CN1020574C - Bucket elevator type continuous ship unloader - Google Patents
Bucket elevator type continuous ship unloader Download PDFInfo
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- CN1020574C CN1020574C CN 89104072 CN89104072A CN1020574C CN 1020574 C CN1020574 C CN 1020574C CN 89104072 CN89104072 CN 89104072 CN 89104072 A CN89104072 A CN 89104072A CN 1020574 C CN1020574 C CN 1020574C
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Abstract
The present invention relates to a bucket elevator type continuous ship unloading machine used for side shovel operation and hanging chain clearing operation. A bucket chain encloses an L-shaped area around a front and a rear end chain wheels of a horizontal frame and a chain wheel above the rear chain wheel, the degree of tightness of the bucket chain can be regulated by the movement from top to bottom of the horizontal frame corresponding to the upper chain wheel, the horizontal frame is provided with a horizontal rail, a roller of each bucket is matched with the horizontal rail when the bucket chain is tensioned, and the bucket runs by the guiding of the rail in the side shovel operation. Therefore, the vertical force which acts on the bucket and the cross-cutting force on the running direction of the bucket act on the rail, and the bucket chain only requires the strength to pull the bucket; in other words, the stiffness of the prior art to the bucket chain does not need, so the weight of the bucket chain can be reduced.
Description
The present invention relates to bucket elevator type continuous ship unloader.
The hoisting crane that unloads bulk cargos such as coal, ore or grain from the boats and ships efficiently is commonly referred to as unloading machine.This unloading machine has a grab bucket to pick up goods and with outside its year deliver from vault from cargo hold.
But in recent years, bucket elevator has been substituted this grab bucket, and unloading efficient is increased.
This bucket elevator type continuous ship unloader also has problems, and the scraper bowl side of bucket elevator promptly can be clashed into the hull bottom of up-and-down movement when removal treatment when unloading a ship the ballast thing, thereby causes the damage of hull bottom or scraper bowl.And when removal treatment, must collect by the goods that bulldozer that enters cargo hold etc. will be stayed hull bottom, could entire cargo be drawn off by bucket elevator like this.
Growing demand in view of to the unloading machine that can overcome the problems referred to above had proposed various technical schemes at the problems referred to above.
For example, among the Japanese Utility Model publication number 62-108339, disclose a kind of bucket elevator type continuous ship unloader, it can be used for carrying out common side shovel operation, also can be used for carrying out the stretched wire removal treatment.In the operation of side shovel, the bulk cargo in the cabin is scooped up by bucket elevator, the bucket elevator sidewayts running, and this moment, bucket chain was tightened with horizontal direction.In a kind of operation in back, the bulk cargo of staying hull bottom to be cleared up, bucket chain is in stretched wire shape (loose shape) so that can sponge any impact that the hull bottom up-and-down movement causes when the hull bottom goods is stayed in cleaning.In this continuous ship unloader, sprocket wheel before the front end of a pivot arm is equipped with is tightened the horizontal direction of bucket chain or is the stretched wire shape by the swing of pivot arm.And, be provided with a saddle, under saddle, can insert bucket chain, when operation, bucket chain inserts saddle, and the power that is transverse to the bucket sense of motion that therefore acts on the bucket can be accepted by saddle.
But, in above-mentioned the sort of continuous ship unloader, because saddle only accepts to act on the power that being transverse to the bucket sense of motion on the bucket in the operation of common side shovel, must be the bucket chain tension so that the goods surface behind each bucket shovel of flattening.This is that large-scale unloading captain apart from the situation of shoveling goods especially like this because uneven goods surface can make unloading unstable.This does not just only require that bucket chain will have enough rigidity with the required tension force of the assurance many fully loaded scraper bowls of pulling, and wants to make the tension of bucket portion.This just means that bucket chain is very heavy, and this is unfavorable for the vessel unloading machine with cantilever beam.In addition, when the goods that is deposited in hull bottom need be cleared up, a near scraper bowl that scoops up operation and be to be positioned at the preceding sprocket wheel that is contained in the pivot arm front end began.This does not allow sagging fully (bucket chain is bent downwardly) under its deadweight, thereby can not eliminate the hull bottom up-and-down movement and cause impact.
A kind of bucket elevator type continuous ship unloader is disclosed among the GB2205800A of British patent, has level shovel dress unit frame, be rotatably supported in before the bottom on the shovel dress unit frame sprocket wheel behind the sprocket wheel and a bottom, be rotatably supported in the upper sprocket wheel of sprocket wheel top, above-mentioned back, an annular bucket chain that surrounds L shaped zone, a series of scraper bowls on annular bucket chain, be located at the horizontal rail on the level shovel dress unit frame, be installed in the roller on each scraper bowl, and make described shovel dress unit frame with respect on the described upper sprocket wheel, mobile down device, thereby before shovel dress unit frame moves down tension, during chain between back sprocket wheel, above-mentioned rollers and horizontal link are closed operation, unloading machine is worked in normal side direction shovel dress mode, and when shovel dress unit frame moves up, roller is then thrown off with horizontal rail, makes chain be the stretched wire shape, thereby makes unloading machine can remove the loose merchandize that stays bottom of ship.But the mechanism structure that roller and horizontal rail are thrown off of this unloading machine is complicated, and horizontal rail partly is made up of rail under the last rail partial sum, and needs the device of rail part under the side travel.
An object of the present invention is to provide a kind of bucket elevator type continuous ship unloader, it does not require that bucket chain must draw very tightly when the operation of side shovel, thereby can use the lower light-duty bucket chain of rigidity.
Another object of the present invention provides a kind of bucket elevator type continuous ship unloader, and it can guarantee the abundant sag of stretched wire shape, thereby can effectively deal with the up-and-down movement of hull bottom.
A further object of the invention provides a kind of bucket elevator type continuous ship unloader, and it is simple in structure and can be easily change between side shovel mode of operation and stretched wire removal treatment mode.
For achieving the above object, bucket elevator type continuous ship unloader of the present invention comprises level shovel dress unit frame, rotatably support is in the forward and backward sprocket wheel in bottom of this shovel dress forward and backward end of frame, unit, rotatably support is at least one upper sprocket wheel of sprocket wheel top, back, annular bucket chain (seeing annular bucket chain encirclement-L shaped zone from the side) on forward and backward sprocket wheel in bottom and the upper sprocket wheel, be contained in a series of scraper bowls on the bucket chain with preset space length, and the device that moves up and down shovel dress unit frame with respect to upper sprocket wheel.This continuous ship unloader also comprises near the roller that is located at each scraper bowl part, scraper bowl is contained on the bucket chain by this roller, and horizontal rail that is located at along the bucket chain path on the shovel dress unit frame, during the linear running of bucket chain between forward and backward sprocket wheel, engage with the roller of each scraper bowl, therefore, shoveled moving downward of dress unit frame and when between forward and backward sprocket wheel, straining at bucket chain, roller be with state that horizontal rail engages under move, and when shovel dress unit frame upward movement, roller and horizontal rail are disengaged so that make bucket chain be in the stretched wire state.
Now contrast the following drawings describes in detail preferred embodiment of the present invention, and to above-mentioned purpose with other of the present invention, structure and advantage can clearer understandings like this.
Fig. 1 is the lateral plan of a continuous ship unloader, represents first embodiment of the present invention;
Fig. 2 is the lateral plan at the machine-operated key of vessel unloading shown in Figure 1 position, and scraper bowl is in side shovel operating condition among the figure;
Fig. 3 is the lateral plan at the machine-operated key of vessel unloading shown in Figure 1 position, and scraper bowl is in the removal treatment state among the figure;
Fig. 4, the situation of desired conversion process when 5 and 6 expression vessel unloading machines are changed between side shovel operation and removal treatment;
Fig. 7 looks from vessel unloading machine front portion, along the section drawing of VII-VII line of Fig. 2;
Fig. 8 is the figure similar to Fig. 7, shows just to engage with horizontal rail so that the state before carrying out the operation of side shovel at roller;
Fig. 9 is similar to Fig. 7 with 10, shows the situation of first and second modification of roller and horizontal rail respectively, and in first modification, roller is positioned at the inboard of horizontal rail; In second modification, roller is clamped between a pair of relative V-shaped groove;
Figure 11,12 and 13 is enlarged views, shows the different instances of a closure member that is arranged on the horizontal rail former rail of first embodiment opening respectively;
Figure 14 to 17 shows needed conversion process when the vessel unloading machine is changed between side shovel operation and removal treatment, these figure show second embodiment of the present invention;
Figure 18 and 19 shows conversion process required when the vessel unloading machine is changed between side shovel operation and removal treatment, these figure show the 3rd embodiment of the present invention;
Figure 20 is the front elevation at vessel unloading office key position, shows the 4th embodiment of the present invention;
Figure 21 is the front elevation of the 4th embodiment one modification shown in Figure 20.
Now contrast above-mentioned description of drawings various embodiments of the present invention.
These embodiment relate to a kind of continuous ship unloader that draws off bulk freight from cabin that is applicable to, it has the bucket elevator that is supported on a cantilever beam front end.This vessel unloading machine is large-scale unloading machine, is arranged near two sprocket shaft distance between centers of tracks on the hull bottom vertical (horizontal direction among Fig. 1), and promptly shovel dress length reaches 6.5 meters.
First embodiment of the present invention is at first described.
Now consult Fig. 1,2 and 7.The roller 2 that shape is bordering on abacus bead is installed on a pair of carriage 3, and carriage 3 is arranged on the upper surface of scraper bowl 1 relative both sides.Rail 4 roughly is being slightly smaller than vertically setting on the segment distance of forward and backward sprocket shaft distance between centers of tracks.Rail 4 is installed on the relative two sides of level shovel dress unit frame 10, and its installation site is corresponding to the track of roller 2 horizontal rollings.Each scraper bowl 1 all is fixed on the chain link of every bucket chain 5 by carriage 3.Preceding sprocket wheel 6A is supported on the front end (left end among Fig. 1) of level shovel dress unit frame 10, and back sprocket wheel 6B is supported on the rear end of level shovel dress unit frame 10.As shown in Figure 1, sprocket wheel 6C is fixed on the top of back sprocket wheel 6B.When looking from vessel unloading pusher side face, sprocket wheel 6A, being provided with of 6B and 6C formed one L shaped.One fluid cylinder 7 moves up and down level shovel dress unit frame 10 by slipper 9, and slipper 9 is led by a vertical rack 7A, and vertical rack 7A hangs down from the front end of the parallel linkage arm 20 of vessel unloading machine.Label 8 is represented hull bottom, and label 11 is represented goods, and label 21 is represented guide wheel.
Every rail 4 all has the guide groove in a V-arrangement cross section.Guide groove has inclined- plane 4A and 4B, engages with the upper and lower inclined-plane 2A and the 2B that form on the roller 2 respectively.Rail 4 also has a guide face 4C under the V-arrangement guide groove, the ramp 2A of roller 2 is along rolling across on the guide face 4C.As shown in figure 10, guide face 4C also can form a horizontal surface 4C ', and the horizontal upper end face of roller 2 engages.Respectively lead a mouthful 4D(in vertical two ends (the left and right two ends among Fig. 1) of rail 4 and see Fig. 3), lead mouthful 4D and expand gradually and form by inclined- plane 4A and 4B.
The present embodiment of She Zhiing is worked in the following manner like this.When the common side shovel operation of carrying out shown in Fig. 1 or 2, scraper bowl 1 rotates with following state, and its roller 2 is by rail 4 guiding, the laying of rail 4 vertical equities, and scraper bowl is then along side travel.At this moment, act on the scraper bowl 1, be transverse to the power of scraper bowl moving direction (horizontal direction among Fig. 7) and vertical power and accept by rail 4.In other words, scraper bowl 1 is sagging from rail 4 when the shovel dress.Therefore, as long as desired bucket chain 5 has the rigidity that can spur scraper bowl 1.This also makes scraper bowl 1 be flattened in the goods surface of being adorned by shovel, thereby makes unloading operation steady, and guarantees the actv. unloading operation.
When the goods 11 in being stored in the cabin reduced, the vessel unloading machine converted following removal treatment to.Bucket chain 5 is stopped operating, and level shovel dress unit frame 10 is mentioned because of the contraction of fluid cylinder 7 then.Because sprocket wheel 6C fixes, level shovel dress unit frame 10 mention the distance that has reduced between sprocket wheel 6B and the sprocket wheel 6C, therefore, make every to be positioned at as shown in Figure 4 before on the sprocket wheel 6A and under the part of bucket chain 5 loose.Then, as shown in Figure 5, rotate bucket chain 5, this make thereafter roller 2 continue to move and with rail 4 on the V-arrangement guide groove 4A that forms and 4B break away from and cooperate, make bucket chain 5 be stretched wire shape shown in Figure 3 at last.
When the bucket chain 5 that is the stretched wire shape was rotated, bucket 1 contact so that shovel to adorn with hull bottom 8 and promptly clears up the goods that remains on the hull bottom 8.During removal treatment, the up-and-down movement of hull bottom 8 is absorbed by sagging bucket chain 5.Thereby avoided the damage of scraper bowl 1 and/or hull bottom 8.
The vessel unloading machine is changed back common side shovel mode of operation from stretched wire shape shown in Figure 3 in the following manner.At first stop the rotation of bucket chain 5, level shovel dress unit frame 10 descends because of the elongation of fluid cylinder 7 then.This is stretched bucket chain 5.Then, the ramp 2A of roller 2 begins to contact with the guide face 4C of rail 4, as shown in Figure 8.Then, rotate bucket chain 5, this makes roller 2 engage with rail 4 in succession at mouthful 4D place that leads that rail 4 fore-ends form, thereby makes the vessel unloading machine change back common side shovel mode of operation.
In the present embodiment, use is the roller with abacus bead shape.But also desirable any other shape of roller and rail acts on power vertical and that be transverse to the bucket motions direction on the scraper bowl as long as they can guide the motion of scraper bowl and acceptance.
In the present embodiment, rail 4 forms on the outside of level shovel dress unit frame 10.But rail also can and form in the inboard of level shovel dress unit frame 10, at this moment as Fig. 9 and shown in Figure 10, guide groove be mutual towards.In example shown in Figure 10, the diameter that should be noted that roller will be slightly smaller than the distance between two guide grooves.
In the present embodiment, owing between side shovel operational period, guided by rail during the scraper bowl operation, rail accepts to act on the power vertical and that be transverse to the bucket motions direction on the scraper bowl.Therefore, bucket chain only need spur scraper bowl, and bucket chain need not to resemble rigidity so strong in the prior art, and is so heavy.
When the vessel unloading machine is changed between side shovel mode of operation and removal treatment mode, roller can be at first by promoting or reducing rail (i.e. reduction level shovel is adorned the unit frame) and rotate bucket chain then and throw off with the joint of rail or with rail and engage.Therefore, conversion process is very convenient, does not need special-purpose member, and this makes whole apparatus structure simple.In addition, can provide sufficient sag by the stretched wire state, this just makes the vessel unloading machine can deal with the up-and-down movement of hull bottom effectively.
In the present invention, at the front end of every rail 4 with lead a mouthful 4D place and can be provided with a closure member 11.
First example of closure member 11 is installed on the level shovel dress unit frame 10 by bolt 13 as shown in figure 11.In the operation of common side shovel, this closure member 11 is removed.
Second example of closure member 11 is installed in the leading section of level shovel dress unit frame 10 as shown in figure 12, can be around pin 14 swings.When needs carried out the operation of side shovel, this closure member 11 was in a position with the direction swing of arrow among Figure 12.During removal treatment, 11 of closure members are in the b position.Be in the roller 2 that the closure member 11 of b position contacted with closure member 11 and put the C position, thereby roller 2 is guided downwards.
As shown in figure 13, closure member 11 is driven around pivot 17 swings by cylinder 15.Cylinder 15 links to each other with the joining part of closure member 11.This swing is to carry out under the operator in handling the position controls.
The setting of closure member 11 makes removal treatment stable.Specifically, when preparing to carry out removal treatment, level shovel dress unit frame 10 is mentioned because of fluid cylinder shrinks, thereby as shown in Figure 4, before being positioned on the sprocket wheel 6A and under the part of every bucket chain loose.Then, with bolt 13 closure member 11 is installed on the level shovel dress unit frame 10 with confined bed mouth 4D as shown in figure 11, perhaps closure member 11 hangings before leading mouthful 4D, be positioned at the b position, as shown in figure 12.The another kind of practice is as shown in figure 13, to handle cylinder 15 and make closure member 11 confined bed mouth 4D.Rotate bucket chain 5 then, this makes roller 2 continue to move and no longer is engaged in the V-shaped groove on the rail 4, makes bucket chain 5 be as shown in the figure stretched wire shape.Engaging of roller and rail all got rid of in any setting in the aforementioned closure member, promptly got rid of the leading section of roller bump rail, in removal treatment, during the excessive upward movement of boats and ships, perhaps originally this phenomenon can take place when sag is not enough.Specifically, being provided with of closure member can prevent owing to roller produces excessive power with engaging of rail fore-end, also can prevent the disengagement of roller and rail fore-end and the excess impact that causes.
Contrast Figure 14 to 17 introduces second embodiment of the present invention below.In second embodiment, be arranged on the center O of sprocket wheel 6A before the leading mouthful 4D and be positioned as close to of fore-end of every rail 4, therefore, partition distance L only each other, be arranged on the rail rear end part lead mouthful 4D ' then as much as possible away from the center O of back sprocket wheel 6B ', partition distance L '.Pitch and the half pitch that is equivalent to bucket chain 5 adjusted in inventor's evidence, the value of L ' and L respectively, and effect is best.
In second embodiment, owing to be arranged on the center O that mouthful 4D is positioned as close to preceding sprocket wheel 6A of leading of every rail 4 fore-ends, the distance L of only being separated by, therefore, roller 2 is not thrown off from rail 4 in the operation of side shovel, otherwise, owing to the contraction that cylinder 7 is caused by the hull bottom upward movement, above-mentioned disengagement originally can take place.
When the cargo quantity in being stored in the cabin reduced, the vessel unloading machine converted the removal treatment mode in the following manner to.At first stop the rotation of bucket chain 5, then owing to level shovel dress unit frame 10 is mentioned in the contraction of fluid cylinder 7.Like this because sprocket wheel 6C fixes, so the distance between sprocket wheel 6B and the 6C reduce, as shown in Figure 3, before this just makes and is positioned on the sprocket wheel 6A and under the part of every bucket chain 5 loose.Then, as shown in figure 14, make bucket chain 5 backward rotation, this just makes roller throw off from rail 4 as shown in figure 15, makes bucket chain 5 be stretched wire shape shown in Figure 3.
Since be arranged on every rail 4 rear end parts lead mouthful 4D ' as much as possible away from the center O of back sprocket wheel 6B ', at a distance of L ', thus roller 2 can throw off from rail 4, even, also can make bucket chain 5 be the stretched wire shape so that cylinder 7 shrinks a bit of distance.If L ' is very little, then cylinder 7 must just can make roller 2 throw off from rail 4 by a big segment distance.When cylinder 7 shrank a big segment distance, the upper surface of level shovel dress unit frame 10 and the gap between the bucket chain 5 reduced, and therefore make interference mutually between these parts.
Then rotate forward when being the bucket chain 5 of stretched wire shape, scraper bowl 1 contacts with hull bottom 8 so that shovel the goods that the i.e. cleaning of dress is deposited in hull bottom.During this removal treatment, the up-and-down movement of hull bottom 8 is absorbed by sagging bucket chain 5, thereby has avoided the damage of scraper bowl 1 and/or hull bottom 8.
The vessel unloading machine is changed back common side shovel mode of operation shown in Figure 2 from removal treatment mode shown in Figure 3 in the following manner.At first, stop the rotation of bucket chain 5, uphold fluid cylinder 7 then, fall level shovel dress unit frame 10 so that make bucket chain 5 tensions.The ramp 2A of roller 2 is contacted with the guide face 4C of rail 4.Then, rotate bucket chain 5 forward, this makes roller 2 engage rail 4 near preceding sprocket wheel 6A as shown in Figure 6, thereby the vessel unloading machine change back common side and shovel mode of operation, as shown in figure 17.
In this embodiment, the center of sprocket wheel before the fore-end of every rail is as close as possible, the rear end part of rail is then as much as possible away from the center of back sprocket wheel.Therefore, the vessel unloading machine can easily be changed between side shovel mode of operation and removal treatment mode, and roller is not thrown off from rail in the operation of side shovel.And, because the vessel unloading machine just can convert the removal treatment mode to by making the level shovel dress unit frame a bit of distance that moves up, so can avoid before bucket chain and level shovel dress unit frame upper surface, producing interference.
Contrast Figure 18 and 19 describes the 3rd embodiment of the present invention below.
In this embodiment, what be arranged at every rail 4 fore-ends leads mouthful 4D as far as possible away from the center O of each sprocket wheel 6A, at a distance of be L, and be arranged on the center O of leading as close as possible each the back sprocket wheel 6B of mouthful 4D ' of the rear end part of rail ', be L ' apart.In other words, before the fore-end of every rail 4 and each distance between the center O of sprocket wheel 6A greater than the center O of rear end part and each back sprocket wheel 6B of every rail ' between distance.The inventor tests confirmation, and the value of L and L ' is adjusted to pitch and the half pitch that is equivalent to bucket chain 5 respectively, and effect is best.
The work of the vessel unloading machine of arranging is like this described now.In the operation of common side shovel, the state that scraper bowl 1 rotates is, rail 4 guiding that its roller 2 vertically is provided with along level are the same with first embodiment, along laterally to mobile scraper bowl.
When the goods 11 in being stored in the cabin reduced, the vessel unloading machine converted the removal treatment mode in the following manner to.At first stop the rotation of bucket chain 5, then because level shovel dress unit frame 10 is mentioned in the contraction of fluid cylinder 7.Because sprocket wheel 6C fixes, level shovel dress unit frame 10 mention the distance that has reduced between sprocket wheel 6B and the sprocket wheel 6C, therefore, as shown in Figure 3, before being positioned on the sprocket wheel 6A and under the part of every bucket chain 5 become loose.
Owing to the distance L minimum that mouthful 4D leaves the center O of each preceding sprocket wheel 6A of leading of the front end that is arranged on every rail 4, even 7 of fluid cylinders shrink a bit of distances, bucket chain 5 also can be the stretched wire shape.At this moment, the degree that the upper surface of level shovel dress unit frame 10 and the distance h between the bucket chain 5 reduce is little, therefore can avoid the interference between level shovel dress unit frame 10 and the bucket chain 5.
Rotate bucket chain 5 then forward, this just makes roller throw off from rail 4, thereby makes bucket chain 5 be the stretched wire shape.
The vessel unloading machine from the process that stretched wire shape shown in Figure 3 converts side shovel mode of operation shown in Figure 2 to is: at first stop the rotation of bucket chain 5, the elongation owing to fluid cylinder 7 reduces level shovel dress unit frame 10 then.This stretches bucket chain 5, therefore, the ramp 2A of roller 2 is contacted with the guide face 4C of rail 4.The backward rotation bucket chain 5 then.Since be arranged on rail 4 rear end parts lead the center O that mouthful 4D ' is positioned as close to back sprocket wheel 6B ', only at a distance of L ', therefore, the backward rotation of bucket chain 5 make roller 2 one after the other and successfully with back sprocket wheel 6B near rail engages, thereby make the vessel unloading machine change back common side to shovel mode of operation.
In this embodiment, away from the center of sprocket wheel before each, the rear end part of rail then is positioned as close to the center of each back sprocket wheel to the fore-end of every rail as far as possible.Therefore, the vessel unloading machine can be changed between common side shovel mode of operation and removal treatment mode at an easy rate.And, because the fore-end of rail is as much as possible away from the center of preceding sprocket wheel, level shovel dress unit frame is as long as upwards move a bit of distance, and the vessel unloading machine just can convert the removal treatment mode to, thereby avoids the interference between bucket chain and the level shovel dress unit frame upper surface.And can avoid in removal treatment owing to bucket chain is mentioned interference between the scraper bowl of the roller that causes and rail or roller.
And because the rear end part of every rail is positioned as close to the center of back sprocket wheel, roller engages with rail and does not make bucket chain very tight, thereby avoids the damage of pair roller and rail.
Contrast Fig. 1 below, 2,3 and 20 describe the 4th embodiment of the present invention.In this embodiment, horizontal rail 4 in the length that vertically is provided with less than the distance between forward and backward sprocket wheel axis.And, forming respectively in the front and back end of every rail and to lead mouthful 4D and 4D ', its situation is identical with other embodiment.This embodiment is characterised in that horizontal rail 4 can be assemblied in the guide 17 with longitudinal sliding.Each guide all is fixed on the outside of level shovel dress unit frame 10.Upper surface every horizontal rail 4 outer rims is equipped with a short tooth bar 19, this tooth bar 19 and a miniature gears 12 engagements.Miniature gears 12 is by motor 13 forward and reverse drives.Motor 13 is installed on the lateral ribs 10a of level shovel dress unit frame 10.The power of motor 13 is delivered to miniature gears 12 by a rotating shaft 15 by bearing 14 supportings.
The work of this embodiment is described below.In the operation of common side shovel, scraper bowl 1 is by roller 2 level runs by horizontal rail 4 guiding, so that the goods during shovel is shipped as illustrated in fig. 1 and 2.After the sprocket wheel 6B, they move vertically upward, thereby goods is transported to a belt conveyor after scraper bowl 1 passes through.Because along cross motion, goods 11 can successfully be sent by continuous scraper bowl 1 dress whole this bucket elevator type continuous ship unloader in the operation of common side shovel.
When the goods in the cabin 11 reduced, the vessel unloading machine converted the removal treatment mode in the following manner to.At first stop the rotation of bucket chain 5, fluid cylinder 7 is shunk, mention level shovel dress unit frame 10, thereby as shown in Figure 3, the sprocket wheel 6C(that reduces sprocket wheel 6B and be positioned on the sprocket wheel 6B does not draw) between distance, thereby loose every be positioned at before on the sprocket wheel 6A and under part bucket chain 5.Then, rotate bucket chain 5 forward, this makes roller 2 thereafter continue to move and mismatch among the V- arrangement guide groove 4A and 4B of formation on the rail 4, thereby makes bucket chain 5 be the stretched wire shape.
Rotate the bucket chain 5 that is the stretched wire shape forward, this moment, scraper bowl 1 contacted with hull bottom 8, can carry out removal treatment.In this removal treatment, the up-and-down movement of hull bottom 8 is absorbed by sagging bucket chain 5, thereby avoids the damage of scraper bowl 1 and/or hull bottom 8.
The vessel unloading machine can be changed back common side shovel mode of operation in the following manner.At first stop the rotation of bucket chain 5, extend fluid cylinder 7 then, level shovel dress unit frame 10 is fallen.This stretches bucket chain 5.Follow backward rotation bucket chain 5, this makes roller 2 one after the other locate to engage with horizontal rail 4 at mouthful 4D ' that leads that the rail rear end part forms.
The adjustment operation of horizontal rail 4 is described now.In the operation of common side shovel, horizontal rail 4 is positioned as close to preceding sprocket wheel 6A, the center of sprocket wheel 6A before leading mouthful of 4D of horizontal rail 4 aims at.This realizes by the following practice: by motor 13 horizontal rail 4 is slided in guide 17, the driving force of motor 13 is by rotating shaft 15, and miniature gears 12 and tooth bar 19 are delivered to horizontal rail 4.Therefore, even bucket chain 5 is pretended to fluff in the industry at shovel, roller 2 also can carry out the shovel dress of success.
In removal treatment, horizontal rail 4 is positioned at the place near back sprocket wheel 6B as far as possible, and leading mouthful of 4D of horizontal rail 4 is then as much as possible away from preceding sprocket wheel 6A.Therefore can eliminate roller 4 by the possibility of horizontal rail 4 constraints.
When the vessel unloading machine when common side shovel mode of operation converts the removal treatment mode to, make horizontal rail 4 near back sprocket wheel 6B as far as possible, rotate bucket chain 5 then forward.Therefore, roller 2 is not subjected to horizontal rail 4 constraints, and bucket chain 5 promptly forms the stretched wire shape easily under the situation of a bit of distance of level shovel dress unit frame 10 rises.
When the vessel unloading machine when the removal treatment mode converts common side shovel mode of operation to, make sprocket wheel 6B behind horizontal rail 4 convergences, the backward rotation bucket chain 5 then.
And the vessel unloading machine also can convert the removal treatment mode to, its process from common side shovel mode of operation: lead the center of mouthful 4D ' away from back sprocket wheel 6B after making horizontal rail 4 as far as possible, the backward rotation bucket chain 5 then.
And the vessel unloading machine also can be changed back common side shovel mode of operation from the removal treatment mode, and its process is: the leading mouthful of 4D that makes horizontal rail 4 be the center of sprocket wheel 6A before the convergence as much as possible, rotates bucket chain 5 then forward.
In this embodiment, the roller that is arranged on scraper bowl upper end fits into horizontal rail, makes horizontal rail longitudinal sliding motion, and therefore, they can be shifted to or away from forward and backward sprocket wheel.This just can guarantee that bucket elevator type continuous ship unloader can successfully carry out common side shovel operation and removal treatment.
More particularly, in the operation of common side shovel, can avoid roller impact levels rail leading mouthful, can prevent that also roller from throwing off from horizontal rail.In removal treatment, can avoid the leading mouth of roller impact levels rail, can prevent that also roller is subjected to the constraint of horizontal rail, otherwise just can not carry out removal treatment.And the vessel unloading machine can successfully be changed between common side shovel mode of operation and removal treatment mode.
Claims (19)
1, in bucket elevator type vessel unloading machine, comprise: level shovel dress unit frame, rotatably support is before described level shovel dress unit frame respectively, sprocket wheel behind a sprocket wheel and the bottom before the bottom of rear end part, at least one is rotatably supported in the top sprocket wheel of sprocket wheel top, described back, article one, before described, back sprocket wheel and described top sprocket wheel and see the annular bucket chain of putting a L shaped zone on the spot from side direction, a series ofly be installed on scraper bowl on the described bucket chain with preset space length, and the device that moves up and down described shovel dress unit frame with respect to described top sprocket wheel, a roller that is installed on the contiguous position of each scraper bowl, be installed on the described bucket chain by the described scraper bowl of roller, horizontal rail is arranged on along described bucket chain and runs on the straight line path of described front and back sprocket wheel, it engages with the described roller of each described scraper bowl, when described bucket chain by the dress downward motion of unit frame of described shovel and before described, when straining between back sprocket wheel, described roller with described horizontal rail engagement state under move, and described roller is thrown off so that make described bucket chain be the stretched wire shape from described horizontal rail by the upward movement of described shovel dress unit frame, it is characterized in that: the length of described horizontal rail less than described bottom before the distance between the sprocket wheel axis behind sprocket wheel and the bottom, and before its position makes horizontal rail, at least one end is separating a predetermined distance with near the centre of sprocket this end in the rear end on the direction of another sprocket wheel.
2, according to the described continuous ship unloader of claim 1, it is characterized in that: described roller has the shape of point like abacus bead, and described horizontal rail has a V-shaped groove corresponding to described abacus bead shape.
3, according to the described continuous ship unloader of claim 2, it is characterized in that: the bottom surface of described horizontal rail be bevelled in case form one with the described abacus bead inclined-plane that matches, surface in shape.
4, according to claim 1, one of 2 and 3 described continuous ship unloaders, it is characterized in that: each described scraper bowl has two rollers, each roller of its each side, and described level shovel dress unit frame has two horizontal rails, and every described horizontal rail is positioned at the inboard of relevant roller.
5, according to claim 1, one of 2 and 3 described continuous ship unloaders, it is characterized in that: each described scraper bowl has two rollers, each roller of its every side, and described level shovel dress unit frame has two horizontal rails, and every described horizontal rail is positioned at the outside of relevant roller.
6, according to the described continuous ship unloader of one of claim 1,2 and 3, it is characterized in that: each scraper bowl heart therein has a roller, and described level shovel dress unit frame has two horizontal rails and gripping described roller.
7, according to the described continuous ship unloader of claim 1, it is characterized in that: described horizontal rail has a groove, and described roller is engaged in this groove, and this groove of the vertical front and back ends of described horizontal rail part expand one leading mouthful and after lead mouth.
8, according to the described continuous ship unloader of claim 7, it is characterized in that: comprise that a closure member is to seal leading mouthful of end of described groove.
9, according to the described continuous ship unloader of claim 8, it is characterized in that: described closure member is contained on the described level shovel dress unit frame removably.
10, according to the described continuous ship unloader of claim 8, it is characterized in that: described closure member is a plate that is installed in the fore-end of described level shovel dress unit frame swingably, it sagging described lead mouthful end before.
11, according to the described continuous ship unloader of claim 8, it is characterized in that: described closure member is installed in the fore-end of described level shovel dress unit frame swingably, and described closure member is opened or sealed leading mouthful of described groove by the action of a cylinder.
12, according to the described continuous ship unloader of claim 1, it is characterized in that: described bucket chain can be reversed rotation.
13, according to the described continuous ship unloader of claim 12, it is characterized in that: the front end of described horizontal rail leaves a preset distance from the center back of described preceding sprocket wheel, and the rear end of described horizontal rail is left a preset distance forward from the center of described back sprocket wheel, and previous distance is less than a back distance.
14, according to the described continuous ship unloader of claim 13, it is characterized in that: described previous distance is approximately the half pitch of described bucket chain, and a described back distance is approximately a pitch of described bucket chain.
15, according to the described continuous ship unloader of claim 12, it is characterized in that: the front end of described horizontal rail leaves a preset distance from the center back of described preceding sprocket wheel, and the rear end of described horizontal rail is left a preset distance forward from described back sprocket wheel, and described previous distance is greater than a described back distance.
16, according to the described continuous ship unloader of claim 15, it is characterized in that: described previous distance is approximately a pitch of described bucket chain, and a described back distance is approximately the half pitch of described bucket chain.
17, according to the described continuous ship unloader of claim 12, it is characterized in that: described horizontal rail is shorter than the distance between the described forward and backward sprocket wheel axis, and can be in longitudinal sliding motion.
18, according to the described continuous ship unloader of claim 17, it is characterized in that: on described horizontal rail is vertical a tooth bar is housed, a miniature gears is meshed with described tooth bar, and described miniature gears is by the forward and reverse driving of a motor.
19, according to the described continuous ship unloader of claim 17, it is characterized in that: a fluid cylinder makes described horizontal rail longitudinal sliding motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104072 CN1020574C (en) | 1989-06-09 | 1989-06-09 | Bucket elevator type continuous ship unloader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104072 CN1020574C (en) | 1989-06-09 | 1989-06-09 | Bucket elevator type continuous ship unloader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1047836A CN1047836A (en) | 1990-12-19 |
| CN1020574C true CN1020574C (en) | 1993-05-12 |
Family
ID=4855413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89104072 Expired - Fee Related CN1020574C (en) | 1989-06-09 | 1989-06-09 | Bucket elevator type continuous ship unloader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1020574C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200905B (en) * | 2006-12-16 | 2011-09-14 | 平顶山煤业(集团)有限责任公司 | Sump silt cleaner |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5944148B2 (en) * | 2011-12-01 | 2016-07-05 | 住友重機械搬送システム株式会社 | Continuous unloader |
| CN103183241A (en) * | 2011-12-28 | 2013-07-03 | 上海振华重工(集团)股份有限公司 | Excavation taking head for chain buckettype continuous ship unloader |
| CN103449204B (en) * | 2013-08-27 | 2016-03-02 | 潍坊汇一重工机械设备有限公司 | A kind of bucket continuous ship unloader |
| JP6284753B2 (en) * | 2013-11-27 | 2018-02-28 | 住友重機械工業株式会社 | Continuous unloader |
-
1989
- 1989-06-09 CN CN 89104072 patent/CN1020574C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200905B (en) * | 2006-12-16 | 2011-09-14 | 平顶山煤业(集团)有限责任公司 | Sump silt cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1047836A (en) | 1990-12-19 |
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