CN2463372Y - Tower crane jacking mechanism - Google Patents
Tower crane jacking mechanism Download PDFInfo
- Publication number
- CN2463372Y CN2463372Y CN 01216243 CN01216243U CN2463372Y CN 2463372 Y CN2463372 Y CN 2463372Y CN 01216243 CN01216243 CN 01216243 CN 01216243 U CN01216243 U CN 01216243U CN 2463372 Y CN2463372 Y CN 2463372Y
- Authority
- CN
- China
- Prior art keywords
- jacking
- tower crane
- pin shaft
- utility
- cross beam
- 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
The utility model discloses a tower crane jacking mechanism, which comprises a jacking cross beam 1. An oil cylinder 2 and a jacking beam pin shaft 5 are arranged on the jacking cross beam 1, and the jacking beam pin shaft 5 is lapped and hung on a standard section foot step 4. The utility model is characterized in that a pin hole is arranged on the standard section foot step 4; a movable pin shaft 6 is arranged in the pin hole; the jacking cross beam 1 is connected with the standard section foot step 4 through the movable pin shaft 6. The jacking cross beam and the standard section foot step are fixed by the utility model, which enables all the freedom degrees of the jacking cross beam to be eliminated, and thus the safety of jacking operations of the tower crane can be ensured.
Description
The utility model relates to a kind of tower machine special mechanism, relates in particular to a kind of lifting mechanism of tower crane.
Existing lifting mechanism of tower crane comprises that jacking crossbeam and standard knot mark time, the two ends bearing pin lodge of jacking crossbeam is on standard knot is marked time in the jacking operation, no any type of fixing, there are two degree of freedom in the jacking crossbeam, the arc groove deviating to mark time and rotating in groove promptly can make progress, carelessness or unpredictable external force effect (as strong fitful wind and unexpected discharged impact) owing to the staff in the jacking operation process all can make the jacking crossbeam take off groove, the tower machine taking place topple, causes casualties.
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and a kind of safe and reliable lifting mechanism of tower crane is provided.
The purpose of this utility model can reach by following measure: a kind of lifting mechanism of tower crane, it comprises the jacking crossbeam, the jacking crossbeam is provided with oil cylinder, lifting beam bearing pin, lifting beam bearing pin lodge is on standard knot is marked time, it is characterized in that standard knot is marked time is provided with pin-and-hole, be provided with active pin shaft in the pin-and-hole, the jacking crossbeam is marked time with standard knot by active pin shaft and is linked to each other.
The utility model has following good effect compared with the prior art: because that the utility model is marked time jacking crossbeam and standard knot is fixing, has eliminated all degree of freedom of jacking crossbeam, so guaranteed the safety of tower machine jacking operation.
Below in conjunction with accompanying drawing preferred forms of the present utility model is elaborated:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment: a kind of lifting mechanism of tower crane is (referring to Fig. 1, Fig. 2), it comprises jacking crossbeam 1, the jacking crossbeam connects oil cylinder 2, and the two ends of jacking crossbeam 1 are provided with lifting beam bearing pin 5, and lifting beam bearing pin 5 lodges are marked time on 4 at standard knot, standard knot 4 bottoms of marking time increase by a pin-and-hole, be provided with active pin shaft 6 in the pin-and-hole, removable pin footstalk 3 is arranged on the active pin shaft 6, jacking crossbeam 1 is marked time by active pin shaft 6 and standard knot and 4 is connected.In the jacking operation, when jacking crossbeam 1 lodge is marked time on 4 at standard knot, active pin shaft 6 is inserted pin-and-holes, eliminate all degree of freedom of jacking crossbeam 1, and received cylinders when oil cylinder 2, when jacking crossbeam 1 need move up, active pin shaft 6 extracted get final product.
Claims (1)
1. lifting mechanism of tower crane, it comprises jacking crossbeam (1), jacking crossbeam (1) is provided with oil cylinder (2), lifting beam bearing pin (5), lifting beam bearing pin (5) lodge is marked time at standard knot on (4), it is characterized in that standard knot mark time (4) be provided with pin-and-hole, be provided with active pin shaft (6) in the pin-and-hole, jacking crossbeam (1) by active pin shaft (6) mark time with standard knot (4) link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216243 CN2463372Y (en) | 2001-02-07 | 2001-02-07 | Tower crane jacking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216243 CN2463372Y (en) | 2001-02-07 | 2001-02-07 | Tower crane jacking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2463372Y true CN2463372Y (en) | 2001-12-05 |
Family
ID=33634685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01216243 Expired - Fee Related CN2463372Y (en) | 2001-02-07 | 2001-02-07 | Tower crane jacking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2463372Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583170A (en) * | 2012-03-15 | 2012-07-18 | 徐州重型机械有限公司 | Self-elevating tower crane and elevating mechanism thereof |
| CN102602833A (en) * | 2012-03-29 | 2012-07-25 | 徐州建机工程机械有限公司 | Anti-release jacking cross beam of tower crane |
| CN104444784A (en) * | 2013-09-23 | 2015-03-25 | 深圳市特辰科技股份有限公司 | Anti-drop suspension device |
| CN106429876A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Jacking beam structure |
-
2001
- 2001-02-07 CN CN 01216243 patent/CN2463372Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583170A (en) * | 2012-03-15 | 2012-07-18 | 徐州重型机械有限公司 | Self-elevating tower crane and elevating mechanism thereof |
| CN102583170B (en) * | 2012-03-15 | 2014-04-09 | 徐州重型机械有限公司 | Self-elevating tower crane and elevating mechanism thereof |
| CN102602833A (en) * | 2012-03-29 | 2012-07-25 | 徐州建机工程机械有限公司 | Anti-release jacking cross beam of tower crane |
| CN104444784A (en) * | 2013-09-23 | 2015-03-25 | 深圳市特辰科技股份有限公司 | Anti-drop suspension device |
| CN104444784B (en) * | 2013-09-23 | 2016-09-07 | 深圳市特辰科技股份有限公司 | Anti-falling hanging device |
| CN106429876A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Jacking beam structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |