CN104071712A - Large-tonnage crawler crane - Google Patents
Large-tonnage crawler crane Download PDFInfo
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- CN104071712A CN104071712A CN201410329049.1A CN201410329049A CN104071712A CN 104071712 A CN104071712 A CN 104071712A CN 201410329049 A CN201410329049 A CN 201410329049A CN 104071712 A CN104071712 A CN 104071712A
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- balance weight
- inner core
- starting balance
- crawler crane
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Abstract
The invention discloses a large-tonnage crawler crane which comprises a rotary table, a main arm, a superlift mast and a superlift counterweight, wherein the superlift counterweight is connected with the top end of the superlift mast through a pulling plate or pulling pipe. The large-tonnage crawler crane is characterized in that the superlift counterweight is configured at one end of a superlift counterweight amplitude variation device the length of which can be adjusted, and the other end of the superlift counterweight amplitude variation device is hinged with the rotary table. The superlift counterweight in the large-tonnage crawler crane is connected with the rotary table through the superlift counterweight amplitude variation device the length of which can be adjusted, and the superlift counterweight amplitude variation device is capable of realizing amplitude variation of the superlift counterweight during flexing.
Description
Technical field
The present invention relates to overhead hoist, especially relevant with the counterweight luffing structure of large-tonnage crawler crane.
Background technology
At present, super-starting balance weight is the vitals of large-tonnage crawler crane, and the stability on car load and the impact of weight hoisting capacity are very large.Conventionally as shown in Figure 1, existing large-tonnage crawler crane 1 comprises turntable 13, principal arm 11, has surpassed the parts such as mast 12 and super-starting balance weight 14 the luffing principle of super-starting balance weight.Wherein, super-starting balance weight 14 is connected to by arm-tie or trombone slide 15 head that has surpassed mast 12, surpass mast 12 rotations and can realize super-starting balance weight 14 luffings, in order to overcome the centnifugal force of super-starting balance weight 14 in turning course, between super-starting balance weight 14 and turntable 13, be connected with rope hauling device 16.This traditional luffing mode, when having surpassed mast 12 positions when fixing, super-starting balance weight 14 just can not carry out luffing again, and therefore super-starting balance weight luffing fine adjustment function is poor, needs often operation surpass mast 12, causes problems such as lifting by crane shakiness.In addition, when hoisting crane 1 lifting heavy and revolution, because rope hauling device 16 lacks rigidity, cause the vibration of super-starting balance weight 14 large, the car load of hoisting crane 1 is impacted greatly, cause hoisting crane 1 unstable working condition.
Summary of the invention
For problems of the prior art, object of the present invention is for providing a kind of super-starting balance weight to carry out luffing and hoisting crane car load is impacted to little large-tonnage crawler crane when fixing having surpassed mast.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of large-tonnage crawler crane, comprise turntable, principal arm, surpassed mast and super-starting balance weight, described super-starting balance weight connects the described top that has surpassed mast by arm-tie or trombone slide, described super-starting balance weight is configured in one end of the super-starting balance weight luffing device that a length can adjust, and the other end of described super-starting balance weight luffing device and described turntable are hinged.
Further, described super-starting balance weight luffing device comprises urceolus, inner core and hydraulic ram, described inner core is sleeved in described urceolus, and described urceolus and described inner core can relative slidings, described inner core connects described turntable, described urceolus connects described super-starting balance weight, and the cylinder body connection of described hydraulic ram is arranged on described turntable one end, and the piston rod of described hydraulic ram connects described urceolus one end.
Further, inner side, described urceolus end is provided with interior nylon block, on described interior nylon block, is provided with multiple chutes, and described inner core is provided with multiple slide blocks on outside, and described slide block is corresponding with described chute.
Further, outside, described inner core end is also provided with outer nylon block, and described outer nylon block coordinates described outer tube inner wall.
Further, described hydraulic ram is set in described inner core inside, is provided with oil cylinder supporting transparent cover on described inner core end, goes out to hold to support the outstanding of described cylinder body of hydraulic oil cylinder.
Further, on described urceolus, be connected with spider, described spider is connected with described super-starting balance weight.
Further, described super-starting balance weight luffing device also comprises truss joint, transition segment and strut, the cylinder body of described inner core and described hydraulic ram is installed on transition segment, described truss joint one end connects described turntable, the top of the other end connects described transition segment, described strut one end connects the bottom of described transition segment, and the other end connects the bottom of described truss joint.
Further, described transition segment bottom is provided with one first connecting bore, and described strut one end is provided with multiple the second connecting bores, between described the first connecting bore and arbitrary the second connecting bore, is connected by stud shaft.
Beneficial effect of the present invention is, the present invention compared with prior art, super-starting balance weight in the present invention is crossed the super-starting balance weight luffing device that a length can adjust and is connected with turntable, when stretching, realizes this super-starting balance weight luffing device the luffing of super-starting balance weight, and this super-starting balance weight luffing device is owing to having higher rigidity, make crane lifting weight and the super-starting balance weight vibration of when revolution little, hoisting crane car load is impacted little, the working process of hoisting crane is more stable.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Fig. 1 is existing large-tonnage crawler crane structural representation;
Fig. 2 is large-tonnage crawler crane structural representation of the present invention;
Fig. 3 is the main TV structure schematic diagram of super-starting balance weight luffing device in large-tonnage crawler crane of the present invention;
Fig. 4 is super-starting balance weight luffing device plan structure schematic diagram in large-tonnage crawler crane of the present invention;
Fig. 5 is outer tube structure schematic diagram in large-tonnage crawler crane of the present invention;
Fig. 6 is the sectional structure schematic diagram along A-A line in Fig. 5;
Fig. 7 be in Fig. 5 B to structural representation;
Fig. 8 is inner tube structure schematic diagram in large-tonnage crawler crane of the present invention;
Fig. 9 is the sectional structure schematic diagram along C-C line in Fig. 8;
Figure 10 is the sectional structure schematic diagram along D-D line in Fig. 8.
Detailed description of the invention
The exemplary embodiments that embodies feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various variations on different embodiment, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing be when the use that explain in itself, but not in order to limit the present invention.
As shown in Figure 2, a kind of large-tonnage crawler crane of the present invention, comprise turntable 23, principal arm 21, surpassed mast 22, super-starting balance weight 24 and super-starting balance weight luffing device 26 etc., super-starting balance weight 24 connects by arm-tie or trombone slide 25 top that has surpassed mast 22, super-starting balance weight luffing device 26 length can be adjusted, super-starting balance weight 24 is configured in one end of this super-starting balance weight luffing device 26, and the other end of this super-starting balance weight luffing device 26 and turntable 23 are hinged.
In the present embodiment, as shown in Figure 3 and Figure 4, super-starting balance weight luffing device 26 comprises urceolus 61, inner core 62, hydraulic ram 63, truss joint 64, transition segment 65, strut 66 and spider 67.Wherein, inner core 62 is sleeved in urceolus 61, and urceolus 61 and inner core 62 can relative slidings, inner core 62 one end are arranged on transition segment 65, transition segment 65 is connected with truss joint 64, and the other end of truss joint 64 connects turntable 23, and urceolus 61 connects super-starting balance weight 24 by spider 67, cylinder body 631 connections of hydraulic ram 63 are arranged on transition segment 65, and the piston rod 632 of hydraulic ram 63 connects urceolus 61.
Shown in constructional drawing 5-Fig. 7 of urceolus 61, urceolus 61 inner sides are provided with interior nylon block 614 on the one end near transition segment 65, and 614 of interior nylon are fixedly mounted on by screw 616 on the cylindrical shell 611 of urceolus 61.On interior nylon block 614, be provided with multiple chutes 615, in the present embodiment, the quantity of this chute 615 is 4.Urceolus 61 outer rim tops are provided with spider otic placode 613, and connect spider 67 by this spider otic placode 613, and spider 67 is connected with super-starting balance weight 24.Urceolus 61 is provided with hydraulic ram otic placode 612 on the one end away from turntable 23, and by the piston rod 632 of these hydraulic ram otic placode 612 connecting fluid compressing cylinders 63.
As Figure 8-Figure 10, inner core 62 outsides are provided with outer nylon block 622 on the one end away from turntable 23 to the structure of inner core 62, and the quantity of the present embodiment China and foreign countries nylon block 622 is 4, is arranged on the cylindrical shell 621 of inner core 62 respectively by screw 625.On inner core 62 outsides, be provided with multiple slide blocks 624, slide block 624 is corresponding with chute 615, and in the present embodiment, slide block 624 quantity are 4, and the each chute 615 of each slide block 624 bearing fit, in the time that the relative inner core 62 of urceolus 61 slides, plays the effect of guiding.On the end, one end of inner core 62 away from turntable 23, be provided with oil cylinder supporting transparent cover 623, with support hydraulic oil cylinder 63 cylinder bodies 631.
Shown in figure 2-Figure 10, hydraulic ram 63 is set in inner core 62 inside, cylinder body 631 one end of hydraulic ram 63 are arranged on transition segment 65, one end is installed in the middle circular hole of oil cylinder supporting transparent cover 623, and the end that the piston rod 632 of hydraulic ram 63 exposes is connected on the hydraulic ram otic placode 612 of urceolus 61.
The cylinder body 631 of inner core 62 and hydraulic ram 63 is installed on transition segment 65, and truss saves 64 one end and connects turntable 23, and the top of the other end connects transition segment 65, and strut 66 one end connect the bottom of transition segment 65, the bottom of other end truss frame for connecting joint 64.Transition segment 65 bottoms are provided with one first connecting bore (not shown), and strut 66 one end are provided with between multiple the second connecting bore 661, the first connecting bores and arbitrary the second connecting bore 661 and are connected by bearing pin, to adjust installation site.
In the present embodiment, the first dress of hydraulic ram 63 is apart from 8m, stroke 6m.When the present invention uses, coating butter all on urceolus 61 inner sides, inner core 62 outsides, interior nylon block 614, outer nylon block 622 and slide block 624.When the piston rod 632 of hydraulic ram 63 extends, impel urceolus 61 to slide along inner core 62, the motion of urceolus 61 impels spider 67 to promote super-starting balance weight 24 and carries out luffing.Because the truss joint 64 in the present embodiment is 5m, and can determine according to actual needs whether use, be that transition segment 65 can be connected with turntable 23 by this truss joint 64 (or directly), therefore the luffing of 24 two scopes of super-starting balance weight: 19-25m and 24-30m can be provided in the present embodiment.
Tool of the present invention has the following advantages:
1, structure of the present invention can greatly be dwindled the size of hydraulic ram 63, being used in conjunction with of inner core 62 and urceolus 61, make hydraulic ram 63 only bear axial force, reduced the impact of side force to hydraulic ram 63, make super-starting balance weight 24 luffing abilities stronger and reliable and stable.
2, when having surpassed mast 22 when fixing, the present invention can, by changing the amplitude of super-starting balance weight 24, improve the load-carrying ability of crawler crane 2, also can improve while hanging loads the stability of crawler crane 2 car loads.
3,5m truss saves 64 use, has made up the deficiency of hydraulic ram 63 strokes, has increased the luffing scope of super-starting balance weight 24 of the present invention.
4, the present invention can effectively reduce crawler crane 2 and vibrates hanging super-starting balance weight 24 in loads process, reduces the impact to crawler crane 2 car loads.
Technical scheme of the present invention is disclosed as above by preferred embodiment.Those skilled in the art should recognize change and the retouching the scope and spirit of the present invention that the appended claim of the present invention discloses, done in the case of not departing from, within all belonging to the protection domain of claim of the present invention.
Claims (8)
1. a large-tonnage crawler crane, comprise turntable, principal arm, surpassed mast and super-starting balance weight, described super-starting balance weight connects the described top that has surpassed mast by arm-tie or trombone slide, it is characterized in that, described super-starting balance weight is configured in one end of the super-starting balance weight luffing device that a length can adjust, and the other end of described super-starting balance weight luffing device and described turntable are hinged.
2. large-tonnage crawler crane as claimed in claim 1, it is characterized in that, described super-starting balance weight luffing device comprises urceolus, inner core and hydraulic ram, described inner core is sleeved in described urceolus, and described urceolus and described inner core can relative slidings, and described inner core connects described turntable, and described urceolus connects described super-starting balance weight, the cylinder body connection of described hydraulic ram is arranged on described turntable one end, and the piston rod of described hydraulic ram connects described urceolus one end.
3. large-tonnage crawler crane as claimed in claim 2, it is characterized in that, inner side, described urceolus end is provided with interior nylon block, on described interior nylon block, is provided with multiple chutes, described inner core is provided with multiple slide blocks on outside, and described slide block is corresponding with described chute.
4. large-tonnage crawler crane as claimed in claim 2, is characterized in that, outside, described inner core end is also provided with outer nylon block, and described outer nylon block coordinates described outer tube inner wall.
5. large-tonnage crawler crane as claimed in claim 2, is characterized in that, described hydraulic ram is set in described inner core inside, is provided with oil cylinder supporting transparent cover on described inner core end, goes out to hold to support the outstanding of described cylinder body of hydraulic oil cylinder.
6. large-tonnage crawler crane as claimed in claim 2, is characterized in that, on described urceolus, is connected with spider, and described spider is connected with described super-starting balance weight.
7. the large-tonnage crawler crane as described in as arbitrary in claim 2-6, it is characterized in that, described super-starting balance weight luffing device also comprises truss joint, transition segment and strut, the cylinder body of described inner core and described hydraulic ram is installed on transition segment, described truss joint one end connects described turntable, the top of the other end connects described transition segment, and described strut one end connects the bottom of described transition segment, and the other end connects the bottom of described truss joint.
8. large-tonnage crawler crane as claimed in claim 7, it is characterized in that, described transition segment bottom is provided with one first connecting bore, and described strut one end is provided with multiple the second connecting bores, between described the first connecting bore and arbitrary the second connecting bore, is connected by stud shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329049.1A CN104071712A (en) | 2014-07-10 | 2014-07-10 | Large-tonnage crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329049.1A CN104071712A (en) | 2014-07-10 | 2014-07-10 | Large-tonnage crawler crane |
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| CN104071712A true CN104071712A (en) | 2014-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410329049.1A Pending CN104071712A (en) | 2014-07-10 | 2014-07-10 | Large-tonnage crawler crane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444860A (en) * | 2014-12-11 | 2015-03-25 | 徐州重型机械有限公司 | Hitching device, balance weight device and hitching method |
| CN113511600A (en) * | 2021-07-09 | 2021-10-19 | 浙江三一装备有限公司 | Super-lifting counterweight adjusting and connecting device and crane |
Citations (7)
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| DE19931301A1 (en) * | 1999-07-07 | 2001-01-18 | Liebherr Werk Ehingen | Procedure for changing position of load hook of crane with deflection of crane elements considered for control of drive elements with regulation of lifting, luffing or rotary mechanism of crane |
| US6568547B1 (en) * | 1998-12-04 | 2003-05-27 | Atecs Mannesmann Ag | Crane, especially a self-propelled crane |
| CN201962003U (en) * | 2010-12-07 | 2011-09-07 | 徐工集团工程机械股份有限公司建设机械分公司 | Crawling crane and derricking device for counterweight of same |
| CN102530746A (en) * | 2010-12-07 | 2012-07-04 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane and superlift counterweight device |
| CN102862921A (en) * | 2006-10-27 | 2013-01-09 | 马尼托瓦克起重机有限责任公司 | Mobile lift crane with variable position counterweight |
| CN202704897U (en) * | 2012-06-29 | 2013-01-30 | 徐工集团工程机械股份有限公司 | Folding arm type super-lift counterweight amplitude varying device for crawler crane |
| CN202867452U (en) * | 2012-11-20 | 2013-04-10 | 四川省宜宾普什重机有限公司 | Telescopic arm |
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2014
- 2014-07-10 CN CN201410329049.1A patent/CN104071712A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6568547B1 (en) * | 1998-12-04 | 2003-05-27 | Atecs Mannesmann Ag | Crane, especially a self-propelled crane |
| DE19931301A1 (en) * | 1999-07-07 | 2001-01-18 | Liebherr Werk Ehingen | Procedure for changing position of load hook of crane with deflection of crane elements considered for control of drive elements with regulation of lifting, luffing or rotary mechanism of crane |
| CN102862921A (en) * | 2006-10-27 | 2013-01-09 | 马尼托瓦克起重机有限责任公司 | Mobile lift crane with variable position counterweight |
| CN201962003U (en) * | 2010-12-07 | 2011-09-07 | 徐工集团工程机械股份有限公司建设机械分公司 | Crawling crane and derricking device for counterweight of same |
| CN102530746A (en) * | 2010-12-07 | 2012-07-04 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane and superlift counterweight device |
| CN202704897U (en) * | 2012-06-29 | 2013-01-30 | 徐工集团工程机械股份有限公司 | Folding arm type super-lift counterweight amplitude varying device for crawler crane |
| CN202867452U (en) * | 2012-11-20 | 2013-04-10 | 四川省宜宾普什重机有限公司 | Telescopic arm |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444860A (en) * | 2014-12-11 | 2015-03-25 | 徐州重型机械有限公司 | Hitching device, balance weight device and hitching method |
| CN104444860B (en) * | 2014-12-11 | 2016-10-05 | 徐州重型机械有限公司 | A kind of hanging device, weight-balancing device and hooking method |
| CN113511600A (en) * | 2021-07-09 | 2021-10-19 | 浙江三一装备有限公司 | Super-lifting counterweight adjusting and connecting device and crane |
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Application publication date: 20141001 |
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