CN205740104U - A kind of novel variable cross section truss arm standard knot - Google Patents
A kind of novel variable cross section truss arm standard knot Download PDFInfo
- Publication number
- CN205740104U CN205740104U CN201620424512.5U CN201620424512U CN205740104U CN 205740104 U CN205740104 U CN 205740104U CN 201620424512 U CN201620424512 U CN 201620424512U CN 205740104 U CN205740104 U CN 205740104U
- Authority
- CN
- China
- Prior art keywords
- plane
- web member
- rotation
- variable cross
- arm
- 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.)
- Active
Links
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model discloses a kind of novel variable cross section truss arm standard knot, including two luffing plane girder arms, and connect at least one telescopic adjustment unit in-between, each telescopic adjustment unit includes left plane of rotation web member, the right-hand rotation plane web member being respectively hinged on luffing plane girder arm, left plane of rotation web member, right-hand rotation plane web member and a wherein luffing plane girder upper-arm circumference triangularity；Each left plane of rotation web member and right-hand rotation plane web member all include upper rotary plane web member and lower plane of rotation web member, upper rotary plane web member and lower plane of rotation web member are by a sleeve connection, and are provided with the web member hole no less than 2 along its axial direction on upper rotary plane web member and lower plane of rotation web member.This variable cross section truss arm standard knot, has the feature of conventional type truss arm simultaneously, and by variable cross section, improves the lateral stability of jib, thus promote the bearing capacity of jib.
Description
Technical field
This utility model relates to technical field, particularly relates to a kind of novel variable cross section truss arm standard knot.
Background technology
It is owing to jib intensity determines greatly that the lifting performance of crawler crane has, for big brachium by a small margin under lifting performance, often caused by jib stability in the large determine, owing to crawler crane can be reduced to the primary structure member of two sections of freely-supporteds at luffing in-plane, and at the primary structure member of plane of rotation cantilever beam to be reduced to, therefore the width of jib is the critically important factor determining lifting performance.
Crawler crane boom is all Welding Structure at present, the corresponding different cross section of different volume production and the jib of tubing, after dispatching from the factory the most fixing, when run into big brachium descend by a small margin lifting performance under operating mode can not meet use require time, can only change the crane of higher lifting capacity, this utility model devises variable cross section truss arm standard knot, when needs lifting changes operating mode lifting performance, only telescopic boom section need to be widened, just can promote the lifting performance of this operating mode.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, this utility model provides a kind of novel variable cross section truss arm standard knot, has the feature of conventional type truss arm simultaneously, and passes through variable cross section, improve the lateral stability of jib, thus promote the bearing capacity of jib.
This utility model be the technical scheme is that a kind of novel variable cross section truss arm standard knot, including two luffing plane girder arms, and connect at least one telescopic adjustment unit in-between, each telescopic adjustment unit includes left plane of rotation web member, the right-hand rotation plane web member being respectively hinged on luffing plane girder arm, left plane of rotation web member, right-hand rotation plane web member and a wherein luffing plane girder upper-arm circumference triangularity；Each left plane of rotation web member and right-hand rotation plane web member all include upper rotary plane web member and lower plane of rotation web member, upper rotary plane web member and lower plane of rotation web member are by a sleeve connection, and being provided with the web member hole no less than 2 along its axial direction on upper rotary plane web member and lower plane of rotation web member, sleeve is connected with one of them web member hole of upper rotary plane web member and lower plane of rotation web member respectively by two bearing pins.This utility model is designed with the plane of rotation web member of band connecting hole, is connected on luffing plane girder arm by bearing pin.Luffing plane girder arm uses conventional Welding Structure, welds otic placode in plane of rotation direction, is used for connecting plane of rotation web member.Design with the branch sleeve of two connecting holes, be connected the change realizing jib plane of rotation width by different holes with the hole on plane of rotation web member.When the hole on plane of rotation web member is connected with the hole on branch sleeve, the width of jib is B, and when the hole on plane of rotation web member is connected with the hole on branch sleeve, the width of jib is B+A, and numerical value A is change width value.
Further improvement of the utility model is, luffing plane girder arm connects and is additionally provided with auricle on the direction of left plane of rotation web member and right-hand rotation plane web member, and auricle is rotatably attached left plane of rotation web member and right-hand rotation plane web member by bearing pin.
Further improvement of the utility model is, the quantity in the web member hole of each upper rotary plane web member and lower plane of rotation web member is 2.
Further improvement of the utility model is, some telescopic adjustment unit are connected between two luffing plane girder arms.
Compared with prior art, the beneficial effects of the utility model are: variable cross section truss arm standard knot of the present utility model includes luffing plane girder arm, plane of rotation web member, branch sleeve, bearing pin, and bearing pin can use the fixed form of routine.By bearing pin, connect luffing plane girder arm, plane of rotation web member, form two panels truss arm；Plane of rotation web member, branch sleeve is connected again by bearing pin.Jib narrow mode: the hole on plane of rotation web member is connected with the hole on branch sleeve.Jib wide mode: the hole on plane of rotation web member is connected with the hole on branch sleeve.This variable cross section truss arm standard knot, has the feature of conventional type truss arm simultaneously, and by variable cross section, improves the lateral stability of jib, thus promote the bearing capacity of jib.This utility model can adjust standard knot jib width as required when being applied on crawler crane, narrow mode is used during normal lifting, when run into need increase plane of rotation stability operating mode (such as wind-powered electricity generation lifting) time, use wide mode, improve lifting performance during equal brachium.
Accompanying drawing explanation
The structural representation of one embodiment of a kind of novel variable cross section truss arm standard knot of Fig. 1
Fig. 2 is the jib change width schematic diagram of the embodiment of Fig. 1；
Fig. 3 is the luffing range of cantilever support floor map of the embodiment of Fig. 1；
Fig. 4 is the jib plane of rotation schematic diagram of the embodiment of Fig. 1；
Fig. 5 is the set sketch drawing of the embodiment of Fig. 1；
Fig. 6 is the plane of rotation web member figure of the embodiment of Fig. 1；
Wherein: 1-luffing plane girder arm, 2-left plane of rotation web member, 3-sleeve, 4-bearing pin, 5-right-hand rotation plane web member, 6-upper rotary plane web member, plane of rotation web member under 7-, 8-web member hole, 9-auricle, 10-sleeve hole.
Detailed description of the invention
In order to deepen understanding of the present utility model, further illustrating this utility model with embodiment below in conjunction with the accompanying drawings, this embodiment is only used for explaining this utility model, does not constitute protection domain of the present utility model and limits.
As shown in Figure 1, a kind of novel variable cross section truss arm standard knot, including two luffing plane girder arms 1, and connect at least one telescopic adjustment unit in-between, each telescopic adjustment unit includes left plane of rotation web member 2, the right-hand rotation plane web member 5 being respectively hinged on luffing plane girder arm 1, left plane of rotation web member 2, right-hand rotation plane web member 5 and wherein a luffing plane girder arm 1 surround triangle；Each left plane of rotation web member 2 and right-hand rotation plane web member 5 all include upper rotary plane web member 6 and lower plane of rotation web member 7, upper rotary plane web member 6 and lower plane of rotation web member 7 are connected by a sleeve 3, and being provided with the web member hole 8 no less than 2 along its axial direction on upper rotary plane web member 6 and lower plane of rotation web member 7, sleeve 3 is connected with one of them web member hole 8 of upper rotary plane web member 6 and lower plane of rotation web member 7 respectively by two bearing pins 4.This utility model is designed with the plane of rotation web member of band connecting hole, is connected on luffing plane girder arm by bearing pin.Luffing plane girder arm uses conventional Welding Structure, welds otic placode in plane of rotation direction, is used for connecting plane of rotation web member.Design with the branch sleeve of two connecting holes, be connected the change realizing jib plane of rotation width by different holes with the hole on plane of rotation web member.See shown in Fig. 2, Fig. 3 and Fig. 4, when the hole 2 on plane of rotation web member 2 is connected with the hole on branch sleeve 3, the width of jib is B, when the hole 1 on plane of rotation web member 2 is connected with the hole on branch sleeve 3, the width of jib is B+A, and numerical value A is change width value.
In the above-described embodiments, seeing Fig. 1, luffing plane girder arm 1 connects and is additionally provided with auricle 9 on the direction of left plane of rotation web member 2 and right-hand rotation plane web member 5, auricle 9 is rotatably attached left plane of rotation web member 2 and right-hand rotation plane web member 5 by bearing pin 4.Seeing Fig. 6, the quantity in the web member hole 8 of each upper rotary plane web member 6 and lower plane of rotation web member 7 is 2, and as shown in Figure 1 and Figure 5, sleeve 3 is provided with sleeve hole 10 in the position, web member hole 8 of corresponding upper rotary plane web member 6 and lower plane of rotation web member 7.Some telescopic adjustment unit are connected between two luffing plane girder arms 1.
This utility model can adjust standard knot jib width as required when being applied on crawler crane, narrow mode is used during normal lifting, when run into need increase plane of rotation stability operating mode (such as wind-powered electricity generation lifting) time, use wide mode, improve lifting performance during equal brachium.
What embodiment of the present utility model was announced is preferred embodiment; but it is not limited thereto; those of ordinary skill in the art; easily according to above-described embodiment; understand spirit of the present utility model; and make different amplifications and change, but as long as without departing from spirit of the present utility model, all in protection domain of the present utility model.
Claims (4)
1. a novel variable cross section truss arm standard knot, it is characterized in that: include two luffings plane girder arm (1), and connect at least one telescopic adjustment unit in-between, each described telescopic adjustment unit includes left plane of rotation web member (2), right-hand rotation plane web member (5) being respectively hinged on luffing plane girder arm (1), described left plane of rotation web member (2), right-hand rotation plane web member (5) and wherein luffing plane girder arm (1) surround triangle；
Each described left plane of rotation web member (2) and right-hand rotation plane web member (5) all include upper rotary plane web member (6) and lower plane of rotation web member (7), described upper rotary plane web member (6) and lower plane of rotation web member (7) are connected by a sleeve (3), and it is provided with the web member hole (8) no less than 2 along its axial direction on upper rotary plane web member (6) and lower plane of rotation web member (7), described sleeve (3) is connected with one of them web member hole (8) of upper rotary plane web member (6) and lower plane of rotation web member (7) respectively by two bearing pins (4).
2.
A kind of novel variable cross section truss arm standard knot according to claim 1, it is characterized in that: described luffing plane girder arm (1) is additionally provided with auricle (9) on the upper direction connecting left plane of rotation web member (2) and right-hand rotation plane web member (5), and described auricle (9) is rotatably attached left plane of rotation web member (2) and right-hand rotation plane web member (5) by bearing pin (4).
A kind of novel variable cross section truss arm standard knot the most according to claim 1, it is characterised in that: the quantity in the web member hole (8) of each described upper rotary plane web member (6) and lower plane of rotation web member (7) is 2.
A kind of novel variable cross section truss arm standard knot the most according to claim 1, it is characterised in that: some described telescopic adjustment unit are connected between two luffings plane girder arm (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620424512.5U CN205740104U (en) | 2016-05-11 | 2016-05-11 | A kind of novel variable cross section truss arm standard knot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620424512.5U CN205740104U (en) | 2016-05-11 | 2016-05-11 | A kind of novel variable cross section truss arm standard knot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205740104U true CN205740104U (en) | 2016-11-30 |
Family
ID=57368165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620424512.5U Active CN205740104U (en) | 2016-05-11 | 2016-05-11 | A kind of novel variable cross section truss arm standard knot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205740104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002254A (en) * | 2017-12-21 | 2018-05-08 | 徐工集团工程机械股份有限公司 | A kind of cross attachment device suitable for A arm framves |
| CN109264595A (en) * | 2018-11-15 | 2019-01-25 | 徐工集团工程机械股份有限公司 | A kind of adjusting method and regulating device of deformable truss arm |
-
2016
- 2016-05-11 CN CN201620424512.5U patent/CN205740104U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002254A (en) * | 2017-12-21 | 2018-05-08 | 徐工集团工程机械股份有限公司 | A kind of cross attachment device suitable for A arm framves |
| CN109264595A (en) * | 2018-11-15 | 2019-01-25 | 徐工集团工程机械股份有限公司 | A kind of adjusting method and regulating device of deformable truss arm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205740104U (en) | A kind of novel variable cross section truss arm standard knot | |
| CN105836638A (en) | Combined type cantilever crane and hoisting equipment | |
| CN103466472A (en) | Auxiliary arm system and crawler crane | |
| CN102674167B (en) | Integrated arm frame and crane with arm frame | |
| CN205312931U (en) | Modular cantilever crane and hoisting equipment | |
| CN101434369A (en) | Flat top tower crane with tetragon cross section boom support | |
| CN107140557B (en) | Special arm support structure for wind power and crane | |
| CN204626985U (en) | A kind of arm head syndeton and concrete mixer | |
| CN202924633U (en) | Cargo boom pull rod and tower crane comprising cargo boom pull rod | |
| CN203498883U (en) | Telescopic movable arm hopper rod composite operation mechanism | |
| CN203474330U (en) | Variable-amplitude pulley wheel assembly and tower crane provided with variable-amplitude pulley wheel assembly | |
| CN203558766U (en) | Multipoint variable-amplitude lorry-mounted crane | |
| CN202730653U (en) | Wide-angle swinging and hoisting hydraulic cable-across crane | |
| CN205709605U (en) | Combination type jib and crane gear | |
| CN102674168B (en) | Reinforced boom and crane with reinforced boom | |
| CN205709608U (en) | Crane and rotating platform of crane | |
| CN106467275B (en) | A kind of basic arm connection structure and with vehicle arm-folding crane | |
| CN208829198U (en) | A kind of forklift automatic hydraulic levelling device | |
| CN203664947U (en) | Tower-type cargo boom transitional joint splicing welding tool | |
| CN203568661U (en) | Built-in tail-sliding lifting lug | |
| CN201952137U (en) | Combined transition arm support | |
| CN203392783U (en) | Hanger rod used by construction elevator | |
| CN207390868U (en) | A kind of plate drawing system for being used to fix auxiliary operating mode | |
| CN206069242U (en) | Combination type arm support and crane gear | |
| CN203767892U (en) | Auxiliary jib system and crawler crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180510 Address after: 221000 science and technology building, 21-6 Yang Shan Road, Xuzhou economic and Technological Development Zone, Xuzhou, Jiangsu Patentee after: Xuzhou Weier Heavy Industry Technology Co., Ltd. Address before: 410013 8, 5 times green square 5, Yinshan Road, Yuelu District, Changsha, Hunan. Patentee before: Hunan best technology Co., Ltd. |