CN2238821Y - Self-propelling expansion cargo boom of tower crane - Google Patents
Self-propelling expansion cargo boom of tower crane Download PDFInfo
- Publication number
- CN2238821Y CN2238821Y CN 94225507 CN94225507U CN2238821Y CN 2238821 Y CN2238821 Y CN 2238821Y CN 94225507 CN94225507 CN 94225507 CN 94225507 U CN94225507 U CN 94225507U CN 2238821 Y CN2238821 Y CN 2238821Y
- Authority
- CN
- China
- Prior art keywords
- telescopic boom
- plate
- arm
- boom
- pin
- 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
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model relates to the automatic telescopic cargo boom of tower crane. An amplitude carrier (8) is pulled on a telescopic boom (6); pin shafts (12), (18) are unpinned, and a pin shaft (24) is inserted; when the amplitude carrier is pulled toward the amplitude increasing direction, the telescopic arm is extended out, a screw bolt (26), a gasket (27) and a nut (28) are used to connected a track (25) with the lower chord of the telescopic arm; the pin shafts (12), (18) are inserted, the pin shaft (24) is unpinned, and the cargo boom lies in the operating state after extension; after the track (25) is dismounted, the pin shafts (12), (18) are unpinned, the pin shaft (24) is inserted, and the amplitude carrier is pulled to the amplitude reducing direction; the pin shafts (12), (18) are inserted, the pin shaft (24) is unpinned, and the cargo boom lies in the operating state after retraction. The utility model has the telescopic function.
Description
The utility model relates to tower crane telescopic boom voluntarily.This utility model belongs to the vehicle for construction professional domain, and related steel structure mechanical component are the conventional mechanical design.
At present, the level luffing trolley type boom length that is installed on the tower crane can not change, the relatively nervous construction site in the space, or when needing lengthening jib length in work progress, this kind crane arm is difficult for satisfying construction requirement.
The purpose of this utility model is to provide a kind of Telescopic that possessed, and only nationality helps amplitude variation trolley can extend or shorten the working arm that is used for tower crane of length.
The formula hoisting crane of taking telescopic boom voluntarily comprises basic arm (1), cover arm (2), telescopic boom (6).Basic arm does not have special feature with common crane arm on structure design, no longer repeat.Pull bar (9) is a tower crane telescopic boom pull bar voluntarily, supporting telescopic boom voluntarily, an end links to each other with tower crane tower cap (not shown), and the other end links to each other with cover arm (2), pull bar (9) plays an important role to improving telescopic boom force-bearing situation voluntarily.
Cover arm lower edge (16) is selected the shaped steel of channel-section steel or similar channel-section steel for use, and the two lower edge channel-section steel edges of a wing are relative.Cover arm lower edge (16) is as the orbit of amplitude variation trolley (8).Telescopic boom lower edge (15) is inserted in the arm lower edge.Have some groups of rotating support rollers (17) separated by a distance supporting telescopic boom in the cover arm two lower edge channel-section steels, support roller must be on the same horizontal surface.
Cover arm top boom (10) is welding some groups of ears plates (11), and telescopic boom top boom (21) is welded with the ears plate (13) with ears plate (11) pairing; Ears plate (11), (13) can be by bearing pin (12) pin jails.Cover arm lower edge is welded with monaural plate (20), and the telescopic boom lower edge is welded with the monaural plate (19) with monaural plate (20) pairing; Monaural plate (19), (20) can be by bearing pin (18) pin jails.After bearing pin (12), (18) were inserted ears plate (11), (13) and monaural plate (19), (20) respectively, cover arm and telescopic boom were connected as a single entity.The telescopic boom head position is welded with otic placode (23), on amplitude variation trolley (8) vertical beam pin-and-hole is arranged, and after otic placode (23) interted with bearing pin (24), amplitude variation trolley can be connected as a single entity with telescopic boom.
Luffing steel rope (29) is walked around leading sheave (7), (4), (3) on the telescopic boom successively and the leading sheave (5) that overlaps on the arm is involved in the luffing mechanism (not shown).The segmentation of telescopic boom lower edge is welded with block (14) in case telescopic boom horizontal rotation face direction is rocked.Telescopic boom lower edge afterbody is welded with slide block (22), and when telescopic boom stretched, slide block slided in lower edge channel-section steel (16).And the contact surface of cover arm lower edge channel-section steel and block and slide block should be planished.
Tower crane telescopic boom telescopic process voluntarily is such: amplitude variation trolley is reached on the telescopic boom, pull out bearing pin (12), (18), interspersed upper pin (24), amplitude variation trolley is opened towards the amplitude augment direction, telescopic boom stretches out, with bolt (26) packing ring (27) nut (28) track (25) and telescopic boom lower edge are linked, after laying track (25), cover arm lower edge channel-section steel upper surface is in the same plane with the upper surface that is associated in the track (25) of telescopic boom lower edge, as the orbit of amplitude variation trolley, extract bearing pin (24), insert bearing pin (12), (18), elongation process finishes, and crane arm is in running order.The withdrawal process is identical substantially with said process, and difference is, removes track (25) before the withdrawal, and amplitude variation trolley reduces direction towards amplitude and opens.
During the utility model was implemented, flexible distance can be needed to determine that position, the number of each parts are also provided by design by design.
The utlity model has simple in structure, easy and simple to handle, advantage such as safety is good, and manufacturing process is simple.Can be used for large and medium-sized tower crane.
Fig. 1 is a tower crane telescopic boom front elevation voluntarily.
Fig. 2 is a tower crane telescopic boom elongation back front elevation voluntarily.
Fig. 3 is I-I, II-II cutaway view, and ratio is amplified.
Fig. 4 is III-III cutaway view, and ratio is amplified.
Fig. 5 is IV-IV cutaway view, and ratio is amplified.
Claims (2)
1, tower crane telescopic boom voluntarily comprises basic arm (1), cover arm (2), telescopic boom (6), it is characterized in that: telescopic boom is inserted in the cover arm, pull bar (9) diagonal ligament telescopic boom voluntarily, one end is fixed on the tower crane tower cap, the other end links to each other with cover arm (2), there is rotating support roller (17) supporting telescopic boom in cover arm lower edge (16) channel-section steel, steel rope (29) is walked around the leading sheave (7) on the telescopic boom successively, (4), (3) and the leading sheave (5) of cover on the arm, be involved in luffing mechanism, cover arm top boom (10) is welding ears plate (11), telescopic boom top boom (21) is welded with the ears plate (13) with ears plate (11) pairing, ears plate (11), (13) can be by bearing pin (12) pin jail, cover arm lower edge is welded with monaural plate (20), the telescopic boom lower edge is welded with the monaural plate (19) with monaural plate (20) pairing, monaural plate (19), (20) can be by bearing pin (18) pin jail, when bearing pin (12), (18) insert ears plate (11) respectively, (13) and monaural plate (19), (20) after, cover arm and telescopic boom are connected as a single entity, the telescopic boom head position is welded with otic placode (23), on amplitude variation trolley (8) vertical beam pin-and-hole is arranged, after otic placode (23) interted with bearing pin (24), amplitude variation trolley can be connected as a single entity with telescopic boom.
2, according to the tower crane of claim 1 defined telescopic boom voluntarily, it is characterized in that track (25) links to each other with the telescopic boom lower edge by bolt (26) packing ring (27) nut (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225507 CN2238821Y (en) | 1994-01-05 | 1994-01-05 | Self-propelling expansion cargo boom of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225507 CN2238821Y (en) | 1994-01-05 | 1994-01-05 | Self-propelling expansion cargo boom of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2238821Y true CN2238821Y (en) | 1996-10-30 |
Family
ID=33838684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94225507 Expired - Fee Related CN2238821Y (en) | 1994-01-05 | 1994-01-05 | Self-propelling expansion cargo boom of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2238821Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180414A (en) * | 2011-05-11 | 2011-09-14 | 湖南中联重科专用车有限责任公司 | Crane and method for folding and unfolding box-type arm of auxiliary arm of crane |
| CN107337121A (en) * | 2017-08-04 | 2017-11-10 | 王文娇 | A kind of high efficiency tower crane arm |
| CN108657968A (en) * | 2018-05-29 | 2018-10-16 | 芜湖贝浩机械科技有限公司 | One kind prevents steel cable from falling off telescopic crane |
-
1994
- 1994-01-05 CN CN 94225507 patent/CN2238821Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180414A (en) * | 2011-05-11 | 2011-09-14 | 湖南中联重科专用车有限责任公司 | Crane and method for folding and unfolding box-type arm of auxiliary arm of crane |
| WO2012151801A1 (en) * | 2011-05-11 | 2012-11-15 | 长沙中联重工科技发展股份有限公司 | Crane and method for folding and unfolding box-type boom of auxiliary boom of crane |
| CN102180414B (en) * | 2011-05-11 | 2012-12-05 | 湖南中联重科专用车有限责任公司 | Crane and method for folding and unfolding box-type arm of auxiliary arm of crane |
| CN107337121A (en) * | 2017-08-04 | 2017-11-10 | 王文娇 | A kind of high efficiency tower crane arm |
| CN107337121B (en) * | 2017-08-04 | 2023-04-25 | 辽宁天一重工有限公司 | High efficiency tower horn |
| CN108657968A (en) * | 2018-05-29 | 2018-10-16 | 芜湖贝浩机械科技有限公司 | One kind prevents steel cable from falling off telescopic crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2238821Y (en) | Self-propelling expansion cargo boom of tower crane | |
| CN209469085U (en) | A kind of architecture engineering material stockyard mobile type electric expanding rainproof canopy | |
| CN212296364U (en) | Novel structure shaft drilling machine | |
| CN2261415Y (en) | Folding arm type dual-purpose tower crane for hoisting and distributing | |
| CN208200262U (en) | A kind of four-wheel is towed, mobile model hydraulic elevating platform | |
| CN210341628U (en) | Highway bridge fishback telescoping device | |
| CN207027360U (en) | Remove roll-bending cylinder cylinder rod aid | |
| CN220244496U (en) | Installation tool for semi-trailer scraper conveying chain | |
| CN205098217U (en) | Embedded car pusher | |
| CN206407846U (en) | Crane torque arm mechanism | |
| CN212669107U (en) | Multifunctional mechanical lifting device | |
| CN205709751U (en) | A kind of big part tethered sliding dolly | |
| CN2233923Y (en) | Four-lever type combined jib frame jibbing mechanism | |
| CN2856007Y (en) | Internally lifting lifter | |
| CN217101411U (en) | Ready-package steel construction based on building energy saving technology | |
| CN220265079U (en) | Auxiliary lifting device for steel wire rope of bridge girder erection machine | |
| CN2554152Y (en) | Grab bucket maintaining platform | |
| CN2190107Y (en) | Pulley with bearing | |
| CN212832471U (en) | Hoisting accessory of bill-board super large plate installation usefulness | |
| CN218507392U (en) | Light steel structure lifting device | |
| CN212272998U (en) | Variable pitch speed reducer for wind power generation | |
| CN211681831U (en) | Mining car front suspension dismounting tool | |
| CN220116052U (en) | Vertical hanger of section of jurisdiction of area anticollision function | |
| CN2670191Y (en) | Drawing tower of girder calibrating table | |
| CN213917904U (en) | Fixed effectual tablet press fixing device for alloy powder production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: CUI ZIFENG TO: SHANDONG ARCHITECTURAL SCIENTIFIC RESEARCH INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Building Science Inst., Shandong Prov. Patentee before: Cui Zifeng |
|
| 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 |