CN202944984U - Bulk-cargo grab bucket with high grab ratio - Google Patents
Bulk-cargo grab bucket with high grab ratio Download PDFInfo
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- CN202944984U CN202944984U CN 201220701127 CN201220701127U CN202944984U CN 202944984 U CN202944984 U CN 202944984U CN 201220701127 CN201220701127 CN 201220701127 CN 201220701127 U CN201220701127 U CN 201220701127U CN 202944984 U CN202944984 U CN 202944984U
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Abstract
The utility model discloses a bulk-cargo grab bucket with a high grab ratio. The bulk-cargo grab bucket comprises two bucket bodies and two main reinforcements, wherein the bucket bodies are symmetrically arranged; the two main ribs are crossed on a hinged point and fixedly connected; the bulk-cargo grab bucket further comprises a rope guide rack, a pair of movable slide wheels, a pair of bucket opening ropes and a pair of bucket closing ropes, wherein the rope guide rack is fixedly connected with the two main ribs at the hinged point; the pair of the movable slide wheels are arranged in the corresponding bucket bodies and fixedly connected with supporting rods in the corresponding bucket bodies; the first ends of the pair of the bucket opening ropes are connected with an outer lifting rope of a crane, and the second ends of the pair of the bucket opening ropes get across the corresponding movable slide wheels, respectively and are connected with the upper parts of the corresponding main ribs; the first ends of the pair of the bucket opening ropes are connected with an outer opening-closing rope of the crane; and the second ends of the pair of the bucket closing ropes are wound by a plurality of rings along the two external common tangents of the pair of the movable slide wheels, respectively, and are connected with the corresponding bucket bodies at the corresponding sides. The bulk-cargo grab bucket with the high grab ratio disclosed by the utility model has an oversized grab ratio, is capable of greatly reducing the invalid load of the grab bucket, light in self-weight, high in structural strength and capable of greatly saving the energy resources consumed by overcoming the weight of the grab bucket, thereby greatly improving the unloading efficiency.
Description
Technical field
The utility model relates to a kind of bulk goods grab bucket instrument of unloading a ship, and particularly a kind of high crawl is grabbed bucket than bulk goods.
Background technology
Grab bucket is the important picking instrument that grasps goods, is widely used in the harbour handling operation, particularly is applied to grasp the operation field of bulk goods, as coal handling, and ore loading and unloading etc.; Simultaneously, grab bucket also can be used for the power tool that bulk goods grain is unloaded a ship.
In prior art, grab bucket is divided into loading and unloading according to purposes and uses grab bucket and salvaging or desilting with grabbing bucket, and loading and unloading are little with the hoisting capacity of grabbing bucket: between general 5 to 80 tons; Desilting is also little with the grab bucket hoisting capacity, is mainly used in clearing up navigation channel mud; And the hoisting capacity of loading and unloading grab bucket is relatively large, because unload a ship, certain operating efficiency need to be arranged.At present, the grab bucket of largest domestic crawl ratio crawl is than being 1:2.0, and grab bucket crawl in the world is than also on equal rank, but along with the development of boats and ships and shipping industry, it is trend that boats and ships maximize, and maritime industry is also along with to large scale development.Therefore, in the bulk handling field, existing grab bucket crawl is than low, and operating efficiency is low, can not adapt to the trend that boats and ships maximize, and energy consumption is serious, has restricted further developing of bulk handling.
Existing grab bucket mainly contains two large classes: long arm-tie type grab bucket and scissors grab, and long arm-tie type grab bucket comprises long strut, bucket body, and head etc.The grab bucket of this form, its grasp force is larger, and the structure stress form is good, uses more extensively, and long Jackstay type is mostly adopted in grab bucket, the large-tonnage grab bucket long Jackstay type of employing mostly particularly, grasp force is larger, and stress form is good, has guaranteed the stability of structure.And scissors grab is due to the version relative complex, uses at present lessly, in the situation that equal hoisting capacity, the scissors grab deadweight is lighter, and crawl is than high.Grab bucket at present adopts long arm-tie type grab bucket to carry out ship-discharging operation usually, particularly bulk goods grab bucket, ship-discharging operation is to liking bulge carrier, need to provide huge crawl recently to unload bulge carrier, long strut grab bucket crawl just can not be high again after acquiring a certain degree than certain restriction is arranged, the maximum crawl of at present long strut grab bucket is than accomplishing 1:2.0, improve crawl than very difficult, this need to change the pattern of grab bucket again, could further improve the crawl ratio of grab bucket; And scissors grab is simple in structure, and the crawl amount is large, but structural strength is relatively large, how to improve crawl than and guarantee again the safety of this body structure of grab bucket, must guarantee large crawl than under this body structure of grab bucket can bearing load impact.
Along with large-scale Logistics Equipment technology develops rapidly to maximization, high-technicalization direction, the bulk goods grab bucket is also to maximization, high efficiency development, to adapt to the needs of bulk shipping development situation, development of new techniques.Existing bulk goods grab bucket schedule work reveals following features: first: the grab bucket crawl is than increasing; Second: the grab bucket work cycle is more and more frequent; The 3rd: the grab bucket hoisting capacity is increasing; The 4th: the grab bucket operating efficiency is high, and requirement can unloaded at a high speed bulge carrier; The 5th, to grab bucket safe, grab bucket not only will bear large hoisting capacity, and will output grasp material times over the grasp force of conducting oneself with dignity of grabbing bucket when crawl, realizes ship-discharging operation.Therefore, grab bucket improves crawl and requires than just, the grab bucket deadweight is as far as possible light, simultaneously must satisfy structural strength high, provide load large, stability is safe, and novel grab bucket must satisfied under above requirement condition, conduct oneself with dignity light as much as possible, reduce the energy consumption of invalid load, improve the commercial efficiency of grab bucket.
The utility model content
The purpose of this utility model is to provide a kind of high crawl and grabs bucket than bulk goods, not only grasps than super large, greatly reduces the invalid load of grab bucket; And it is high from heavy and light, structural strength, has greatly saved to overcome the energy that the grab bucket deadweight consumes, thereby has greatly improved the efficient of unloading a ship.
In order to realize above purpose, the utility model is achieved through the following technical solutions:
A kind of high crawl is grabbed bucket than bulk goods, comprises the two symmetrically arranged bucket bodies of lobe, and described bucket body comprises two blocks of bucket body side plates, bucket body base plate and is arranged on wherein cramp bar; Correspondence supports two main muscle of two lobe bucket bodies respectively, and described two main muscle intersect at hinge and captive joint, and grab bucket is done circular motion around this hinge, also comprises:
Rope guide rack, described rope guide rack and two main muscle are captiveed joint at the hinge place;
A pair of movable pulley, described movable pulley be arranged in corresponding bucket body and with corresponding bucket body in the cramp bar captive joint;
One splits the bucket cable, described one split the bucket cable corresponding one by one with two lobe bucket bodies and main muscle, one first end of splitting the bucket cable is connected with the cable that hoists of the hoisting crane of outside respectively, and it is connected that its second end is walked around respectively the top of its corresponding movable pulley and the main muscle corresponding with it;
A pair of closed bucket rope cable, described a pair of closed bucket rope cable is corresponding one by one with two lobe bucket bodies, the first end of a pair of closed bucket rope cable is connected with the switching cable of the hoisting crane of outside, and after its second end is wound around some circles along two outside common tangents of a pair of movable pulley respectively, the bucket body corresponding with its place one side is connected.
Also comprise: a pair of angle pulley, described a pair of angle pulley is corresponding one by one with a pair of closed bucket rope cable, and the closed bucket rope cable commutates through angle pulley, and the starting point of two outside common tangents of a pair of movable pulley of its winding is on the movable pulley of opposite side bucket body.
Also comprise: four support roller devices, described four support roller devices are arranged on rope guide rack, and each support roller device correspondence is one by one held one and is opened bucket cable or closed bucket rope cable.
Described closed bucket rope cable is 2.5 along the number of turns of two outside common tangents windings of a pair of movable pulley.
The material of described bucket body is alloy steel.
Described bucket body also comprises: cutting edge, described cutting edge and bucket body are welded to connect.
The material of described cutting edge is high strength steel.
Described hinge place also is provided with wear-resisting steel bushing.
It is described that to open bucket cable and closed bucket rope cable be the steel wire cable.
The utility model compared with prior art has the following advantages:
1, not only grasp than super large, reach 1:3.0, greatly reduce the invalid load of grab bucket;
2, high from heavy and light, structural strength, greatly saved and overcome the energy that the grab bucket deadweight consumes, thereby greatly improved the efficient of unloading a ship.
Description of drawings
Overall structure schematic diagram when Fig. 1 is a kind of high crawl of the utility model than bulk goods grab bucket closed;
Overall structure schematic diagram when Fig. 2 is a kind of high crawl of the utility model than the opening of bulk goods grab bucket;
Fig. 3 is that a kind of high crawl of the utility model is than the bucket body structural representation of bulk goods grab bucket;
Fig. 4 is that a kind of high crawl of the utility model is than movable pulley schematic diagram in the bucket body of bulk goods grab bucket;
Fig. 5 is that a kind of high crawl of the utility model struggles against than opening of bulk goods grab bucket and the closed bucket rope cable is wound around schematic diagram;
Fig. 6 is that a kind of high crawl of the utility model is than the rope guide rack structural representation of bulk goods grab bucket;
Fig. 7 is that a kind of high crawl of the utility model is than the left bucket body structural representation of bulk goods grab bucket.
The specific embodiment
Below in conjunction with accompanying drawing, by describing a better specific embodiment in detail, the utility model is further elaborated.
As shown in Fig. 1 ~ 7, a kind of high crawl is grabbed bucket than bulk goods, comprises the two symmetrically arranged bucket bodies 11 of lobe, and bucket body 11 comprises two blocks of bucket body side plates 111, bucket body base plate 112 and is arranged on wherein cramp bar, the material selection alloy steel of bucket body 11; Corresponding 12, two main muscle 12 of two main muscle that support two lobe bucket bodies 11 intersect at hinge 13 and captive joint respectively, and grab bucket is done circular motion around this hinge 13, also comprises: rope guide rack 5, a pair of movable pulley 22, are split bucket cable 3, a pair of closed bucket rope cable 4.wherein, rope guide rack 5 and two main muscle 12 are captiveed joint at hinge 13 places, movable pulley 22 be arranged in corresponding bucket body 11 and with corresponding bucket body 11 in the cramp bar captive joint, one to split bucket cable 3 corresponding one by one with two lobe bucket bodies 11 and main muscle 12, and a first end of splitting the cable 3 that struggles against is connected with the cable that hoists of the hoisting crane of outside respectively, and it is connected that its second end is walked around respectively the top of its corresponding movable pulley 22 and the main muscle 12 corresponding with it, a pair of closed bucket rope cable 4 is corresponding one by one with two lobe bucket bodies 11, the first end of a pair of closed bucket rope cable 4 is connected with the switching cable of the hoisting crane of outside, after its second end is wound around some circles along two outside common tangents of a pair of movable pulley 22 respectively, the bucket body 11 corresponding with its place one side is connected, in the present embodiment, closed bucket rope cable 4 is 2.5 along the number of turns of two outside common tangents windings of a pair of movable pulley 22, by the pulley block ratio amplification, pulley block system provides the pulley increase multiplying factor of 2.5 times by the wirerope-winding mode, the pulley multiplying power arranges rationally, can make the new-type grab bucket crawl of the utility model than larger, the experiment proved that, can reach crawl and compare 1:3.0, greatly improved the efficient of unloading a ship.In the present embodiment, open bucket cable 3 and closed bucket rope cable 4 and be the steel wire cable.
As shown in Fig. 1 ~ 7, in the present embodiment, also comprise: a pair of angle pulley 7, it is corresponding one by one with a pair of closed bucket rope cable 4, closed bucket rope cable 4 is through angle pulley 7 commutations, and the starting point of two outside common tangents of a pair of movable pulley 22 of its winding is on the movable pulley 22 of opposite side bucket body 11.
As shown in Fig. 1 ~ 7, in the present embodiment, also comprise: four support roller devices 6, four support roller devices 6 are arranged on rope guide rack 5, each support roller device 6 correspondence is one by one held one and is opened bucket cable 3 or closed bucket rope cable 4, make four steel wire cables of grab bucket can not stir together, the wire rope handling of assurance assembly pulley inside is succinctly convenient, simultaneously, four steel wire cables of grab bucket can not be intertwined mutually, play simultaneously the effect of balance grab bucket, when hoisting after grab bucket crawl material, open bucket steel wire cable simultaneously stressed, stressed being consistent.
As shown in Fig. 1 ~ 7, in the present embodiment, bucket body 11 also comprises: cutting edge 113, itself and bucket body 11 are welded to connect, the material selection high strength steel (HARDOX400) of this cutting edge 113, and the existing high strength of this kind steel has again high hardness, resistance to abrasion is good, and is therefore not easy to wear, greatly reduced maintenance capacity.
As shown in Fig. 1 ~ 7, in the present embodiment, main muscle 12 and rope guide rack 5 are connected by bearing pin at hinge 13 places, 13 places are provided with wear-resisting steel bushing at this hinge, also be lubricated by lubricating oil in use, can guarantee to grab bucket repeatedly open in operation with closure fully flexibly, prevent stuck.
as shown in Fig. 1 ~ 7, after ship unloaders (hoisting crane) start, the cable that hoists of ship unloaders upwards hoists, drive is opened bucket cable 3 and is tightened up, closed bucket rope cable 4 loosens simultaneously, under Action of Gravity Field, grab bucket is opened, after opening fully, grab bucket drops in the bulk goods cabin, be shelved on and prepare the crawl material on bulk material, at this moment, the switching cable of ship unloaders upwards hoists, driving closed bucket rope cable 4 upwards tightens up, the a pair of movable pulley 22 that drives in a pair of bucket body 11 is drawn close to the centre, a pair of bucket body 11 is closed gradually, simultaneously, open bucket cable 3 and be in relaxed state, along with closed bucket rope cable 4 tightens up gradually, therefore, the effect that grab bucket is received the closing force that closed bucket rope cable 4 sends at this moment, grab bucket is done circular motion around hinge 13 and is begun to excavate material downwards, because grab bucket of the present utility model is to obtain grasp force by cable and the combined mode of assembly pulley, thereby, two bucket body 11 closures along with grab bucket, its closing force is constantly to increase, after the complete closure of grab bucket, the steel rope of ship unloaders upwards hoists, grab bucket being connected goods together hoists.Along with grab bucket is closed, its closing force is ever-reduced due to traditional long strut grab bucket, and therefore, the utility model can than traditional more goods of long strut grab bucket crawl, can be realized high crawl ratio.
In sum, a kind of high crawl of the utility model is grabbed bucket than bulk goods, not only grasps than super large, greatly reduces the invalid load of grab bucket; And it is high from heavy and light, structural strength, has greatly saved to overcome the energy that the grab bucket deadweight consumes, thereby has greatly improved the efficient of unloading a ship.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (9)
1. a high crawl is grabbed bucket than bulk goods, comprises the two symmetrically arranged bucket bodies of lobe (11), and described bucket body (11) comprises two blocks of bucket body side plates (111), bucket body base plate (112) and is arranged on wherein cramp bar; Correspondence supports two main muscle (12) of two lobe bucket bodies (11) respectively, and described two main muscle (12) intersect at hinge (13) and captive joint, and grab bucket is done circular motion around this hinge (13), it is characterized in that, also comprises:
Rope guide rack (5), described rope guide rack (5) is located to captive joint at hinge (13) with two main muscle (12);
A pair of movable pulley (22), described movable pulley (22) be arranged in corresponding bucket body (11) and with corresponding bucket body (11) in the cramp bar captive joint;
One splits bucket cable (3), described one split the bucket cable (3) corresponding one by one with two lobe bucket bodies (11) and main muscle (12), one first end of splitting bucket cable (3) is connected with the cable that hoists of the hoisting crane of outside respectively, and it is connected that its second end is walked around respectively the top of its corresponding movable pulley (22) and the main muscle (12) corresponding with it;
A pair of closed bucket rope cable (4), described a pair of closed bucket rope cable (4) is corresponding one by one with two lobe bucket bodies (11), the first end of a pair of closed bucket rope cable (4) is connected with the switching cable of the hoisting crane of outside, and after its second end is wound around some circles along two outside common tangents of a pair of movable pulley (22) respectively, the bucket body (11) corresponding with its place one side is connected.
2. high crawl as claimed in claim 1 is grabbed bucket than bulk goods, it is characterized in that, also comprise: a pair of angle pulley (7), described a pair of angle pulley (7) is corresponding one by one with a pair of closed bucket rope cable (4), closed bucket rope cable (4) is through angle pulley (7) commutation, and the starting point of two outside common tangents of its a pair of movable pulley of winding (22) is on the movable pulley (22) of opposite side bucket body (11).
3. high crawl as claimed in claim 1 is grabbed bucket than bulk goods, it is characterized in that, also comprise: four support roller devices (6), described four support roller devices (6) are arranged on rope guide rack (5), and each support roller device (6) correspondence is one by one held one and opened bucket cable (3) or closed bucket rope cable (4).
4. high crawl as claimed in claim 1 than the bulk goods grab bucket, is characterized in that, described closed bucket rope cable (4) is 2.5 along the number of turns of two outside common tangents windings of a pair of movable pulley (22).
5. high crawl as claimed in claim 1 than the bulk goods grab bucket, is characterized in that, the material of described bucket body (11) is alloy steel.
6. high crawl as claimed in claim 5 than the bulk goods grab bucket, is characterized in that, described bucket body (11) also comprises: cutting edge (113), described cutting edge (113) is welded to connect with bucket body (11).
7. high crawl as claimed in claim 6 than the bulk goods grab bucket, is characterized in that, the material of described cutting edge (113) is high strength steel.
8. high crawl as claimed in claim 1 than the bulk goods grab bucket, is characterized in that, described hinge (13) locates also to be provided with wear-resisting steel bushing.
9. high crawl as claimed in claim 1 than the bulk goods grab bucket, is characterized in that, describedly opens bucket cable (3) and closed bucket rope cable (4) is the steel wire cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701127 CN202944984U (en) | 2012-12-18 | 2012-12-18 | Bulk-cargo grab bucket with high grab ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701127 CN202944984U (en) | 2012-12-18 | 2012-12-18 | Bulk-cargo grab bucket with high grab ratio |
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| Publication Number | Publication Date |
|---|---|
| CN202944984U true CN202944984U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220701127 Expired - Fee Related CN202944984U (en) | 2012-12-18 | 2012-12-18 | Bulk-cargo grab bucket with high grab ratio |
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| Country | Link |
|---|---|
| CN (1) | CN202944984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010945A (en) * | 2012-12-18 | 2013-04-03 | 上海海事大学 | Bulk-cargo grab bucket with high grabbing ratio |
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2012
- 2012-12-18 CN CN 201220701127 patent/CN202944984U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010945A (en) * | 2012-12-18 | 2013-04-03 | 上海海事大学 | Bulk-cargo grab bucket with high grabbing ratio |
| CN103010945B (en) * | 2012-12-18 | 2015-12-09 | 上海海事大学 | A kind of high crawl is grabbed bucket than bulk goods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20131218 |