CN1034901A

CN1034901A - Building is with rising portable crane

Info

Publication number: CN1034901A
Application number: CN 89105381
Authority: CN
Inventors: 胡洪兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-01-10
Filing date: 1989-01-10
Publication date: 1989-08-23

Abstract

Building can be fixed on the body of wall of new block by a roof beam structure base with rising portable crane, and finishes the light large-scale component in the building operation and the crane lifting service of fragmentary thing by two kinds of versions.Because this machine can be directly installed on the fixing body of wall, so save supporter it and the existing weight-lifting equipment of a heaviness, particularly the derrick hoisting crane is compared, and it is light to have structure.Install easily, save steel, characteristics such as conveniently moving.

Description

Building is with rising portable crane

The present invention relates to a kind of portable crane that is installed on the building plane that successively raises.

In the building operation, various items be risen to the weight-lifting equipment of each layer plane, use.Generally be well cabinet frame and rocking arm.When lifting fragment of brick class oddment, with the hanging basket of well cabinet frame the inside.During the relatively large member of lifting cassette ceiling and other, with the rocking arm swung above the well cabinet frame.

Because the well cabinet frame need be used a lot of steel, so not only cost is very high for it, and very heavy, the well cabinet frame upright good after, as need more adjourn, very difficulty.

The objective of the invention is, provide a kind of with rising portable crane, it can be installed in above the room wall of new block.Easy installation and removal, structure is light, saves steel.

The object of the present invention is achieved like this: generally speaking.Sequence of construction is: the ground floor body of wall is built required height earlier.The placing concrete beam.Lay cassette ceiling again, and then build second layer body of wall.When the lifting cassette ceiling, the roof beam structure base is fixed on above the body of wall of new block with the tensioning hook, arm is installed on the roof beam structure base by bracing frame, after by winch member being sling, moves in arm by pulley yoke.Member taken in the working face put down, finish hoisting operation.Lay when cassette ceiling and to finish.The roof beam structure base can be installed in and lift by crane fragment of brick class oddment above the cassette ceiling.

Provided by the present invention with rising portable crane, owing to it can be installed on the body of wall of new block, and need not erect, so its lightweight construction with ground.Save steel.And be easy to install, it is very convenient to change the position.

Concrete structure of the present invention is provided by following examples and accompanying drawing:

Fig. 1 is the structural representation when being used for lifting relatively large member such as cassette ceiling.

Structural representation when Fig. 2 is lifting fragment of brick class oddment.

Fig. 3 is position and the interior arrangement sketch of pulley yoke on arm.

Describe concrete device of the present invention and service condition in detail below in conjunction with accompanying drawing:

This device comprises the bracing frame (2) that is installed on the roof beam structure base (1) and is installed in arm (3) on the bracing frame (2).On the arm (3) that front end has been scratched: collision block (4) and cover hook (5) are equipped with in the bottom.Be equipped with pulley yoke (6) on the Liang Yi.Front end is equipped with and turns to rope sheave (7).Close suspension hook place on steel rope.Fix a spacing card (8) in pulley yoke (6): roller (12) is equipped with on top, and the middle part is equipped with and is turned to rope sheave (14) and voltage limiting and electricity cutting device (11) and anti-fall locking plate (13).

During work: connect earlier the reach power supply, the motor rotation member of slinging.Voltage limiting and electricity cutting device this moment (11) pushes against normal switch-dividing (15) and connects the lifting power supply then.And turn off the reach power supply, when winch makes member be elevated to certain position by turning to rope sheave (7) (18), the spacing card (8) that is fixed on the steel rope is raise and is hit voltage limiting and electricity cutting device (11) by the following anti-fall locking plate (13) that rushes open, normal switch-dividing (15) is disconnected, simultaneously, the opening rectangle frame of voltage limiting and electricity cutting device (11) bottom fastens two cuboids of anti-fall locking plate (13) front end, makes anti-fall locking plate (13) locking.Because this moment, winch cut off the power supply.So spacing card (8) just drops on the anti-fall locking plate (13), turns off the lifting power supply then, because arm (3) front end has upwards been scratched.And winch does not provide power, so pulley yoke (6) is subjected to an effect along the sliding force of bevel direction.Making pulley yoke (6) drive member moves to arm (3) rear portion.When putting in place, collision block (4) hits back original position with voltage limiting and electricity cutting device (11).Because the inclined-plane of spacing card (8) bottom.Make anti-fall locking plate (13) separately.Member falls.Overlap hook (5) simultaneously and hook pulley yoke (6).

After member unloads, unclamp cover hook (5) and connect the reach power supply.When suspension hook rises to certain position, spacing card (8) is by in the anti-fall locking plate of following insertion (13), because the effect of spring makes spacing card (8) be subjected to a bigger resistance above the anti-fall locking plate (13), because steel rope is in continuous contraction.This resistance just changes the pulling force of steel rope to pulley yoke (6) into.And pulley yoke (6) is moved forward along arm (3).When pulley yoke (6) moves on to arm (3) front end, hit travel switch.Make power cut-off, pulley yoke (6) stops to move.

Under zero load, behind the arm front end, move, as long as move power supply after connecting as need pulley yokes (6).

After the cassette ceiling placement finishes, roof beam structure base (1) directly can be fixed on the cassette ceiling (10).

Claims

1, building has arm (3), roof beam structure base (1), bracing frame (2), tensioning hook (9), hoisting wirerope, suspension hook with rising portable crane, it is characterized in that: the roof beam structure base (1) of this machine is fixed on the room wall of new block or above the cassette ceiling (10).

2, according to claim 1 described device, it is characterized in that: bracing frame (2) is installed on the roof beam structure base (1), and arm (3) is installed on the bracing frame (2).

3, according to claim 2 described devices, it is characterized in that: arm (3) front end has upwards been scratched, and on arm (3): front end is equipped with to turn to and is equipped with pulley yoke (6) bottom on rope sheave (7) Liang Yi collision block (4) and return card (5) are housed.

4, according to claim 3 described devices, it is characterized in that: pulley yoke (6) middle part is equipped with and is turned to rope sheave (14) and voltage limiting and electricity cutting device (11) bottom that anti-fall locking plate (13) is housed

5, according to claim 2 described devices, it is characterized in that: spacing card (8) is housed on the hoisting wirerope.

6, according to claim 2 described devices, it is characterized in that: arm (3) front end is equipped with normal switch-dividing (15).