CN102249160A

CN102249160A - Tower crane with double layered booms

Info

Publication number: CN102249160A
Application number: CN2010101796655A
Authority: CN
Inventors: 葛振志
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-18
Filing date: 2010-05-18
Publication date: 2011-11-23

Abstract

The invention relates to a tower crane with double layered booms. The tower crane comprises an upper boom and a lower boom. A spire is included in the upper boom. A hoist boom and a balance boom of the lower boom are connected though a round connecting plate. The lower boom is shorter than the upper boom. The upper boom and the lower boom can operate independently, and can cooperate to hoist one object. With the tower crane provided by the invention, work efficiency can be improved, and the occupation of space can be reduced.

Description

Tower crane with double-deck arm

Technical field: the invention belongs to a kind of of weight-lifting equipment.

Background technology: at present, tower crane is according to having or not the pinnacle of a pagoda can be divided into tack tower crane and tower head tower crane.Which kind of hoisting crane all has only the crane arm and the equilibrium arm of a cover job.For the tighter building site of construction period, have only the quantity that increases hoisting crane to meet the demands, so just increased the cost of building.

Summary of the invention: because separate unit hoisting crane work efficient is relatively low, can not be suitable for construction fast speed building site, hoisting crane of the present invention can increase substantially the efficient of separate unit hoisting crane.

The technical solution used in the present invention is: hoisting crane has two-layer crane arm, equilibrium arm, and crane arm, the equilibrium arm on upper strata are long, link together by steel rope and pinnacle of a pagoda.Crane arm, the equilibrium arm of lower floor are shorter, and the terminal pad by the centre links together.The body of the tower of hoisting crane is assembled by standard knot, and the standard knot at top is connected with lower platform, and the outside is a self-hoisting unit of TQ 60/80.The lower platform bottom is connected with standard knot, self-hoisting unit of TQ 60/80 and turning down mechanism, and the lower platform top is connected with the swing type mechanism of upper strata arm.The upper strata arm is the same with the tower type crane structure of normal tape pinnacle of a pagoda.Lower platform is the central module of complete machine, and two-layer up and down suspension arm mechanism, body of the tower and self-hoisting unit of TQ 60/80 all are attached thereto and connect.During the work of this hoisting crane, the upper strata arm is responsible for building site at a distance, and building site nearby is responsible for by the galianconism of lower floor, can select to install mechanical position limitation or electronic limit to prevent the interference of lifting hook and steel rope and lower floor's arm on the crane arm on upper strata.

The invention has the beneficial effects as follows that on busy building site, a playscript with stage directions lifting function is when the logical hoisting crane use of two Daeporis.And when lifting profile large article, both arms can be worked simultaneously, have unique advantage.The present invention saves cost, raises the efficiency and reduces occupation space.

Description of drawings: Fig. 1 is machine shape figure, and wherein 1 is body of the tower, and 2 is self-hoisting unit of TQ 60/80, and 3 are turning down mechanism, and 4 is terminal pad, and 5 is lower platform, and 6 is last swing type mechanism, and 7 is lower floor's suspension arm mechanism, and 8 is the upper strata suspension arm mechanism.Wherein the cross section of the section ratio standard knot of lower platform is little, and than being easier to pass turning down mechanism, this cross section is adopted circular to make things convenient for the rotation of terminal pad simultaneously.

The specific embodiment: in Fig. 1, body of the tower (1) is formed by connecting with high strength bolt by a plurality of standard knots.Self-hoisting unit of TQ 60/80 (2) is attached to the body of the tower outside, and when hoisting certainly, the bottom of lower platform (5) is connected with self-hoisting unit of TQ 60/80, and disconnects with standard knot, and after the standard knot dress was neat, lower platform was saved high strength bolt with the standard of going up most and is connected.Terminal pad (4) links together the crane arm of lower floor's suspension arm mechanism and equilibrium arm, becomes integral body, and turning down mechanism (3) is connected the bottom of lower platform, and whole lower floor arm is moved in a circle around the bottom of lower platform.

Claims

1. the tower crane that has double-deck arm, this hoisting crane comprises body of the tower, upper strata suspension arm mechanism, goes up swing type mechanism, lower platform, turning down mechanism, lower floor's suspension arm mechanism, terminal pad, self-hoisting unit of TQ 60/80 and associate member, it is characterized in that: have two crane arms, equilibrium arm, the lower platform that is attached thereto in addition.

2. the tower crane with double-deck arm according to claim 1, it is characterized in that: in the above one deck crane arm, equilibrium arm, go up swing type mechanism, pinnacle of a pagoda below, also have a cover crane arm, equilibrium arm, reach turning down mechanism, the crane arm of lower floor, equilibrium arm are lacked than crane arm, the equilibrium arm on upper strata, and lower floor's crane arm is connected by terminal pad with equilibrium arm.

3. the tower crane with double-deck arm according to claim 1 is characterized in that: the top of lower platform is connected with the upper strata swing type mechanism, and the bottom is connected with lower floor swing type mechanism, self-hoisting unit of TQ 60/80, body of the tower.