CN203269360U - Volume-variable and magnification-variable light grab bucket - Google Patents
Volume-variable and magnification-variable light grab bucket Download PDFInfo
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- CN203269360U CN203269360U CN 201320341361 CN201320341361U CN203269360U CN 203269360 U CN203269360 U CN 203269360U CN 201320341361 CN201320341361 CN 201320341361 CN 201320341361 U CN201320341361 U CN 201320341361U CN 203269360 U CN203269360 U CN 203269360U
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Abstract
The utility model discloses a volume-variable and magnification-variable light grab bucket, comprising an upper bearing beam, a lower bearing beam, supporting rods, a bucket body, an opening and closing rope and a guide wheel, wherein the upper bearing beam is articulated with the upper ends of the supporting rods, and the lower ends of the supporting rods are articulated with the bucket body; the upper end of the bucket body is articulated with the lower bearing beam; and the guide wheel is arranged on the upper bearing beam, and the opening and closing rope is connected to the guide wheel. The volume-variable and magnification-variable light grab bucket also comprises an upper pulley block, a lower pulley block and a volume changing device, wherein the upper pulley block is arranged on the upper bearing beam, and comprises two upper pulleys which are symmetrically distributed leftwards and rightwards and are sleeved on an upper pin shaft; the lower pulley block is arranged on the lower bearing beam, and comprises four lower pulleys which are symmetrically distributed leftwards and rightwards and are sleeved on a lower pin shaft; and an upper rope seat is arranged on the upper bearing beam, and a lower rope seat is arranged on the lower bearing beam. Compared with the prior art, the volume-variable and magnification-variable light grab bucket can effectively realize volume change of a crane grab bucket and meet operation requirements of three and four magnifications at the same time, is simple in structure and convenient to operate, and reduces the cost of equipment.
Description
Technical field
The utility model relates to a kind of crane grab, particularly a kind ofly is applicable to the light-duty grab bucket of variable capacity zoom rate that machine uses.
Background technology
Grab bucket is a kind of folding crawl of mainly keep left right two combination buckets or a plurality of jaws and the suspender that draws off bulk material, is applicable to the aspects such as harbour, harbour, goods yard, station, mine and loads various bulk goods, mineral, coal, sand material, the cubic metre of earth and stone etc.
Along with economic development, port capacity increasing year by year, and the proportion of ore class cargo type increases year by year, and the handling efficiency of ore class cargo type becomes the important guarantee of loading and unloading capacity.
Mainly there is following defective in the door machine grab bucket that is used as loading and unloading operation that use at the harbour at present:
(1), grab bucket mostly only consists of the groundwork position by the neck plate of the left and right on bucket body, different size has quantitative bucket capacity, and recently, port development is rapid, accept type of traffic various, the block bulk goods such as existing sand material also has the dust goods such as coal, sandstone, because the goods quality of loading and unloading is different, difference of specific gravity is larger, constant volume grab bucket very easily causes machine non-utilized cargo dead weight or an overloading, and non-utilized cargo dead weight seriously influences operating efficiency, and overload can cause damage of equipment;
(2), on hoisting crane by assembly pulley, reach with the hoist purpose of larger load of less propulsive effort.The multiplying power of assembly pulley is exactly the labour-saving multiple.In prior art, when three multiplying power Working mechanism operations was used in grab bucket, the work efficiency of crawl material was higher, but the closing force of grabbing bucket when some materials of crawl is inadequate, and the grab bucket closing period is short, causes grasping effect relatively poor.When four multiplying power Working mechanism operations was used in grab bucket, the closing force of grab bucket was enough, and closing period is also longer, and the crawl effect is better, but work efficiency is not high when some materials of crawl.The lifting mechanism of a new generation's hoisting crane has adopted DC machine to add the sophisticated design of DC speed regulation, can satisfy underloading at a high speed, the various working condition requirements of heavy-duty low-speed, greatly improved the work efficiency of hoisting crane.But in prior art, the multiplying power of grab mechanisms is changeless, and in order to adapt to different working condition requirements, hoisting crane is standing has the grab mechanisms of two cover different multiplying to change on demand.Because the multiplying power of cargo hook gear immobilizes, change suspension hook time-consuming, take a lot of work, reduced the service efficiency of equipment.In addition, the work of again wearing raising line belongs to aloft work, with certain danger;
(3), at present loading and unloading generally use 40T door machine, and main 11.6 sides and 10.5 side's bivalve grab buckets that use of 40T door machine loading and unloading, it is conducted oneself with dignity about 14.5T and 16T, the deadweight of this grab bucket is larger.
The utility model content
Technical assignment of the present utility model is for above the deficiencies in the prior art, and the light-duty grab bucket of variable capacity zoom rate a kind of flexible and convenient to use, widely applicable is provided.
The technical scheme in the invention for solving the technical problem is: a kind of light-duty grab bucket of variable capacity zoom rate, comprise deck beam, through beam, strut, bucket body, switching rope and guide wheel, described deck beam and strut upper end are articulated and connected, and strut lower end and bucket body are articulated and connected; Described bucket body upper end and through beam are articulated and connected; Described guide wheel is arranged on deck beam, connects on described guide wheel to open and close rope; It is characterized in that: also comprise top sheave group, downslide wheels and positive-displacement apparatus; Described deck beam is provided with the top sheave group, comprises the top sheave that two left-right symmetric distribute in the top sheave group, and two top sheaves are set on upper pin; Described through beam is provided with the downslide wheels, comprises the lower sheave that four left-right symmetric distribute in the downslide wheels, and four lower sheaves are set on lower bearing pin; Be provided with the rope seat on deck beam, through beam is provided with lower rope seat.
Above-mentioned positive-displacement apparatus comprises increase-volume plate, bolt of rear end plate, nut, positioning plate and adapter plate; The bucket surface rear end of described bucket body is fluted, is welded with adapter plate on the bucket inner reinforced plate of described bucket body, forms slot between the bucket surface rear end of described adapter plate and bucket body, and described increase-volume plate is placed in described slot; Described bolt of rear end plate is two, is welded on respectively the bucket surface rear end medial surface of bucket body, and there is the hollow out elongated slot at described increase-volume plate two ends, and described bolt of rear end plate passes the hollow out elongated slot of increase-volume plate, limited location plate in described bucket body.
Above-mentioned positioning plate side-looking cross-sectional plane is L-type.
Be welded with handle on above-mentioned increase-volume plate.
Above-mentioned handle is welded on increase-volume plate inside face.
Compared with prior art, the utlity model has following outstanding beneficial effect:
1, can realize the transfiguration that the door machine is grabbed bucket by actv., to satisfy the multifarious demand of operating mode, realization is general the different specific weight storeroom, reaches a pipeful of multiplex purpose; Reduce the different specific weight material and changed the trouble of grabbing bucket, prevented overload; Reduce the quantity of configuration grab bucket, saved cost; Increase work efficiency, reduce construction cost;
2, can obtain during different material in crawl and grasp preferably effect, can improve again the work efficiency of grab bucket, satisfy simultaneously three or four multiplying power job requirements, simple in structure, easy to operate, reduced the cost of equipment;
3, fellow disciple's machine rated load weight, operation hook are counted in situation, grab bucket to conduct oneself with dignity by reduction and improve cargo handing efficient, and efficient can improve approximately 8%-15%.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model three multiplying power operation winding schematic diagrams.
Fig. 3 is the utility model four multiplying power operation winding schematic diagrams.
Fig. 4 is positive-displacement apparatus structural representation of the present utility model.
The specific embodiment
Below in conjunction with specification drawings and specific embodiments, the utility model is further illustrated.
As shown in Figure 1, the utility model comprises deck beam 1, through beam 2, strut 3, bucket body 4, opens and closes rope 15, guide wheel, top sheave group, downslide wheels and positive-displacement apparatus.
Described deck beam 1 is articulated and connected with strut 3 upper ends, and strut 3 lower ends and bucket body 4 are articulated and connected.Described bucket body 4 upper ends and through beam 2 are articulated and connected.
Described deck beam 1 is provided with the top sheave group, comprises in the top sheave group that 7, two top sheaves 7 of top sheave that two left-right symmetric distribute are set on upper pin.Described through beam 2 is provided with the downslide wheels, comprises in the downslide wheels that 8, four lower sheaves 8 of lower sheave that four left-right symmetric distribute are set on lower bearing pin.
Be provided with rope seat 5 on deck beam 1, through beam 2 is provided with lower rope seat 6.
Described guide wheel is arranged on deck beam 1, and described deck beam 1 is used for connecting the lifting rope on weight-lifting equipment, connects on guide wheel to open and close rope 15.
In use, if the material ratio of crawl is easier to crawl, need the grab bucket efficiency operation, take three multiplying power operation windings.As shown in Figure 2, three multiplying power operation windings of grab bucket are: open and close rope 15 and enter a lower sheave 8 in the downslide wheels by guide wheel, and then enter top sheave 7, be connected at last on lower rope seat 6.Two other lower sheave 8 in the downslide wheels is inoperative.Grab bucket just can realize the high-efficiency homework of three multiplying powers when operation.
If during the more difficult crawl of material ratio of crawl, just need to take four multiplying power operation windings.As shown in Figure 3, four multiplying power operation windings of grab bucket are: open and close rope 15 and enter a lower sheave 8 in the downslide wheels by guide wheel, and then enter another lower sheave 8 in the downslide wheels through top sheave 7, be connected at last on rope seat 5.After taking four multiplying power operation windings, the closing force of grab bucket is enough, and closing period is also longer, and the crawl effect is better.
Realize three or four multiplying power operations in same grab bucket, can obtain during different material in crawl and grasp preferably effect, can improve again the work efficiency of grab bucket, easy to operate, reduced the cost of equipment.
As shown in Fig. 1,4, described positive-displacement apparatus comprises increase-volume plate 9, bolt of rear end plate 11, nut, positioning plate 12 and adapter plate 13; The bucket surface rear end of described bucket body 4 is fluted, depth of groove is determined by the Bucket capacity of needs, be welded with adapter plate 13 on the bucket inner reinforced plate 10 of described bucket body 4, form slot between the bucket surface rear end of described adapter plate 13 and bucket body 4, described increase-volume plate 9 is complementary with the groove shapes size, and described increase-volume plate 9 can correspondence be placed in described slot; Described bolt of rear end plate 11 is two, is welded on respectively the bucket surface rear end medial surface of bucket body 4, and there is hollow out elongated slot 16 at described increase-volume plate 9 two ends, restriction bolt of rear end plate 11 strokes.Described bolt of rear end plate 11 passes the hollow out elongated slot 16 of increase-volume plate 9, fixes increase-volume plate 9 positions with nut.The interior limited location plate 12 of described bucket body 4, described positioning plate 12 side-looking cross-sectional planes are L-type, the minor face end is welded on inside face after the bucket face of bucket body 4.This positive-displacement apparatus can be according to actual needs, downwards or move up, and fixes with nut, plays the purpose that increases bucket capacity, prevents that goods from overflowing, and can accomplish appropriate adjusting, electrodeless transfiguration, improves applicability of the present utility model.
Be welded with handle 14 on increase-volume plate 9 described in prioritization scheme, this handle 14 can be welded on increase-volume plate 9 upper limbs, outside face or inside face.In in the present embodiment, described handle 14 is welded on increase-volume plate 9 inside faces.
The utility model adopts the HARDOX steel plate to make grab bucket, and 40T grab bucket deadweight is about 12T, and more common 40T grab bucket is 14.5T ~ 16T approximately, and every single operation can grasp approximately 28T of goods, manys 2T ~ 4T than existing grab bucket, and efficient can improve approximately 8% ~ 15%.
Need to prove; particular of the present utility model is described in detail the utility model; for a person skilled in the art, in the situation that do not deviate from various apparent change that spirit and scope of the present utility model carry out it all within protection domain of the present utility model.
Claims (5)
1. the light-duty grab bucket of a variable capacity zoom rate comprises deck beam, through beam, strut, bucket body, switching rope and guide wheel, and described deck beam and strut upper end are articulated and connected, and strut lower end and bucket body are articulated and connected; Described bucket body upper end and through beam are articulated and connected; Described guide wheel is arranged on deck beam, connects on described guide wheel to open and close rope; It is characterized in that: also comprise top sheave group, downslide wheels and positive-displacement apparatus; Described deck beam is provided with the top sheave group, comprises the top sheave that two left-right symmetric distribute in the top sheave group, and two top sheaves are set on upper pin; Described through beam is provided with the downslide wheels, comprises the lower sheave that four left-right symmetric distribute in the downslide wheels, and four lower sheaves are set on lower bearing pin; Be provided with the rope seat on deck beam, through beam is provided with lower rope seat.
2. the light-duty grab bucket of variable capacity zoom rate according to claim 1, it is characterized in that: described positive-displacement apparatus comprises increase-volume plate, bolt of rear end plate, nut, positioning plate and adapter plate; The bucket surface rear end of described bucket body is fluted, is welded with adapter plate on the bucket inner reinforced plate of described bucket body, forms slot between the bucket surface rear end of described adapter plate and bucket body, and described increase-volume plate is placed in described slot; Described bolt of rear end plate is two, is welded on respectively the bucket surface rear end medial surface of bucket body, and there is the hollow out elongated slot at described increase-volume plate two ends, and described bolt of rear end plate passes the hollow out elongated slot of increase-volume plate, limited location plate in described bucket body.
3. the light-duty grab bucket of variable capacity zoom rate according to claim 2 is characterized in that: described positioning plate side-looking cross-sectional plane is L-type.
4. the light-duty grab bucket of variable capacity zoom rate according to claim 2 is characterized in that: be welded with handle on described increase-volume plate.
5. the light-duty grab bucket of variable capacity zoom rate according to claim 4 is characterized in that: described handle is welded on increase-volume plate inside face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320341361 CN203269360U (en) | 2013-06-15 | 2013-06-15 | Volume-variable and magnification-variable light grab bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320341361 CN203269360U (en) | 2013-06-15 | 2013-06-15 | Volume-variable and magnification-variable light grab bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203269360U true CN203269360U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320341361 Expired - Fee Related CN203269360U (en) | 2013-06-15 | 2013-06-15 | Volume-variable and magnification-variable light grab bucket |
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| CN (1) | CN203269360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836615A (en) * | 2016-05-31 | 2016-08-10 | 无锡市新华起重工具有限公司 | Four-multiple-power remote control grab bucket |
-
2013
- 2013-06-15 CN CN 201320341361 patent/CN203269360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836615A (en) * | 2016-05-31 | 2016-08-10 | 无锡市新华起重工具有限公司 | Four-multiple-power remote control grab bucket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20160615 |
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| CF01 | Termination of patent right due to non-payment of annual fee |