CN202558504U - Novel tower crane boom - Google Patents
Novel tower crane boom Download PDFInfo
- Publication number
- CN202558504U CN202558504U CN2012201924465U CN201220192446U CN202558504U CN 202558504 U CN202558504 U CN 202558504U CN 2012201924465 U CN2012201924465 U CN 2012201924465U CN 201220192446 U CN201220192446 U CN 201220192446U CN 202558504 U CN202558504 U CN 202558504U
- Authority
- CN
- China
- Prior art keywords
- boom
- lower chord
- lower boom
- joint
- twin adapter
- 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
Links
Images
Abstract
The utility model discloses a novel tower crane boom. A lower chord is installed on each section of the boom, a lower chord double connector is installed on the lower chord of one of the adjacent two sections of the boom, and a lower chord single connector is installed on the lower chord of the other one of the adjacent two sections of the boom. Corresponding connecting holes are respectively installed in each lower chord double connector and each lower chord single connector, each lower chord double connector and each lower chord single connector are connected through fit of the connecting holes and pin shafts, a square safe baffle which is provided with a semicircle inner hole is installed on each lower chord double connector, each semicircle inner hole is matched with a semicircle shaft portion of each pin shaft, and each safe baffle is connected with each lower chord double connector in welded mode. The novel tower crane boom is simple in structure and reliable to use, and solves the problem that the pin shafts and the baffles can easily have open welding and fall off to cause accidents, wherein the pin shafts and the baffles are connected with the lower chords of the boom. Besides, normal connection and operation of the boom are guaranteed.
Description
Technical field
The utility model relates to tower machine technology field, relates in particular to a kind of novel tower-type crane boom.
Background technology
The tower machine of prior art is in installing and using process; Adopt the triangle baffle plate to be welded on and be used for preventing that bearing pin from rotating on the lower edge plug, because triangle baffle plate weld length is little insecure, the triangle baffle plate is prone to come off when installation, use; Being easy to generate between connection bearing pin between the every joint of crane arm lower edge and the lower edge plug hole to rotate causes the bearing pin wearing and tearing to diminish or Kong Bianda; Bearing pin is scurried out, cause the every joint of crane arm to throw off, lead to serious safety misadventure the most at last.
Summary of the invention
The purpose of the utility model is exactly in installing and using process, to be prone to snap the problem that comes off, causes serious accident for the tower machine lower edge connecting pin axle bumper plate that solves the prior art existence; A kind of novel tower-type crane boom is provided; Have simple in structure, use reliably, solved crane arm lower edge connecting pin axle bumper plate and be prone to snap case accident, guaranteed the normal connection and the work of crane arm.
To achieve these goals, the utility model adopts following technical scheme:
The novel tower-type crane boom; Every joint crane arm is provided with lower boom; The adjacent two joints wherein lower boom of a joint are provided with the lower boom twin adapter, and the lower boom of another joint is provided with lower boom list joint, is respectively equipped with respective connecting on lower boom twin adapter, the lower boom list joint; Lower boom twin adapter and lower boom list joint are connected through connecting bore and bearing pin; The lower edge twin adapter is provided with square safety screen, and square baffle plate is provided with semicircle endoporus, and semicircle endoporus cooperates with semicircle shaft portion on the bearing pin.
Said safety screen and the welding of lower boom twin adapter.
The principle of work of the utility model: the every joint crane arm of the utility model is provided with lower boom; The adjacent two joints wherein lower boom of a joint are provided with the lower boom twin adapter; The lower boom of another joint is provided with lower boom list joint; Be respectively equipped with respective connecting on lower boom twin adapter, the lower boom list joint, lower boom twin adapter and lower boom list joint are connected through connecting bore and bearing pin, and the lower edge twin adapter is provided with square safety screen; Square baffle plate is provided with semicircle endoporus, and semicircle endoporus cooperates with semicircle shaft portion on the bearing pin.Safety screen and the welding of lower boom twin adapter.Adopting endoporus is that semi-round square safety screen is welded on the lower edge twin adapter; Bearing pin partly adds man-hour planing and goes a part, square safety screen not only play the guiding role but also bearing pin is installed after just be stuck on the semi-round baffle plate, increased the fusion length of baffle plate; Improved its reliability; The connection bearing pin of having stopped between the every joint of crane arm lower edge rotates and end float misalignment between the lower edge nipple orifice, has guaranteed normal connection, and the top is split weld seam and come off when having avoided installation simultaneously.
The beneficial effect of the utility model: have simple in structure, reliability is high, has solved crane arm lower edge connecting pin axle bumper plate and has been prone to snap case accident, has guaranteed the normal connection of crane arm and safe and reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the cutaway view of Fig. 1;
Among the figure, 1. lower boom twin adapter, 2. bearing pin, 4. lower boom list joint, 5. safety screen.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
The novel tower-type crane boom; Every joint crane arm is provided with lower boom; Adjacent two a joints wherein joint fly lower boom and are provided with lower boom twin adapter 1, and the lower boom of another joint is provided with lower boom list joint 4, is respectively equipped with respective connecting on lower boom twin adapter 1, the lower boom list joint 4; Lower boom twin adapter 1 is connected through connecting bore and bearing pin 2 with lower boom list joint 4; Lower edge twin adapter 1 is provided with square safety screen 5, and safety screen 5 is provided with semicircle endoporus, and semicircle endoporus cooperates with semicircle shaft portion on the bearing pin 2.Semicircle endoporus cooperates with the semicircle axle of bearing pin 2 and prevents bearing pin 2 rotations.Safety screen 5 and 1 welding of lower boom twin adapter.
Though the above-mentioned accompanying drawing that combines is described the specific embodiment of utility model; But be not restriction to the utility model protection domain; One of ordinary skill in the art should be understood that; On the basis of the technical scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of the utility model.
Claims (2)
1. novel tower-type crane boom; Every joint crane arm is provided with lower boom, and the adjacent two joints wherein lower boom of a joint are provided with the lower boom twin adapter, and the lower boom of another joint is provided with lower boom list joint; Be respectively equipped with respective connecting on lower boom twin adapter, the lower boom list joint; It is characterized in that said lower boom twin adapter and lower boom list joint are connected through connecting bore and bearing pin, the lower edge twin adapter is provided with square safety screen; The square baffle plate of safety is provided with semicircle endoporus, and semicircle endoporus cooperates with semicircle shaft portion on the bearing pin.
2. novel tower-type crane boom as claimed in claim 1 is characterized in that, said safety screen and the welding of lower boom twin adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201924465U CN202558504U (en) | 2012-04-28 | 2012-04-28 | Novel tower crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201924465U CN202558504U (en) | 2012-04-28 | 2012-04-28 | Novel tower crane boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202558504U true CN202558504U (en) | 2012-11-28 |
Family
ID=47208185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201924465U Expired - Lifetime CN202558504U (en) | 2012-04-28 | 2012-04-28 | Novel tower crane boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202558504U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103303819A (en) * | 2013-07-01 | 2013-09-18 | 张家港市天运建筑机械有限公司 | Tower crane jib bottom chord |
| CN110814610A (en) * | 2019-10-23 | 2020-02-21 | 湖南中联重科建筑起重机械有限责任公司 | Welding tool |
-
2012
- 2012-04-28 CN CN2012201924465U patent/CN202558504U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103303819A (en) * | 2013-07-01 | 2013-09-18 | 张家港市天运建筑机械有限公司 | Tower crane jib bottom chord |
| CN110814610A (en) * | 2019-10-23 | 2020-02-21 | 湖南中联重科建筑起重机械有限责任公司 | Welding tool |
| CN110814610B (en) * | 2019-10-23 | 2022-04-22 | 湖南中联重科建筑起重机械有限责任公司 | Welding tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205400737U (en) | Demolish main drive arrangement in hole of shield structure machine | |
| CN202558504U (en) | Novel tower crane boom | |
| CN105019351B (en) | Pin-connected connection assembly capable of transversely rotating for lower end of sling | |
| CN202176282U (en) | Double-insurance rotary lifting hook for well drilling in oil field | |
| CN108194491A (en) | A kind of flange connection on wind power principal axis | |
| CN202880715U (en) | Hinge-point-improved boom root structure of large luffing jib tower crane | |
| CN202193569U (en) | Coupling pin shaft of cargo boom of tower crane | |
| CN202558507U (en) | Boom of tower crane | |
| CN207064431U (en) | One kind sells square tube diameter of axle two-way locking device directly to households | |
| CN203359839U (en) | Novel pin shaft standstill locking structure | |
| CN202659650U (en) | Rotary joint subassembly for guardrail and guardrail | |
| CN203756055U (en) | Floating device for power head drilling rig | |
| CN207537032U (en) | A kind of Novel crane boom lower chord connection structure | |
| CN205533595U (en) | Arm -tie pivort fixation device | |
| CN202609811U (en) | Cushioning structure for windproof inhaul cable | |
| CN202284625U (en) | Spring sheet for transmission chain joint | |
| CN202368287U (en) | Torsion beam suspension torsion bar mounting structure | |
| CN204300601U (en) | A kind of hinge type expansion joint | |
| CN206337868U (en) | A kind of attachment means for mechanical parking equipment middle cross beam, longeron and lift shaft | |
| CN203297326U (en) | Screw bolt and pin hole positioning and connecting structure for connecting rod body and connecting rod lid | |
| CN203269410U (en) | Shaft-end anti-disengaging device for cargo booms of tower crane | |
| CN205047982U (en) | Car oil pipe fixed bolster | |
| CN203767891U (en) | Pin shaft connecting structure of cargo boom | |
| CN213326449U (en) | Tenon for connecting standard knot | |
| CN204457450U (en) | A kind of linkage and rotary drilling rig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |
|
| CX01 | Expiry of patent term |