CN204324761U - A kind of one-board jib tip structure and crane arm - Google Patents
A kind of one-board jib tip structure and crane arm Download PDFInfo
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- CN204324761U CN204324761U CN201420740472.6U CN201420740472U CN204324761U CN 204324761 U CN204324761 U CN 204324761U CN 201420740472 U CN201420740472 U CN 201420740472U CN 204324761 U CN204324761 U CN 204324761U
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Abstract
The utility model relates to a kind of one-board jib tip structure and crane arm, this one-board jib tip structure comprises upper vertical plate (1) and lower riser (2), wherein said upper vertical plate (1) is fixedly connected with described lower riser (2), described upper vertical plate (1) and described lower riser (2) can insert cylindrical shell and weld with the front end of described cylindrical shell, described upper vertical plate (1) and described lower riser (2) are provided with centering structure, and described centering structure is used for preventing from twisting between adjacent cylindrical shell.Crane arm comprises above-mentioned one-board jib tip structure.The utility model is by being arranged to the one-board structure comprising upper vertical plate and lower riser by jib tip structure, under the prerequisite of strength and stiffness ensureing arm head, simplify the structure, reduce the overall weight of crane arm header structure, and improve the overlap joint ratio of each joint telescopic boom, and then improve the lifting performance of crane arm, be the jib tip structure that a kind of structure is more reasonable, manufacturing efficiency is higher, reliability is higher.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of one-board jib tip structure and crane arm.
Background technology
Main load part when crane arm is crane hanging component, mostly adopts more piece box type telescopic arm configuration, realizes flexible, have certain load-carrying ability by inner oil cylinder or rope-arranging mechanism.Crane boom head is the important constituent elements of crane arm, is positioned at the leading portion of crane arm, and its Main Function installs and fixing crane arm, is the necessary medium that moves between arm and arm.The form of crane boom head is varied, has sticking board type mental, butt joint type etc., and the effect that various multi-form crane boom head realizes is the same.Wherein the feature of sticking board type mental is that structure is simple, and processing is simple, but poor rigidity and slide block fixed form unreliable.Butt joint type arm head forms box-structure, and rigidity strengthens, and slide block is fixed reliability and promoted, but requires higher to the weld seam docked with cylindrical shell.
One-board jib tip structure of the prior art, as shown in Figure 1, upper vertical plate a1 is veneer, and lower riser a2 seals into box body.The shortcoming of this one-board jib tip structure is mainly:
(1) under, riser is box-structure, can not reduce the spacing between each joint telescopic boom, does not contribute than (overlapping than referring to any joint lap of splice of arm and the ratio for extension except basic arm) the overlap joint of each joint telescopic boom;
(2) under, riser is box-structure, and can not alleviate the overall weight of whole jib tip structure, welding process is more complicated relatively also, makes production efficiency lower.
Utility model content
The purpose of this utility model proposes a kind of one-board jib tip structure and crane arm, the smaller and problem that jib tip structure overall weight is larger of the telescopic boom overlap joint solving existing one-board jib tip structure as possible.
For achieving the above object, the utility model provides a kind of one-board jib tip structure, comprise upper vertical plate (1) and lower riser (2), wherein said upper vertical plate (1) is fixedly connected with described lower riser (2), described upper vertical plate (1) and described lower riser (2) can insert cylindrical shell and weld with the front end of described cylindrical shell, described upper vertical plate (1) and described lower riser (2) are provided with centering structure, and described centering structure is used for preventing from twisting between adjacent cylindrical shell.
Further, described centering structure comprises centering plate (3), centering plate (3) top of described upper vertical plate (1) is provided with centring hole (4), centering plate (3) below of described lower riser (2) is provided with protruding centring hole (4).
Further, the surface of described upper vertical plate (1) and described lower riser (2) is provided with the hole for fixing slide block (6) and baffle plate (8), and described upper vertical plate (1) surface is also provided with the hole for installing tow strap slide plate (5).
Further, described slide block (6) comprises top shoe (6-1) and sliding block (6-2), wherein said top shoe (6-1) is installed on described upper vertical plate (1), and described sliding block (6-2) is installed on described lower riser (2).
Further, the top of described top shoe (6-1) is provided with the groove for setting up piece (7), and described top shoe (6-1) adjusts the gap between described cylindrical shell by described pad (7).
Further, described top shoe (6-1) is fixedly connected with baffle plate (8) by bolt (9), and described baffle plate (8) is fixedly installed on described upper vertical plate (1).
Further, described top shoe (6-1) below is provided with projection, and described projection cooperatively interacts with the take-up housing (10) being provided with respective aperture, and described take-up housing (10) is fixedly installed on described upper vertical plate (1).
Further, described sliding block (6-2) is fixedly connected with described baffle plate (8), and gear leans against on described lower riser (2).
Further, described baffle plate (8) comprises nylon baffle and iron baffle plate, described sliding block is fixed on described lower riser (2) by described nylon baffle and described iron baffle plate, and wherein said nylon baffle is positioned between described iron baffle plate and described lower riser (2).
For achieving the above object, the utility model additionally provides a kind of crane arm, comprises above-mentioned one-board jib tip structure.
Based on technique scheme, the utility model, by jib tip structure being arranged to the one-board structure comprising upper vertical plate and lower riser, can alleviate the overall weight of jib tip structure, can also increase overlap joint ratio, upgrade the lifting performance of weighing arm.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of one-board jib tip structure in prior art.
Fig. 2 is the structural representation of the utility model one-board jib tip structure embodiment.
Fig. 3 is the assembling schematic diagram of the utility model one-board jib tip structure embodiment.
Fig. 4 is the structural representation of the utility model arm head fastening type slide block.
Fig. 5 is the structural representation of the utility model arm head support formula slide block.
Fig. 6 be the utility model crane arm embodiment roll up view.
Fig. 7 be the utility model crane arm embodiment stretch out view.
In figure: a1-upper vertical plate, riser under a2-, 1-upper vertical plate, riser under 2-, 3-centering plate, 4-centring hole, 5-tow strap slide plate, 6-slide block, 6-1-top shoe, 6-2-sliding block, 7-pad, 8-baffle plate, 9-bolt, 10-take-up housing.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " on ", D score, " 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 utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the utility model protection domain can not be interpreted as.
As shown in Figure 2, be the structural representation of the utility model one-board jib tip structure embodiment.This one-board jib tip structure, comprise upper vertical plate 1 and lower riser 2, wherein said upper vertical plate 1 is fixedly connected with described lower riser 2, described upper vertical plate 1 and described lower riser 2 can insert cylindrical shell and weld with the front end of described cylindrical shell, described upper vertical plate 1 and described lower riser 2 are provided with centering structure, and described centering structure is used for preventing from twisting between adjacent cylindrical shell.
The one-board jib tip structure that the utility model proposes is plug-in type arm head, utilize cylindrical shell as a part for oneself structure, when meeting rigidity and slide block arrangement requirement, relative to butt joint type arm head of the prior art, jib tip structure of the present utility model reduces the requirement of weld seam between arm head and cylindrical shell.The jib tip structure that the utility model proposes is one-board, even if eliminate box-structure, the strength and stiffness of arm head still can meet design requirement, one-board jib tip structure simplifies the structure, reduce the overall weight of lifting arm head, and improve the overlap joint ratio of each joint telescopic boom, and then improve the lifting performance of crane arm, be the jib tip structure that a kind of structure is more reasonable, manufacturing efficiency is higher, reliability is higher.
In above-described embodiment, the centering structure of centering plate and internal segment arm cooperatively interacts, and ensures that the longitudinal plane of each joint arm is in same plane, twists between preventing arm and arm.
Preferably, described centering structure comprises centering plate 3, above the centering plate 3 of described upper vertical plate 1, be provided with centring hole 4, is provided with protruding centring hole 4 below the centering plate 3 of described lower riser 2.The centring hole on riser is wherein descended to weld with lower riser.
Above-mentioned one-board jib tip structure is applied to crane arm, between adjacent cylindrical shell, carries out centering by centering structure, prevent from twisting between adjacent cylindrical shell.Concrete centering step is: when crane arm shrinks, centering plate on a rear barrel front end upper vertical plate inserts in the centring hole on previous cylindrical shell upper vertical plate, centering plate under a rear barrel front end on riser inserts in the centring hole of riser projection under previous cylindrical shell, two groups of centering plates and centring hole cooperatively interact, and ensure not twist between adjacent cylindrical shell.The centering structure operation of this form is convenient, structure is simple, good reliability.Certainly this centering structure also can have other forms, as long as can ensure not twist between adjacent cylindrical shell.In addition, being respectively provided with two tapped bore in the centring hole both sides of upper vertical plate, adjusting intermediate gap by coordinating with bolt.
In another embodiment, the surface of described upper vertical plate 1 and described lower riser 2 all can be provided with the hole for fixing slide block 6 and baffle plate 8, and described upper vertical plate 1 surface is also provided with the hole for installing tow strap slide plate 5.When slide block is flexible between the arm of box crane arm and arm, for supporting and the device of lubrication assistant.Baffle plate is used for the slide block of fixing crane boom head.
As shown in Figure 3, be the assembling schematic diagram of the utility model one-board jib tip structure embodiment.Wherein, tow strap slide plate is fixedly mounted on upper vertical plate by the hole of upper vertical plate, and tow strap slide plate, prevents from rubbing between steel rope and jib tip structure for supporting steel-cable when hoisting rope is in relaxed state; Slide block is bolted and is installed on upper vertical plate and lower riser, and full reduced with when stretching out at crane arm, slide block plays constraint and supports each joint telescopic boom.
Preferably, described slide block 6 comprises top shoe 6-1 and sliding block 6-2, and wherein said top shoe 6-1 is installed on described upper vertical plate 1, and described sliding block 6-2 to be installed on described lower riser 2.
In one embodiment, the top of described top shoe 6-1 can be provided with the groove for setting up piece 7, and described top shoe 6-1 adjusts the gap between described cylindrical shell by described pad 7.Pad is arranged in the groove above upper vertical plate, according to the different-thickness of pad, can be used for adjusting the gap between cylindrical shell.
In one embodiment, described top shoe 6-1 is fixedly connected with baffle plate 8 by bolt 9, and described baffle plate 8 is fixedly installed on described upper vertical plate 1.
In another embodiment, be provided with projection below described top shoe 6-1, described projection cooperatively interacts with the take-up housing 10 being provided with respective aperture, and described take-up housing 10 is fixedly installed on described upper vertical plate 1.
The connection structure of top shoe and upper vertical plate has a variety of form, as long as top shoe can reliably be fixed on upper vertical plate.Such as, wherein a kind of version as shown in Figure 4, can be a kind of fastening type slide block structure, top shoe and baffle plate be fixed together, be then integrally fixedly connected with upper vertical plate by bolt by bolt; Also have a kind of version as shown in Figure 5, can be a kind of support formula slide block structure, below top shoe, to be provided with projection, take-up housing is provided with corresponding hole, hole on projection and take-up housing cooperatively interacts, and top shoe is supported by take-up housing, and then take-up housing is bolted and is installed on upper vertical plate.
Wherein said sliding block 6-2 is fixedly connected with described baffle plate 8, and gear leans against on described lower riser 2.Sliding block is fixedly connected with baffle plate, such as can be bolted, then sliding block leans against on lower riser by baffle plate gear, the front and back of sliding block and lower riser does not all retrain, because baffle plate and sliding block form " L " type structure, lower riser, between baffle plate and sliding block, only relies on the position relationship of baffle plate and lower riser can realize the effect retraining and support each joint telescopic boom.
Preferably, described baffle plate 8 comprises nylon baffle and iron baffle plate, and described sliding block is fixed on described lower riser 2 by described nylon baffle and described iron baffle plate, and wherein said nylon baffle is between described iron baffle plate and described lower riser 2.
Baffle plate is used for being fixedly connected with slide block and upper vertical plate or lower riser, and wherein iron baffle plate is used for fixing arm head sliding block, prevents sliding block from coming off from each joint arm; The effect of nylon baffle is the sliding block of auxiliary fixing arm head.
In addition, the hole for mounting electrical part can also be provided with in the side of upper vertical plate 1.This hole may be used for installation and measuring device, detects the distance between adjacent cylindrical shell, and when the distance between adjacent cylindrical shell reaches the minor increment preset, this detector can give the alarm; Or this hole also may be used for installing other controllers, sensor electricity piece.
For achieving the above object, the utility model additionally provides a kind of crane arm, comprises above-mentioned one-board jib tip structure.
The utility model adopts one-board jib tip structure, upper vertical plate and lower riser insert cylindrical shell and integral with barrel soldering, when ensureing enough rigidity, slide block is arranged reliable, the requirement of arm head and cylindrical shell weld seam simultaneously also reduces, and under crane arm rolls up state as shown in Figure 6, the gap between each joint telescopic boom is less, actv. improves the overlap joint ratio of each joint telescopic boom, improves lifting performance.As shown in Figure 7, be the structural representation of crane arm under the state of stretching out, under this state, each joint arm head portion is in released state, retrains respectively and supports each internal segment cylindrical shell.
By the explanation of the multiple embodiments to the utility model one-board jib tip structure, can find out that the embodiment of the utility model one-board jib tip structure at least has one or more advantages following:
(1) width of each joint telescopic boom head reduces, and makes head construction compacter, the spacing between effective Control arm and arm, increases overlap joint ratio, promote lifting performance.
(2) fixed form of slide block is reliable, and arm head top shoe can regulate gap between cylindrical shell by pad.
(3) processing and manufacturing is simple, and production efficiency is high.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to detailed description of the invention of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (10)
1. an one-board jib tip structure, it is characterized in that, comprise upper vertical plate (1) and lower riser (2), wherein said upper vertical plate (1) is fixedly connected with described lower riser (2), described upper vertical plate (1) and described lower riser (2) can insert cylindrical shell and weld with the front end of described cylindrical shell, described upper vertical plate (1) and described lower riser (2) are provided with centering structure, and described centering structure is used for preventing from twisting between adjacent cylindrical shell.
2. one-board jib tip structure according to claim 1, it is characterized in that, described centering structure comprises centering plate (3), centering plate (3) top of described upper vertical plate (1) is provided with centring hole (4), centering plate (3) below of described lower riser (2) is provided with protruding centring hole (4).
3. one-board jib tip structure according to claim 1, it is characterized in that, the surface of described upper vertical plate (1) and described lower riser (2) is provided with the hole for fixing slide block (6) and baffle plate (8), and described upper vertical plate (1) surface is also provided with the hole for installing tow strap slide plate (5).
4. one-board jib tip structure according to claim 3, it is characterized in that, described slide block (6) comprises top shoe (6-1) and sliding block (6-2), wherein said top shoe (6-1) is installed on described upper vertical plate (1), and described sliding block (6-2) is installed on described lower riser (2).
5. one-board jib tip structure according to claim 4, it is characterized in that, the top of described top shoe (6-1) is provided with the groove for setting up piece (7), and described top shoe (6-1) adjusts the gap between described cylindrical shell by described pad (7).
6. one-board jib tip structure according to claim 4, it is characterized in that, described top shoe (6-1) is fixedly connected with baffle plate (8) by bolt (9), and described baffle plate (8) is fixedly installed on described upper vertical plate (1).
7. one-board jib tip structure according to claim 4, it is characterized in that, described top shoe (6-1) below is provided with projection, described projection cooperatively interacts with the take-up housing (10) being provided with respective aperture, and described take-up housing (10) is fixedly installed on described upper vertical plate (1).
8. one-board jib tip structure according to claim 4, is characterized in that, described sliding block (6-2) is fixedly connected with described baffle plate (8), and gear leans against on described lower riser (2).
9. the one-board jib tip structure according to claim 6 or 8, it is characterized in that, described baffle plate (8) comprises nylon baffle and iron baffle plate, described sliding block is fixed on described lower riser (2) by described nylon baffle and described iron baffle plate, and wherein said nylon baffle is positioned between described iron baffle plate and described lower riser (2).
10. a crane arm, is characterized in that, comprises the one-board jib tip structure as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740472.6U CN204324761U (en) | 2014-12-01 | 2014-12-01 | A kind of one-board jib tip structure and crane arm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740472.6U CN204324761U (en) | 2014-12-01 | 2014-12-01 | A kind of one-board jib tip structure and crane arm |
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| CN204324761U true CN204324761U (en) | 2015-05-13 |
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| CN201420740472.6U Active CN204324761U (en) | 2014-12-01 | 2014-12-01 | A kind of one-board jib tip structure and crane arm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731278A (en) * | 2016-04-25 | 2016-07-06 | 徐州重型机械有限公司 | Cargo-boom sliding block assembly, cargo boom and engineering machine |
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2014
- 2014-12-01 CN CN201420740472.6U patent/CN204324761U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731278A (en) * | 2016-04-25 | 2016-07-06 | 徐州重型机械有限公司 | Cargo-boom sliding block assembly, cargo boom and engineering machine |
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