CN101746677B - Crane - Google Patents
Crane Download PDFInfo
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- CN101746677B CN101746677B CN2008101851123A CN200810185112A CN101746677B CN 101746677 B CN101746677 B CN 101746677B CN 2008101851123 A CN2008101851123 A CN 2008101851123A CN 200810185112 A CN200810185112 A CN 200810185112A CN 101746677 B CN101746677 B CN 101746677B
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- turntable
- base
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- counterweight
- hoisting crane
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Abstract
The present invention discloses a crane comprising a bipod and a balance weight hoisting device. The bipod is provided with a front support component and a collapsible rear pull component. The balance weight hoisting device comprises a suspending device and a jacking device. The balance weight of the crane is suspended below the front support component by the suspending device. The front support component, the suspending device and the balance weight rise or fall under the action of the jacking device. When the jacking device extends, the front support component can be jacked by the jacking device, and the balance weight is driven by the suspending device to simultaneously rise in the process. Thus, the bipod and the balance weight can be jacked by only one jacking device, multiple parts, such as pumps, valves, pipes, etc are saved. The structure of the crane is simplified, which facilitates the arrangement of multiple parts on a revolving platform. Meanwhile, the reliability of the crane is improved, and the cost is reduced.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of hoisting crane with Shears.
Background technology
On hoisting crane, be typically provided with Shears, the main effect of Shears is the strained conditiones such as loading angle that change the luffing steel rope, thereby realizes the luffing of arm smoothly.
Support part and back draw piece before Shears generally includes, the bottom of said preceding support part is articulated in the middle part of the turntable of hoisting crane substantially, and the bottom of said back draw piece is articulated in the rear portion of the turntable of hoisting crane substantially; The top of the top of support part and said back draw piece is hinged before said.Said back draw piece can fold, and Shears can be positioned on the turntable when it is in folded state, and said preceding support part and said back draw piece erect and form substantially " people " font structure when it is in stretching state.Change between the low order position when usually promoting upper level position and the transportation of Shears when the work through special oil cylinder.
In addition, down, the turntable of hoisting crane need be installed counterweight in working order, thus the weight of its loads that hangs of balance.Therefore, corresponding construction need be set when needed counterweight is installed on the turntable of hoisting crane.At present, often through special two oil cylinders that are provided with balance weight hanging on turntable.
It is thus clear that existing hoisting crane need be provided with a plurality of oil cylinders, so that realize the lifting of Shears and counterweight, more, the structure more complicated of parts such as therefore relevant Hydraulic Pump, valve, pipeline; And numerous mechanisms need be set on the turntable, its space is comparatively nervous, so the layout of associated components is comparatively difficult, reliability is relatively low.In addition, more, the complex structure of parts also causes the cost of hoisting crane higher.
Therefore, how under the prerequisite that keeps original function, simplifying the structure of hoisting crane, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of hoisting crane, have comparatively simple structure and lower cost.
For solving the problems of the technologies described above; The present invention provides a kind of hoisting crane, comprises Shears and counterweight bont, support part and folding back draw piece before said Shears has; Said counterweight bont further comprises suspension gear and jacking apparatus; Can the balance weight hanging of said hoisting crane be supportted part before said through said suspension gear, said jacking apparatus is arranged between turntable and the said preceding support part, and the luffing device and the said jacking apparatus of said preceding support part are same device; Said preceding support part, suspension gear and counterweight hoist simultaneously under the effect of said jacking apparatus or fall; Said suspension gear comprise hang on said before support part below drag-line, be used to hold up the base of said counterweight, and the attaching parts that connects said drag-line and base, said base and said turntable are provided with connecting device; Rise be raised to the desired location after said base be fixedly connected on said turntable through said connecting device; The number of said connecting device is at least two, and is arranged at respectively between the front side and said turntable of said base, and between the rear side of said base and the said turntable; Wherein, be positioned at the residing position of connecting device of the rear side of said base, be higher than the residing position of connecting device of the front side that is positioned at said base.
Preferably, said drag-line comprises the fore stay of the front side that is used to connect said attaching parts, and the back stay that is used to connect the rear side of said attaching parts.
Preferably, said before the bottom-hinged of support part connecting panel is arranged, said fore stay and back stay respectively with the bottom-hinged of said connecting panel; Three hinge-point distributions triangular in shape of said connecting panel and said preceding support part, said fore stay and said back stay.
Preferably, said jacking apparatus is specially jacking cylinder, and the two ends of said jacking cylinder are hinged with said turntable and said preceding support part respectively.
Preferably, the axis of the jointed shaft of said jacking cylinder and said preceding support part overlaps with the axis of said connecting panel with the jointed shaft of said preceding support part substantially; The hinge of said jacking cylinder and said turntable, the hinge of said back draw piece and turntable and said before support between the hinge of part and turntable.
Preferably, said counterweight is installed on the left and right sides of said base, so that above the middle part of said base, the space that holds said jacking apparatus is provided.
Hoisting crane provided by the present invention comprises Shears and counterweight bont; Support part and folding back draw piece before said Shears has; Said counterweight bont further comprises suspension gear and jacking apparatus; The counterweight of said hoisting crane hangs on said preceding support part below by said suspension gear, and said preceding support part, said suspension gear and said counterweight hoist under the effect of said jacking apparatus or fall.When the elongation of said jacking apparatus, said before the support part can be by said jacking apparatus jack-up, under the drive of counterweight described in this process at said suspension gear with hoisting simultaneously; Therefore; Only need a jacking apparatus can accomplish hoisting of Shears and counterweight, thereby saved many parts such as pump, valve, pipeline, simplified the structure of hoisting crane; Be convenient to the layout of each parts on turntable, also improved simultaneously hoisting crane reliability, reduced cost.
In a kind of specific embodiment, said before the bottom-hinged of support part connecting panel is arranged, said fore stay and back stay respectively with the bottom-hinged of said connecting panel; Three hinge-point distributions triangular in shape of said connecting panel and said preceding support part, said fore stay and said back stay; Be positioned at the residing position of connecting device of the rear side of said base, be higher than the residing position of connecting device of the front side that is positioned at said base.Like this; In the process of hoisting, the connecting device that is positioned at the rear side of said base can at first be connected with said turntable, continues the said jacking apparatus of elongation then; Said connecting panel will rotate suitable angle; The connecting device of the front side that is positioned at said base is connected with said turntable, thereby the connecting device of both sides is difficult to the problem of centering simultaneously before and after having solved smoothly, makes the installation process of counterweight more simple and easy to do.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of hoisting crane provided by the present invention;
Fig. 2 is the structural representation of a kind of specific embodiment of Shears provided by the present invention;
Fig. 3 is the structural representation of base provided by the present invention and a kind of specific embodiment of attaching parts;
Fig. 4 is the set-up mode scheme drawing of counterweight provided by the present invention and base in a kind of specific embodiment;
Fig. 5 is the set-up mode scheme drawing of connecting panel provided by the present invention and counterweight in a kind of specific embodiment.
The specific embodiment
Core of the present invention provides a kind of hoisting crane, has comparatively simple structure and lower cost.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of specific embodiment of hoisting crane provided by the present invention, and Fig. 2 is the structural representation of a kind of specific embodiment of Shears provided by the present invention.
In a kind of specific embodiment, hoisting crane provided by the present invention comprises chassis portion and is arranged at the turntable 1 on the chassis.Specifically adopted caterpillar chassis in this specific embodiment, but the concrete form on chassis obviously should not be limited to this.
Turntable 1 is provided with Shears, support part 2 and back draw piece 3 before said Shears mainly comprises.Preceding support part 2 specifically can be a strut, and its bottom can be articulated in the middle part of turntable 1, and the pulley in order to coiling luffing steel rope can be installed in its top.Back draw piece 3 can fold, and for example it can form by two parts are hinged; Said two parts all can be arm-ties.The bottom of back draw piece 3 is articulated in the afterbody (promptly hanging the end of the weight that carries away from hoisting crane) of turntable 1, the top of the top of back draw piece 3 and preceding support part 2 hinged (it is hinged that both can directly hingedly also can pass through other parts).
The hoisting crane that this specific embodiment provided also comprises jacking apparatus, and said jacking apparatus specifically can be a jacking cylinder 4, and the bottom of jacking cylinder 4 and turntable 1 are hinged, and its top and preceding support part 2 are hinged.
Before support part 2 can be under the effect of jacking apparatus (for example jacking cylinder 4) around its bottom rotation and rise, therefore back draw piece 3 is straightened, preceding support part 2 and back draw piece 3 final formation " people " font as shown in Figure 2.
The hoisting crane that this specific embodiment provided also comprises suspension gear, the below of support part 2 before said suspension gear can hang on the counterweight 7 of hoisting crane, thus make counterweight 7 act on turntable 1, and then balance crane hangs the gravity of the weight that carries.
Because the below of support part 2 before said suspension gear and counterweight 7 hang on; Therefore in the process that support part 2 rises under the effect of said jacking apparatus (for example jacking cylinder 4) before; Said suspension gear and counterweight 7 can be by with promoting, thereby the action of gravity that makes counterweight 7 is in turntable 1.Then, can continue to extend said jacking apparatus, draw piece 3 is straightened until the back.
Hoisting crane provided by the present invention can rise Shears through a jacking apparatus; And the lifting of realization counterweight 7; Therefore many parts such as pump, valve, pipeline have been saved; Simplified the structure of hoisting crane, be convenient to the layout of each parts on turntable 1, also improved simultaneously hoisting crane reliability, reduced cost.
Please be simultaneously with reference to figure 3, Fig. 3 is the structural representation of base provided by the present invention and a kind of specific embodiment of attaching parts.
Said suspension gear can comprise drag-line 5, base 6 and the attaching parts 9 that connects drag-line 5 and base 6.
It is tabular that base 6 is substantially, and counterweight 7 can be positioned on the base 6, and promoting base 6 can lift counterweight 7.Base 6 is equipped with attaching parts 9, and the bottom of attaching parts 9 connects base 6, and the top of attaching parts 9 connects drag-line 5.The below of support part 2 before drag-line 5 hangs on, its bottom is connected with the top of attaching parts 9.Like this, when current support part 2 hoisted under the effect of said jacking apparatus, whole suspension gear and counterweight 7 all hoisted thereupon.
In addition; The relevant position of base 6 and turntable 1 can be provided with connecting device; Can base 6 be fixedly connected on turntable 1 so that hoist in counterweight 7 through said connecting device after putting in place, like this, the gravity of counterweight 7 is directly born by turntable 1; The position of counterweight 7 is more stable in the working process, and reliability is improved.
Base 6 can be connected through connecting pin with turntable 1.For example, can be provided with the otic placode of pin-and-hole in the relevant position of base 6 and turntable 1 respectively, when hoist put in place the otic placode and the pin-and-hole of rear base 6 and turntable 1 of counterweight 6 overlaps, inserting connecting pin can be installed on base 6 on the turntable 1.
Can said otic placode all be set in front side of base 6 (near a side of turntable 1 centre of gration) and rear side (away from a side of turntable 1 centre of gration).For example, two otic placodes are set in the front side of base 6, these two otic placodes all have first pin-and-hole 61; Simultaneously in the relevant position of turntable 1 bottom two otic placodes are set, these two otic placodes all have second pin-and-hole 11; Connecting pin through running through first pin-and-hole 61 and second pin-and-hole 11 can firm banking 6 and the relative position of turntable 1.Rear side at base 6 also is provided with two otic placodes, and these two otic placodes all have the 3rd pin-and-hole 62; Simultaneously in the relevant position of turntable 1 bottom two otic placodes are set, these two otic placodes all have the 4th pin-and-hole 12; Connecting pin through running through the 3rd pin-and-hole 62 and the 4th pin-and-hole 12 also can firm banking 6 and the relative position of turntable 1.
In order reposefully counterweight 7 to be promoted to predetermined altitude, two groups of drag-lines 5 can be set, every group of drag-line includes fore stay 51 (being shown among Fig. 2) and back stay 52 (being shown among Fig. 2).Fore stay 51 is connected in the front side of attaching parts 9, for example, can be connected with the preceding adapter shaft 91 of being located at attaching parts 9 front sides; Back stay 52 is connected in the rear side of attaching parts 9, for example, can be connected with the back adapter shaft 92 of being located at attaching parts 9 rear sides.Front side described herein is meant the side near turntable 1 centre of gration, and rear side is meant the side away from turntable 1 centre of gration.
Obviously, be provided with at drag-line 5 under two groups the situation, attaching parts 9 can correspondingly be provided with two groups.The number of drag-line 5 and attaching parts 9 is not limited to this, can suitably adjust according to actual conditions.
Please be simultaneously with reference to figure 4, Fig. 4 is the set-up mode scheme drawing of counterweight provided by the present invention and base in a kind of specific embodiment.
Drag-line 5 can be directly connected in the below of strut member 2, also can be connected in the below of strut member 2 indirectly.
For example, can be at the bottom-hinged connecting panel 8 of strut member 2, connecting panel 8 can rotate with respect to strut member 2 around primary shaft 81.Back stay 52 can be through second 82 bottom that is articulated in connecting panel 8, and fore stay 51 can be articulated in the bottom of connecting panel 8 through third axle 83.The axis of above-mentioned primary shaft 81, second spool 82 and third axle 83 is parallel substantially, and not on same straight line, (is promptly forming leg-of-mutton three summits) perpendicular to the projection on three's the plane.
Simultaneously, be positioned at the residing position of connecting device of the rear side of base 6, be higher than the residing position of connecting device of the front side that is positioned at base 6.Back adapter shaft 92 residing positions also can be a little more than preceding adapter shaft 91 residing positions.
Like this; In the process of hoisting, the connecting device that is positioned at base 6 rear sides can at first be connected with turntable 1, continues the said jacking apparatus of elongation then; Connecting panel 8 will rotate suitable angle; The connecting device that is positioned at base 6 front sides is connected with turntable 1, thereby the connecting device of both sides is difficult to the problem of centering simultaneously before and after having solved smoothly, makes counterweight 6 more simple and easy to do with the installation process of turntable 1.
In addition, as previously mentioned, said jacking apparatus specifically can be a jacking cylinder 4, and the bottom of jacking cylinder 4 can be hinged with turntable 1, and the top of jacking cylinder 4 can be hinged with preceding support part 2.
The axis of the jointed shaft of jacking cylinder 4 and preceding support part 2 can overlap with the axis of connecting panel 8 with the jointed shaft of preceding support part 2 substantially; The force-bearing situation of support part 2 and jacking cylinder 4 is with even more ideal like this.
Please be simultaneously with reference to figure 5, Fig. 5 is the set-up mode scheme drawing of connecting panel provided by the present invention and counterweight in a kind of specific embodiment.
Can counterweight 7 be installed on the left and right sides of base 6; Thereby form suitable space (being between left and right sides two parts counterweight 7) above base 6 middle parts; In the telescopic process of jacking cylinder 4, above-mentioned space can hold jacking cylinder 4 and other jacking apparatus just.Can more reasonably utilize turntable 1 space like this, each parts can be arranged more easily.
More than hoisting crane provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (6)
1. hoisting crane; Comprise Shears and counterweight bont, support part and folding back draw piece before said Shears has, said counterweight bont further comprises suspension gear and jacking apparatus; Can the balance weight hanging of said hoisting crane be supportted part before said through said suspension gear; Said jacking apparatus be arranged at turntable and said before between the support part, said before luffing device and the said jacking apparatus of support part be same device, support part, suspension gear and counterweight before said and under the effect of said jacking apparatus, hoist simultaneously or fall; Said suspension gear comprises the drag-line that hangs on said preceding support part below, the base that is used to hold up said counterweight; And the attaching parts that connects said drag-line and base, said base and said turntable are provided with connecting device, rise be raised to the desired location after said base be fixedly connected on said turntable through said connecting device; It is characterized in that; The number of said connecting device is at least two, and is arranged at respectively between the front side and said turntable of said base, and between the rear side of said base and the said turntable; Wherein, be positioned at the residing position of connecting device of the rear side of said base, be higher than the residing position of connecting device of the front side that is positioned at said base.
2. hoisting crane as claimed in claim 1 is characterized in that, said drag-line comprises the fore stay of the front side that is used to connect said attaching parts, and the back stay that is used to connect the rear side of said attaching parts.
3. hoisting crane as claimed in claim 2 is characterized in that, said before the bottom-hinged of support part connecting panel is arranged, said fore stay and back stay respectively with the bottom-hinged of said connecting panel; Three hinge-point distributions triangular in shape of said connecting panel and said preceding support part, said fore stay and said back stay.
4. hoisting crane as claimed in claim 3 is characterized in that said jacking apparatus is specially jacking cylinder, and the two ends of said jacking cylinder are hinged with said turntable and said preceding support part respectively.
5. hoisting crane as claimed in claim 4 is characterized in that, the axis of the jointed shaft of said jacking cylinder and said preceding support part overlaps with the axis of said connecting panel with the jointed shaft of said preceding support part substantially; The hinge of said jacking cylinder and said turntable, the hinge of said back draw piece and turntable and said before support between the hinge of part and turntable.
6. like each described hoisting crane of claim 1 to 5, it is characterized in that said counterweight is installed on the left and right sides of said base, so that above the middle part of said base, the space that holds said jacking apparatus is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101851123A CN101746677B (en) | 2008-12-09 | 2008-12-09 | Crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101851123A CN101746677B (en) | 2008-12-09 | 2008-12-09 | Crane |
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| Publication Number | Publication Date |
|---|---|
| CN101746677A CN101746677A (en) | 2010-06-23 |
| CN101746677B true CN101746677B (en) | 2012-11-21 |
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| CN2008101851123A Active CN101746677B (en) | 2008-12-09 | 2008-12-09 | Crane |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885450B (en) * | 2010-07-26 | 2012-05-30 | 昆山三一机械有限公司 | Crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and method thereof |
| CN102530746B (en) * | 2010-12-07 | 2014-07-23 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane and superlift counterweight device |
| CN102491203A (en) * | 2011-12-13 | 2012-06-13 | 三一集团有限公司 | Crane and luffing mechanism thereof |
| CN103508338B (en) * | 2012-06-25 | 2015-09-23 | 徐工集团工程机械股份有限公司 | Propeller strut device and hoisting crane |
| CN103010975A (en) * | 2012-12-04 | 2013-04-03 | 大连华锐重工集团股份有限公司 | Propeller strut device of floating crane |
| CN105314546A (en) * | 2015-12-07 | 2016-02-10 | 徐州重型机械有限公司 | Hoisting machinery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2910884Y (en) * | 2006-06-29 | 2007-06-13 | 上海三一科技有限公司 | Automatic loading and unloading apparatus for crawler crane |
| CN201321353Y (en) * | 2008-12-09 | 2009-10-07 | 徐州重型机械有限公司 | Crane |
-
2008
- 2008-12-09 CN CN2008101851123A patent/CN101746677B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2910884Y (en) * | 2006-06-29 | 2007-06-13 | 上海三一科技有限公司 | Automatic loading and unloading apparatus for crawler crane |
| CN201321353Y (en) * | 2008-12-09 | 2009-10-07 | 徐州重型机械有限公司 | Crane |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-219486A 2000.08.08 |
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| CN101746677A (en) | 2010-06-23 |
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