CN202415027U - Aerial automatic folding mechanism of boom of triple-knuckle tower crane - Google Patents
Aerial automatic folding mechanism of boom of triple-knuckle tower crane Download PDFInfo
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- CN202415027U CN202415027U CN 201120515282 CN201120515282U CN202415027U CN 202415027 U CN202415027 U CN 202415027U CN 201120515282 CN201120515282 CN 201120515282 CN 201120515282 U CN201120515282 U CN 201120515282U CN 202415027 U CN202415027 U CN 202415027U
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Abstract
Disclosed is an aerial automatic folding mechanism of a boom of a triple-knuckle tower crane. By taking advantage of the technology of using tower expansion and providing a tail support to pull up a tail knuckle and a middle support to pull up a front knuckle and by adding fixed-length wire ropes, a triangular bracket and pulleys, synchronous automatic folding of the boom is complete only by expanding power of a tower. The two-segment expansion tower, a three-segment boom, the six fixed-length wire ropes, the two supports, the triangular bracket and a series of rollers of the aerial automatic folding mechanism form an integral linkage. The wire ropes are all tensioned when the boom is unfolded so that the boom is static. When the boom is folded, the wire ropes are loose, and the boom small in transport size is convenient to transport. The boom is simple and quick to unfold, so that complicated labor intervention is avoided, and power consumption is reduced. The aerial automatic folding mechanism belongs to a beneficial technical form for quick erection of tower cranes.
Description
Technical field
The utility model relates to a kind of folding arm tower crane, particularly relates to a kind of three folding arm arm frame of tower crane that utilize the flexible power of body of the tower to realize mechanism that takes down the exhibits automatically in the air.
Background technology
Chinese patent numbers 90101023 has provided a kind of folding crane that three sections crane arms are hinged that has, and its body of the tower is flexible to launch to use two independent power devices with crane arm.Section at the bottom of the crane arm (root joint) and second section (middle segmentum intercalaris) and second section all have horizontal bearing pin with top section (anterior joint) at last lower edge.At the F/s of installing, end section is winded up and is connected with bearing pin with second section, and the top section is connected with bearing pin with second section lower edge; The subordinate phase of installing, second section of crane arm are rotated around the bearing pin that winds up, and section contact with second section lower edge the end of up to, at this moment, needs the artificial on the ground lower edge bearing pin that inserts, and second section and end section crane arm are become one.Then, crane arm top section is rotated around the lower edge bearing pin, up to it straight back is connected as one with wind up bearing pin and second section.The phase III of installing; Extract end section and second section bearing pin that winds up out, second section of becoming one just is connected expansion with end section with the lower edge bearing pin with leading portion, rotates around this bearing pin; Up to meeting at right angles with end section; Also need between end section and second section jib wind up dress, tear connecting rod open, the crane arm after poppet is risen, could continue to make the jib exhibition to be level.
Existing a kind of body of the tower is flexible to launch three folding arm tower cranes of shared 1 engine installation with crane arm, but this three folding arms tower crane can't accomplish jib and take down the exhibits synchronously with body of the tower is flexible, needs the manual work intervention.The representative type example is: crane arm root joint and middle segmentum intercalaris and middle segmentum intercalaris all have horizontal bearing pin with anterior joint at last lower edge.During folded state, root joint and middle segmentum intercalaris are connected with bearing pin winding up, and middle segmentum intercalaris saves with the front portion and is connected with bearing pin at lower edge.At the expansion initial stage, body of the tower is not flexible, and segmentum intercalaris becomes 90 ° approximately around the rotation of root joint in making earlier, removes root joint and middle segmentum intercalaris then at the bearing pin that winds up, and connects the lower edge bearing pin; Also to make anterior joint and of the bearing pin rotation of middle segmentum intercalaris around its lower edge, treat two joint jib cut-ofves after, lower bearing pin in connections saves the front portion and middle segmentum intercalaris becomes one.At this moment the body of the tower that raises, under the effect of fixed length rope, the front portion joint that becomes one and middle segmentum intercalaris around with the rotation of root joint bonded assembly lower edge bearing pin, up to whole jib cut-off, a series of pull bars in the dependence expansion process remain on the horizontal operation state with jib.
The jib of can accomplishing of prior art is opened up the folding arm hoisting crane of putting automatically, all has a plurality of engine installations, and the crane arm expansion is not synchronously flexible with body of the tower.For example, the drag-line of pull-up afterbody support has the independent power device, the another set of engine installation that also has of segmentum intercalaris and anterior joint in the pull-up.
In sum: existing three joint folding arm hoisting cranes, all can not put with the exhibition of the flexible completion of body of the tower crane arm syn.When exhibition is put into certain phase, need artificial part zero annex dismounting and the exhibition arm engine installation that is connected or needs are additional of carrying out.Can not launch by once during the arm exhibition, need carry out stage by stage.Other a plurality of engine installations need be set assist to accomplish the stretching of tower crane miscellaneous part, structure is numerous and diverse.It is slow that the tower frame is established speed, wastes time and energy and take a lot of work.
The utility model content
The purpose of the utility model is the deficiency that will overcome prior art, provides a kind of whole parts of forming tower crane and becomes linkage structure each other, and engine installation is few, and is simple in structure; Do not need manual work department enclosure to be dismantled again and be connected when setting up, the speed of setting up is fast: the three folding arm arm frame of tower crane that the tower arm can stretch automatically when the setting up tower crane mechanism that takes down the exhibits automatically in the air.
The purpose of mechanism of the utility model three folding arm arm frame of tower crane taking down the exhibits in the air automatically can realize.The three folding arm arm frame of tower crane of the utility model mechanism that takes down the exhibits automatically in the air is achieved through prior art is improved.The three folding arm arm frame of tower crane of the utility model mechanism that takes down the exhibits automatically in the air comprises that bearing chassis passes through swing type mechanism and connect supporting base, hinged outer body of the tower on the supporting base
,Body of the tower in the socket in the outer body of the tower, body of the tower connects flexible engine installation, and the cross section that the connection of interior body of the tower top is made up of root joint, middle segmentum intercalaris and anterior joint three joints is leg-of-mutton three and turns up weighing arm; Also comprise afterbody support and middle support, the tailstock point of connection on afterbody support top is connected with supporting base through steel rope S1 and through after poppet pulley (and tailstock pulley), also is connected with the periproct point of connection through steel rope S3; The arm frame of tower crane of the utility model mechanism that takes down the exhibits automatically in the air is characterised in that: whole component set-ups of forming tower crane are linkage structure each other; The body of the tower top is provided with and the reciprocal after poppet of crane arm in said, and said root joint tail end is hinged through cat head bearing pin and interior body of the tower top at lower edge, goes back the hinged tail support on the said cat head bearing pin; Said root joint front end winds up hinged through middle bearing pin and middle segmentum intercalaris winding up; Said middle segmentum intercalaris front end is hinged through preceding bearing pin and anterior joint lower edge at lower edge, support in the middle of also being hinged with on the said middle bearing pin, and said middle support top is provided with frame point of connection and a middle frame pulley in the steel rope; Segmentum intercalaris winds up the front portion also through the point articulated spider of A in said; Said spider is provided with steel rope and connects B point and C point, and said outer body of the tower top is provided with the outer tower point of connection of steel rope, and the bottom in the said interior body of the tower is provided with bottom pulley; The top is provided with top pulleys; Said after poppet top is provided with two support pulleys, and the said afterbody joint place of winding up, rear end is provided with two tailstock pulleys, and the middle section is provided with a stage casing pulley; Place, segmentum intercalaris rear portion is provided with a steel rope point of connection in said; Said anterior joint rear end is provided with a first joint pulley, and the middle section has the first joint of steel rope point of connection, and said outer tower point of connection connects steel rope S2; Said steel rope S2 is connected with said middle joint point of connection through said bottom pulley, upper sheave, after poppet pulley, tailstock pulley, stage casing pulley, (and middle frame pulley H2); Said tailstock point of connection also is connected with said middle frame point of connection through steel rope S4, and said middle frame point of connection is connected with the B point of said spider through steel rope S5, and the C point of said spider is connected with the said first point of connection that saves through steel rope S6.
The utility model three folding arm arm frame of tower crane mechanism that takes down the exhibits automatically in the air, wherein said spider is a rigid structure frame.
The utility model three folding arm arm frame of tower crane take down the exhibits automatically in the air mechanism's difference from prior art be the utility model three folding arm arm frame of tower crane take down the exhibits automatically in the air mechanism utilized the flexible technology of existing body of the tower and at the afterbody joint afterbody support pull-up afterbody joint is set, in the middle of middle segmentum intercalaris is provided with the technology of the anterior joint of support pull-up, realize relying on the flexible power of body of the tower to accomplish crane arm and take down the exhibits automatically synchronously through setting up fixed length steel rope, spider, pulley.Take down the exhibits automatically in the air two joint telescopic towers in the mechanism, three joint crane arms, six roots of sensation fixed length steel rope, two bracing frames, a spider and a series of pulley combination of the utility model three folding arm arm frame of tower crane constitutes a whole link gear.The setting of all fixed length steel ropes, the whole tensionings of fixed length steel rope when having guaranteed the arm frame of tower crane extended configuration make jib structure be in the static determinacy state; During folded state, the fixed length rope is lax, and jib has less transportation clearance, convenient transportation.The crane arm expansion process is simply quick, avoids numerous and diverse manual intervention, simultaneously conserve power consumption.The utility model is a kind of desirable useful technology type that sets up tower crane fast.
Below in conjunction with accompanying drawing the three folding arm arm frame of tower crane of the utility model mechanism that takes down the exhibits automatically in the air is described further.
Description of drawings
Fig. 1 is that the three folding arm arm frame of tower crane mechanism's crane arm of taking down the exhibits automatically in the air is folded in the travelling position figure that sets level on the body of the tower (among the figure, middle segmentum intercalaris is folded in above the root joint with anterior joint).
(among the figure, fixed length steel rope S1 is in relaxed state to Fig. 2 with body of the tower erected state figure for folding arm.Fixed length steel rope S1, S2 are folded at after poppet pulley, tailstock pulley place respectively).
Fig. 3 is the overhanging constitution diagram of interior body of the tower (among the figure, fixed length steel rope S2 discharges, and middle segmentum intercalaris outwards stretches, and anterior joint is sagging under the deadweight effect).
Fig. 4 is fixed length steel rope S1 tensioning, and the afterbody support rotates and erects constitution diagram.
Fig. 5 is fixed length steel rope S3 tensioning, and root saves outside unfolding state figure.
Fig. 6 is fixed length steel rope S4 tensioning, and middle support erects constitution diagram, and (support end rope race was folded in the middle of fixed length steel rope S2 got among the figure; Fixed length steel rope S5 tensioning, spider rotates, fixed length steel rope S6 tensioning, the anterior joint of jib outwards launches around hinge.Fixed length steel rope S1 breaks away from the pulley of after poppet end).
Fig. 7 is elevated to maximum height for body of the tower, and jib is deployed into the horizontal operation constitution diagram.
Fig. 1～Fig. 7 is take down the exhibits the automatically structural representation of mechanism of three folding arm arm frame of tower crane in the air.
The specific embodiment
Accompanying drawing 1～accompanying drawing 7 has been explained the utility model three folding arm arm frame of tower crane take down the exhibits the automatically formation and the jib expansion process of mechanism's tower crane in the air with schematic form.
Like Fig. 1～shown in Figure 7, the three folding arm arm frame of tower crane of the utility model mechanism that takes down the exhibits automatically in the air is achieved through prior art is improved.The three folding arm arm frame of tower crane of the utility model mechanism that takes down the exhibits automatically in the air comprises that bearing chassis 1 connects supporting base 2 through turning gear, and winch 15 is set on the supporting base, and winch 15 is the flexible common engine installations of taking down the exhibits with jib of body of the tower.Hinged outer body of the tower 3 on the supporting base 2
,Body of the tower 4 in the socket in the outer body of the tower 3, outer body of the tower is provided with one group of fixed pulley 17, and interior body of the tower 4 is provided with one group of movable pulley 16, forms a derrick block group jointly.The steel rope that winch 15 is drawn is accomplished body of the tower flexible (to the steel rope of assembly pulley drawn in route accompanying drawing do not look out by winch) through this assembly pulley.Interior body of the tower 4 connects body of the tower telescopic drive mechanism (not looking out in the accompanying drawing).The cross section that the connection of interior body of the tower 4 tops is made up of root joint 6, middle segmentum intercalaris 7 and anterior joint 8 three joints is leg-of-mutton three and turns up weighing arm.
The utility model also comprises afterbody support 9 and middle support 13; The tailstock point of connection 901 on afterbody support 9 tops is connected with steel rope S1 on the supporting base 2 through after poppet pulley H7 (and tailstock pulley H5), also passes through steel rope S3 and is connected with periproct point of connection 601.
The arm frame of tower crane of the utility model whole parts that mechanism forms tower crane of taking down the exhibits automatically in the air become linkage structure each other.Interior body of the tower 4 tops are provided with and the reciprocal after poppet 12 of crane arm.It is hinged through cat head bearing pin 11 and interior body of the tower 4 tops at lower edge that root saves 6 tail ends, goes back hinged tail support 9 on the cat head bearing pin 11.Afterbody support 9 is door shape or triangular frame structure.Root saves 6 front ends and winds up hingedly through middle bearing pin 5 and middle segmentum intercalaris 7 winding up, and middle segmentum intercalaris 7 front ends are hinged with anterior joint 8 lower edges through preceding bearing pin 10 at lower edge.Root joint 6 can be parallel with body of the tower to body of the tower direction rotary folding.In segmentum intercalaris 7 save 8 to be folded to two jibs at lower edge parallel with anterior, similar diamond structure (see figure 1).In segmentum intercalaris 7 can be along middle bearing pin 5 rotary foldings to saving 6 parallel with root.Support 13 in the middle of also being hinged with on the middle bearing pin 5.Middle support 13 tops are provided with frame point of connection 131 and a middle frame pulley H2 in the steel rope.Middle support 13 is a door shape planar structure.In the segmentum intercalaris 7 anterior also spider 14 through the point articulated rigid construction of A that winds up.Spider 14 is provided with steel rope and connects B point and C point.Spider is designed to when jib launches fully, line that B point and C are ordered and fixed length rope S5, S6 in-line.
Outer body of the tower 3 tops are provided with the outer tower point of connection 301 of steel rope.Bottom in the interior body of the tower 4 is provided with bottom pulley H9, and the top is provided with top pulleys H8.After poppet 12 tops are provided with two support pulley H6, H7; Afterbody saves the place of winding up, 6 rear end and is provided with two tailstock pulley H4, H5; The middle section is provided with a stage casing pulley H3; In segmentum intercalaris 7 rear portions places be provided with a steel rope point of connection 701, anterior joint 8 rear end of winding up is provided with a first joint pulley H1, the middle section has the first joint of steel rope point of connection 801.
Outer tower point of connection 301 connects steel rope S2, and steel rope S2 is connected with middle joint point of connection 701 through said bottom pulley H9, upper sheave H8, after poppet pulley H6, tailstock pulley H4, stage casing pulley H3, (and middle frame pulley H2); Tailstock point of connection 901 is connected with middle frame point of connection 131 through steel rope S4; Middle frame point of connection 131 is connected with the B point of spider 14 through steel rope S5; The C point of spider 14 is connected with first joint point of connection 801 through steel rope S6.
In the utility model, as special case, afterbody support 9, afterbody joint 6 and interior body of the tower 4 shared cat head bearing pins 11 are hinged.Be connected a shared centre bearing pin 5 between middle support 13 and root joint 6 and the middle segmentum intercalaris 7.But, in both can being hinged on, afterbody support 9 on the body of the tower 4, also can be hinged on the afterbody joint 6 according to the practical implementation needs.Middle support 13 also can be hinged between root joint 6 and the middle segmentum intercalaris 7, particularly on other positions of middle segmentum intercalaris 7.
Use the utility model three folding arm arm frame of tower crane mechanism that takes down the exhibits automatically in the air, at first start the engine installation that rises and retires, body of the tower together with crane arm, is erected plumbness from horizontality.
Start winch 15 afterwards, Wound steel rope progressively stretches out interior body of the tower 4 through pulley 16,17 in outer body of the tower 3; Fixed length steel rope S2 is outwards discharged by body of the tower: the length in the body of the tower scope shortens; Length in the jib scope is elongated, and along with the release of fixed length steel rope S2, middle segmentum intercalaris 7 outwards launches around middle bearing pin 5 rotations under self-gravity action together with front portion joint 8; Front portion joint 8 is sagging naturally parallel with body of the tower, forms state shown in Figure 3.Fig. 3 also demonstrates fixed length rope S1 and saves 6 afterbody pulley H5 positions, fixed length rope S2 in after poppet pulley H7 position, 12 end with root and save 6 afterbody pulley H4 positions, fixed length rope S6 at root and be in the state of being folded in anterior 8 the pulley H1 position saved of jib.
Interior body of the tower 4 continues to stretch out, and fixed length steel rope S1 raises with body of the tower, is progressively strained by relaxed state, drives afterbody support 9 conter clockwises and erects to the body of the tower sideway swivel, erects in the process, and middle segmentum intercalaris 7 continues to launch (as shown in Figure 4) together with front portion joint 8.
Interior body of the tower 4 continues to stretch out; Along with interior body of the tower 4 progressively raises; The fixed length steel rope S3 that is initially in relaxed state is progressively strained, after the fixed length steel rope S3 tension, with fixed length steel rope S1 combined action; Pull-up crane arm root joint 6 is around cat head bearing pin 11 rotary expansions, and segmentum intercalaris 7, anterior joint 8 protract and launch (as shown in Figure 5) in the drive.
Interior body of the tower 4 continues to stretch out, along with afterbody support 9 rotates also progressively tensioning of fixed length steel rope S4; Support 13 rotates counterclockwise around middle bearing pin 5 in the middle of driving, and drives fixed length steel rope S5 translation together, and fixed length steel rope S5 drives spider and rotates around the A point; Tighten up fixed length steel rope S6, anterior joint 8 is rotated around preceding bearing pin 10 protract, when arriving the desired location; Frame pulley H2 grooving in support 13 ends in the middle of fixed length steel rope S2 gets into automatically, generation is folded to, and the rotating torque of segmentum intercalaris 7 and anterior joint 8 relative root joints 6 is by fixed length steel rope S4 and fixed length steel rope S5 opposing in making; Carry system up to forming static determinacy, accomplish the expansion (like Fig. 6, shown in Figure 7) of jib.
More than narrated jib by the process of folded state to deployed condition.Jib by deployed condition to the process of folded state in contrast.Need to prove; Diagram has only provided the signal that steel rope S1, steel rope S2, steel rope S6 contact and break away from associated pulleys; Jib take down the exhibits position and the change in location trend of each steel rope and associated pulleys in the motion only are described, each fixed length steel rope and associated pulleys might not contact or break away from graphic state.
In the jib folding process; The fixed length steel rope S1 initial stage is saved the tailstock pulley H5 that 6 afterbodys wind up through after poppet pulley H7 and the crane arm root that is arranged on body of the tower top-support 12 tops; Be folded to; Later stage raises with body of the tower and jib launches, and progressively breaks away from tailstock pulley H5 and after poppet pulley H7.Forwardly save in 8 folding processes, fixed length steel rope S6 will get into automatically and be arranged among the pulley H1 that winds up anterior joint 8 rear ends, is folded to (see figure 7).
Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technical scheme of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (2)
1. folding arm arm frame of tower crane mechanism that takes down the exhibits automatically in the air comprises that bearing chassis (1) connects supporting base (2) through turning gear, and supporting base (2) is gone up hinged outer body of the tower (3)
,Body of the tower (4) in the interior socket of outer body of the tower (3); Body of the tower connects flexible engine installation; The cross section that the connection of interior body of the tower (4) top saves formation by root joint (6), middle segmentum intercalaris (7) and anterior joint (8) three is leg-of-mutton three and turns up weighing arm; Also comprise afterbody support (9) and middle support (13); The tailstock point of connection (901) on afterbody support (9) top is connected with supporting base (2) through steel rope S1 and through after poppet pulley (H7) and tailstock pulley (H5); Also be connected with periproct point of connection (601) through steel rope S3, it is characterized in that: whole component set-ups of composition tower crane are linkage structure each other, and said interior body of the tower (4) top is provided with and the reciprocal after poppet of crane arm (12); Said root joint (6) tail end is hinged through cat head bearing pin (11) and interior body of the tower (4) top at lower edge; Said cat head bearing pin (11) is gone up also hinged tail support (9), said root joint (6) front end wind up wind up through middle bearing pin (5) and middle segmentum intercalaris (7) hinged, said in segmentum intercalaris (7) front end hinged with anterior joint (8) lower edge at lower edge through preceding bearing pin (10); Support (13) in the middle of also being hinged with on the bearing pin (5) in the middle of said; Support (13) top is provided with a frame point of connection (131) and a middle frame pulley (H2) in the steel rope in the middle of said, and said middle segmentum intercalaris (7) winds up the front portion also through the point articulated spider of A (14), and said spider (14) is provided with steel rope and connects B point and C point; Said outer body of the tower (3) top is provided with the outer tower point of connection (301) of steel rope; Bottom in said in the body of the tower (4) is provided with bottom pulley (H9), and the top is provided with top pulleys (H8), and said after poppet (12) top is provided with two support pulleys (H6, H7); Said afterbody joint (6) place of winding up, rear end is provided with two tailstock pulleys (H4, H5); The middle section is provided with a stage casing pulley (H3), and place, said middle segmentum intercalaris (7) rear portion is provided with a steel rope point of connection (701), and said anterior joint (8) rear end is provided with a first pulley (H1) that saves; The middle section has the first joint of steel rope point of connection (801); Said outer tower point of connection (301) connects steel rope S2, and said steel rope S2 is connected with said middle joint point of connection (701) through said bottom pulley (H9), upper sheave (H8), after poppet pulley (H6), tailstock pulley (H4), stage casing pulley H3 and middle frame pulley (H2) successively, and said tailstock point of connection (901) also is connected with said middle frame point of connection (131) through steel rope S4; Frame point of connection (131) is connected with the B point of said spider (14) through steel rope S5 in said, and the C point of said spider (14) is connected with said first joint point of connection (801) through steel rope S6.
2. the three folding arm arm frame of tower crane according to claim 1 mechanism that takes down the exhibits automatically in the air is characterized in that: said spider (14) is rigid structure frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120515282 CN202415027U (en) | 2011-12-12 | 2011-12-12 | Aerial automatic folding mechanism of boom of triple-knuckle tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120515282 CN202415027U (en) | 2011-12-12 | 2011-12-12 | Aerial automatic folding mechanism of boom of triple-knuckle tower crane |
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| Publication Number | Publication Date |
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| CN202415027U true CN202415027U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120515282 Withdrawn - After Issue CN202415027U (en) | 2011-12-12 | 2011-12-12 | Aerial automatic folding mechanism of boom of triple-knuckle tower crane |
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| CN (1) | CN202415027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431910A (en) * | 2011-12-12 | 2012-05-02 | 廊坊凯博建设机械科技有限公司 | Arm rack overhead automatic folding and unfolding mechanism of tri-fold arm tower crane and folding and unfolding method thereof |
-
2011
- 2011-12-12 CN CN 201120515282 patent/CN202415027U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431910A (en) * | 2011-12-12 | 2012-05-02 | 廊坊凯博建设机械科技有限公司 | Arm rack overhead automatic folding and unfolding mechanism of tri-fold arm tower crane and folding and unfolding method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20130724 |
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| RGAV | Abandon patent right to avoid regrant |