CN2184679Y

CN2184679Y - Bridge ship unloader with four-drum traction grab bucket

Info

Publication number: CN2184679Y
Application number: CN 94208093
Authority: CN
Inventors: 张奇兴; 史硕敖; 潘建荣
Original assignee: Huaxin Electric Technology Engineering Co Hangzhou
Current assignee: Huaxin Electric Technology Engineering Co Hangzhou
Priority date: 1994-03-30
Filing date: 1994-03-30
Publication date: 1994-12-07
Anticipated expiration: 2004-03-30

Abstract

A bridge ship unloader with four-drum traction grab bucket is characterized in that a machine room and a four-drum mechanism are arranged on a lower-layer machine table; in the four-reel mechanism, a traction motor is arranged between a lifting reduction gearbox and an opening and closing reduction gearbox, a clutch is arranged between a gear of the lifting reduction gearbox and a brake, and another clutch is arranged between a gear of the opening and closing reduction gearbox and another brake; a feeding machine, a large block separation groove provided with grid bars, a large block hopper and a large block separation device composed of a sector door are sequentially arranged at the outlet of the hopper in the blanking and conveying mechanism. The whole machine has good stability, the steel rope is convenient to replace, and large solid blocks can be separated. Therefore, the utility model discloses can use widely when the pier operation.

Description

Four roll tracting grab bridge type ship unloading machine

The utility model relates to and having at the chassis fixing or that movably walk on crane span structure or the door frame or the hoisting crane of dolly.

After the World War II, the speed development of water volume of freight to double in per ten years, grab bucket bridge type ship unloader master is being hoisted by crane span structure, grab car, spool type and switching mechanism, blanking transport establishment etc. form.The grab bucket bridge type ship unloader, mainly contain two kinds at present, a kind of is that lifting mechanism, switching mechanism and wheeling mechanism are all concentrated on automatic carriage grab bucket bridge type ship unloader on the grab car, rely on wheeling mechanism, dolly can be walked on the crane span structure track voluntarily, the travelling load of crane span structure is big in the working process, complete machine heaviness, harbour cost height; Another kind is with lifting mechanism, switching mechanism and the dolly trailer wagon grab bucket bridge type ship unloader by wire rope traction, travelling load on the crane span structure only is the former about 1/3, and complete machine is from heavy and light, and the harbour cost is low, the complex art economy index is good, is more widely used.Traction grab bucket bridge type ship unloader, according to the mode of traction difference, can be divided into again compensation trolley towed, run through towed etc. three kinds of the towed and four winding drum of dolly.Compensation trolley towed (as shown in Figure 1), steel cable a system is the most complicated, be with 9 steel cables, consumption rope amount is big, change overhaul very difficult; Run through dolly towed (as shown in Figure 2),, in the grab bucket assembly pulley, constantly move the flexural fatigue and the wearing and tearing of increase steel cable because raising line b, switching rope c and dolly 1 come and go in the translation process; The rope system of four winding drum formula (as shown in Figure 3) raising line b, switching rope c is simple; Consumption rope amount is few, France good profit (CAILLARD) company ship unloaders, once four winding drum was constituted compound type hoisting mechanism (as shown in Figure 4), owing to hoist, three mechanisms of switching, dolly traction integrate, can only accomplish that at most two reels on same the drop-gear box rotate together, when changing rope, good steel cable must followed and changed steel cable on the another reel and put together or receive, because steel cable is not only long, not only heavy but also dirty, change relatively difficulty of steel cable, and machine room 3 and winch employing inhead type (as shown in Figure 5), the machine gravity height, stability is bad.More than in the blanking transport establishment of various ship unloaders, do not have the bulk materials separation device, often have 5% coarse coal in China's raw coal greater than 300mm, it is to stop up material blanking tube, tear and transport adhesive tape, blocks the major cause of crusher, causes unnecessary loss.

The purpose of this utility model is: machine room and winch adopt underneath type, and the grab bucket bridge type ship unloader that the bulk disengagement gear of material is arranged in the blanking transport establishment on the machine and adopt later-model four winding drum to draw can overcome the existing problem of background technology.

The technical solution of the utility model is: comprise crane span structure, grab car, machine room, four winding drum mechanism and blanking transport establishment.Machine room and four winding drum mechanism are placed on lower floor's board; In four winding drum mechanism, traction electric machine is installed in the drop-gear box and opening and closing between the drop-gear box of hoisting, at the gear of the drop-gear box that hoists and the indirect clutch of drg, between the gear of switching drop-gear box and another drg, connect another power-transfer clutch; Install feeder successively, the bulk separating tank of grizzly bar be housed at hopper outlet place in blanking transport establishment, the bulk disengagement gear that bulk hopper and bulk material outlet fan-shaped gate are formed.

Below in conjunction with accompanying drawing, provide details of the present utility model by description to embodiment.

Fig. 1, the towed wiring scheme drawing of compensation trolley;

Fig. 2, run through little tractor truck formula wiring scheme drawing;

Fig. 3, the towed wiring scheme drawing of four winding drum;

Fig. 4, Jia Li company compound type winch constructional drawing;

Fig. 5, Jia Li company four winding drum traction grab bucket bridge type ship unloader;

Fig. 6, the utility model four winding drum traction grab bucket bridge type ship unloader structural representation;

Fig. 7, the utility model four winding drum mechanism outside drawing;

Fig. 8, the utility model four winding drum mechanism principle figure;

Fig. 9, the utility model coarse coal disengagement gear scheme drawing.

As shown in Figure 6, the utility model comprises grab car 1, crane span structure 2, machine room 3, lower floor's board 4, four winding drum mechanism 5 and blanking transport establishment 6.Machine room 3 and four winding drum mechanism all are placed on lower floor's board 4, and complete machine takes the underneath type machine room to arrange, and can make grab bucket directly fall big track ISN women's head-ornaments again.The underlying machine room can make the wind load of machine room and capsizing moment that horizontal inertia loading causes reduce more than 50%, improves complete machine stability.

As Fig. 7, shown in Figure 8, traction electric machine 17 is installed in the drop-gear box 12 and opening and closing between the drop-gear box 13 of hoisting, the gear 14 of drop-gear box 12 that hoists ' with drg 16 ' indirect clutch 15 ', at the indirect clutch 15 of the gear 14 that opens and closes drop-gear box 13 with drg 16.Rotate when opening and closing motor 7, drg 8 declutches, and the switching drop-gear box 13 by the planetary reduction gear that is meshed by cylindrical wheel and two shells is formed can make switching reel 9,9 ' generation rotate in the same way.In like manner, lifting motor 11 can make hoisting drum 10,10 ' generation rotate in the same way.Just changeing in the same way or when reversing in the same way, four reels can produce in the same way and rotate as

motor

7 and 11,, grab bucket is hoisted or descending again by steel cable.Supporting that as the motor 11 motionless steel cables that hoist grab bucket is also motionless, and motor 7 rotates, open and close the steel cable generation and receive or put, produce by grab bucket and close bucket or open the motion that struggles against.When only traction electric machine 17 rotations, drg 16,16 ' declutch (in power-transfer clutch 15, the 15 ' engagement time), by drop-

gear box

12,13 can make reel 9 and 10 with respect to 9 ' with 10 ' produce relative motion, cause grab car (as shown in Figure 3) pulley the place ahead and rear steel cable one side to receive, the opposing party is put, move in orbit thereby drawing dolly, grab bucket produces parallel motion thereupon.Rotate in the same way as

motor

7 and 11, traction electric machine 17 also drops into rotation, and grab bucket can be done the motion of skew curve track.Increase power-transfer clutch 15 and 15 ' can realize that three reels stop, a reel rotates, and can carry out the replacing of steel cable easily.Its implementation method is: if the steel cable that opens and closes on the tube 9 need be changed, elder generation's holdback clutch 15 ', motor 11 stops, reel 10 and 10 ' can not rotate then,

motor

7 and 17 are started in power-transfer clutch 15 engagements, turn to and the rotating speed adjustment, can make reel 9 ' rotating speed equal zero, only reel 9 is in the rotary state that rises at a slow speed or fall.In like manner, the list that can realize other each reel only rotates.

As shown in Figure 9, when coal from hopper 18, through feeder 19, rely on gravity and feeder to give the inertia of material, when falling bulk separating tank 20, fritter and powder-material are transported through adhesive tape conveyor 21, and bulk slips into bulk bucket 22 along grizzly bar 24, bulk be stacked into a certain amount of after, transport by automobile again through fan-shaped gate 23.

The utility model is compared with background technology, and the useful effect that has is:

1) complete machine adopts underlying formula division of room, improves complete machine stability, changes grab bucket and machine Tool is repaired convenient;

2) novel four winding drum structure realizes that three reels stop, and a reel rotates, and can carry out easily steel cable and change, and changes a steel cable only 15～30 minutes, greatly alleviates labour intensity, improves the efficient of unloading a ship;

3) the bulk materials disengagement gear is installed, not only can be isolated the solid bulk smoothly, and run into the rope class, wadding net class foreign material are difficult for catching on obstruction, avoid bulk to fall and smash harbour from the high-altitude.This bulk disengagement gear does not need special power driven, and is simple and easy, energy-conservation, reliable.

Therefore, the utility model can be promoted the use of when terminal operation.

Claims

A kind of four winding drum traction grab bucket bridge type ship unloader, it comprises crane span structure, grab car, machine room, four winding drum mechanism, blanking transport establishment, feature of the present utility model is:

1) machine room [3] and four winding drum mechanism [5] are placed on lower floor's board [4];
2) in the four winding drum mechanism, traction electric machine [17] is installed between drop-gear box that hoists [12] and the switching drop-gear box [13], at the gear [14 '] of the drop-gear box that hoists [12] and the indirect clutch [15 '] of drg [16 '], at the indirect clutch [15] of the gear [14] that opens and closes drop-gear box [13] with drg [16];
3) install successively by feeder [19] in the hopper of blanking transport establishment [18] exit, and the bulk separating tank [20] of grizzly bar [24] is housed, the bulk disengagement gear that bulk hopper [22] and fan-shaped gate [23] are formed.