CN205820752U - Discrete cross section crane arm and use the single cylinder bolt-type crane of this structure - Google Patents
Discrete cross section crane arm and use the single cylinder bolt-type crane of this structure Download PDFInfo
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- CN205820752U CN205820752U CN201620595820.4U CN201620595820U CN205820752U CN 205820752 U CN205820752 U CN 205820752U CN 201620595820 U CN201620595820 U CN 201620595820U CN 205820752 U CN205820752 U CN 205820752U
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Abstract
The utility model discloses a kind of discrete cross section crane arm, it includes: acromere arm cylinder (5) and internal segment arm arm tail (6)；Described acromere arm cylinder (5) inner side, be perpendicular to each stroke arm pin point (4) and in meet slide block (3) the parallel place of arm arm tail (6) sidepiece and be provided with at least one piece of backing plate (5 1), and the thickness of the slide block (3) of thinning internal segment arm arm tail (6) sidepiece, and then principal arm internal segment arm arm tail (6) in telescopic process is made to be become discrete localized contact with acromere arm cylinder (3) side plane from total travel, the continuous form contacted；Also disclose the single cylinder bolt-type crane using this structure simultaneously；This utility model both can effectively eliminate the main arm telescoping shake caused because of barrel soldering deformation;Can significantly save again grease consumption, principal arm efficiency of assembling is greatly improved simultaneously, save installation time.
Description
Technical field
This utility model relates to a kind of crane crane arm, a kind of discrete cross section crane arm and make this structure
Single cylinder bolt-type crane.
Background technology
Crane arm is the main workpiece of mobilecrane, and wherein telescopic boom is most common of which one
Plant (see figure 1).Along with super-tonnage crane develops to kiloton, principal arm own wt is also continuously increased, to assembly equipment
Requiring day by day to increase, assembly difficulty is the most increasing;When utilizing whipline to pull out arm, assembling the most in the wild, each arm joint pair
Middle difficulty is big, and needing many people to utilize crowbar cooperation repeatedly to revise could realize, and this becomes the key factor of restriction principal arm assembling speed.
Additionally, due to the principal arm side sway phenomenon that each joint arm arm tail slide block assembled pine and caused is increasingly sharpened, anxious to be resolved.
Existing main arm structure is as shown in Figure 2: it includes arm head 1, cylinder 2, slide block 3 and arm pin point 4, such as Fig. 3 principal arm cylinder 2
On be provided with 4 arm pin points (10% stroke arm pin point 4-1,46% stroke arm pin point 4-2,92% stroke arm pin point 4-3,100% row
Journey arm pin point 4-4), it is achieved that principal arm length changes when internal segment arm arm pin card is at the arm pin point 4 of different strokes.Such as Fig. 4 and
Fig. 5, principal arm cylinder 2 is welded by butt weld 2-2 by upper cover plate 2-1 and lower cover 2-2, in ensureing cylinder 2 during docking
Sectional dimension is constant, is i.e. continuous print smooth surface inside cylinder 2.
Each joint principal arm of prior art in it cross-sectional width equal sized, it is assumed that the width value of a certain joint arm is W, corresponding
Internal segment arm arm tail 6 assemble after slide block 3 whole width size also for W (as shown in Figure 4,5, 6).The most either internal segment arm is along acromere
Arm telescopic process, or when internal segment arm is locked at acromere arm arm pin point 4, its arm tail slide block 3 contacts with acromere arm cylinder 5 all the time.
Internal segment arm is locked in acromere arm arm pin point 4, and now arm tail slide block 3 contacts with acromere arm cylinder 5 is necessary, so
It is possible to prevent principal arm lift heavy side sway.But at the exterior domain of each arm pin point 4, arm tail slide block 3 when internal segment arm stretches, need not be ensured
Contact with acromere arm cylinder 5；The most upper and lower cover plate 2-1,2-3 joint welding deformation is inevitable, in making actual cylinder 3
Side width dimensions size is uneven, so easily causes main arm telescoping jitter phenomenon.
In existing principal arm assembly technology, in factory, use driving lifting assembling；Use whipline lifting assembling (such as figure outside factory
Shown in 7).And whole width size is equal sized with acromere arm cylinder 5 insied width after internal segment arm arm 6 assembles slide block 3, respectively save in addition
Arm self symmetrical structure form, determines assembling successfully it is crucial that respectively save arm centrage and align.Either driving dress in factory
Joining or whipline assembling outside factory, when the swing of equipment self makes interior acromere arm be set with, centering difficulty, need to adjust centering repeatedly,
Waste of manpower, material resources.
Meanwhile, principal arm cylinder 3 can produce " pregnant " in arm pin point 4 position because of welding deformation, i.e. this position cylinder 3
Developed width value can be more than W;When internal segment arm tail 6 extend out to " pregnant " arm pin point, side sway will be produced because of afterbody gap
Phenomenon.
Under the conditions of the most existing principal arm, internal segment arm tail slide block 3 and acromere arm cylinder 5 total travel range contact so that cylinder
Medial surface all needs to smear grease.
Summary of the invention
The problem existed for above-mentioned prior art, this utility model provides a kind of discrete cross section crane arm, is possible not only to
Avoid the main arm telescoping shake caused because of barrel soldering deformation can also reduce principal arm assembly difficulty；Additionally provide a kind of dress simultaneously
There is the single cylinder bolt-type crane of this structure.
To achieve these goals, the technical solution adopted in the utility model is: a kind of discrete cross section crane arm, its bag
Include:
Acromere arm cylinder and internal segment arm arm tail；
Inside described acromere arm cylinder, be perpendicular to each stroke arm pin point and in connect the slide block in arm arm caudal portion parallel
Place is provided with at least one piece of backing plate, and the thickness of the slide block in thinning internal segment arm arm caudal portion, and then makes principal arm in telescopic process
Internal segment arm arm tail is become discrete localized contact with acromere arm cylinder side plane from total travel, the continuous form contacted.
Long groove is left at described backing plate two ends, it is possible to the slide block meeting arm arm caudal portion in making passes through.
Described acromere arm cartridge openings size is more than the width dimensions of internal segment arm arm tail.
The thickness H of described backing plate is consistent with the Reducing thickness H of the slide block in internal segment arm arm caudal portion, its backing plate width is more than sliding
The width of block.
Described backing plate is arranged on acromere arm cylinder medial wall by welding or detachable assembling type.
Described pad surfaces has scribbled the grease of lubrication.
A kind of single cylinder bolt-type crane, including above-mentioned a kind of discrete cross section crane arm.
With existing internal segment arm arm tail compared with acromere arm cylinder full-contact structure, this utility model is by design pad
Plate, becomes discrete localized contact form by the form of total travel, contact continuously, and interior acromere arm only connects four arm pin point positions
Touch, the design of not side sway when principal arm is stretched entirely can be met completely, use requirement；
It is possible not only to the main arm telescoping shake avoiding causing because of barrel soldering deformation;Principal arm assembly difficulty can also be reduced, because of
For acromere arm A/F size internal segment to be significantly greater than arm tail width dimensions, and then eliminate because of welding " pregnant " problem, make
In, acromere arm can also assemble when there is alignment deviation smoothly, is greatly improved principal arm efficiency of assembling inside and outside factory；
Grease has only to be applied on backing plate simultaneously, while assembler's workload is greatly reduced, the most substantially
Reduce the usage amount of grease, reduce the purpose of cost.
Accompanying drawing explanation
Fig. 1 is box type telescopic boom crane general illustration；
Fig. 2 is main arm structure schematic diagram；
Fig. 3 is single-cylinder bolt principal arm arm pin point scattergram；
Fig. 4 is existing principal arm cylinder schematic diagram；
Fig. 5 is the structural front view of Fig. 4；
Fig. 6 is that existing interior acromere arm assembles schematic diagram；
Fig. 7 is that existing principal arm assembles schematic diagram；
Fig. 8 is this utility model tube structure figure；
Fig. 9 is backing structure schematic diagram in Fig. 8；’
Figure 10 is the structural front view of this Fig. 8；
Figure 11 is acromere arm installation diagram in this utility model；
Figure 12 is acromere arm size installation diagram in this utility model.
In figure: 1, arm head, 2, cylinder, 2-1, upper cover plate, 2-2, butt weld, 2-3, lower cover, 3, slide block, 4, arm pin
Point, 4-1,10% stroke arm pin point, 4-2,46% stroke arm pin point, 4-3,92% stroke arm pin point, 4-4,100% stroke arm pin point,
5, acromere arm cylinder, 5-1, backing plate, 5-1-1, groove, 6, internal segment arm arm tail.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
If Fig. 8 to Figure 12 is a kind of discrete cross section crane arm, it includes:
Acromere arm cylinder 5 and internal segment arm arm tail 6；
Such as Fig. 8: as described in acromere arm cylinder 5 inside, be perpendicular to each stroke arm pin point 4 and in connect arm arm tail 6 sidepiece
The parallel place of slide block 3 be provided with at least one piece of backing plate 5-1, single plate backing plate 5-1 thickness is H, and thinning internal segment arm arm tail 6 sidepiece
The thickness of slide block 3, Reducing thickness are H, four arm pin point 4 position internal segment arm arm tails 6 of guarantee contact with acromere arm cylinder 5, remaining
Seam distance H is dodged, above-mentioned design and then make principal arm internal segment arm arm tail 6 and acromere arm cylinder 3 side in telescopic process both during position
Plane is become discrete localized contact from the form of total travel, contact continuously；
Wherein, backing plate 5-1 width is more than the width of slide block 3, it is possible to make backing plate 5-1 be coated with slide block 3 completely.
As it is shown in figure 9, long groove 5-1-1 is left at described backing plate 5-1 two ends, it is possible to connect the cunning of arm arm tail 6 sidepiece in making
Block 3 passes through, ensures main arm telescoping stationarity.
As shown in Figure 10: when principal arm cylinder can produce " pregnant " because of welding deformation in arm pin point position, it is assumed that deformation
Amount is m(m ＜ 2H), cylinder width dimensions is W-2H+m herein；During assembling, only need to make by adjusting increase pad 5-1
Internal segment arm arm tail 6 width increases m, it is possible to eliminate the side sway problem caused because of welding " pregnant ".
And acromere arm cylinder 3 opening size is more than the width dimensions of internal segment arm arm tail 6 so that centering occurs in interior acromere arm
Can also assemble smoothly during deviation, be greatly improved principal arm efficiency of assembling inside and outside factory.
Further, described backing plate 5-1 is arranged on acromere arm cylinder 5 medial wall by welding or detachable assembling type,
Can carry out according to the actual requirements selecting assembling mode.
Grease has only to be applied on backing plate 5-1, while assembler's workload is greatly reduced, the most substantially drops
The usage amount of low grease, reduces the purpose of cost.
The invention also discloses a kind of single cylinder bolt-type crane, it includes above-mentioned any form of discrete cross section lifting
Arm.
In sum: or else this utility model changes principal arm arm stern construction assembling form；Make full use of single-cylinder bolt lifting
Machine main arm telescoping principle and brachium thereof stretch combination rule, by adjusting each joint arm inner barrel sectional dimension, change principal arm and stretch
Internal segment arm arm tail 6 and acromere arm cylinder 5 side plane total travel, the continuous form contacted in compression process, it is achieved discrete localized contact.
After using this new structure, both can effectively eliminate the main arm telescoping shake caused because of barrel soldering deformation;Can significantly save again
Grease consumption, is greatly improved principal arm efficiency of assembling simultaneously, saves installation time.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this practicality in other specific forms new
Type.Therefore, no matter from the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that by the containing of equivalency in claim that fall
All changes in justice and scope are included in this utility model.Should not be considered as any reference in claim limiting
Involved claim.
The above, preferred embodiment the most of the present utility model, not in order to limit this utility model, every according to this
Any trickle amendment, equivalent and the improvement that above example is made by the technical spirit of utility model, should be included in this
Within the protection domain of utility model technical scheme.
Claims (7)
1. a discrete cross section crane arm, it is characterised in that it includes:
Acromere arm cylinder (5) and internal segment arm arm tail (6)；
Described acromere arm cylinder (5) inner side, be perpendicular to each stroke arm pin point (4) and in connect the cunning of arm arm tail (6) sidepiece
Block (3) parallel place is provided with at least one piece of backing plate (5-1), and the thickness of the slide block (3) of thinning internal segment arm arm tail (6) sidepiece, enters
And make principal arm in telescopic process internal segment arm arm tail (6) and acromere arm cylinder (5) side plane by total travel, the form that contacts continuously
Become discrete localized contact.
A kind of discrete cross section crane arm the most according to claim 1, it is characterised in that described backing plate (5-1) two ends are stayed
There is long groove (5-1-1), it is possible to the slide block (3) connecing arm arm tail (6) sidepiece in making passes through.
A kind of discrete cross section crane arm the most according to claim 2, it is characterised in that described acromere arm cylinder (5) is opened
Mouth size is more than the width dimensions of internal segment arm arm tail (6).
A kind of discrete cross section crane arm the most according to claim 1, it is characterised in that the thickness H of described backing plate (5-1)
, its backing plate (5-1) width consistent with the Reducing thickness H of the slide block (3) of internal segment arm arm tail (6) sidepiece is more than the width of slide block (3).
A kind of discrete cross section crane arm the most according to claim 2, it is characterised in that described backing plate (5-1) is by weldering
Connect or detachable assembling type is arranged on acromere arm cylinder (5) medial wall.
A kind of discrete cross section crane arm the most according to claim 5, it is characterised in that described backing plate (5-1) surface is coated with
There is the grease of lubrication.
7. a single cylinder bolt-type crane, it is characterised in that include arbitrary described a kind of discrete cross section in claim 1-5
Crane arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620595820.4U CN205820752U (en) | 2016-06-17 | 2016-06-17 | Discrete cross section crane arm and use the single cylinder bolt-type crane of this structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620595820.4U CN205820752U (en) | 2016-06-17 | 2016-06-17 | Discrete cross section crane arm and use the single cylinder bolt-type crane of this structure |
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| Publication Number | Publication Date |
|---|---|
| CN205820752U true CN205820752U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620595820.4U Active CN205820752U (en) | 2016-06-17 | 2016-06-17 | Discrete cross section crane arm and use the single cylinder bolt-type crane of this structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516389A (en) * | 2018-12-08 | 2019-03-26 | 安徽柳工起重机有限公司 | A kind of adaptive sliding block |
-
2016
- 2016-06-17 CN CN201620595820.4U patent/CN205820752U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516389A (en) * | 2018-12-08 | 2019-03-26 | 安徽柳工起重机有限公司 | A kind of adaptive sliding block |
| CN109516389B (en) * | 2018-12-08 | 2024-01-30 | 安徽柳工起重机有限公司 | Self-adaptive sliding block |
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| GR01 | Patent grant |