Study on lifting mechanism steel wire rope with lifting mechanism of crane ladle

At present, the steel enterprises in our country are gradually going towards the high technology.The casting cranes used in foundry production process are also gradually developed to high tonnage and fast speed.The reliability of hoisting ladle is also higher and higher. This paper describes a new type of wire rope winding measure to prevent the tipping of large casting crane.Can prevent hoisting of ladle, ensure safe production.

The new crane hoisting mechanism is composed of wire rope winding device

The lifting mechanism of the new crane hoisting mechanism has the function of preventing the tilting of the ladle. The design of the lifting mechanism is symmetrical in the center line of the trolley.Mainly has four parts, one is the drum, the second is the pulley, 3 it is balance arm device, the jacket is equipped with the axis, and there are two lifting point, four is pulley block, block and tackle to, haode below, figure 1 new crane hoisting mechanism diagram, figure 2 for wire rope winding hoist.

The parts of the figure are as follows:

1) 1 is the reel, lowercase a is the axis of the drum, A1 and A2 are the two parts of the drum.

2) 2 is the upper pulley device, and B and C are two pulley groups, which are tied together in the operation.B1 and B2 are two parts of the slide group B, the lowercase b-b is its axis, C1 and C2 are two parts of the pulley group C, the lower case c-c is the axis of the pulley block C.

3) 3. The center line of the lifting center is symmetrical, and there are several groups in the pulley group. Each group has several pulleys, and the b-b axis and c-c are both perpendicular to a-a.

4) 4 is the balance arm device.D -d is its axis, and on the balance arm device, D1 and D2 are designed.

5) the pulley block of the hoisting gear is tied with the two pulley groups of E and F, with the lowercase e-e pulley group E axis, and the lower case F - F is the axis of the pulley group F.

6) E1 and E2 pulley group are important components of E, also divided into two parts E1 and E2. Similarly, F1 and F2 are important components of E.

7) in the pulley block, there are multiple pulleys in each unit.In general, the wire rope ratio is a multiple of 2.The axis of the balancing arm installed on the trolley is vertical e-e, f-f.

The realization of the winding of the lifting mechanism of the new crane lifting mechanism

1) the cross-winding method of the A1 side of the reel.First take out side of wire rope from the reel A1, around the block and tackle E1, then round to the car frame are connected to the pulley block B1 plane, then many times to winding of pulley block B1 and block and tackle E1, until all the pulley block must have a rope round;And then will be cross winding, wire rope pulley block B1 comes first, through the cross down, around the hook block and tackle F2 pulley, from F2 pulley in wound up, thus reach the pulley block on the C2.In this way, the F2 and the pulley group C2 are wound round and round, until all the pulley groups must have a wire rope around.

2) cross winding drum A2 side method, first of all take out side of wire rope from the reel A2, around the block and tackle E2, pulley block E2, wire rope from the reel A2 side down around to sling pulley on the same side of the block and tackle E2, then round to the car frame are connected to the pulley block B2 plane, then many times to winding of pulley block B2 and block and tackle E2, until all the pulley block must have a rope round;Then cross winding rope, begin with pulley block B2, through cross down, around the hook block and tackle F1 pulley, from F1 pulley upwards, thus reach the pulley block C1.In this way, the twisting between the twine and the pulley group C1 is carried out repeatedly, until all the pulley groups must have a wire rope around.

The advantages of the new crane hoisting mechanism of hoisting mechanism

1) with cross manner, so that each wire rope on the drum with diagonal points a and c or b and d are connected, so, when lifting the ladle, there will be symmetrical in ladle trunnion axis on both sides of the four points.That is to say, when the drum A1 is broken by a wire rope in A2, it will be able to disconnect the two wires on the two rolls quickly.The intact steel cord continues to work, lifting the ladle.Or two wire ropes located on two rolls are disconnected.In this way, the prevention of the steel wire rope disconnection, avoid the heavy equipment accident.

2) the axis of the pulley of the new crane lifting mechanism is different from that of ordinary pulley, and the biggest characteristic is that its direction is different, perpendicular to the spool axis.At the same time, the pulley group was changed from one group of pulley groups to two short groups.The amount of processing is significantly reduced and installation is relatively easy.