CN2714525Y - Telescopic assembling type crane jib - Google Patents
Telescopic assembling type crane jib Download PDFInfo
- Publication number
- CN2714525Y CN2714525Y CN 200420035752 CN200420035752U CN2714525Y CN 2714525 Y CN2714525 Y CN 2714525Y CN 200420035752 CN200420035752 CN 200420035752 CN 200420035752 U CN200420035752 U CN 200420035752U CN 2714525 Y CN2714525 Y CN 2714525Y
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- CN
- China
- Prior art keywords
- auxiliary
- arm
- link span
- section
- principal 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a telescopic assembling type crane auxiliary jib, which comprises a first segment auxiliary jib and a second segment auxiliary jib (2) and a link span; the utility model is characterized in that the second section auxiliary jib (2) is hinged with the header of the extension arm (3) of the main arm; the extension arm (3) of the main arm is a quadrangle unequal cross section girder; the root of the arm support is a big cross section, and is hinged with the link span (4) that is connected with the main arm; the header is a small cross section, and is provided with a guide pulley (6) and a stressed pulley (5); the lower link point of the link span (4) is provided with two connecting holes (7, 8) for connecting different auxiliary arm supports. The utility model is a telescopic assembling type crane auxiliary jib with high hoisting height, big elevating capacity, free combination, simple structure and easy producing.
Description
Technical field
The utility model relates to the telescopic combined auxiliary of a kind of hoisting crane.
Background technology
Along with the develop rapidly of national economy, the demand of main equipment is on the increase, and the technology and the manufacturing capacity of main equipment reach its maturity simultaneously.In the middle of the development of the national economy, usually need height with many meters of liftings to 70 such as equipment or raw MAT'L.The principal arm of hoisting crane can only be 5 joint arms at present, and 48 meters of length will reach more than 70 meter height, and hoisting capacity is 4.5 tons, requires auxiliary that different length must be arranged, and cooresponding different hoisting capacity.
The auxiliary of hoisting crane all has only two joints at present, and the principal arm of employing adds the first segment auxiliary and the second joint auxiliary, can only satisfy certain height, and can not satisfy for higher height.
The utility model content
But technical problem to be solved in the utility model provides, and a kind of lifting is highly high, the telescopic combined auxiliary of hoisting crane of the big independent assortment of hoisting capacity.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: the telescopic combined auxiliary of a kind of hoisting crane, comprise the first segment auxiliary and the second joint auxiliary, it is characterized in that: described second joint auxiliary and principal arm extension arm head are hinged, described principal arm extension arm is a quadrangle unequal section truss, the jib root be the heavy in section and be hinged with can with principal arm bonded assembly link span, head is small bore and leading sheave is installed and stressed pulley, is provided with two connecting bores at the lower link point place of described link span and is used to connect different secondary arm frame usefulness.
Adopt the telescopic combined auxiliary of hoisting crane of technique scheme, owing to installed the principal arm extension arm additional at the original first segment auxiliary and the second joint auxiliary basis, thereby extended the length of whole arm, satisfied the needs of lifting height, but be that a kind of lifting is highly high, the big independent assortment of hoisting capacity and hoisting crane simple in structure, easily manufactured, with low cost telescopic combined auxiliary.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the link span structural representation;
Fig. 3 is an I place enlarged drawing among Fig. 2;
Fig. 4 is Fig. 2 birds-eye view.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the first segment auxiliary 1 and the second joint auxiliary 2 are hinged, the second joint auxiliary 2 is hinged with principal arm extension arm 3 heads, principal arm extension arm 3 is a quadrangle unequal section truss, the jib root be the heavy in section and be hinged with can with principal arm bonded assembly link span 4, head is small bore and leading sheave 6 is installed and stressed pulley 5, is provided with two connecting bores 7,8 at the lower link point place of described link span 4 and is used to connect different secondary arm frame usefulness.
Principal arm extension arm 3 is in order to improve the height of principal arm again, to be similar to the joint of the 6th on principal arm arm.Principal arm extension arm 3 itself can not pendulum angle, during installation, is suspended on the stub axle on the principal arm head by other crane, with 4 bearing pins they is coupled together.
Because principal arm extension arm 3 is the variable section truss, so in light weight, whole stressed even.The jib root is the heavy in section, and head is a small bore, and head is equipped with track adjusting wheel 6 and stressed pulley 5, is characterized in that root is connected with link span 4, and head can be connected with the second joint auxiliary 2 with first segment auxiliary 1, and the cross section is a quadrangle unequal section truss.
Principal arm extension arm 3 adds the first segment auxiliary 1 and the second joint auxiliary 2, equally also is in order to improve lifting altitude.Before the work, must the first segment auxiliary 1 and the second joint auxiliary 2 be received on principal arm extension arm 3 heads, they are hinged together by 4 bearing pins with other crane.
In the time of in first segment auxiliary 1 is retracted into the second joint auxiliary 2, can obtain a kind of work operating mode.First segment auxiliary 1 head has a stressed pulley 7 of guiding.Steel rope one end connects the elevator face, other end connecting shackle, and middle by the stressed pulley 5 of guiding on the auxiliary, whole auxiliary plays the effect of support.
When first segment auxiliary 1 stretches out the second joint auxiliary 2 entirely, can obtain another kind of operating mode work.
First segment auxiliary 1 adds the second joint auxiliary 2, mainly is in order to satisfy the requirement of various operating mode work, equally also is in order to improve lifting altitude.In addition, first segment auxiliary 1 and second saves auxiliary 2, can be installed in the left side of principal arm, is convenient to hoisting crane and carries.During work, behind the right side beat of auxiliary by principal arm, behind the right alignment of a hole with the shaft clevis of auxiliary and the stub axle on the principal arm head, 4 bearing pins are installed, like this, major and minor arm is even connected.Its principle of work is the same, and the first segment auxiliary 1 and the second joint auxiliary 2 are according to the needs of operating mode, angle that can the auxiliary beat is certain.
Principal arm extension arm 3 of the present utility model adopts quadrangle unequal section truss, and stronger than triangular truss anti-bending strength, chord member and web member all adopt high tensile steel tube, and its resistance to torsion is strong.The utility model adopts three joint auxiliarys, and corresponding effect is all arranged separately, can auxiliary be combined according to the needs of different operating modes simultaneously, also they separately can be used.Link span 4, principal arm extension arm 3, the second joint auxiliary 2 are the variable section truss, and in light weight, whole stressed even, auxiliary is long, lifting is highly high, and hoisting capacity is big.
Claims (1)
- The telescopic combined auxiliary of a kind of hoisting crane, comprise the first segment auxiliary (1) and the second joint auxiliary (2), and link span, it is characterized in that: the described second joint auxiliary (2) is hinged with principal arm extension arm (3) head, described principal arm extension arm (3) is a quadrangle unequal section truss, the jib root be the heavy in section and be hinged with can with principal arm bonded assembly link span (4), head is small bore and leading sheave (6) is installed and stressed pulley (5), is provided with two connecting bores (7,8) at the lower link point place of described link span (4) and is used to connect different secondary arm frame usefulness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420035752 CN2714525Y (en) | 2004-04-30 | 2004-04-30 | Telescopic assembling type crane jib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420035752 CN2714525Y (en) | 2004-04-30 | 2004-04-30 | Telescopic assembling type crane jib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2714525Y true CN2714525Y (en) | 2005-08-03 |
Family
ID=34871473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420035752 Expired - Lifetime CN2714525Y (en) | 2004-04-30 | 2004-04-30 | Telescopic assembling type crane jib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2714525Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823671A (en) * | 2009-01-29 | 2010-09-08 | 马尼托沃克起重机集团（法国）公司 | Cantilever with distributing tower hoisting crane of folding device |
| CN109305630A (en) * | 2018-12-11 | 2019-02-05 | 中联重科股份有限公司 | Combination auxiliary, cantilever crane and the crane of crane |
| CN109534191A (en) * | 2018-12-11 | 2019-03-29 | 中联重科股份有限公司 | Auxiliary, cantilever crane and the crane of crane |
-
2004
- 2004-04-30 CN CN 200420035752 patent/CN2714525Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823671A (en) * | 2009-01-29 | 2010-09-08 | 马尼托沃克起重机集团（法国）公司 | Cantilever with distributing tower hoisting crane of folding device |
| CN109305630A (en) * | 2018-12-11 | 2019-02-05 | 中联重科股份有限公司 | Combination auxiliary, cantilever crane and the crane of crane |
| CN109534191A (en) * | 2018-12-11 | 2019-03-29 | 中联重科股份有限公司 | Auxiliary, cantilever crane and the crane of crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140430 Granted publication date: 20050803 |