CN1138005A - Automatic assembling hoisting machine with folding lazy arm - Google Patents

Automatic assembling hoisting machine with folding lazy arm Download PDF

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Publication number
CN1138005A
CN1138005A CN 96103158 CN96103158A CN1138005A CN 1138005 A CN1138005 A CN 1138005A CN 96103158 CN96103158 CN 96103158 CN 96103158 A CN96103158 A CN 96103158A CN 1138005 A CN1138005 A CN 1138005A
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CN
China
Prior art keywords
arm
centre
hinged
jointed shaft
rigid support
Prior art date
Application number
CN 96103158
Other languages
Chinese (zh)
Inventor
弗朗西斯·阿昆诺
Original Assignee
波丹公司
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Filing date
Publication date
Priority to FR9503575A priority Critical patent/FR2732000B1/en
Priority to FR9503575 priority
Application filed by 波丹公司 filed Critical 波丹公司
Publication of CN1138005A publication Critical patent/CN1138005A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details
    • B66C23/64Jibs
    • B66C23/68Jibs foldable or otherwise adjustable in configuration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/348Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes the erection being operated by jacks

Abstract

A crane includes a tower body (6) composed of two foldable parts (7, 8) and a boom (10) hinged on the top part of the tower body and composed of a plurality of parts (from 11 to 15) hinged on a location of a lower stringer one by one, namely that: the back part height (h1) of a root part (11) of the boom is smaller; a first middle part (14) of the foldable boom is provided with a front rigid strut (40); the front part height (h2) of a main part (12) of the boom is lower; a second middle part (15) of the foldable boom and a part (13) at the boom end are provided with a proper height (h3). Actuating cylinders (44-45, 53-54, 65, 66) arranged among the parts drive the boom to fold and unfold. The boom is also supported by a back pull rod (20), a front pull rod (48) and a connecting pull rod (52). All the pull rods can be foldable and can be connected on the front strut (40) and the back strut (24).

Description

Automatic installation crane with collapsible arm

The invention belongs to the technical scope of automatic installation crane, especially for the tower crane in building construction or public work building site.For can tower crane is rapid, transport to another building site from a building site less, or move to another place with taking up an area of safely as far as possible from a place, tower crane must be able to be folded up, and need not artificial intervention.

The present invention is applied to have the crane of multi-segment structure arm especially, each section that constitutes arm is hinged in following stringer position in succession, each section stacked mutually when arm was folding, or rather, arm is by constituting more than three sections, and they are divided into long arm major part and make the arm folding convenient and reduce the short centre part of folding back size.

The principle of this class arm can bibliography FR-A-2368430, and data EP-A-0536061 and EP-A-0536001.These data have clearly been described by two long master units and the collapsible arm that the short centre part between them constitutes.

Data EP-A-0536060 and EP-A-0536061 have more ad hoc introduced the implementation of this crane.Wherein, the centre part of folded boom arm is connected with an adjacent arm master unit by a power part, and power part can be a hydraulic actuator, and it makes this centre part rotate around its jointed shaft.And another adjacent major part links to each other with aforesaid major part by a connecting device.This connecting device comprises three elements that are hinged together at least, and wherein intermediary element is hinged on the attachment point on the centre part of folded boom arm.This back major part that it will drive arm rotates around its jointed shaft on centre part.

This example is applicable to by two long major part and arms that centre part constitutes, two major parts are called arm root spare and boom tip parts, centre part is between arm root spare and boom tip parts, its length equals arm root spare and end pieces height sum substantially, so that when crane is folded up transportation minimum height can be arranged.

For the arm that has more than two major parts, for example by three major parts and two arms that centre part constitutes, long major part is called arm root spare, arm centre part and boom tip parts, and centre part lays respectively between the major part.Height after this arm is folding is too big, the oad requirement in the time of can't adapting to crane and transport on highway.

In addition, the unique pull bar of this crane is with the end of rigid support and a bit coupling together of arm root spare front portion.Pillar itself is hinged on the rear portion of body of the tower top or arm root spare.Under the situation of having only a pull bar folded boom arm, must adopt this layout, but it makes arm stretch too much that cantilever stretches out when being in control position.Overhang is all the part length sums except that arm root spare.In this case, in order to control the stress and strain in the boom structure that cantilever stretches out, the size that increases the arm cross-sectional plane is very easily, for the weight that alleviates structure preferably increases height.Will to reduce the crane height of folding up be contradiction with the purpose that adapts to the transport package size and increase the height of arm and we.

At last, if with the device described in data EP-A-0536060 and the EP-A-0536061, i.e. power part and a connecting device that has three parts that are hinged together to constitute, when being used to the arm of two above major parts is arranged, need to produce very big power in engine installation the centre part of folded boom arm is rotated, this centre part is between arm root spare and arm major part in succession.

The present invention will solve the problem in the above-mentioned example, and we will design a kind of like this arm, and it is by several together component set-ups of being hinged at following stringer place, and arm does not have cantilever to stretch out, and the lateral dimension of arm parts reduces.It can be applied to have the very arm of length by many component set-ups, before folding, and the size after arm is folded up is less, and crane is installed automatically.

Therefore, the automatic installation crane that has collapsible arm according to the present invention, has known body of the tower, particularly can be divided into the body of the tower that folding two parts constitute, one is following body of the tower, and one is to go up body of the tower, axle with a level between them is hinged, also can be scalable body of the tower, an arm be hinged on the body of the tower top, and arm is by descending stringer place pivotally attached component set-up in succession.These parts are divided into the bigger arm major part of length, and the centre part of the folded boom arm between two arm major parts.Arm is by one group of pull bar, the strut assemblies support, and this assembly is connected with the end of rigid support after, and rigid support itself is hinged on body of the tower top or arm rear portion.Supportive device after crane also has one, it couples together the end and the rotation seat rear portion of rigidity back prop.Rotation seat is positioned at the bottom of body of the tower, and balance weight is housed.The bottom of body of the tower is hinged on the front portion of rotation seat by a horizontal shaft, also has a power part on the crane, as pressurized strut, and fold/the opening or body of the tower flexible of control body of the tower, and some other folds and opens the dynamical element of arm.This crane is characterised in that the assembly of arm is:

---arm first major part, be called arm root spare, the aspect ratio at its rear portion is less;

---first centre part of folded boom arm, it by a power part direct connection on arm root spare, power part drive centre part around it with root spare between the jointed shaft rotation, a preceding rigid support is arranged above the centre part;

---arm second major part, length are roughly consistent with aforesaid arm root spare, and its front height is lower.It gets up by the first centre part direct connection of a dynamical element and folded boom arm, and dynamical element drives the jointed shaft of this major part between first centre part of it and folded boom arm and rotates;

---second centre part of folded boom arm, it is by a power part and fwd arm major part direct connection, second centre part that power part drives this folded boom arm rotates around the jointed shaft between it and arm second major part, a connecting device that arm second major part and arm the 3rd major part are coupled together is arranged above the centre part, and the 3rd major part is called the boom tip parts;

---the boom tip parts, it can guarantee highly that it can put into to fold up when being in travelling position when crane and be reduced in the space that constitutes by arm root spare rear portion and the arm second major part front height;

---collapsible back stay, it links together the end of arm root spare with the back rigid support;

---collapsible front tension bar, it couples together the preceding rigid support end on first centre part of arm second major part and folded boom arm, and

---and a folding cylinder lever connecting rod, the end of rigid support end and back rigid support before connecting.

According to the example of being recommended, arm fold/open preferably double acting hydraulic actuator of engine installation, its cylinder body is hinged on the arm parts, and piston rod is hinged on the adjacent arm parts of front or back.

In another example, first centre part of folded boom arm has two ends, side by two triangles is connected with the following stringer of these parts respectively, between them with one longitudinally bar connect, the midpoint of bar has a cross bar, rigid support before supporting, the top of cross bar transverse frame, this transverse frame is rigidly connected with following stringer middle part.A horizontal jointed shaft is arranged on first end points, and with the piston rod of a hinged pressurized strut, this pressurized strut is used to drive first centre part and rotates around the jointed shaft that is positioned on the arm root spare.A horizontal jointed shaft is arranged on second end points, be used for a hinged pressurized strut cylinder body, this is made tube and is used to drive arm second major part around the jointed shaft rotation that is positioned on first centre part.

According to bells and whistles, before the bottom of rigid support be hinged on by horizontal jointed shaft on the aforementioned cross bar on first centre part of folded boom arm, a lever is arranged in its underpart, lever is supported on the transverse frame that contains cross bar, so that pillar is according to the control position of the needs of installing from it, its control position is perpendicular to the longitudinal axis of arm in working order the time basically.

For second centre part of folded boom arm, as an example, it comprises two vertical offset ends, and the side by a ditrigon is connected on the following stringer of these parts separately.The height of first end points is a little more than another end points, a horizontal jointed shaft is arranged on first end points, the piston rod of pressurized strut is hinged on this axle, and second centre part that pressurized strut will drive folded boom arm rotates around the jointed shaft that is positioned on arm second major part.The jointed shaft that the connecting device center part is arranged on second end points.This connecting device links together boom tip parts and arm second major part.

According to bells and whistles, connecting device has three parts that are hinged, they are: first connecting rod, and it can be that single connecting rod also can be the multi beam connecting rod, the axle that is laterally hinged with that it will be positioned at the arm second major part front portion couples together with jointed shaft on the first end of intermediary element; Intermediary element is to constitute by having double-arm elbow lever, and the Zhoujian part links to each other by second end points of jointed shaft with second centre part of folded boom arm; Also having a second connecting rod in addition, can be that single connecting rod also can be many.It couples together a jointed shaft that passes groove on intermediary element the other end with the jointed shaft that is positioned at boom tip parts rear portion.

According to a kind of example, with the collapsible back stay that couples together of end of arm root spare and back rigid support from after be forward to constitute by two hard parts in succession: a part is a simplex pull rod, its length is suitable with the length of back rigid support, another is a duplex pull rod, and its length is suitable with the last stringer length of the arm root spare that is positioned at the back stay below.Two parts of this of back stay couple together with a horizontal jointed shaft, these two parts have several holes on the relative end, and jointed shaft can be inserted in the different holes, so that make back stay get different length, realize different mode of operations: arm is a level, more or less lifts.

In a special example, with arm second major part and be positioned at collapsible front tension bar that the preceding rigid support end on first centre part of folded boom arm couples together from after constitute by three rigid elements in succession forward, first is a duplex pull rod, and the length of its length and preceding rigid support is suitable.Second is that the 3rd of simplex pull rod also is simplex pull rod, preferably is connected with each other with two horizontal jointed shafts between them.One of them jointed shaft is cooperation very close to each other, and another can have certain clearance, so that axis can stagger a little.The length that length that latter two part of (preceding) pull bar links up and arm second major part are positioned at front tension bar below part is suitable.The jointed shaft that connects front tension bar first and second parts can pass of several holes of being arranged on these two corresponding ends of part, so that realize different mode of operations: the arm level, lift more or less.

As for the collapsible contact pull bar on rigid support summit before and after connecting be by from after forward seven push-and-pull rods of arranged in succession constitute, they are: first simplex pull rod, the cross section is a U-shaped, opening is arm dorsad; Second simplex pull rod, cross section are U-shaped, and opening is towards arm, and it is connected with first pull bar by a lateral shaft, on its another section a guide piece are arranged; The 3rd simplex pull rod is with the lateral shaft of roller to be connected with second pull bar with one; There is a vertical slide rail at the rear portion of four-pull-rod, and an axle that has roller equally is horizontally through slide rail itself and the 3rd pull bar are coupled together; The 5th simplex pull rod also is to be connected with four-pull-rod with a lateral shaft that has roller; The 6th pull bar is a duplex pull rod, and it is connected with the 5th pull bar with a lateral shaft that has two-wheel, and there is a slide rail longitudinally its front portion; The 7th pull bar is a simplex pull rod, and it has two lateral shafts that one in front and one in back pass aforementioned slide rail.

No matter the details of structure how, we have designed a kind of crane of automatic installation, and it is an auto-folder.That is to say does not need artificial intervention.Consider the special construction of various arm parts, particularly on the way transportation, various pull bars can be folded up mutually and lean against on these arm parts.

In any case, by understanding the present invention well to the following description of limiting examples that this has the automatic installation crane of collapsible arm, relevant accompanying drawing is:

Fig. 1 is the lateral plan of crane of the present invention in working order the time;

Fig. 2 is that same crane is folded up the lateral plan when being in travelling position;

Fig. 3 to Fig. 8 be the arm of this crane folding/each stage in the opening procedure;

Fig. 9 shows first centre part of the folded boom arm with rigid support in detail;

Figure 10 shows second centre part of folded boom arm and the connecting device that is made of three parts that are hinged together in detail;

Figure 11 shows (arm) when being in straight configuration, connects the thin portion of the back stay of arm root spare and rigid support end, back;

Figure 12 shows that (arm) when being in straight configuration, connects second major part of arm and the front tension bar of preceding rigid support end;

Figure 13 demonstration (when arm is in straight configuration, connects the thin portion of cylinder lever connecting rod of the end of back rigid support and preceding rigid support.

Illustrate the crane structure that shows to have the following known parts of people that are by Fig. 1: a fixing or transportable base 1, it is supporting rotation seat 3 by middle steering hardware 2, balance weight 4 is equipped with in the back of rotation seat 3, and its front is with horizontal jointed shaft 5 articulated bodies of the tower 6; Body of the tower 6 can fold, by constituting by horizontally hinged axle 9 hinged in the back following body of the tower 7 and last bodies of the tower 8.This crane has a folding thing arm 10 that hangs, and it is by five component set-ups in succession, and the horizontally hinged axle at their following stringer places by being positioned at them is hinged together.Arm 10 has three relatively long major parts, is called arm root spare 11, arm major part 12 and boom tip parts 13; Also have the relatively centre part of short folded boom arm of two length on the arm, they lay respectively between two arm major parts, and they are called first centre part 14 of folded boom arm and second centre part 15 of folded boom arm.

Two poles 16 of last body of the tower 8 usefulness are connected with rotation seat 3, and pole 16 is distributed in the both sides of body of the tower 6 symmetrically, and two horizontally hinged axles of pole are respectively horizontally hinged axle 17 that is positioned at body of the tower 8 bottoms and the horizontally hinged axle 18 that is positioned at rotation seat 3 back.

Arm 10 is hinged on the top of body of the tower 6 by horizontally hinged axle 19, and by back stay 20 holding positions, and back stay 20 is connected on the end 23 of an attachment point on the stringer 22 21 and back rigid support 24 on the arm root spare 11.Back rigid support 24 phase crane rears tilt, and its root is hinged on the bottom of arm root spare 11 by horizontally hinged axle 25.Back rigid support 24 positions own keep by back stay 26 again.Back stay 26 connects the end 23 of back rigid support 24 and the attachment point 27 at rotation seat 3 rear portions.

The time marquis that crane is installed, it is vertical to be about to body of the tower 6, and arm 10 is opened the time marquis who lifts, and is dynamic driving.As known, folding and opening of collapsible body of the tower 6 is to drive with double acting hydraulic actuator 28.

The height h1 that the rear portion of arm root spare 11 is positioned at the part below the pull bar 20 is lower.

First centre part 14 of folded boom arm is between arm root spare 11 and arm major part 12.It has two end points 29,30 in succession, and it highly is positioned at last stringer 22 places of arm root spare 11.Each end points correspondingly uses two 31,32 fens sides of spider to be connected with the following stringer 33 of these parts 14.Two ends at following stringer are respectively equipped with jointed shaft 34 and 35, and are hinged with arm major part 11 and 12 separately.Using longitudinally between two end points, bar 36 connects.As showing in detail among Fig. 9, there is a transverse frame 37 centre of the centre part 14 of this folded boom arm, will descend the centre portion of stringer 33 to be rigidly connected to longitudinal rod 36.The cross tube 38 of framework 37 is being supported horizontally hinged axle 39, and the bottom-hinged of preceding rigid support 40 is on this jointed shaft 39.The bottom of preceding rigid support 40 is levers 41, can lean against on the pillar 42 of framework 37, makes the pillar 40 and the direction 43 of vertical member 14 constitute the angle A of a deflection arm root spare 11.The horizontal jointed shaft 46 of cylinder body 44 usefulness of the first double acting hydraulic actuator 44-45 is hinged on last stringer 22 ends of arm root spare 11, its piston rod is hinged on by horizontally hinged axle 47 on first end points 29 of first centre part 14 of folded boom arm, and pressurized strut will drive first centre part 14 of folded boom arm around its jointed shaft 34 rotations on arm root spare 11.

The height h2 of arm major part 12 front portions is lower, and front tension bar 48 is being fixed in its end.The attachment point 49 on front tension bar 48 links 12 on the stringer 50 and the summit 51 of preceding rigid support 40.A cylinder lever connecting rod 52 couples together two pillars 24,40 end points 23,51 separately.The horizontal jointed shaft 55 of cylinder body 53 usefulness of the second double acting hydraulic actuator 53-54 is hinged on second end points 30 of centre part 14 of folded boom arm, 54 rearward end that are hinged on stringer 50 on the arm major part 12 with horizontal jointed shaft 56 of its piston rod.Pressurized strut 53-54 drives the jointed shaft 35 of arm major part 12 on its centre part 14 in folded boom arm and rotates.

Second centre part 15 of folded boom arm is between arm major part 12 and boom tip parts 13.As Figure 10 institute showed in detail, it included two at height and the end points 57,58 that vertically staggers mutually.Two end points use the side of two triangles 59,60 to be connected with the following stringer 61 of these parts 15 respectively.There are jointed shaft 62 and 63 in two ends at following stringer 61, and are hinged with two arm parts 12,13 respectively.Be positioned on the midplane of arm 10 with arm major part 12 corresponding higher end points 57, and with the corresponding low end points 58 of boom tip parts 13 be two, marquis when arm 10 stretches, they are located substantially on down the vertical top of stringer 61, highly are positioned at stringer 64 places on the boom tip parts 13.The horizontal jointed shaft 67 of cylinder body 65 usefulness of the 3rd double acting hydraulic actuator 65-66 is hinged on the forward terminal of stringer 50 on the arm major part 12, and 66 in its piston rod is hinged on by horizontally hinged axle 68 on first end points 57 of centre part 15 of folded boom arm.Second centre part 15 that pressurized strut 65-66 drives folded boom arm rotates around the jointed shaft 62 that it is positioned on the arm major part 12.Connecting device 69 is made of two parts that are symmetrical in arm 10 vertically middle faces.Each part is made of lever 70 and two double link 71,72 of an elbow, and this device couples together boom tip parts 13 and arm major part 12.Two arms 73,74 of elbow lever 70 are in the obtuse angle, and the top of the horn is towards the below of arm 10.This lever 70 is hinged with the end points 58 of the centre part 15 of folded boom arm by the horizontally hinged axle 76 that is positioned at Zhoujian 75 places.First double link 71 links to each other with the top of the bearing 79 that is fixed on arm major part 12 front ends and the free end of elbow lever 70 postbrachiums 73 respectively by two horizontally hinged axles 77,78.In the position corresponding to connecting rod 71, bearing 79 also is a double support, and it is made of two parts that are symmetrical in arm 10 vertically middle faces.The height of double support 79 approximates the height of arm 10 greatly.The horizontally hinged axle 80,81 of two of second double link, 72 usefulness is connected with the rear portion of stringer 64 on the free end of elbow lever 70 forearms 74 and the boom tip parts 13 respectively.Jointed shaft 80 passes the slotted hole 82 on the free end of elbow lever 70 forearms 74.

The height h3 of boom tip parts 13 on whole length is lower with respect to the maximum height H of arm 10.

When five parts 11,14,12,15,13 in succession of arm 10 arranging in a line like that as shown in figs. 1 and 3, pressurized strut 44-45,53-54,65-66 stretches out fully, and connecting device 69 is in line basically with the last stringer 22,50,64 of arm 10.

As shown in figure 11, the back stay 20 that connects arm root spare 11 and rigid support 24 ends 23, back from after forward by two hard parts 83 in succession, 84 constitute, they are respectively: first simplex pull rod 83, its length is suitable with back rigid support 24, and second duplex pull rod 84, its length is suitable with the length that is positioned at stringer 22 on the back stay 20 below arm root spares 11.It is hinged that two pull bar 83,84 usefulness are laterally hinged with axle, and jointed shaft can be through among in the different holes 85 on pull bar 83, the 84 corresponding ends one.

Use different connecting bores, arm 10 is horizontal, perhaps more or less lift.

As shown in figure 12, connect arm major part 12 and preceding rigid support 40 free end 51 front tension bar 48 from after constitute by three push-and-pull rods 86,87,88 in succession forward.They are respectively: first duplex pull rod 86, the length of its length and preceding rigid support 40 is suitable, second simplex pull rod 87 and the 3rd simplex pull rod 88.Two of the second and the 3rd pull bar 87,88 usefulness are laterally hinged with axle 89 and 90 and couple together.A jointed shaft is seamlessly to install, and another is gapped, can (make two bars) and interlace slightly.The length of the assembly that is made of latter two pull bar 87 and 88 is suitable with the length that arm second major part 12 is positioned at the part under the front tension bar 48.Couple together with a horizontal jointed shaft between preceding two pull bars 86 and 87, jointed shaft can be inserted in the holes 91 different on these two parts, 86,87 corresponding ends.

The same with the situation of back stay 20, we can with lengthening or shortening front tension bar 48, make arm 10 be horizontal with the combination of selecting different holes 91, perhaps lift more or less.

As shown in figure 13, connect before and after rigid support 24 and 40 separately end points 23 and 51 cylinder lever connecting rod 52 be from after constitute by seven push-and-pull rods of arranged in succession forward.First simplex pull rod 92, cross section are U-shaped, and opening is arm 10 dorsad; Second simplex pull rod 93, cross section are U-shaped, and opening is towards arm 10, and it is connected with first pull bar 92 by a lateral shaft 94, and a guide piece 95 is arranged on its other end; The 3rd simplex pull rod 96 is with the lateral shaft 97 of plastic roller to be connected with second pull bar 93 with one; There is a vertical chute 99 at the rear portion of four-pull-rod 98, and the lateral shaft 100 that has plastic roller passes chute, and can slide therein, and itself and the 3rd pull bar 96 are coupled together; The 5th simplex pull rod 101 is connected with four-pull-rod 98 with the lateral shaft 102 that has plastic roller equally; The 6th duplex pull rod 103, it is connected with the 5th pull bar 101 with a lateral shaft 104 that has two plastic wheels, and it has a vertical chute 105; The 7th pull bar 106 is simplex pull rods, and it has two lateral shafts 107 and 108 that one in front and one in back pass aforementioned slide rail 105.

From open mode shown in Figure 1, arm 10 auto-folder processes will progressively be carried out by the following method that will describe as Fig. 3 to shown in Figure 8.

At first, under the effect of pulling back, piston rod 66 is recovered in the cylinder body 65 at double acting hydraulic actuator 65-66, lays respectively at hinge-point 67 on the second folding centre part 15 of arm major part 12 and arm and 68 distance and shortens.Therefore, two parts 13 and 15 assemblies that constitute by arm rotate around the hinge-point 62 of arm 10.Meanwhile, laying respectively at hinge-point 81 on boom tip parts 13 and the arm major part 12 and 77 distance has also shortened, make the hinge-point 76 of elbow lever 70 on second centre part 15 of folded boom arm rotate, this will drive boom tip parts 13 and rotate around the hinge-point 63 of arm 10.

We can see, at synchronization, second centre part 15 of folded boom arm and boom tip parts 13 rotate around the hinge-point 62 of arm 10 and 63 respectively, through midway location shown in Figure 4, up to boom tip parts 13 be positioned at fully arm major part 12 above.

Show this position of (and shown thin portion by Figure 10) at Fig. 5, we can see that 13 overturnings of boom tip parts are come, and its position separates slightly with arm major part 12, so that pass through front tension bar 48.The axle 80 that connects double link 72 is in the position near jointed shaft 76 at this moment in the slotted hole 82 of elbow lever 70.

Subsequently, under the effect of pulling back, piston rod 54 is withdrawn in the cylinder body 53 at double acting hydraulic actuator 53-54, lays respectively at first centre part 14 of folded boom arm and the hinge-point 55 on the arm major part 12 and 56 distance and shortens.Like this, the assembly that is made of arm parts 12,15 and folding parts 13 rotates around the hinge-point 35 of arm 10.Meanwhile, as shown in Figure 6, front tension bar 48 has loosened, 91 places fold up at hinge-point, and the hinge-point 39 of front standing pillar 40 on first centre part 14 that is positioned at folded boom arm falls backward, up to its pole 42 of following lever 41 top upper frames 37, framework 37 also is to be supported on first centre part 14 of folded boom arm.Preceding rigid support 40 falls backward, has loosened cylinder lever connecting rod 52 simultaneously, and the pull bar 92,93,96 at its rear portion comes on the still slack-free back stay 20, because the guide piece 95 on the pull bar 93, these pull bars can centering.53-54 withdraws fully when hydraulic actuator, and during this release, arm 10 is in position shown in Figure 7.That is to say that arm major part 12 is in the position perpendicular to first centre part 14 of folded boom arm, at this moment first centre part 14 still is in a straight line with arm root spare 11.The end pieces 13 of arm is dangled on the hinge-point 63 of second centre part 15 of it and folded boom arm by its deadweight, and front tension bar 48 is folded up around its hinge-point 91, leans against on the last stringer 50 of front standing pillar 40 and arm major part 12.

Then, under the effect of pulling back, piston rod 45 is withdrawn in the pressurized strut cylinder body 44 at double acting hydraulic actuator 44-45, lays respectively at hinge-point 46 on first centre part 14 of arm root spare 11 and folded boom arm and 47 distance and shortens.Like this, the hinge-point 34 of assembly on arm 10 that is made of the arm parts of folding up 14,12,15,13 rotates.Meanwhile, cylinder lever connecting rod 52 is folded up and is shortened, its each fulcrum is respectively: the plastics two-wheel on the jointed shaft 104 of lever 101 leans against on the cylinder body 44 of pressurized strut 44-45, plastic roller on the jointed shaft 102 between the lever 98 and 101 leans against on the last stringer 22 of arm root spare, plastic roller on the jointed shaft 97,100 on the lever 93 and 96 leans against on the pull bar 20 of still tension.And jointed shaft 100 and 104 slides in the chute 99 and 105 on the lever 98 and 103 of pull bar 52 respectively.When arm 10 was positioned at position shown in Figure 8, pressurized strut 44-45 quit work, and showed in detail as institute among Fig. 9, at this moment with the folding body of the tower 6 of known method, and carried out the folding of whole crane.At this moment when body of the tower 6 folded, back prop 24 changeed forward around its hinge-point 25, and back stay 20 and cylinder lever connecting rod 52 are folded up, and arm root spare 11 is poured on above the body of the tower 8, went up body of the tower 8 and just rotated around its hinge-point 19.After body of the tower 6 and arm root spare 11 were folded up fully, we restart double acting hydraulic actuator 44-45 made it to retraction, folds up fully till the travelling position that reaches as Fig. 2 up to (crane).

Self-evident, open crane in order to realize the state from Fig. 2, particularly open arm 10, the reversed in order of operation, the process of opening are to process shown in Figure 3 from Fig. 8.

Like this, we have just set up a crane of installing automatically, and the mode that its arm 10 usefulness " roll " folds.

Following situation does not exceed scope of the present invention:

---revise the details of structure, as relate to the direction of pressurized strut, this direction can be conversely, or relate to the structure of each pull bar;

---same principle is applied to the crane of a telescopic body of the tower rather than collapsible body of the tower;---use other back supportive device, rather than aforesaid back stay.

Claims (9)

1. the arm automatic installation crane that can fold, it comprises: body of the tower (6), the particularly collapsible body of the tower that constitutes by two parts (7,8) one on the other, the jointed shaft (9) with level between them links together, and body of the tower also can be telescopic; Hinged (at the 19 places) arm (10) on body of the tower (6), it is by hinged in succession (34 at following stringer place, 35,62,63 places) a plurality of parts (11 to 15) constitute, these parts are the bigger arm master unit (11 of length, 12,13) and be positioned at two arm master units (11,12,13) between, the centre part (14,15) of short folded boom arm; Arm (10) is held by the assembly of pull bar (20,48,52) and rigid support (40) formation, and they are connected in back rigid support (24) end (23) at body of the tower (6) or arm (10) rear portion with hinged (at 25 places); And supportive device (26) after, it connects the end (23) of back rigid support (24) and the back of rotation seat (3), rotation seat (3) is positioned at the bottom of body of the tower (6), balance weight (4) is housed above, and the lower part (7) of body of the tower (6) is hinged on the front of rotation seat (3) by horizontally hinged axle (5); Also have engine installation on the crane, as pressurized strut (28) control body of the tower (6) fold/opening or flexible, and some other dynamical element (44-45,53-54 65-66) control fold/opening of arm (10), it is characterized by: the constituting of arm (10):
---arm first master unit, be called arm root spare (11), (h1) is less for the height at its rear portion;
---first centre part (14) of folded boom arm, it is by an engine installation (44-45) and arm root spare direct connection, engine installation drives this centre part (14) and rotates around the jointed shaft (34) of itself and arm root spare (11), and preceding rigid support (40) is arranged on the centre part (14);
---arm second master unit (12), its length is equivalent to arm root spare (11), (h2) is lower for its front height, it directly is connected with first centre part (14) of folded boom arm by engine installation (53-54), and this engine installation driving master unit (12) is around jointed shaft (35) rotation of first centre part (14) of it and folded boom arm;
---second centre part (15) of folded boom arm, it passes through engine installation (65-66) direct connection on arm master unit (12), this engine installation drives second centre part (15) of folded boom arm around its jointed shaft (62) rotation with arm second master unit (12), a device (69) that arm second master unit (12) and the 3rd master unit (13) are coupled together is arranged on the centre part (15), and the 3rd master unit is called the boom tip parts;
---boom tip parts (13), its height (h3) can be put between the part of arm root spare (11) rearward height less (h1) partial sum arm second master unit (12) front height less (h2) it when crane is folded into travelling position;
---collapsible back stay (20), it couples together the end (23) of arm root spare (11) and back rigid support (24);
---collapsible front tension bar (48), it couples together the end points (51) of the preceding rigid support (40) on first centre part (14) of arm second master unit (12) and folded boom arm; And
---folding cylinder lever connecting rod (52), it couples together the end points (51) of preceding rigid support (40) and the end points (23) of back rigid support (24).
2. the automatic installation crane that arm according to claim 1 can fold, it is characterized by: the engine installation of fold/opening arm (10) is double acting hydraulic actuator (44-45,53-54,65-66), its cylinder body (44,53,65) be hinged on the parts of arm, piston rod (45,54,66) is hinged on the arm parts of front or rear adjacent.
3. the automatic installation crane that arm according to claim 2 can fold, it is characterized by: first centre part (14) of folded boom arm has two end points (29,30), their each personal two A-frames (31,32) dual-side is connected on the following stringer (33) of parts (14), vertically couple together with a beam (36) between the two-end-point, a cross bar (38) is equipped with in the centre of beam, preceding rigid support (40) is housed on the cross bar, this cross bar constitutes the top of transverse frame (37), framework is fixed in down the centre of stringer (33), a horizontal jointed shaft (47) is arranged on first end points (29), above the piston rod (45) of articulated pressurized strut (44-45), pressurized strut (44-45) drives this first centre part (14) and goes up jointed shaft (34) around it at arm root spare (11) and rotate; Have one to be laterally hinged with axle (55) on second end points (30), above the cylinder body (54) of pressurized strut (53-54) was hinged on, pressurized strut (53-54) drove arm second master unit (12) and rotates around its jointed shaft (35) on first centre part (14).
4. the automatic installation crane that arm according to claim 3 can fold, it is characterized by: the root of preceding rigid support (40) is hinged on the cross bar (38) of first centre part (14) of aforementioned folded boom arm with being laterally hinged with axle (39), lever (41) on the pole (42) that is supported in framework (37) is being arranged below the pillar, cross bar (38) is the part of framework (37), this lever (41) can make pillar (40) depart from normal operation position according to folding needs, and its normal operation position is vertical with the longitudinal axis of arm (10) when being in control position.
5. the automatic installation crane that can fold according to any described arm in the claim 2 to 4, it is characterized by: second centre part (15) of folded boom arm has two end points (57 that vertically stagger mutually, 58), they are separately by two spiders (59,60) side is connected with the following stringer (61) of parts (15), first end points (57) is a little more than another end points (58), be laterally hinged with axle (68) on first end points (57), above the piston rod (66) of articulated pressurized strut (65-66), second centre part (15) that pressurized strut (65,66) drives this folded boom arm rotates around its jointed shaft (62) on arm second master unit (12); Jointed shaft (76) is arranged on second end points (58), above the intermediary element (70) of articulated connecting device (69), connecting device couples together boom tip parts (13) and arm second master unit (12).
6. the automatic installation crane that arm according to claim 5 can fold, it is characterized by: connecting device (69) has three elements (70,71,72), they are: single or many first connecting rod (71), and its connects the jointed shaft (78) on point (77) and intermediary element (70) first end of being laterally hinged with at arm second master unit (12) rear portion; Elbow lever (70) with two arms constitutes intermediary element, and its Zhoujian (75) is hinged on second end points (58) of folding second centre part (15) of arm by jointed shaft (76); Single or many second connecting rod (72), what its connected the jointed shaft (80) that passes intermediary element (70) other end slotted hole (82) and boom tip parts (13) rear portion is laterally hinged with axle (81).
7. the automatic installation crane that can fold according to any described arm in the claim 1 to 6, it is characterized by: the collapsible back stay (20) that connects push-and-pull rod (24) end (23), back and arm root spare (11) from after forward by two rigid bars (83 in succession, 84) constitute, they are: first simplex pull rod, and its length is suitable with the length of back rigid support (24); Second duplex pull rod, its length is suitable with the length that the arm root spare (11) that is positioned at back stay (20) below is gone up stringer (22); These two pull bars (83,84) link together with being laterally hinged with axle between, jointed shaft can be inserted in one of several holes (85) on the corresponding end of two pull bars (83,84), so that realize different mode of operations: arm (10) basic horizontal, or arm (10) more or less lifts.
8. the automatic installation crane that can fold according to any described arm in the claim 1 to 7, it is characterized by: connect arm second master unit (12) and be positioned at the preceding rigid support (40) on first centre part of folded boom arm (14) end (51) collapsible front tension bar (48) from after constitute (86 by three rigid bars in succession forward, 87,88), they are: first duplex pull rod (86), and the length of its length and preceding rigid support (40) is suitable; Second simplex pull rod (87) and the 3rd simplex pull rod (88), the most handy two are laterally hinged with axle (89 between them, 90) couple together, one of them jointed shaft is the assembling of no gap, and another is gapped assembling, so that two pull bars can be slightly conllinear not, by latter two pull bar (87,88) to be positioned at the length of the part under the front tension bar (48) suitable for the length of the assembly of Gou Chenging and arm second master unit (12), link together with being laterally hinged with axle between first pull bar (86) and second pull bar (87), jointed shaft can be inserted in two pull bars (86,87) in one of several holes (91) on the corresponding end, so that realize different mode of operations: arm (10) basic horizontal, or arm (10) more or less lifts.
9. the automatic installation crane that can fold according to any described arm in the claim 2 to 8, it is characterized by: the collapsible cylinder lever connecting rod (52) that connects back and preceding rigid support (24,40) end points (23,51) separately from after constitute (92 by seven rigid bars in succession forward, 93,96,98,101,103,106), they are: first simplex pull rod (92) element, its cross-sectional plane are the opening U-shaped of arm (10) dorsad; Second simplex pull rod (93), its cross-sectional plane are the U-shaped of opening towards arm (10), and it is connected with first pull bar (92) with jointed shaft (94), and its other end has a guide piece (95); The 3rd simplex pull rod (96), it is connected with second pull bar (93) with an axle (97) that is laterally hinged with that has guide wheel; Four-pull-rod (98), its rear portion have a chute (99) longitudinally, and a lateral shaft (100) that has guide wheel is through wherein, and can slide in groove, and itself and the 3rd pull bar (96) are coupled together; The 5th simplex pull rod (101), the lateral shaft (102) that it is had guide wheel couples together with four-pull-rod (98); The 6th duplex pull rod, it couples together with lateral shaft (104) that has two-wheel and the 5th pull bar (101), and chute (105) is longitudinally arranged in its front portion; The 7th simplex pull rod (106) has tandem two lateral shafts (107,108) above it, they pass aforesaid chute (105).
CN 96103158 1995-03-22 1996-03-21 Automatic assembling hoisting machine with folding lazy arm CN1138005A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9503575A FR2732000B1 (en) 1995-03-22 1995-03-22 Automated mount crane with foldable boom on itself
FR9503575 1995-03-22

Publications (1)

Publication Number Publication Date
CN1138005A true CN1138005A (en) 1996-12-18

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CN 96103158 CN1138005A (en) 1995-03-22 1996-03-21 Automatic assembling hoisting machine with folding lazy arm

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EP (1) EP0733584B1 (en)
CN (1) CN1138005A (en)
AT (1) AT179392T (en)
DE (1) DE69602224T2 (en)
ES (1) ES2132861T3 (en)
FR (1) FR2732000B1 (en)
RU (1) RU2161119C2 (en)

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CN103318781A (en) * 2012-11-01 2013-09-25 上海振华重工(集团)股份有限公司 Crane provided with folding arm and beams
CN108137295A (en) * 2015-11-10 2018-06-08 特雷克斯全球有限公司 Mobilecrane and make its main boom extension with respect to the method that main boom is bent
CN108883916A (en) * 2015-11-24 2018-11-23 特雷克斯全球有限公司 The main boom of relative movement formula crane bends the mobilecrane of its extension
WO2020063007A1 (en) * 2018-09-30 2020-04-02 徐工集团工程机械股份有限公司 Foldable truss section, truss, and crane
US10647553B2 (en) 2015-11-10 2020-05-12 Terex Global Gmbh Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane

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FR2790252B1 (en) * 1999-02-26 2001-04-06 Potain Sa Device for simultaneous folding or folding of crane boom tip elements
FR2792627B1 (en) * 1999-04-23 2001-06-01 Potain Sa Crane with multi-function boom
ITMI20010116A1 (en) 2001-01-23 2002-07-23 San Marco Internat S R L Crane with composite structure tower crane with foldable tower and removable and arm to piu 'portions
ITMI20021957A1 (en) * 2002-09-16 2004-03-17 San Marco Internat S R L Self-erecting tower crane with foldable tower and removable and arm to piu 'foldable portions
AU2004226240A1 (en) 2003-04-02 2004-10-14 Terex-Demag Gmbh & Co. Kg Two-piece main boom for a latice-boom crane and method for erection thereof
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CA2913090A1 (en) 2013-05-23 2014-11-27 Les Enceintes Acoustiques Unisson Inc. Foldable structural truss
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CN102267671A (en) * 2010-06-04 2011-12-07 周杨 Novel crane boom
CN102267671B (en) * 2010-06-04 2015-09-16 周杨 Crane arm
CN102756978A (en) * 2012-07-20 2012-10-31 辽宁抚挖重工机械股份有限公司 Foldable arm of crawler crane
CN103318781A (en) * 2012-11-01 2013-09-25 上海振华重工(集团)股份有限公司 Crane provided with folding arm and beams
CN103318781B (en) * 2012-11-01 2015-05-13 上海振华重工(集团)股份有限公司 Crane provided with folding arm and beams
US10640339B2 (en) 2015-11-10 2020-05-05 Terex Global Gmbh Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane
CN108137295A (en) * 2015-11-10 2018-06-08 特雷克斯全球有限公司 Mobilecrane and make its main boom extension with respect to the method that main boom is bent
US10647553B2 (en) 2015-11-10 2020-05-12 Terex Global Gmbh Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane
CN108137295B (en) * 2015-11-10 2019-12-03 特雷克斯全球有限公司 Mobilecrane and make its main boom extension with respect to the method that main boom is bent
CN108883916B (en) * 2015-11-24 2020-01-03 特雷克斯全球有限公司 Mobile crane with bending of its extension relative to the main jib of the mobile crane
US10640340B2 (en) 2015-11-24 2020-05-05 Terex Global Gmbh Mobile crane for angling a main jib extension relative to a main jib of a mobile crane
CN108883916A (en) * 2015-11-24 2018-11-23 特雷克斯全球有限公司 The main boom of relative movement formula crane bends the mobilecrane of its extension
US10781083B2 (en) 2015-11-24 2020-09-22 Terex Global Gmbh Mobile crane and method for angling a main boom extension in relation to a main boom of a mobile crane
WO2020063007A1 (en) * 2018-09-30 2020-04-02 徐工集团工程机械股份有限公司 Foldable truss section, truss, and crane

Also Published As

Publication number Publication date
AT179392T (en) 1999-05-15
EP0733584B1 (en) 1999-04-28
ES2132861T3 (en) 1999-08-16
FR2732000B1 (en) 1997-05-30
RU2161119C2 (en) 2000-12-27
EP0733584A1 (en) 1996-09-25
FR2732000A1 (en) 1996-09-27
DE69602224D1 (en) 1999-06-02
DE69602224T2 (en) 1999-11-11

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