and taken a lot of trouble, taken money, effort gas.

The following drawings and embodiment will be further described architectural feature of the present utility model:

Fig. 1 is the work scheme drawing of traditional type loop wheel machine;

Fig. 2 carries the scheme drawing of state certainly for the hand-held loop wheel machine;

Fig. 3 is the work scheme drawing of hand-held loop wheel machine when construction;

Fig. 4 is the scheme drawing of hand-held loop wheel machine in mobile status;

Fig. 5 is that the hand-held loop wheel machine is at the scheme drawing that falls state certainly;

Fig. 6 hangs the another kind cooperation figure that carries crossbeam and pulley mechanism.

Wherein drawing is encoded to:

The 1-power control unit, 2-arm, 3-suspension hook, 4-pulley mechanism, the pulley mechanism of 4 '-band gear, 5-hang and carry crossbeam, 5 '-toothed hanging carried crossbeam, 6-load crossbeam, 7-support foot rest, the 8-bearing beam, 9-steel rope, 9 '-steel wire rope, 10-moves the formula pulley mechanism, the 11-portal frame, and 11 '-tiltedly draws portal frame, the 12-plane of constructing, the 13-gear.

Embodiment 1: as accompanying drawing 2, shown in 3, stride the steel frame of spacing as a pair of portal frame 11 on one of the last layer plane of having put on the shelf, construction plane 12, put on the shelf one to hang at the load crossbeam 6 of portal frame 11 and carry a crossbeam 5, one end of steel rope 9 hauls and comprises power control unit 1, arm 2, the object of suspension hook 3 grades, one end is walked around pulley mechanism 4 again in the rotating shaft of power control unit 1, in the time will promoting loop wheel machine, as long as pulley mechanism 4, be fixed on to hang and carry on the crossbeam 5, the motor of control setup turns on the power, rotating shaft begins rotation, steel rope in its rotating shaft, is constantly shortened owing to steel rope 9, under the effect of pulley mechanism 4 like this, loop wheel machine is carried on beginning, to desired location.At two bearing beams 8 of loop wheel machine undercarriage, loop wheel machine is finished from putting forward task then.

Embodiment 2: shown in accompanying drawing 4,5, in the structure of embodiment 1, the portal frame 11 of the one side of dismantling, be extended down to the edge of building, establish and tiltedly draw portal frame 11 ', replace hanging a year crossbeam 5 with steel wire rope 9 ', tight di-portal frame, steel rope 9 one ends haul objects such as power control unit 1, arm 2, suspension hook 3, and the other end is walked around to walk around behind the pulley unit 4 of a Tape movement pulley again and tiltedly drawn portal frame 11 ', to the rotating shaft of power control unit.Behind motor starting, steel rope 9 constantly shortens, and makes loop wheel machine through tiltedly drawing portal frame 11 ' direction in-migration, and movably pulley mechanism makes loop wheel machine can move, slide, and walks to fully until loop wheel machine and tiltedly draws the portal frame place, so that break away from building fully, pin pulley mechanism 4 this moment, makes it no longer mobile, then, pull down arm 2, then, from newly changing steel rope 9, make it behind motor starting, the steel rope 9 that can constantly lengthen along with the rotation of rotating shaft makes loop wheel machine be dropped to ground gradually.

Embodiment 3, and as shown in Figure 6, the pulley that is used to slide in the portable pulley mechanism 10 makes gear 13 into, and carry crossbeam 5 ' engagement with toothed hanging, and all the other are with embodiment 1.

Claims

1, a kind of hand-held crane by cantilever, suspension hook, control circle round, power control unit of lifting, displacement, pulley mechanism etc. form, it is characterized in that it has steel cable, one end of steel rope hauls the object that comprises power dress, arm, suspension hook etc., and the other end is walked around pulley mechanism again in the rotating shaft of power control unit; Pulley mechanism is fixed on to hang and carries on the crossbeam, carries beam erection on a pair of portal frame and hang, and each portal frame is made up of two support foot rests.

2, a kind of hand-held loop wheel machine as claimed in claim 1 is characterized in that it is a steel wire rope that is fixed between gantry that hanging of it carried crossbeam.

3, a kind of hand-held loop wheel machine as claimed in claim 1, it is characterized in that hanging a year crossbeam has toothed hanging to carry a crossbeam, and the wheel that is used for displacement in the pulley mechanism is a gear, and a gear and the toothed year crossbeam that hangs are meshing with each other.