CN103171977A - Large-scale hoisting equipment with A-frame folding inversed function - Google Patents
Large-scale hoisting equipment with A-frame folding inversed function Download PDFInfo
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- CN103171977A CN103171977A CN2013100638304A CN201310063830A CN103171977A CN 103171977 A CN103171977 A CN 103171977A CN 2013100638304 A CN2013100638304 A CN 2013100638304A CN 201310063830 A CN201310063830 A CN 201310063830A CN 103171977 A CN103171977 A CN 103171977A
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- cabinet frame
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Abstract
The invention discloses large-scale hoisting equipment with an A-frame folding inversed function, belongs to the field of cranes, and particularly relates to an overwater floating crane hoist. An A frame is composed of a front supporting rod and a rear pulling plate, and the rear pulling plate is composed of an upper section and a lower section which are connected through a pin shaft; the two sides of the front supporting rod are symmetrically and respectively provided with two support oil cylinders, each support oil cylinder is correspondingly provided with an operation standard oil cylinder supporting base and a folding inversed position oil cylinder supporting base on the front supporting rod and an upper rotating platform respectively, and supporting rods are symmetrically arranged among the two sides of the front supporting rod and the upper rotating platform; and when the A frame is folded and inversed to form a critical angle between the horizontal surface and the front supporting rod, the connection between the support oil cylinders and the standard oil cylinder supporting base is changed into the connection between the support oil cylinders and the inversed position oil cylinder supporting base, so that the support oil cylinders can support the A frame in the folding inversed position. The A frame provided by the invention can be stressed reasonably in a folding and stentering process so as to be safe and stable, the A frame of the overwater floating crane hoist is exactly, efficiently and safely folded, and a height permitted requirement in an inland river is met.
Description
Technical field
The present invention is a kind of the folding large lifting equipment of being inverted function A cabinet frame, belongs to the hoisting crane field, particularly crane ship hoisting crane waterborne.
Background technology
At present, large-tonnage boom type crane ship waterborne hoisting crane configures the A cabinet frame usually, and fixed type is arranged on the crane ship tail end, and the A cabinet frame is equipped with each deflection sheave group and luffing fixed pulley group, the capsizing moment of bearing complete machine.Growing along with the inland river water project, demand to the above-water large-scale weight-lifting equipment is increasing, and the limit for height in inland river has retrained the particularly size of crane ship hoisting crane of weight-lifting equipment, obviously fixedly the height of A cabinet frame can not meet limit for height, has caused the zone of action of hoisting crane to be extremely restricted.For this reason, have the folding large lifting equipment of being inverted function A cabinet frame in the urgent need to exploitation, satisfying inland river limit for height and the requirement of navigation limit for height, thereby its service efficiency is improved in the application region of widening the crane ship goliath, strengthens its economic benefit.
Summary of the invention
The purpose of this invention is to provide a kind of folding large lifting equipment of being inverted function A cabinet frame that has, to reduce the height threshold of crane ship hoisting crane, service efficiency is improved in the application region of having widened the Ha Noi goliath, strengthens economic benefit.
The technical scheme that reaches the object of the invention is:
a kind of large lifting equipment that folding inversion function A cabinet frame is arranged of the present invention, comprise turntable on hoisting crane, luffing winch and A cabinet frame, the luffing winch is installed on turntable, the A cabinet frame is chevron pointing portal-framed structure form, characteristics are that the A cabinet frame is comprised of front strut and rear arm-tie, front strut is connected by bearing pin with rear arm-tie upper end, A cabinet frame front strut, rear arm-tie lower end connects with turntable on hoisting crane by bearing pin respectively, described front strut top is connected by the variable-amplitude steel wire rope of deflection sheave with the luffing winch, described rear arm-tie is connected by bearing pin by rear arm-tie epimere and rear arm-tie hypomere and consists of, be provided with separately two support cylinders in described front strut bilateral symmetry, each support cylinder disposes work one's own department or unit cylinder support and the folding position cylinder support of being inverted at front strut and upper turntable correspondence respectively, be symmetrically arranged with cramp bar between front strut both sides and upper turntable, when the A cabinet frame is folding when being inverted to its front strut horizontal by critical angle α, by support cylinder from be converted into being connected of one's own department or unit cylinder support and be inverted being connected of a cylinder support, realize that support cylinder is to the folding supporting of being inverted the position of A cabinet frame.
The described strut bar that is symmetricly set between front strut both sides and upper turntable is the sliding bearing bar, and sliding bearing bar upper end is connected with the front strut bearing pin, and sliding bearing bar lower end is connected with the chute that is arranged at upper turntable by bearing pin.
Described rear arm-tie is box card slot type structure, and box-structure improves the strength and stiffness of back stay, and the card slot type design folds smoothly pull bar and stretches.
It is the 16-20 degree that described A cabinet frame folds the critical angle α that is inverted to its front strut and horizontal surface.
the present invention is the navigation limit for height requirement of satisfying crane ship hoisting crane waterborne, the operating process of inversion A cabinet frame is, after being placed in crane arm on rest stand, unload lower support bar and be connected bearing pin with upper turntable, start the luffing winch and begin slowly to put rope, A cabinet frame front strut rotates as the center of circle backward take lower bearing pin under Gravitative Loads, on rear arm-tie, more than the bearing pin connection place of hypomere, hypomere is radius, connecting link pin and hypomere and the rotation of upper turntable connecting link pin around rear arm-tie epimere and front strut, the epimere of rear arm-tie is inside and hypomere is folded-out, A cabinet frame height slowly reduces, this moment, variable-amplitude steel wire rope was strained condition, assurance A cabinet frame is slowly transferred.When A cabinet frame front strut is transferred to when becoming critical angle α with horizontal surface, support cylinder is connected with the oil cylinder supporting seat of upper turntable, makes it two ends and connect respectively front strut and upper turntable, shrink support cylinder, the luffing winch is put rope, guarantees that variable-amplitude steel wire rope does not stress.The A cabinet frame is slowly transferred under the combined action of deadweight and support cylinder, whole height is reduced to apart from deck plane during less than predetermined altitude, front strut and rear arm-tie are segmented into three connecting rod folded states up and down, the A cabinet frame is inverted the smallest limit state that reaches, the luffing winch stops putting rope, the support cylinder stop motion, mechanical caging A cabinet frame, A cabinet frame inversion process is completed.
When being transformed into mode of operation, the A cabinet frame is stretched to the inversion inverse process, and the elongate support oil cylinder starts simultaneously the luffing winch and tightens up variable-amplitude steel wire rope, A cabinet frame front strut slowly rotates with the bearing pin that is connected of upper turntable around front strut under support cylinder and the combined action of luffing winch.When front strut becomes critical angle α with horizontal surface, tighten up variable-amplitude steel wire rope, support cylinder does not stress gradually, removes support cylinder and upper turntable adapter shaft this moment.Continue to tighten up variable-amplitude steel wire rope, the A cabinet frame is under the effect of variable-amplitude steel wire rope pulling force, the A cabinet frame begins to stretch, when rear arm-tie upper and lower is segmented into straight line, the A cabinet frame stretched and completed this moment, and luffing winch pull-up A cabinet frame is installed strut bar lower end bearing pin, the A cabinet frame returns to mode of operation, and hoisting crane can normally play the arm hoisting operation.
The present invention has the folding large lifting equipment of being inverted function A cabinet frame, in configuration aspects, utilize simple bar linkage structure to realize the folding and stretching of large-scale component, accurately control the displacement of whole A cabinet frame structure when folding and stretching, extension, by strut bar end chute is set on upper turntable, having discharged the horizontal degree of freedom of front strut can controlledly descend; Aspect stable, the synergy by variable-amplitude steel wire rope, strut bar, support cylinder makes A cabinet frame reasonable stress in folding and the process that stretches, safety and stability.Creatively realize the folding of crane ship hoisting crane A cabinet frame waterborne, can complete folding process accurately, efficiently and safely, satisfied inland river limit for height requirement
Description of drawings
Fig. 1 is A cabinet frame work of the present invention one's own department or unit extended configuration schematic diagram;
Fig. 2 is A cabinet frame front strut of the present invention and horizontal direction folded state schematic diagram when being critical angle α;
Fig. 3 is the complete folded state schematic diagram of A cabinet frame of the present invention;
Fig. 4 is A cabinet frame front strut schematic side view of the present invention;
Fig. 5 is A cabinet frame back stay schematic side view of the present invention.
The specific embodiment
How existing accompanying drawings the present invention implements:
A cabinet frame of the present invention changes navigation front folded state process such as Fig. 1 into from mode of operation, 2, 3, 4, shown in 5, front strut 2 is connected with upper turntable 1 by bearing pin 17, variable-amplitude steel wire rope 19 turns to by deflection sheave 10, in initial conditions, rear arm-tie epimere 5 and rear arm-tie hypomere 6 are at straight line, on rear arm-tie, hypomere 5, connect by bearing pin 12 between 6, rear arm-tie epimere 5 connects by bearing pin 11 with front strut 2, rear arm-tie hypomere 6 connects by bearing pin 13 with upper turntable 1, four 3 two of support cylinders are one group, be symmetricly set on front strut 2 both sides by bearing pin 9 respectively, and be provided with work one's own department or unit cylinder support 8 in front strut 2 both sides correspondences respectively, cramp bar 4 is two, and each in front strut 2 both sides, cramp bar 4 two ends are connected in respectively the termination of front strut 2, chute 15 by bearing pin 18,14.Variable-amplitude steel wire rope 19 is the work one's own department or unit state before folding for the A cabinet frame, as shown in Figure 1.
When beginning to fold, unload the connecting link pin 14 of lower support bar 4 and upper turntable chute 15, start 7 beginnings of luffing winch and slowly put rope, under Gravitative Loads, front strut 2 rotates as the center of circle backward take lower bearing pin 17, rear arm-tie epimere 5 take bearing pin 11 as the center of circle to inner rotary, hypomere 6 take bearing pin 13 as the center of circle to inner rotary, both in rotary course all the time by bearing pin 12 constraint that links.See on the whole, the epimere 5 of rear arm-tie is inwardly folding, and the hypomere 6 of rear arm-tie is folded-out, and A cabinet frame height slowly reduces, and this moment, variable-amplitude steel wire rope 19 was strained conditiones, and assurance A cabinet frame is slowly transferred.
Become critical angle α with horizontal surface be 18 when spending when A cabinet frame front strut 2 is transferred to, releasing support cylinder 3 is connected with one's own department or unit cylinder support 8 of working, support cylinder 3 is transferred to the folding inversion cylinder support 16 that is arranged at upper turntable 1 be connected, one end of support cylinder 3 is connected with front strut 2 by bearing pin 9, the other end is connected with the folding cylinder support 16 of being inverted, thereby support cylinder 3 is supported between front strut 2 and upper turntable 1; This moment, support cylinder 3 contractions were stressed, and luffing winch 7 continues to put rope, and variable-amplitude steel wire rope 19 does not stress gradually.The A cabinet frame is slowly transferred under the combined action of gravity and support cylinder 3, whole height is reduced to apart from deck plane during less than predetermined altitude, front strut 2 and rear arm-tie epimere 5 form three connecting rod folded states with hypomere 6, the A cabinet frame is inverted the smallest limit state that reaches, luffing winch 7 stops putting rope, support cylinder 3 stop motions, strut bar 4 slides into extreme right position in chute 15.Mechanical caging this moment A cabinet frame, the inversion process is completed.
When being transformed into mode of operation, the A cabinet frame is stretched to the inversion inverse process, elongate support oil cylinder 3, A cabinet frame front strut 2 is under support cylinder 3 effects, slowly rotate around front strut 2 and upper turntable 1 adapter shaft 17, start simultaneously luffing winch 7 and tighten up variable-amplitude steel wire rope 19, only tighten up variable-amplitude steel wire rope 19 this moment, and the pulling force that promotes the A cabinet frame is not provided.Becoming critical angle α with horizontal surface when front strut 2 is 18 when spending, tighten up variable-amplitude steel wire rope 19, the pulling force that promotes the A cabinet frame is provided, unloads being connected of folding inversion cylinder support 16 on support cylinder 3 and upper turntable 1 this moment, be converted to one's own department or unit oil cylinder supporting seat 8 of working and be connected.Continue to tighten up variable-amplitude steel wire rope 19, the A cabinet frame begins to stretch under the lineoutofservice signal pull effect, and when epimere 5 and the hypomere 6 of rear arm-tie were in alignment, the A cabinet frame stretches to be completed.Variable-amplitude steel wire rope 19 pull-up A cabinet frames, the bearing pin 14 of installation strut bar 2 and slide rail 15 left ends, the A cabinet frame returns to mode of operation, and hoisting crane can normally play the arm hoisting operation.
Claims (4)
1. one kind has the folding large lifting equipment of being inverted function A cabinet frame, comprise turntable on hoisting crane, luffing winch and A cabinet frame, the luffing winch is installed on turntable, the A cabinet frame is chevron pointing portal-framed structure form, it is characterized in that, the A cabinet frame is comprised of front strut and rear arm-tie, front strut is connected by bearing pin with rear arm-tie upper end, A cabinet frame front strut, rear arm-tie lower end connects with turntable on hoisting crane by bearing pin respectively, described front strut top is connected by the variable-amplitude steel wire rope of deflection sheave with the luffing winch, described rear arm-tie is connected by bearing pin by rear arm-tie epimere and rear arm-tie hypomere and consists of, be provided with separately two support cylinders in described front strut bilateral symmetry, each support cylinder disposes work one's own department or unit cylinder support and the folding position cylinder support of being inverted at front strut and upper turntable correspondence respectively, be symmetrically arranged with cramp bar between front strut both sides and upper turntable, when the A cabinet frame is folding when being inverted to its front strut horizontal by critical angle α, by support cylinder from be converted into being connected of one's own department or unit cylinder support and be inverted being connected of a cylinder support, realize that support cylinder is to the folding supporting of being inverted the position of A cabinet frame.
2. a kind of folding large lifting equipment of being inverted function A cabinet frame that has according to claim 1, it is characterized in that, the strut bar that is symmetricly set between front strut both sides and upper turntable is the sliding bearing bar, sliding bearing bar upper end is connected with the front strut bearing pin, and sliding bearing bar lower end is connected with the chute that is arranged at upper turntable by bearing pin.
3. a kind of folding large lifting equipment of being inverted function A cabinet frame that has according to claim 1, is characterized in that, rear arm-tie is box card slot type structure.
4. a kind of folding large lifting equipment of being inverted function A cabinet frame that has according to claim 1, is characterized in that, it is the 16-20 degree that the A cabinet frame folds the critical angle α that is inverted to its front strut and horizontal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100638304A CN103171977A (en) | 2013-02-28 | 2013-02-28 | Large-scale hoisting equipment with A-frame folding inversed function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100638304A CN103171977A (en) | 2013-02-28 | 2013-02-28 | Large-scale hoisting equipment with A-frame folding inversed function |
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| CN103171977A true CN103171977A (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100638304A Pending CN103171977A (en) | 2013-02-28 | 2013-02-28 | Large-scale hoisting equipment with A-frame folding inversed function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641001A (en) * | 2013-12-03 | 2014-03-19 | 上海振华重工(集团)股份有限公司 | Herringbone frame system |
| CN109665449A (en) * | 2019-01-28 | 2019-04-23 | 南京港机重工制造有限公司 | A kind of bridge crane that ladder frame can fall and its working method |
| EP3825274A1 (en) * | 2019-11-22 | 2021-05-26 | Liebherr-MCCtec Rostock GmbH | Crane with gantry |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424683Y (en) * | 2000-05-12 | 2001-03-28 | 浙江黄岩华丽保健用品厂 | Folding multi-purpose steel |
| JP3925761B2 (en) * | 1999-01-08 | 2007-06-06 | 日立建機株式会社 | A-type frame of construction machinery |
| CN200967716Y (en) * | 2006-11-03 | 2007-10-31 | 上海三一科技有限公司 | Crane A-shaped rack directional falling device |
| CN201924837U (en) * | 2011-02-14 | 2011-08-10 | 山东科瑞机械制造有限公司 | Automatic folding lambdoidal frame |
| CN102267668A (en) * | 2010-06-04 | 2011-12-07 | 上海三一科技有限公司 | Folding guide device of rear pull rod of A-shaped frame |
| JP2012236659A (en) * | 2011-05-10 | 2012-12-06 | Kobelco Cranes Co Ltd | Gantry structure of construction machine |
| CN203095442U (en) * | 2013-02-28 | 2013-07-31 | 武桥重工集团股份有限公司 | Large hoisting equipment of A-shaped rack having folding and inversing functions |
-
2013
- 2013-02-28 CN CN2013100638304A patent/CN103171977A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3925761B2 (en) * | 1999-01-08 | 2007-06-06 | 日立建機株式会社 | A-type frame of construction machinery |
| CN2424683Y (en) * | 2000-05-12 | 2001-03-28 | 浙江黄岩华丽保健用品厂 | Folding multi-purpose steel |
| CN200967716Y (en) * | 2006-11-03 | 2007-10-31 | 上海三一科技有限公司 | Crane A-shaped rack directional falling device |
| CN102267668A (en) * | 2010-06-04 | 2011-12-07 | 上海三一科技有限公司 | Folding guide device of rear pull rod of A-shaped frame |
| CN201924837U (en) * | 2011-02-14 | 2011-08-10 | 山东科瑞机械制造有限公司 | Automatic folding lambdoidal frame |
| JP2012236659A (en) * | 2011-05-10 | 2012-12-06 | Kobelco Cranes Co Ltd | Gantry structure of construction machine |
| CN203095442U (en) * | 2013-02-28 | 2013-07-31 | 武桥重工集团股份有限公司 | Large hoisting equipment of A-shaped rack having folding and inversing functions |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641001A (en) * | 2013-12-03 | 2014-03-19 | 上海振华重工(集团)股份有限公司 | Herringbone frame system |
| CN109665449A (en) * | 2019-01-28 | 2019-04-23 | 南京港机重工制造有限公司 | A kind of bridge crane that ladder frame can fall and its working method |
| CN109665449B (en) * | 2019-01-28 | 2023-11-14 | 南京港机重工制造有限公司 | Bridge crane with collapsible ladder frame and working method thereof |
| EP3825274A1 (en) * | 2019-11-22 | 2021-05-26 | Liebherr-MCCtec Rostock GmbH | Crane with gantry |
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Application publication date: 20130626 |