CN2061931U

CN2061931U - Cable crane

Info

Publication number: CN2061931U
Application number: CN 89209634
Authority: CN
Inventors: 鲁洪祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-10-23
Filing date: 1989-10-23
Publication date: 1990-09-12

Abstract

The utility model discloses a cable crane, which is characterized in that the hoisting rope only bears hoisting and doesn't bear right and left traction. The right and left traction ropes wind on the two groups of traction pulley blocks and winding engine barrels, the right and left traction of the weights is achieved through the reverse rotation and the positive rotation of the winding engine, the hoisting and the traction do not influence each other, and the hoisting and the traction can be done together or separately. Therefore, the utility model has the advantages of convenient operation, safety, large elevating capacity, and labor-saving.

Description

Cable crane

The utility model relates to a kind of rope hoisting crane, belongs to elevator machinery.

In industrial building and maintenance engineering, the range of use of hoisting crane is very extensive, installs to maintenance from loading and unloading operation and all will use.The elevator machinery type that adopts in construction is a lot, mainly contains: derrick crane, rope hoisting crane, tower crane, railway formula hoisting crane, rubber-tyred and automobile crane, trac. formula hoisting crane etc.Wherein the rope hoisting crane claims the cabling coaster again, is to be taken by two wood that two upright masts or thick round log are made, and one or two crude steel ropes are set up in the centre, a device row mechanism of car and a pulley of reusing on steel cable.The left drag rope of this hoisting crane is a single rope, and right drag rope is used hoisting rope, also is single rope, so hoisting capacity is less, if hoisting capacity traction difficulties greatly then.Traction and lifting assembly pulley interdepend about making simultaneously, lifting and about two actions of traction can not carry out simultaneously, so operate numerous rope, efficient is low.

The purpose of this utility model is to provide a kind of hoisting capacity big, the rope hoisting crane that efficient is high.

Rope hoisting crane of the present utility model comprises the dilatory rope of two upright masts, fixed mast.Be fixed on two carrying steel cables, device on the mast in the carrying pulley of carrying on the steel cable, the gin wheel groups that link to each other with the carrying pulley by equalizer pulley, crane rope and left and right sides traction steel rope of cable and leading sheave on the gin wheel group.Described crane rope one end is fixed on the mast, after walking around the gin wheel group and being fixed on leading sheave on another root mast again on the cylinder of the winch that hoists, described left and right sides traction steel rope of cable is on two groups of hauling block groups, the fixed pulley of every group of hauling block group is separately fixed on two masts, its movable pulley all links to each other with the carrying pulley, a termination of left and right sides traction steel rope of cable is fixed on one group of hauling block group, walk around rack winch cylinder and leading sheave again after walking around this group assembly pulley, walk around another group hauling block group at last, its another termination is fixed on the steel cable degree of tightness setting device.About traction by winch counter-rotating or just transferring realization, the quantity of left and right sides hauling block group is according to by the load decision of the weight of lifting object and power, general commonly used one by one, 22,33,44 assembly pulleys.

The utility model has the advantages that hoisting crane and left and right sides traction system are independent separately, be independent of each other, hoist and both drew and can carry out simultaneously that also can carry out separately, so easy to operate, safe and reliable, hoisting capacity is big, the efficient height is laborsaving.The bearer cable amount of deflection is big, can make full use of the pulling force of steel cable, increases lifting weight.

Fig. 1 is a rope crane structure scheme drawing of the present utility model, among the figure: 1,12 masts, 2 carrying steel cables, 3 crane ropes, 4 left and right sides traction steel rope of cable, 5 carrying pulleys, 6 gin wheel groups, 7,8 hauling block groups, 9,11 leading sheaves, 13 equalizer pulleys, 14 dilatory ropes.

Fig. 2 is the rope crane structure scheme drawing with two cover gin wheel groups of the present utility model, among the figure: 1,12 masts, 2 carrying steel cables, 3 crane ropes, 4 left and right sides traction steel rope of cable, 5 carrying pulleys, 6 gin wheel groups, 7,8 hauling block groups, 9,11 leading sheaves, 13 equalizer pulleys, 14 dilatory ropes, 15 crossbeams.

Fig. 3 is traditional rope crane structure scheme drawing.

Embodiment 1: referring to Fig. 1, carrying steel cable 2 diameters are ∮ 20mm, and the one end is fixed on the mast 1, walk around equalizer pulley 13 backs that are separately fixed on mast 12 and 1 and form bifilar ropeway carrying-rope, and its angle is 90 °-110 °.Gin wheel group 6 and hauling block group 7,8 are duplex type assembly pulley (promptly--assembly pulley).Crane rope 3 one ends tie up on the mast 1, walk around gin wheel group 6 after, by being fixed on two leading sheaves 9 on the mast 12 to volume the machine that hoists.Hauling block group 7 and 8 its fixed pulleys are separately fixed on mast 1 and 12, and its movable pulley all links to each other with carrying pulley 5.Traction steel rope of cable 4 one ends in the left and right sides tie up on the fixed pulley of assembly pulley 7, successively walk around behind its movable pulley and the fixed pulley downwards through being fixed on leading sheave 11 on the mast 1 and walk around the cylinder 10 of rack winch, again upwards through leading sheave 11, through the fixed pulley of assembly pulley 7 left, successively walk around the fixed pulley and the movable pulley of assembly pulley 8 again, and link to each other with steel cable degree of tightness setting device through its fixed pulley.

Embodiment 2: referring to Fig. 2, carrying steel cable 2 diameters are φ 20mm, and its two ends are separately fixed on mast 1 and 12, and two carrying pulley 5 equal framves are carrying on the steel cable 2, and by crossbeam 15 fixed phase at a certain distance, 2 one-tenth 90 °-110 ° of angles of carrying steel cable.Each the carrying pulley 5 with one one by one gin wheel group 6 link to each other, a weight can be fixed in two gin wheel group 6 lower ends.Be wound with 3, two crane rope 3 one ends of a crane rope on each gin wheel group 6 and be fixed on the mast 1, walk around respectively and walk around two leading sheaves 9 being fixed on the mast 12 behind two pulleys of gin wheel group 6 again to the winch that hoists.Two pulleys of hauling block group 7 are separately fixed at mast 1 and crossbeam 15 right-hand members, and two pulleys of hauling block group 8 are separately fixed at mast 12 and crossbeam 15 left ends.The winding of left and right sides traction steel rope of cable 4 and embodiment 1 are identical.

Claims

1, a kind of rope hoisting crane, comprise two upright masts 1 and 2, fixed mast 1 and 12 dilatory rope 14, be fixed on carrying steel cable 2 on mast 1 and 12 by equalizer pulley 13, the carrying pulley 5 of device on carrying steel cable 2, the gin wheel group 6 that links to each other with carrying pulley 5, crane rope 3 and left and right sides traction steel rope of cable 4 and leading sheave 9 on the gin wheel group 6, a termination that it is characterized in that described crane rope 3 is fixed on the mast 1, after it is walked around gin wheel group 6 and is fixed on leading sheave 9 on another root mast 12, again on the cylinder of the winch that hoists, described left and right sides traction steel rope of cable 4 is on two groups of hauling block groups 7 and 8, two groups of hauling block groups 7 and 8 fixed pulleys are separately fixed on two masts 1 and 12, its movable pulley all links to each other with carrying pulley 5, a termination of left and right sides traction steel rope of cable 4 is fixed on one group of hauling block group 7, after it walks around hauling block group 7, walk around winch cylinder 10 and leading sheave 11 again, walk around another group hauling block group 8 at last, its another termination is fixed on the steel cable degree of tightness setting device.

2, rope hoisting crane according to claim 1, it is characterized in that described carrying pulley 5 is 2, be separately fixed at the two ends of crossbeam 15, described gin wheel group 6 is 2, link to each other with two carrying pulleys 5 respectively, described crane rope 3 is 2, respectively on two gin wheel groups 6.