CN103803424A - Two-beam gantry crane with dual-spiral and self-defense structure - Google Patents
Two-beam gantry crane with dual-spiral and self-defense structure Download PDFInfo
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- CN103803424A CN103803424A CN201310682802.0A CN201310682802A CN103803424A CN 103803424 A CN103803424 A CN 103803424A CN 201310682802 A CN201310682802 A CN 201310682802A CN 103803424 A CN103803424 A CN 103803424A
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- girder
- fixed pulley
- main beam
- jacklift
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Abstract
The invention provides a two-beam gantry crane with a dual-spiral and self-defense structure. The two-beam gantry crane comprises a main beam, support legs connected with the main beam to support the main beam, and a jacklift mechanism supported on the main beam, wherein the jacklift mechanism comprises a jacklift frame which is supported on the main beam through jacklift wheels and moves along the main beam under the drive of a running mechanism, and two sets of jack mechanisms which are arranged on the jacklift frame and used for hooking weight and completely have the same structure, a defense structure used for preventing the jacklift mechanism and the main beam from being eroded in a sun-scorched and rain-drenched way covers the main beam, and a drive structure of the jack mechanism is characterized in that the rotation directions of a winding drum and a fixed pulley shaft are opposite to each other. After the two-beam gantry crane is used, the jacklift and the main beam can be protected from being influenced by the climate such as the sun scorching and the rain drenching, so that the service life of the two-beam gantry crane can be prolonged; compared with the gantry crane with the same lifting weight, the two-beam gantry crane has the advantages that the mechanical property of the main beam can be obviously improved, and the stability and the safety can be obviously improved.
Description
Technical field
The present invention relates to a kind of gauntry crane.Particularly relate to a kind of have bispin and the double-beam gantry hoisting crane from defense structure.
Background technology
Gauntry crane is applied in the ground such as outdoor yard, dock, power station, harbour and railway goods station, carries and installation exercise, and operating environment is severe, and climate, environmental concerns are larger, and the infringement that complete machine and each operating unit are produced is larger.
Box girder gauntry crane simple in structure, be convenient to manufacture, but wind area is large, and running resistance is large, and from great, is unfavorable for saving steel.The structure of for this reason improving hoisting crane, alleviates deadweight, reduces structural weight, saves overhours, and cutting down finished cost is a general objective of current Development of Crane.
Summary of the invention
Technical matters to be solved by this invention is, provide a kind of and can solve the infringement of open work to the each mechanism of crane carriage, realize the tension and compression stress of girder from offsetting a part, there is bispin and the double-beam gantry hoisting crane from defense structure with what reduce pressure to girder.
The technical solution adopted in the present invention is: a kind of have bispin and a double-beam gantry hoisting crane from defense structure, include girder, be connected with girder for the supporting leg of support girder, be supported on the trolley body on girder, described trolley body includes by trundle and is supported on the trolley frame moving along girder on girder and under the driving of operating unit, and be arranged on two groups of identical hoist mechanisms of structure for hook block weight on trolley frame, described girder upper cover is useful on and prevents that trolley body and girder are subject to the defense structure of exposing to the sun and rain and corroding, the drive mechanism of described hoist mechanism is the drive mechanism that reel and fixed pulley axis are opposite spin.
Described defense structure includes for the shape of a saddle cover of taking shelter from rain that keeps out the wind to trolley body and girder, and be arranged on shape of a saddle cover inner side for reinforcing the reinforced rib of Π shape structure of shape of a saddle cover intensity, described reinforced rib is fixedly welded on described girder, and described shape of a saddle cover is fixedly connected with described girder by reinforced rib.
Described reinforced rib is provided with more than 2.
Described drive mechanism includes and is arranged on trolley frame the reel being driven by the retarder being connected on the output shaft of electrical motor, two ends are arranged on the fixed pulley axis on trolley frame, be fixed on the fixed pulley group being formed by 2 above fixed pulleys on fixed pulley axis, and the running block being formed by plural movable pulley that is arranged on fixed pulley group below and is connected with fixed pulley group by steel rope, the lower end of described running block is connected with suspension hook, wherein, one end of described steel rope is fixedly connected on described trolley frame, the other end is fixedly connected on described reel.
The winding structure of described steel rope is: after one end of steel rope is fixed on trolley frame, start to be wound to successively after last movable pulley and to be fixed on described reel by the order of movable pulley, fixed pulley, movable pulley, fixed pulley with immediate movable pulley and fixed pulley axis.
A kind of have bispin and the double-beam gantry hoisting crane from defense structure of the present invention, by the lifting mechanism of upper and lower bispin, realize the tension and compression stress of girder from offsetting a part, to reduce the pressure to girder; From defense structure, can solve the infringement of open work to the each mechanism of crane carriage by saddle type, also can improve the stressed of girder, thereby can realize optimization main beam structure, reach the object that alleviates deadweight.Adopt structure of the present invention, can effectively protect the weather effect such as avoid exposing to the sun and rain of crane carriage and girder, extend its service life; With the comparison of identical hoisting capacity gauntry crane, the stress performance of girder obviously improves, and stability and safety performance are obviously promoted.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram that girder of the present invention is covered with defense structure;
Fig. 2 is the structural representation that girder of the present invention removes the shape of a saddle cover in defense structure;
Fig. 3 is the birds-eye view of Fig. 2;
Fig. 4 is the lateral plan of Fig. 1;
Fig. 5 is the birds-eye view of trolley body of the present invention;
Fig. 6 is the structural representation of trolley body of the present invention;
Fig. 7 is the structural representation of steel rope coiling in the present invention.
In figure
1: girder 2: defense structure
3: supporting leg 4: retarder
5: reel 6: operating unit
7: electrical motor 8: coupler
9: floating axle 10: steel rope
11: trolley frame 12: movable pulley
13: fixed pulley 14: fixed pulley axis
15: trundle 16: suspension hook
21: reinforced rib 22: shape of a saddle cover
The specific embodiment
A kind ofly there is bispin and be described in detail from the double-beam gantry hoisting crane of defense structure of the present invention below in conjunction with embodiment and accompanying drawing.
As shown in Fig. 1～Fig. 6, a kind of have bispin and the double-beam gantry hoisting crane from defense structure of the present invention, include girder 1, be connected with girder 1 for the supporting leg 3 of support girder 1, be supported on the trolley body on girder 1, described trolley body includes by trundle 15 and is supported on the trolley frame 11 moving along girder 1 on girder 1 and under the driving of operating unit 6, and be arranged on two groups of identical hoist mechanisms of structure for hook block weight on trolley frame 11, described girder 1 upper cover is useful on and prevents that trolley body and girder 1 are subject to the defense structure 2 of exposing to the sun and rain and corroding, the drive mechanism of described hoist mechanism is the drive mechanism that reel and fixed pulley axis are opposite spin.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, described defense structure 2 includes for the shape of a saddle cover 22 of taking shelter from rain that keeps out the wind to trolley body and girder 1, and be arranged on shape of a saddle cover 22 inner sides for reinforcing the reinforced rib 21 of Π shape structure of shape of a saddle cover 22 intensity, described reinforced rib 21 is fixedly welded on described girder 1, and described shape of a saddle cover 22 is fixedly connected with described girder 1 by reinforced rib 21.Described reinforced rib 21 is provided with more than 2, and the present embodiment is provided with 3.
As Fig. 5, shown in Fig. 6, described drive mechanism includes and is arranged on trolley frame 11 reel 5 being driven by the retarder being connected on the output shaft of electrical motor 7, two ends are arranged on the fixed pulley axis 14 on trolley frame 11, be fixed on the fixed pulley group being formed by 2 above fixed pulleys 13 on fixed pulley axis 14, and the running block being formed by plural movable pulley 12 that is arranged on fixed pulley group below and is connected with fixed pulley group by steel rope 10, the lower end of described running block is connected with suspension hook 16, wherein, one end of described steel rope 10 is fixedly connected on described trolley frame 11, the other end is fixedly connected on described reel 5.
As shown in Figure 7, the winding structure of described steel rope 10 is: after one end of steel rope 10 is fixed on trolley frame 11, start to be wound to successively after last movable pulley 12 and to be fixed on described reel 5 by the order of movable pulley, fixed pulley, movable pulley, fixed pulley with immediate movable pulley 12 and fixed pulley axis 14.The winding structure of this steel rope can make reel 5 and fixed pulley axis 14 realize opposite spin, makes its force of inertia being formed by moment of rotation part of cancelling each other, thereby reduces the pressure to girder 1.
In drive mechanism, electrical motor 7 is by retarder 4, band movable reel 5 rotates, as the weight that hoists, and makes steel rope 10 around coiling 5, reel rotates counterclockwise, as shown in Figure 6, Figure 7, steel rope 10 drives movable pulley 12 successively, fixed pulley 13, because the other end of steel rope 10 is fixed on trolley frame 11, for this reason whole running block can on move, under the drive of steel rope 10, fixed pulley axis 14 clockwise rotates.Reel 5 rotates counterclockwise that to clockwise rotate the force of inertia of generation just in time contrary with fixed pulley axis 14, thus can realize from offsetting a part, thus reduce the pressure to girder, strengthen the stability of mechanism's operation.When weight declines, drum shaft clockwise rotates, and fixed pulley axis rotates counterclockwise, and the force of inertia of generation is also just in time contrary.Thereby the stress performance of girder is obviously improved, and stability and safety performance are obviously promoted.
Claims (5)
1. one kind has bispin and the double-beam gantry hoisting crane from defense structure, include girder (1), be connected with girder (1) for the supporting leg (3) of support girder (1), be supported on the trolley body on girder (1), described trolley body includes by trundle (15) and be supported on girder (1) trolley frame (11) upper and that move along girder (1) under the driving of operating unit (6), and be arranged on the upper two groups of identical hoist mechanisms of structure for hook block weight of trolley frame (11), it is characterized in that, described girder (1) upper cover is useful on and prevents that trolley body and girder (1) are subject to the defense structure (2) of exposing to the sun and rain and corroding, the drive mechanism of described hoist mechanism is the drive mechanism that reel and fixed pulley axis are opposite spin.
2. a kind of have bispin and the double-beam gantry hoisting crane from defense structure according to claim 1, it is characterized in that, described defense structure (2) includes for the shape of a saddle cover (22) of taking shelter from rain that keeps out the wind to trolley body and girder (1), and be arranged on shape of a saddle cover (22) inner side for reinforcing the reinforced rib (21) of Π shape structure of shape of a saddle cover (22) intensity, it is upper that described reinforced rib (21) is fixedly welded on described girder (1), and described shape of a saddle cover (22) is fixedly connected with described girder (1) by reinforced rib (21).
3. a kind of have bispin and the double-beam gantry hoisting crane from defense structure according to claim 2, is characterized in that, described reinforced rib (21) is provided with more than 2.
4. a kind of have bispin and the double-beam gantry hoisting crane from defense structure according to claim 1, it is characterized in that, described drive mechanism includes and is arranged on the upper reel (5) being driven by the retarder being connected on the output shaft of electrical motor (7) of trolley frame (11), two ends are arranged on the fixed pulley axis (14) on trolley frame (11), be fixed on the fixed pulley group being formed by 2 above fixed pulleys (13) on fixed pulley axis (14), and the running block being formed by plural movable pulley (12) that is arranged on fixed pulley group below and is connected with fixed pulley group by steel rope (10), the lower end of described running block is connected with suspension hook (16), wherein, one end of described steel rope (10) is fixedly connected on described trolley frame (11), the other end is fixedly connected on described reel (5).
5. a kind of have bispin and the double-beam gantry hoisting crane from defense structure according to claim 4, it is characterized in that, the winding structure of described steel rope (10) is: one end of steel rope (10) be fixed on trolley frame (11) upper after, start to be wound to successively on the reel (5) described in being fixed on after last movable pulley (12) by the order of movable pulley, fixed pulley, movable pulley, fixed pulley with immediate movable pulley (12) and fixed pulley axis (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682802.0A CN103803424B (en) | 2013-12-12 | 2013-12-12 | Two-beam gantry crane with dual-spiral and self-defense structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682802.0A CN103803424B (en) | 2013-12-12 | 2013-12-12 | Two-beam gantry crane with dual-spiral and self-defense structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103803424A true CN103803424A (en) | 2014-05-21 |
| CN103803424B CN103803424B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310682802.0A Expired - Fee Related CN103803424B (en) | 2013-12-12 | 2013-12-12 | Two-beam gantry crane with dual-spiral and self-defense structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104150370A (en) * | 2014-06-04 | 2014-11-19 | 国家电网公司 | Frame type lifting device |
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| US20100000955A1 (en) * | 2008-07-04 | 2010-01-07 | Hitachi Plant Technologies, Ltd. | Girder block lifting method and jack-up stage used therefor |
| CN201647885U (en) * | 2010-04-22 | 2010-11-24 | 重庆宝井钢材加工配送有限公司 | Trolly steel wire rope winding structure of double-beam bridge type traveling crane |
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| CN202046816U (en) * | 2011-03-22 | 2011-11-23 | 大连大起产业开发有限公司 | Portal crane with double beams and electric hoists |
| CN202766109U (en) * | 2012-09-19 | 2013-03-06 | 河南卫华重型机械股份有限公司 | Rain-proof cover and crane trolley using rain-proof cover |
| CN203667841U (en) * | 2013-12-12 | 2014-06-25 | 唐山学院 | Twin-beam gantry crane with bispin and self-defense structure |
-
2013
- 2013-12-12 CN CN201310682802.0A patent/CN103803424B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060243724A1 (en) * | 2003-07-30 | 2006-11-02 | Jianguo Shan | Container lifter being able to lift two 40 feet containers |
| CN201190085Y (en) * | 2008-04-16 | 2009-02-04 | 张晓明 | Bridge crane cart |
| US20100000955A1 (en) * | 2008-07-04 | 2010-01-07 | Hitachi Plant Technologies, Ltd. | Girder block lifting method and jack-up stage used therefor |
| CN201647885U (en) * | 2010-04-22 | 2010-11-24 | 重庆宝井钢材加工配送有限公司 | Trolly steel wire rope winding structure of double-beam bridge type traveling crane |
| CN201961971U (en) * | 2011-02-28 | 2011-09-07 | 天津起重设备有限公司 | Large-tonnage dual-beam crane trolley |
| CN201942435U (en) * | 2011-03-07 | 2011-08-24 | 河南省盛华重型起重机有限公司 | Special trolley for double-beam gantry crane |
| CN201952103U (en) * | 2011-03-11 | 2011-08-31 | 中铁二十五局集团建筑安装工程有限公司 | Steel-bar lifting frame |
| CN202046816U (en) * | 2011-03-22 | 2011-11-23 | 大连大起产业开发有限公司 | Portal crane with double beams and electric hoists |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104150370A (en) * | 2014-06-04 | 2014-11-19 | 国家电网公司 | Frame type lifting device |
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| Publication number | Publication date |
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| CN103803424B (en) | 2017-01-18 |
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