CN104444864A - Movable crane and supporting leg structure thereof - Google Patents
Movable crane and supporting leg structure thereof Download PDFInfo
- Publication number
- CN104444864A CN104444864A CN201410497116.0A CN201410497116A CN104444864A CN 104444864 A CN104444864 A CN 104444864A CN 201410497116 A CN201410497116 A CN 201410497116A CN 104444864 A CN104444864 A CN 104444864A
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- China
- Prior art keywords
- supporting legs
- movable
- movable supporting
- leg structure
- crane
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes 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
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
Abstract
The invention relates to a movable crane and a supporting leg structure thereof. The supporting leg structure at least comprises first movable supporting legs and second movable supporting legs, wherein the first movable supporting legs which are stretchable in the width direction of a frame are respectively arranged on the left side and the right side of the frame in the length direction of a car crane; an extension end of each first movable supporting leg is hinged to one end of the second movable supporting leg, so that the second movable supporting leg can swing in a horizontal plane surrounding a hinge point of the first movable supporting leg; the other end of the second movable supporting leg is fixedly connected with a vertical supporting leg of the movable crane. By improving the supporting leg structure of the movable crane, the problem that the span of the car is limited can be solved.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of movable crane and leg structure thereof.
Background technology
Hoisting crane refers to many actions elevator machinery of vertical-lift within the specific limits and horizontal carrying heavy goods.Movable crane is generally equipped with four movable supporting legs, and when hoisting operation, four supporting legs stretch out, and for supporting whole fuselage, bear total weight during craning weight of same operation.In order to stability during lift crane lift heavy, need to increase supporting leg span, this just needs the length increasing supporting leg.But because the width of relevant laws and regulations to movable crane car load has strict restriction, it constrains the further increase of supporting leg span.Therefore, need design one namely to meet relevant laws and regulations requirement, effectively can promote again the leg structure of car load span, to promote the lift heavy safety and stability of car load further.
The leg structure that current movable crane is conventional has two kinds of forms, such as: H type leg structure (as shown in Figure 1) and oscillating support structure (as shown in Figure 2), all meet span demand by the flexible of movable supporting legs, the two still exist in telescopic process below Railway Project:
(1) according to the requirement of current industry laws to movable crane car load width, in H type leg structure, the length of movable supporting legs also has certain upper limit requirement, therefore cannot continue to lengthen, and causes the span of car load to be correspondingly restricted.
(2) in order to meet vehicle performance requirement, movable crane full car length is also unsuitable long, and therefore, in oscillating support structure, the length of movable supporting legs is also restricted, and can not continue to lengthen, thus the continuation limiting span strengthens.
This shows that prior art exists the demand improved above-mentioned technical matters.
Summary of the invention
The object of the invention is the movable crane and the leg structure thereof that propose a kind of improvement, which solve the problem that car load span is limited.
For achieving the above object, the invention provides following technical scheme:
A kind of movable crane leg structure, it at least comprises the first movable supporting legs and the second movable supporting legs, wherein: the forward and backward arranged on left and right sides on the length direction of the vehicle frame of described car hosit arranges described first movable supporting legs that can stretch along the Width of described vehicle frame respectively; The external part of the first movable supporting legs described in each and one end of described second movable supporting legs are hinged, and described second movable supporting legs is swung in horizontal surface around the hinge-point of itself and described first movable supporting legs; The vertical leg being fixedly connected with described movable crane of the other end of described second movable supporting legs.
Further, be greater than 0 degree with the angle of the length direction of described vehicle frame in described second movable supporting legs swing process and be less than 90 degree.
Further, described second movable supporting legs is 0 degree with the angle of the length direction of described vehicle frame after retracting completely.
Further, also comprise the first telescoping mechanism, be connected by described first telescoping mechanism is flexible between described vehicle frame with described first movable supporting legs.
Further, also comprise the second telescoping mechanism, be connected by described second telescoping mechanism is flexible between described vehicle frame with described second movable supporting legs.
Further, also comprise the second telescoping mechanism, be connected by described second telescoping mechanism is flexible between described first movable supporting legs with described second movable supporting legs.
Further, described first movable supporting legs stretches out and described second movable supporting legs shrinks can form H type all completely.
Further, described second movable supporting legs all stretches out and can form X-type.
Further, described first movable supporting legs and/or described second movable supporting legs comprise fixed supporting leg and are sleeved on multistage support leg mechanism in described fixed supporting leg, are provided with telescopic oil cylinder between described fixed supporting leg and described multistage support leg mechanism.
The present invention also provides a kind of movable crane, and it comprises the movable crane leg structure in the various embodiments described above.
Based on technique scheme, advantage of the present invention is:
Because the present invention is provided with the first movable supporting legs and the second movable supporting legs, before on the length direction of the vehicle frame of car hosit, after a left side, right both sides arrange first movable supporting legs that can stretch along the Width of vehicle frame respectively, the external part of each the first movable supporting legs and one end of the second movable supporting legs are hinged, second movable supporting legs is swung in horizontal surface around the hinge-point of itself and the first movable supporting legs, the vertical leg being fixedly connected with movable crane of the other end of the second movable supporting legs, therefore, stretch out at the first movable supporting legs and can obtain larger span, on this basis, if continue, the second movable supporting legs is shown, larger span can be obtained, thus the restriction of movable crane car load width and length can be broken away to a certain extent, solve the problem that the span of car load is limited, and then the lift heavy safety and stability of car load is promoted.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of H type leg structure in prior art;
Fig. 2 is the structural representation of oscillating support structure in prior art;
Fig. 3 is the structural representation of movable crane leg structure provided by the present invention;
Fig. 4 is the close-up schematic view in Fig. 3;
Fig. 5 a-5c is the course of action schematic diagram of supporting leg.
Detailed description of the invention
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limiting the scope of the invention can not be interpreted as.
Fig. 3 and Fig. 4 is the structural representation of movable crane leg structure one embodiment provided by the present invention.As shown in Figure 3 and Figure 4, movable crane leg structure in the present embodiment at least comprises the first movable supporting legs 1 and the second movable supporting legs 2, wherein: before on the length direction of the vehicle frame 5 of described car hosit, arrange respectively can along flexible the first movable supporting legs 1 of the Width of vehicle frame 5 left side at (front of rotary support 6 and rear) and right side afterwards, the external part of each the first movable supporting legs 1 is hinged with one end of the second movable supporting legs 2 (being connected as by bearing pin 7), second movable supporting legs 2 can be swung in horizontal surface around the hinge-point of itself and the first movable supporting legs 1, the vertical leg 8 being fixedly connected with movable crane of the other end of the second movable supporting legs 2.In the present embodiment, be greater than 0 degree with the angle of the length direction of vehicle frame 5 in the second movable supporting legs 2 swing process and be less than 90 degree.
When using movable crane leg structure operation, first the first movable supporting legs 1 is made to be with the second movable supporting legs 2 be automatically connected on the first movable supporting legs 1 to stretch out to the left and right sides of vehicle frame 5, after the first movable supporting legs 1 extend out to predeterminated position, the second movable supporting legs 2 is made to arrange to the direction away from vehicle frame 5 again, the span position needed for final arrival.When regaining movable crane leg structure, by the inverse operation flow operations with foregoing description.Therefore the movable supporting legs in movable crane leg structure provided by the present invention can realize first stretching and swing afterwards.Ensureing that on the basis that vehicle width and length satisfy regulatory and correlated performance require, this leg structure can increase the span of car load to greatest extent, thus the lift heavy safety and stability of effective lift crane.
First movable supporting legs 1 stretches out, and, under all complete holosystolic situation of second movable supporting legs 2, leg structure provided by the invention is rendered as H type, that is, if all stretched out toward respective outside by each first movable supporting legs 1 separately, it will have the advantage of H type leg structure of the prior art.Second movable supporting legs 2 all stretches out and can form X-type, namely has the advantage of X-type leg structure of the prior art.If separately the hinge-point of each second movable supporting legs 2 around itself and the first movable supporting legs 1 is arranged in horizontal surface, that is, when first movable supporting legs 1 does not stretch out that only the second movable supporting legs 2 is shown, can be used as oscillating support to use, this operating mode can meet the narrow operating needs of Active workings.If the first movable supporting legs 1 and the second movable supporting legs 2 launched all completely, this kind of operating mode then can adapt to the user demand of large span.This shows: because movable crane leg structure provided by the present invention has the advantage of H type leg structure and oscillating support structure concurrently, therefore can according to actual user demand, adjust the range of extension of the first movable supporting legs 1 and the second movable supporting legs 2, adaptation condition increases.
When the second movable supporting legs 2 is retracted completely, it is 0 degree with the angle of the length direction of vehicle frame 5.Namely completely parallel with the length direction of vehicle frame 5, the usual corresponding off working state of this operating mode, by being shunk by movable supporting legs, can save and take up an area space.
In order to realize the flexible of the first movable supporting legs 1, the present invention also comprises the first telescoping mechanism 3, is connected between vehicle frame 5 with the first movable supporting legs 1 by the first telescoping mechanism 3 is flexible.In the present embodiment, first telescoping mechanism 3 can adopt but be not limited to telescopic oil cylinder, the piston rod of this telescopic oil cylinder and cylinder barrel are connected to vehicle frame 5 and the first movable supporting legs 1, or the piston rod of telescopic oil cylinder and cylinder barrel are connected to the first movable supporting legs 1 and vehicle frame 5.Like this, by the relative constriction of the piston rod of telescopic oil cylinder and cylinder barrel with stretch out, the first movable supporting legs 1 can be driven to shrink and stretch out.
Similarly, realize the flexible of the second movable supporting legs 2, the present invention also comprises the second telescoping mechanism 4, is connected between vehicle frame 5 with the second movable supporting legs 2 by the second telescoping mechanism 4 is flexible.In the present embodiment, second telescoping mechanism 4 can adopt but be not limited to telescopic oil cylinder, this can adopt but be not limited to telescopic oil cylinder, the piston rod of this telescopic oil cylinder and cylinder barrel are connected to vehicle frame 5 and the second movable supporting legs 2, or the piston rod of telescopic oil cylinder and cylinder barrel are connected to the second movable supporting legs 2 and vehicle frame 5.Like this, by the relative constriction of the piston rod of telescopic oil cylinder and cylinder barrel with stretch out, the second movable supporting legs 2 can be driven to shrink and stretch out.
Also can be connected between the first movable supporting legs 1 with the second movable supporting legs 2 by the second telescoping mechanism 4 is flexible.Not identical with above-described embodiment: the second telescoping mechanism 4 is connected between the first movable supporting legs 1 and the second movable supporting legs 2, in this way, can stretch out in process at the first telescoping mechanism 3, second telescoping mechanism 4 does not need to stretch, that is, this kind of connection mode does not have the requirement of synchronization telescope to the first telescoping mechanism 3 and the second telescoping mechanism 4.With the second telescoping mechanism 4 is fixed on compared with the situation on vehicle frame 5 in above-described embodiment, in the process that first telescoping mechanism 3 is flexible, second telescoping mechanism 4 also needs to carry out synchronization telescope, guarantee second movable supporting legs 2 moves with the first movable supporting legs 1 smoothly, and what require the first telescoping mechanism 3 and the second telescoping mechanism 4 under this kind of situation must can meet synchronization telescope.
It should be noted that, the first movable supporting legs 1 and/or the first telescoping mechanism 3 can be perpendicular with the length direction of vehicle frame 5, but are not limited thereto.
Fig. 5 a-5c is the course of action schematic diagram of movable supporting legs.As shown in Figure 5 a, under the non-operating condition of described car hosit, the first telescoping mechanism 3 and the second telescoping mechanism 4 full reduced, the first movable supporting legs 1 and the second movable supporting legs 2 are full reduced state.First movable supporting legs 1 only external part stretches out in outside vehicle frame 5, is connected with the second movable supporting legs 2.The second movable supporting legs 2 now parallels with the length direction of vehicle frame 5, and is close to vehicle frame 5.It can thus be appreciated that the movable crane leg structure floor area under off working state is little, is mainly used in the limit for width requirement meeting on-road vehicle.
As shown in Fig. 5 b and Fig. 5 c, under car hosit operating condition, first, first telescoping mechanism 3 is protruding, thus the first movable supporting legs 1 is with the second movable supporting legs 2 be automatically connected on the first movable supporting legs 1 to stretch out to the left and right sides of vehicle frame 5, after the first telescoping mechanism 3 extend out to predeterminated position, then makes the second telescoping mechanism 4 protruding, thus drive the second movable supporting legs 2 to arrange to the direction away from vehicle frame 5, the span position needed for final arrival.
In above-described embodiment, first movable supporting legs 1 and/or the second movable supporting legs 2 can comprise fixed supporting leg 11 and be sleeved on multistage support leg mechanism 12 in fixed supporting leg 11, are provided with telescopic oil cylinder (not shown) between fixed supporting leg 11 and multistage support leg mechanism 12.Certainly, can according to actual condition needs, multistage support leg mechanism 12 is arranged to comprise at least one-level telescopic outrigger (not shown), and nested setting successively between described telescopic outrigger at different levels, use can be chosen flexibly according to actual needs like this.
The present invention also provides a kind of movable crane, and it comprises the movable crane leg structure in the various embodiments described above, and other parts of described movable crane are prior art, no longer launches to describe at this.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (10)
1. a movable crane leg structure, it is characterized in that, at least comprise the first movable supporting legs and the second movable supporting legs, wherein: the forward and backward arranged on left and right sides on the length direction of the vehicle frame of described car hosit arranges described first movable supporting legs that can stretch along the Width of described vehicle frame respectively; The external part of the first movable supporting legs described in each and one end of described second movable supporting legs are hinged, and described second movable supporting legs is swung in horizontal surface around the hinge-point of itself and described first movable supporting legs; The vertical leg being fixedly connected with described movable crane of the other end of described second movable supporting legs.
2. movable crane leg structure as claimed in claim 1, is characterized in that, be greater than 0 degree and be less than 90 degree in described second movable supporting legs swing process with the angle of the length direction of described vehicle frame.
3. movable crane leg structure as claimed in claim 1, is characterized in that, described second movable supporting legs is 0 degree with the angle of the length direction of described vehicle frame after retracting completely.
4. the movable crane leg structure according to any one of claims 1 to 3, is characterized in that, also comprises the first telescoping mechanism, is connected between described vehicle frame with described first movable supporting legs by described first telescoping mechanism is flexible.
5. the movable crane leg structure according to any one of Claims 1 to 4, is characterized in that, also comprises the second telescoping mechanism, is connected between described vehicle frame with described second movable supporting legs by described second telescoping mechanism is flexible.
6. the movable crane leg structure according to any one of Claims 1 to 4, is characterized in that, also comprises the second telescoping mechanism, is connected between described first movable supporting legs with described second movable supporting legs by described second telescoping mechanism is flexible.
7. the movable crane leg structure according to any one of claim 1 ~ 6, is characterized in that, described first movable supporting legs stretches out and described second movable supporting legs shrinks can form H type all completely.
8. the movable crane leg structure according to any one of claim 1 ~ 6, is characterized in that, described second movable supporting legs all stretches out and can form X-type.
9. movable crane leg structure as claimed in claim 1, it is characterized in that, described first movable supporting legs and/or described second movable supporting legs comprise fixed supporting leg and are sleeved on multistage support leg mechanism in described fixed supporting leg, are provided with telescopic oil cylinder between described fixed supporting leg and described multistage support leg mechanism.
10. a movable crane, is characterized in that, comprises the movable crane leg structure according to any one of claim 1 ~ 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497116.0A CN104444864A (en) | 2014-09-25 | 2014-09-25 | Movable crane and supporting leg structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497116.0A CN104444864A (en) | 2014-09-25 | 2014-09-25 | Movable crane and supporting leg structure thereof |
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| CN104444864A true CN104444864A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410497116.0A Pending CN104444864A (en) | 2014-09-25 | 2014-09-25 | Movable crane and supporting leg structure thereof |
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| CN (1) | CN104444864A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106276633A (en) * | 2016-10-27 | 2017-01-04 | 安徽柳工起重机有限公司 | Light-duty traction type crane |
| CN106428285A (en) * | 2016-09-14 | 2017-02-22 | 济南华北升降平台制造有限公司 | Intelligent walking robot for construction of high-speed rail and subway tunnels and installation of auxiliary facilities |
| CN111924726A (en) * | 2020-09-18 | 2020-11-13 | 湖南三一中型起重机械有限公司 | Landing leg structure and mobile crane |
| CN112062004A (en) * | 2020-09-22 | 2020-12-11 | 河南远东重工机械制造有限公司 | Crane frame with supporting function |
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| DE3635328A1 (en) * | 1986-10-17 | 1988-04-28 | Johann Werner | VEHICLE SUPPORTING DEVICE FOR LOADING CRANES OR THE LIKE |
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| CN202243397U (en) * | 2011-08-17 | 2012-05-30 | 三一汽车起重机械有限公司 | Movable landing leg with variable span and movable type engineering machinery provided with movable landing leg |
| CN102490696A (en) * | 2011-12-21 | 2012-06-13 | 三一重工股份有限公司 | Engineering machine and supporting leg structure thereof |
| CN202729655U (en) * | 2012-08-24 | 2013-02-13 | 徐州徐工随车起重机有限公司 | Integrated frame of articulating boom lift vehicle crane |
| CN203065064U (en) * | 2012-12-26 | 2013-07-17 | 三一重工股份有限公司 | Swinging supporting leg and engineering machinery |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3635328A1 (en) * | 1986-10-17 | 1988-04-28 | Johann Werner | VEHICLE SUPPORTING DEVICE FOR LOADING CRANES OR THE LIKE |
| CN201292227Y (en) * | 2008-11-19 | 2009-08-19 | 三一汽车制造有限公司 | Front swing support of truck crane and truck crane having the same |
| CN202243397U (en) * | 2011-08-17 | 2012-05-30 | 三一汽车起重机械有限公司 | Movable landing leg with variable span and movable type engineering machinery provided with movable landing leg |
| CN102490696A (en) * | 2011-12-21 | 2012-06-13 | 三一重工股份有限公司 | Engineering machine and supporting leg structure thereof |
| CN202729655U (en) * | 2012-08-24 | 2013-02-13 | 徐州徐工随车起重机有限公司 | Integrated frame of articulating boom lift vehicle crane |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428285A (en) * | 2016-09-14 | 2017-02-22 | 济南华北升降平台制造有限公司 | Intelligent walking robot for construction of high-speed rail and subway tunnels and installation of auxiliary facilities |
| CN106276633A (en) * | 2016-10-27 | 2017-01-04 | 安徽柳工起重机有限公司 | Light-duty traction type crane |
| CN106276633B (en) * | 2016-10-27 | 2018-08-28 | 安徽柳工起重机有限公司 | Light-duty traction type crane |
| CN111924726A (en) * | 2020-09-18 | 2020-11-13 | 湖南三一中型起重机械有限公司 | Landing leg structure and mobile crane |
| CN112062004A (en) * | 2020-09-22 | 2020-12-11 | 河南远东重工机械制造有限公司 | Crane frame with supporting function |
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Application publication date: 20150325 |