CN201598120U - Crawler crane jib support structure - Google Patents
Crawler crane jib support structure Download PDFInfo
- Publication number
- CN201598120U CN201598120U CN2009202832420U CN200920283242U CN201598120U CN 201598120 U CN201598120 U CN 201598120U CN 2009202832420 U CN2009202832420 U CN 2009202832420U CN 200920283242 U CN200920283242 U CN 200920283242U CN 201598120 U CN201598120 U CN 201598120U
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- CN
- China
- Prior art keywords
- hinged
- jib
- auxiliary
- principal arm
- homonymy
- 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 - Fee Related
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Abstract
A crawler crane jib support structure is characterized in that the lower end of an accessory jib is hinged with the upper end of a main jib via a mounting seat, inner ends of two supporting poles are hinged with the mounting seat, a front backstop bar is hinged between the middle portion of each supporting pole and the middle portion of the same side of the accessory jib, a front pull plate component is hinged between the outer end of each supporting pole and the upper end of the same side of the accessory jib, a rear backstop bar is hinged between the middle portion of each supporting pole and the upper portion of the same side of the main jib, a rear pull plate component is hinged between the outer end of each supporting pole and the middle portion of the same side of the accessory jib, the lower end of the main jib is hinged with the front end of a turntable assembly, inner ends of two masts are hinged with the front end of the turntable assembly, a main jib rear pull plate component is hinged between the outer end of each mast and the upper end of the same side of the main jib, the outer end of each mast and the rear end of the same side of the turntable assembly are respectively provided with a fixed pulley, a tensioning rope is disposed between two fixed pulleys on the same side, two main jib backstop bars are hinged among middle sections of the two sides of the turntable assembly and the lower portions of the two sides of the main jib, and length ratio of the accessory jib to the main jib is 1: (8.75-15). The crawler crane utilizing the jib support structure lowers demands for operating field and has strong adaptability in operation.
Description
Technical field
The utility model provides a kind of crawler crane boom structure.
Background technology
At present, the jib structure of domestic big tonne (as 160 tonnes) crawler crane comprises parts such as principal arm, auxiliary, turret assembly, auxiliary is longer with respect to the length of principal arm, so that described crawler crane can't carry out lifting operation in highly conditional operation place (as Standard Factory Room).
The utility model content
The technical problems to be solved in the utility model provides a kind of crawler crane boom structure, adopts the crawler crane of this jib structure, and lower to the requirement in operation place, the comformability of operation is stronger.
For solving the problems of the technologies described above, the auxiliary of the crawler crane boom structure that the utility model provides adopts the truss arm configuration, its cross-sectional area downside is little, upside is big, there is mount pad and hinged by the upper end of mount pad and principal arm the lower end of auxiliary, the inner and the mount pad of two struts that are parallel to each other are hinged, hinged preceding anti-hypsokinesis bar between the middle part of the middle part of each strut and the homonymy of auxiliary, hinged preceding arm-tie assembly between the upper end of the outer end of each strut and the homonymy of auxiliary, hinged rear defence hypsokinesis bar between the top of the middle part of each strut and the homonymy of principal arm, hinged post-tensioning board component between the middle part of the outer end of each strut and the homonymy of principal arm, the lower end of principal arm and the front end of turret assembly are hinged, the inner of two masts that are parallel to each other and the front end of turret assembly are hinged, hinged principal arm post-tensioning board component between the upper end of the outer end of each mast and the homonymy of principal arm, respectively there is a fixed pulley rear end of the outer end of each mast and the homonymy of turret assembly, be wound with tension rope between two fixed pulleys of described homonymy, the anti-hypsokinesis bar of hinged two principal arms that are parallel to each other between the bottom of the stage casing of the both sides of turret assembly and the both sides of principal arm, the length ratio of auxiliary and principal arm is 1: (8.75～15).
For can concise description for the purpose of the problem, below this crawler crane boom structure be all abbreviated as this jib structure.
After adopting such structure, because of the length ratio of auxiliary and principal arm is 1: (8.75～15), auxiliary is shorter with respect to the length of principal arm, so that adopt the crawler crane of this jib structure in highly conditional operation place (as Standard Factory Room), can carry out lifting operation, so described crawler crane is lower to the requirement in operation place, the comformability of operation is stronger.
Angle between described auxiliary and the principal arm is 20 degree, and the length ratio of auxiliary and strut is 1: 0.94, and the angle between auxiliary and the preceding arm-tie assembly is 30 degree.Like this, auxiliary is with respect to principal arm, when identical amplitude hoists the object of larger volume, can obtain bigger lifting altitude.
Description of drawings
Fig. 1 is the structural representation of this jib structure.
The specific embodiment
Below by embodiment and accompanying drawing thereof the utility model is described in further detail:
Referring to Fig. 1, for the purpose of clearly demonstrating problem, principal arm 1, auxiliary 2, preceding arm-tie assembly 4, post-tensioning board component 7, principal arm post-tensioning board component 8 are blocked, and omit crawler crane, principal arm fishhook, auxiliary fishhook and corresponding serving.
Referring to Fig. 1, the auxiliary 2 of this jib structure adopts the truss arm configuration, its cross-sectional area downside is little, upside is big, there is mount pad 21 and hinged with the upper end of principal arm 1 by mount pad 21 lower end of auxiliary 2, the inner of two struts that are parallel to each other 5 and mount pad 21 are hinged, hinged preceding anti-hypsokinesis bar 3 between the middle part of the homonymy of the middle part of each strut 5 and auxiliary 2, hinged preceding arm-tie assembly 4 between the upper end of the homonymy of the outer end of each strut 5 and auxiliary 2, hinged rear defence hypsokinesis bar 6 between the top of the homonymy of the middle part of each strut 5 and principal arm 1, hinged post-tensioning board component 7 between the middle part of the homonymy of the outer end of each strut 5 and principal arm 1, the front end of the lower end of principal arm 1 and turret assembly 12 is hinged, the upper front end of the inner of two masts that are parallel to each other 10 and turret assembly 12 is hinged, hinged principal arm post-tensioning board component 8 between the upper end of the homonymy of the outer end of each mast 10 and principal arm 1, the outer end of each mast 10, the upper rear end of the homonymy of turret assembly 12 has fixed pulley 11 respectively, 13, the fixed pulley 11 of described homonymy, be wound with tension rope 14 between 13, the anti-hypsokinesis bar 9 of hinged two principal arms that are parallel to each other between the bottom of the top, stage casing of the both sides of turret assembly 12 and the both sides of principal arm 1, the length ratio of auxiliary 2 and principal arm 1 is 1: 12.Angle between auxiliary 2 and the principal arm 1 is 20 degree, and the length ratio of auxiliary 2 and strut 5 is 1: 0.94, and the angle between auxiliary 2 and the preceding arm-tie assembly 4 is 30 degree.
Principal arm 1 in this jib structure, auxiliary 2, mount pad 21, preceding anti-hypsokinesis bar 3, preceding arm-tie assembly 4, strut 5, rear defence hypsokinesis bar 6, post-tensioning board component 7, principal arm post-tensioning board component 8, the anti-hypsokinesis bar 9 of principal arm, mast 10, turret assembly 12 are the prior art part, and their concrete structure repeats no more here.
Claims (2)
1. crawler crane boom structure, auxiliary adopts the truss arm configuration, its cross-sectional area downside is little, upside is big, there is mount pad and hinged by the upper end of mount pad and principal arm the lower end of auxiliary, the inner and the mount pad of two struts that are parallel to each other are hinged, hinged preceding anti-hypsokinesis bar between the middle part of the middle part of each strut and the homonymy of auxiliary, hinged preceding arm-tie assembly between the upper end of the outer end of each strut and the homonymy of auxiliary, hinged rear defence hypsokinesis bar between the top of the middle part of each strut and the homonymy of principal arm, hinged post-tensioning board component between the middle part of the outer end of each strut and the homonymy of principal arm, the lower end of principal arm and the front end of turret assembly are hinged, the inner of two masts that are parallel to each other and the front end of turret assembly are hinged, hinged principal arm post-tensioning board component between the upper end of the outer end of each mast and the homonymy of principal arm, respectively there is a fixed pulley rear end of the outer end of each mast and the homonymy of turret assembly, be wound with tension rope between two fixed pulleys of described homonymy, the anti-hypsokinesis bar of hinged two principal arms that are parallel to each other between the bottom of the stage casing of the both sides of turret assembly and the both sides of principal arm, it is characterized in that: the length ratio of auxiliary and principal arm is 1: (8.75～15).
2. crawler crane boom structure according to claim 1 is characterized in that: the angle between auxiliary and the principal arm is 20 degree, and the length ratio of auxiliary and strut is 1: 0.94, and the angle between auxiliary and the preceding arm-tie assembly is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202832420U CN201598120U (en) | 2009-12-30 | 2009-12-30 | Crawler crane jib support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202832420U CN201598120U (en) | 2009-12-30 | 2009-12-30 | Crawler crane jib support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598120U true CN201598120U (en) | 2010-10-06 |
Family
ID=42809171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202832420U Expired - Fee Related CN201598120U (en) | 2009-12-30 | 2009-12-30 | Crawler crane jib support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201598120U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013075552A1 (en) * | 2011-11-22 | 2013-05-30 | 中联重科股份有限公司 | Crane and boom thereof |
| CN106904541A (en) * | 2015-12-23 | 2017-06-30 | 马尼托沃克起重机集团（法国）公司 | Automatic-expanding and folding-tower type crane including mast with the cantilever moved relative to mast |
| CN114132851A (en) * | 2021-11-23 | 2022-03-04 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane boom structure and crawler crane |
-
2009
- 2009-12-30 CN CN2009202832420U patent/CN201598120U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013075552A1 (en) * | 2011-11-22 | 2013-05-30 | 中联重科股份有限公司 | Crane and boom thereof |
| CN106904541A (en) * | 2015-12-23 | 2017-06-30 | 马尼托沃克起重机集团（法国）公司 | Automatic-expanding and folding-tower type crane including mast with the cantilever moved relative to mast |
| CN114132851A (en) * | 2021-11-23 | 2022-03-04 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane boom structure and crawler crane |
| CN114132851B (en) * | 2021-11-23 | 2022-10-28 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane boom structure and crawler crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |