CN107200279A - Leg structure and mobilecrane - Google Patents
Leg structure and mobilecrane Download PDFInfo
- Publication number
- CN107200279A CN107200279A CN201710455953.0A CN201710455953A CN107200279A CN 107200279 A CN107200279 A CN 107200279A CN 201710455953 A CN201710455953 A CN 201710455953A CN 107200279 A CN107200279 A CN 107200279A
- Authority
- CN
- China
- Prior art keywords
- leg
- supporting legs
- movable supporting
- guide pad
- overlap joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
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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
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
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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
- B66C5/00—Base supporting structures with legs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The present invention relates to a kind of leg structure and mobilecrane, leg structure includes：Fixed supporting leg (1) and movable supporting legs (2), the fixed supporting leg (1) includes Box-type enclosures (10), the movable supporting legs (2) are arranged in the Box-type enclosures (10) of the fixed supporting leg (1), and can be flexible relative to the fixed supporting leg (1), the upper and lower surface distance of the movable supporting legs (2) includes at least two height dimensions, and the height dimension of the height dimension more than other positions on the movable supporting legs (2) at carrying position of the movable supporting legs (2) after stretching in the longitudinal direction.The present invention can take into account the support bearing performance and flexible ride comfort of leg structure.
Description
Technical field
The present invention relates to field of work machines, more particularly to a kind of leg structure and mobilecrane.
Background technology
Mobilecrane is a kind of moveable hoisting machinery of complete machine, it include autocrane, crawler crane,
The full Terrain Cranes etc..For autocrane and the full Terrain Cranes, supporting leg is needed to use when carrying out lift heavy operation
Support on the ground, to ensure stability of the crane in operation process.
The leg structure of crane include fixed supporting leg and movable supporting legs, wherein fixed supporting leg generally with Frame Welding into
One, and movable supporting legs are assemblied in fixed supporting leg, and under the driving effect for passing through drive device (such as hydraulic jack)
Stretch back and forth the inside of fixed supporting leg.When carrying out hoisting operation, movable supporting legs stretch out, and coordinate with fixed supporting leg bearing structure
Contact, ground is passed to by vehicle frame stress, plays carrying effect.And in the telescopic process of movable supporting legs, movable supporting legs are with consolidating
Determine to realize guide extension by fit structure between supporting leg.
It is perspective and the side view of a kind of fixed supporting leg of existing supporting leg structure for crane example as shown in Figure 1A, 1B
The structural representation of angle.Fixed supporting leg a1 includes upper overlap joint block a11, lower overlap joint block a12 and box-structure a13, upper overlap joint
Distance of the block a11 lower plane with the lower upper plane for overlapping block in the height direction is fixed supporting leg and the cooperation chi of movable supporting legs
Fit dimension very little G, size G shared when being supporting leg stress and be flexible.
Fig. 2A, 2B are illustrated that the structure of the movable supporting legs of existing supporting leg structure for crane example, movable supporting legs a2
Including upper cover plate a21, lower cover a22 and web a23, lower cover a22 is that an entire plate or plurality of plates docking welding are formed, entirely
Lower cover lower plane, without projection, is flat surface.Upper cover plate a21 is similar with lower cover a22 structures, and plane is smooth knot thereon
Structure, no projection.Lower cover a22 lower plane and the a21 of upper cover plate upper plane are then movable supporting legs in the distance of short transverse
Box height dimension H, and H<G.Therefore, the fit clearance of fixed supporting leg and movable supporting legs is (G-H).Movable supporting legs flexible and
The fit clearance is used during carrying.
This existing supporting leg structure for crane has the following disadvantages：
1st, movable supporting legs are in telescopic process, and due to the change of its position of centre of gravity, it is often inclined motion,
In addition the influence of the factor such as foozle, to ensure that movable supporting legs are capable of expansion and contraction, the fit clearance of movable supporting legs and fixed supporting leg
It must be the bigger the better；During support bearing, to ensure that supporting leg has the contact site of more preferable stress, movable supporting legs and fixed supporting leg
Position must assure that plane-plane contact, and this requires that supporting leg fit clearance is the smaller the better.Matching somebody with somebody needed for existing movable supporting legs Telescopic
The requirement of landing leg stretching function and support bearing function can not be met simultaneously by closing gap, can only finally be sacrificed a performance and be gone satisfaction
Another performance.
2nd, existing leg structure is either not provided with telescopic guide or only with lower guider, due to lacking
Effectively it is oriented to, therefore movable supporting legs ride comfort when flexible is poor, vibration problem easily occurs.
The content of the invention
The purpose of the present invention is to propose to a kind of leg structure and mobilecrane, the flexible work(of movable supporting legs can be taken into account
The requirement of energy and bearing function.
To achieve the above object, the invention provides a kind of leg structure, including：Fixed supporting leg and movable supporting legs, it is described
Fixed supporting leg includes Box-type enclosures, and the movable supporting legs are arranged in the Box-type enclosures of the fixed supporting leg, and can be relative to
The fixed supporting leg stretches, and the upper and lower surface distance of the movable supporting legs includes at least two height dimensions in the longitudinal direction,
And the height dimension at carrying position of the movable supporting legs after stretching is more than the height gauge at other positions on the movable supporting legs
It is very little.
Further, the fixed supporting leg also includes overlap joint bearing structure, and the overlap joint bearing structure is arranged on the case
Close to the position of the exterior side port of the Box-type enclosures, the height of the hollow region of the overlap joint bearing structure formation on the inside of type shell
Spend the height dimension that size is more than carrying position of the movable supporting legs after stretching.
Further, the movable supporting legs include web, the first cover plate and the second cover plate, first cover plate and the second lid
Plate is located above and below the web respectively, and is connected to form box-structure with the web, first cover plate and/or
The region for corresponding to the carrying position after the movable supporting legs stretch out on second cover plate sets or is formed with outer male structure.
Further, the outer male structure is the cover plate structure thicker close to root position on second cover plate.
Further, the other parts not thickeied on the cover plate structure thicker and second cover plate pass through butt welding
Mode is connected.
Further, the length at carrying position of the movable supporting legs after stretching is more than the length of the overlap joint bearing structure
Degree.
Further, also include in the Box-type enclosures of the fixed supporting leg in multiple guide pads, the multiple guide pad
Different guide pads and/or overlap joint bearing structure can center of gravity be solid relative to described in telescopic process with the movable supporting legs
Determine the change in location of supporting leg, coordinated in the different motion stroke of the movable supporting legs, to realize to the movable supporting legs
Motion guide.
Further, the multiple guide pad includes the upper guiding of the Box-type enclosures upper inside positioned at the fixed supporting leg
Block, positioned at the fixed supporting leg Box-type enclosures inner lower front lower guide pad and descend guide pad afterwards, overlap joint carrying knot
Structure include respectively positioned at the fixed supporting leg Box-type enclosures upper inside and downside upper overlap joint block and lower overlap joint block, it is described before
Lower guide pad is arranged at the front position of the fixed supporting leg, it is described after lower guide pad be arranged on the fixed supporting leg after
The position at end, the lower overlap joint block is located between the front lower guide pad and afterwards lower guide pad, and the upper overlap joint block is arranged on institute
The front position of fixed supporting leg is stated, the upper guide pad is arranged on position of the fixed supporting leg close to front end, and positioned at described
The inner side of upper overlap joint block.
Further, the height of the front lower guide pad is less than the height of the lower overlap joint block, the rear lower guide pad
Highly higher than the height of the lower overlap joint block, and/or the upper guide pad is in the Box-type enclosures inner lower of the fixed supporting leg
Projection be located at the front lower guide pad and it is described it is lower overlap joint block between.
Further, in addition to for adjusting the multiple arrangement for adjusting height for being oriented to tile height.
Further, the rear lower length direction of the guide pad along the fixed supporting leg is wedge shaped.
To achieve the above object, the invention provides a kind of mobilecrane, including foregoing leg structure.
Based on above-mentioned technical proposal, the present invention makes the upper and lower surface distance of movable supporting legs include at least two in the longitudinal direction
Height dimension is planted, and the height dimension at carrying position of the movable supporting legs after stretching is more than the height at other positions on movable supporting legs
Size is spent, is separated so that the telescopic section of movable supporting legs carries out function with bearing part, when movable supporting legs reach carrying position
When putting, the height dimension that it carries position is larger so that its fit clearance between fixed supporting leg is relatively small, it is ensured that supporting leg
The contact area of stress surface, to lift the bearing capacity of leg structure, and when movable supporting legs carry out telescopic process, movable supporting legs
The height dimension at upper other positions for removing carrying position is smaller so that the fit clearance between remaining fixed supporting leg is relatively
Greatly, so that it is guaranteed that movable supporting legs relative to the smooth-going between fixed supporting leg stretching motion.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Figure 1A, 1B are respectively the perspective and side view angle of a kind of fixed supporting leg of existing supporting leg structure for crane example
Structural representation.
Fig. 2A, 2B are respectively the perspective and side view angle of a kind of movable supporting legs of existing supporting leg structure for crane example
Structural representation.
Fig. 3 A, 3B are respectively the perspective of the movable supporting legs of an embodiment of leg structure of the present invention and the structure of side view angle
Schematic diagram.
Fig. 4 A, 4B are respectively the perspective of the fixed supporting leg of another embodiment of leg structure of the present invention and the knot of side view angle
Structure schematic diagram.
Fig. 5 is the fixed supporting leg of leg structure embodiment of the present invention and the assembling structure schematic diagram of movable supporting legs.
Embodiment
Below by drawings and examples, technical scheme is described in further detail.
It is respectively perspective and the side view angle of the movable supporting legs of an embodiment of leg structure of the present invention as shown in Fig. 3 A, 3B
The structural representation of degree.Leg structure includes fixed supporting leg 1 and activity in assembling schematic diagram with reference to shown in Fig. 5, the present embodiment
Supporting leg 2.Fixed supporting leg 1 is typically mounted on the underframe of Work machine equipment or car body, and it includes Box-type enclosures 10, movable supporting legs
2 are arranged in the Box-type enclosures 10 of the fixed supporting leg 1, and can be flexible relative to fixed supporting leg 1.The box of fixed supporting leg 1
Shell 10 can play storage movable supporting legs 2, and the effect carried in operation to the movable supporting legs 2 of stretching.
Movable supporting legs 2 can in box-shaped enclosure 10 stretching motion, and reach carrying position when holding by its root
Carry position and carry out carrying support with box-shaped enclosure 10, and the vertical supporting leg that its end is set then holds out against ground, so that working rig
The support that tool equipment can be stablized is on the ground.Here root refers to portion of the movable supporting legs relative to fixed supporting leg most inner side
Point, end then refers to that movable supporting legs, relative to the outermost part of fixed supporting leg, are provided with vertical supporting leg on end.If with
On the basis of the stretching direction of movable supporting legs, then rear end and front end of the root and end of movable supporting legs equivalent to movable supporting legs.
Wish that both fit clearances are wider during in view of movable supporting legs 2 relative to 1 stretching motion of fixed supporting leg, to make to stretch
Contracting motion is more smoothly, and then wishes both fit clearances narrowly in carrying position, to make movable supporting legs 2 and fixed supporting leg 1
Between carrying contact area it is bigger, to obtain more preferable bearing capacity, the present embodiment makes the upper and lower surface distance of movable supporting legs 2
Include at least two height dimensions in the longitudinal direction, and make the height dimension at carrying position of the movable supporting legs 2 after stretching big
Height dimension in other positions on the movable supporting legs 2.Thus by the carrying position of movable supporting legs 2 and other positions from height
Function separation is carried out in degree size, the wherein bigger carrying position of height dimension has corresponded to smaller fit clearance, to realize
More preferable carrying effect, and other less positions of height dimension have corresponded to bigger fit clearance, to ensure more smooth-going and not
The stretching motion of vibration.
It can be set in the Box-type enclosures 10 of fixed supporting leg 1 similar to the overlap joint that overlap joint block is formed above and below shown in Figure 1B
Bearing structure, overlap joint bearing structure is arranged on the inner side of Box-type enclosures 10 close to the position of the exterior side port of Box-type enclosures 10, and it is taken
The form for connecing bearing structure is not limited to form shown in Figure 1B, as long as its structure type, which can be realized, is directed to movable supporting legs 2
Overlap joint and carrying effect.With reference to Fig. 3 B, the height dimension G of the hollow region of overlap joint bearing structure formation is more than activity and propped up
The height dimension H1 at carrying position of the leg 2 after stretching, and the height dimension at other positions of movable supporting legs is substantially in Fig. 3 B
H2, and H2<H1, hence in so that the fit clearance (G-H1) corresponding to the carrying position of movable supporting legs 2 is less than stretching for telescopic outrigger 2
The fit clearance (G-H2) of compression process.In another embodiment, the height dimension at other positions of movable supporting legs can also have many
Individual different height number, such as the cascaded surface, inclined-plane, cambered surface that are formed corresponding to the lower surface of movable supporting legs.
For movable supporting legs 2, the length at its carrying position after stretching is preferably greater than the overlap joint bearing structure
Length, to ensure suitable contact area, it is to avoid influence structure stress effect.
Movable supporting legs structure with reference to shown in Fig. 3 A and Fig. 3 B, the movable supporting legs 2 include web 23, the first cover plate 21 and the
Two cover plates 22.First cover plate 21 and the second cover plate 22 are located above and below web 23 respectively, and are connected formation with web 23
Box-structure.Correspond to the region setting at the carrying position after the movable supporting legs 2 stretch out on second cover plate 22 or be formed with outer
Male structure 25.In another embodiment, outer male structure can also set or be formed corresponds to the work on the first cover plate 21
The region at the carrying position after the dynamic stretching of supporting leg 2, or corresponding to the activity branch on the first cover plate 21 and the second cover plate 22
The region at the carrying position after the stretching of leg 2 is respectively provided with outer male structure 25.
Outer male structure 25 can use cover plate structure thicker, such as the outer male structure 25 shown in Fig. 3 A is second lid
Close to the cover plate structure thicker of root position on plate 22.In other embodiments, outer male structure 25 can also be overall the
The entity structure welded or be bonded in the plane of one cover plate 21 and/or the second cover plate 22, or formed in itself for box structure
The structure of outwardly convex.
For cover plate structure thicker, be preferably provided on the second cover plate 22 because movable supporting legs 2 relative to
During 1 stretching motion of fixed supporting leg, after movable supporting legs 2 are packing up vertical supporting leg, because center of gravity is located at outside fixed supporting leg 1, because
The entirety of this movable supporting legs 2 can inclined downward laterally so that the root of movable supporting legs 2 is upwarped, and the upper surface of movable supporting legs 2 can
It can be in contact with the box-shaped enclosure 10 of fixed supporting leg 1, and outer male structure is located on the lower surface of the second cover plate 22 and can avoided
During 10 relative motion of box-shaped enclosure of the upper surface of movable supporting legs 2 and fixed supporting leg 1 because frictional force is excessive and the problem of block.
In addition, the other parts not thickeied on cover plate structure thicker and the second cover plate 22 are preferably connected by butt welding mode, cover plate
Structure thicker and the other parts not thickeied can align in upper surface, just can just be formed with cover plate structure thicker after butt welding
Outer male structure.The outer male structure that this butt welding mode is obtained is compared to the welding in the plane of the second cover plate or is bonded
Mode it is more reliable, the mode relative to the outer male structure of machining on the second cover plate is more efficient, also more saves material.
It is respectively perspective and the side view of the fixed supporting leg of another embodiment of leg structure of the present invention as shown in Fig. 4 A, 4B
The structural representation of angle.Assembling structure with reference to shown in Fig. 5.The present embodiment is compared with a upper embodiment, in the fixed branch
The different guide pads and/or overlap joint carrying knot in multiple guide pads, the multiple guide pad are added in the Box-type enclosures 10 of leg 1
Structure can with the movable supporting legs 2 in telescopic process center of gravity relative to the fixed supporting leg 1 change in location, in the work
Coordinated in the different motion stroke of dynamic supporting leg 2, to realize the motion guide to the movable supporting legs 2, further ensure that
The ride comfort of the telescopic process of movable supporting legs 2.
With reference to Fig. 4 A, the plurality of guide pad includes the upper guide pad of the upper inside of Box-type enclosures 10 positioned at fixed supporting leg 1
15th, positioned at fixed supporting leg 1 the inner lower of Box-type enclosures 10 front lower guide pad 13 and lower guide pad 14 afterwards.And overlap carrying knot
Structure is included respectively positioned at the upper inside of Box-type enclosures 10 of fixed supporting leg 1 and the upper overlap joint block 11 of downside and lower overlap joint block 12.
Stretching direction based on movable supporting legs 2, front lower guide pad 13 is arranged at the front position of fixed supporting leg 1, it is rear under lead
The position of the close rear end of fixed supporting leg 1 is arranged on to block 14, lower overlap joint block 12 is located at front lower guide pad 13 and afterwards lower guide pad
Between 14, the upper overlap joint block is arranged on the front position of the fixed supporting leg 1, and upper guide pad 15 is arranged on fixed supporting leg 1 and leaned on
The position of front end, and positioned at the inner side of upper overlap joint block 11.
Movable supporting legs 2 are moved from extended position to retracted position：When the center of gravity of movable supporting legs 2 is located at the lower outside of overlap joint block 12
When, movable supporting legs 2 are in the heeling condition of low early and high after (before the stretching of movable supporting legs 2 direction is), and movable supporting legs 2 are by upper guide pad 15
It is oriented to front lower guide pad 13.As movable supporting legs 2 are to the persistent movement of the inner side of fixed supporting leg 1, the center of gravity of movable supporting legs 2 position
Put and move closer to lower overlap joint block 12, the rear portion of movable supporting legs 2 gradually falls.Outer male structure 25 on movable supporting legs 2 is taken under crossing
Connect after block 12, the second cover plate 22 of movable supporting legs 2 is finally contacted with lower overlap joint block 12.Now, movable supporting legs 2 are by upper guide pad
15th, front lower guide pad 13 and lower overlap joint block 12 are oriented to jointly；When the center of gravity of movable supporting legs 2 crosses lower overlap joint block 12, activity
The rear portion of supporting leg 2 further falls, and movable supporting legs 2 gradually depart from upper guide pad 15, and after gradually snapping on lower guide pad 14,
Hereafter, movable supporting legs 2 are oriented to jointly by rear lower guide pad 14 and lower overlap joint block 12, until movable supporting legs 2 are fully retracted to setting
Position.Process of the movable supporting legs 2 from retracted position to extended position in contrast, will not be repeated here.
For these guide pads and overlap joint block, preferably make height of the height less than lower overlap joint block 12 of front lower guide pad 13
Degree is (such as low 2-3mm), and the height of lower guide pad 14 is higher than the height (such as high at least 4mm) of lower overlap joint block 12 after making,
To coordinate lateral attitude when movable supporting legs 2 are in different flexible strokes.In addition, case of the upper guide pad 15 in the fixed supporting leg
The projection of the inner lower of type shell 10 is preferably placed between the front lower guide pad 13 and the lower overlap joint block 12.These guide pads
Highly non-adjustable structure can be used, it would however also be possible to employ arrangement for adjusting height realizes each guide pad height adjustable.For example scheme
In the bolt height adjustment mechanism that is used of the upper guide pad 15 that shows etc..Can be to flexible branch by the height for adjusting guide pad
The lateral attitude of leg is adjusted, to eliminate foozle.For rear lower guide pad 14, because it is along fixed supporting leg 1
Length direction is wedge shaped, i.e., rear high preceding low, to coordinate telescopic outrigger 2 in telescopic process because center of gravity reason is also in low before rear height
Lateral attitude.
Each embodiment of above-mentioned leg structure is applicable to all kinds of Work machines needed into driving frame or car body support
Equipment, such as mobilecrane, high-altitude operation vehicle, concrete mixer.Include present invention also offers one kind foregoing any
The mobilecrane of leg structure embodiment is planted, such as autocrane or the full Terrain Cranes, is existed by leg structure
The characteristics of on Telescopic and bearing function so that hoisting operation is more reliable and more stable, and operating efficiency can be effectively improved.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among claimed technical scheme scope of the invention.
Claims (12)
1. a kind of leg structure, it is characterised in that including：Fixed supporting leg (1) and movable supporting legs (2), fixed supporting leg (1) bag
Box-type enclosures (10) are included, the movable supporting legs (2) are arranged in the Box-type enclosures (10) of the fixed supporting leg (1), and being capable of phase
Flexible for the fixed supporting leg (1), the upper and lower surface distance of the movable supporting legs (2) includes at least two in the longitudinal direction
Height dimension, and the movable supporting legs (2) after stretching carrying position height dimension be more than the movable supporting legs (2) on its
The height dimension at its position.
2. leg structure according to claim 1, it is characterised in that the fixed supporting leg (1) also includes overlap joint carrying knot
Structure, the overlap joint bearing structure is arranged on the exterior side port of the close Box-type enclosures (10) on the inside of the Box-type enclosures (10)
Position, the height dimension of the hollow region of the overlap joint bearing structure formation is more than the movable supporting legs (2) holding after stretching
Carry the height dimension at position.
3. leg structure according to claim 1, it is characterised in that the movable supporting legs (2) include web (23), first
Cover plate (21) and the second cover plate (22), first cover plate (21) and the second cover plate (22) are respectively positioned at the upper of the web (23)
Side and lower section, and be connected to form box-structure with the web (23), on first cover plate (21) and/or the second cover plate (22)
The region at the carrying position after being stretched out corresponding to the movable supporting legs (2) sets or is formed with outer male structure (25).
4. leg structure according to claim 3, it is characterised in that the outer male structure (25) is second cover plate
(22) close to the cover plate structure thicker of root position on.
5. leg structure according to claim 4, it is characterised in that the cover plate structure thicker and second cover plate
(22) other parts not thickeied on are connected by butt welding mode.
6. leg structure according to claim 2, it is characterised in that supporting part of the movable supporting legs (2) after stretching
The length of position is more than the length of the overlap joint bearing structure.
7. leg structure according to claim 2, it is characterised in that the Box-type enclosures (10) in the fixed supporting leg (1)
The different guide pads and/or overlap joint bearing structure inside also included in multiple guide pads, the multiple guide pad can be with described
Movable supporting legs (2) in telescopic process center of gravity relative to the fixed supporting leg (1) change in location, in the movable supporting legs (2)
Different motion stroke in coordinated, to realize the motion guide to the movable supporting legs (2).
8. leg structure according to claim 7, it is characterised in that the multiple guide pad includes being located at the fixed branch
The upper guide pad (15) of Box-type enclosures (10) upper inside of leg (1), the Box-type enclosures (10) positioned at the fixed supporting leg (1) are interior
The front lower guide pad (13) of subordinate side and afterwards lower guide pad (14), the overlap joint bearing structure include being located at the fixed branch respectively
Box-type enclosures (10) upper inside of leg (1) and the upper overlap joint block (11) of downside and lower overlap joint block (12), the front lower guide pad
(13) front position of the fixed supporting leg (1) is arranged at, the rear lower guide pad (14) is arranged on the fixed supporting leg (1)
Position close to rear end, the lower overlap joint block (12) is located between the front lower guide pad (13) and afterwards lower guide pad (14), institute
The front position that overlap joint block is arranged on the fixed supporting leg (1) is stated, the upper guide pad (15) is arranged on the fixed supporting leg
(1) close to the position of front end, and positioned at the inner side of the upper overlap joint block (11).
9. leg structure according to claim 8, it is characterised in that the height of the front lower guide pad (13) is less than described
The height of lower overlap joint block (12), height of the height higher than the lower overlap joint block (12) of the rear lower guide pad (14), and/or institute
The projection that guide pad (15) is stated in Box-type enclosures (10) inner lower of the fixed supporting leg is located at the front lower guide pad
(13) between the lower overlap joint block (12).
10. leg structure according to claim 7, it is characterised in that also including high for adjusting the multiple guide pad
The arrangement for adjusting height of degree.
11. leg structure according to claim 8, it is characterised in that lower guide pad (14) is propped up along the fixation after described
The length direction of leg (1) is wedge shaped.
12. a kind of mobilecrane, it is characterised in that including any described leg structure of claim 1~11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455953.0A CN107200279A (en) | 2017-06-16 | 2017-06-16 | Leg structure and mobilecrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455953.0A CN107200279A (en) | 2017-06-16 | 2017-06-16 | Leg structure and mobilecrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107200279A true CN107200279A (en) | 2017-09-26 |
Family
ID=59907484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710455953.0A Pending CN107200279A (en) | 2017-06-16 | 2017-06-16 | Leg structure and mobilecrane |
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| CN (1) | CN107200279A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117208791A (en) * | 2023-09-25 | 2023-12-12 | 河南骏通车辆有限公司 | Double-support leg structure and automobile crane |
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| CN201777806U (en) * | 2009-12-02 | 2011-03-30 | 三一汽车制造有限公司 | Crane support leg assembly and crane adopting the same |
| CN102431907A (en) * | 2010-09-29 | 2012-05-02 | 上海尤加工程机械科技有限公司 | Walking type tunnel carriageway plate crane |
| CN201882815U (en) * | 2010-10-25 | 2011-06-29 | 徐州重型机械有限公司 | Elevator boom and self disassembling and assembling device thereof |
| CN202245854U (en) * | 2010-10-25 | 2012-05-30 | 三一汽车起重机械有限公司 | Engineering equipment with support leg, and device for detecting full-extending state of support leg |
| CN202322120U (en) * | 2011-11-14 | 2012-07-11 | 中联重科股份有限公司 | Support leg |
| CN204490378U (en) * | 2015-01-23 | 2015-07-22 | 徐州重型机械有限公司 | A kind of crane support and hoisting crane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117208791A (en) * | 2023-09-25 | 2023-12-12 | 河南骏通车辆有限公司 | Double-support leg structure and automobile crane |
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Application publication date: 20170926 |