CN103496643B - Cantilever tower crane and lightning protection system for same - Google Patents
Cantilever tower crane and lightning protection system for same Download PDFInfo
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- CN103496643B CN103496643B CN201310481268.7A CN201310481268A CN103496643B CN 103496643 B CN103496643 B CN 103496643B CN 201310481268 A CN201310481268 A CN 201310481268A CN 103496643 B CN103496643 B CN 103496643B
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- discharging rod
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Abstract
The invention relates to a cantilever tower crane and a lightning protection system for the same. The lightning protection system comprises a lightning protection system mounting frame, a lightning rod supporting seat and a lightning rod component, the lightning rod supporting seat has a pivoting center, an upper section and a lower section, the upper section and the lower section are positioned on two sides of the pivoting center respectively, the lightning rod supporting seat is rotatably connected to the lightning protection system mounting frame through the pivoting center in a vertical plane, the lightning rod component is arranged on the end portion of the upper section, the overall center of gravity of the lightning rod component and the lightning rod supporting seat is positioned in the lower section, and the lightning rod component is enabled to constantly extend upwards along the vertical direction. According to the scheme, the lightning rod supporting seat is rotatably connected to the lightning protection system mounting frame in the vertical plane, and the overall center of gravity of the lightning rod component and the lightning rod supporting seat is positioned in the lower section, so that no matter how working position of a lifting arm is changed, the lightning rod component can be ensured to constantly extend upwards along the vertical direction.
Description
Technical field
The present invention relates to engineering machinery field, particularly relate to the lightning protection system for movable arm tower crane and movable arm tower crane.
Background technology
At present, movable arm tower crane, owing to putting ability to good use in the space of its excellence, has a large amount of application in the place of the building dense of such as country in Southeast Asia and so on, but the climatic conditions of many thunderstorms require that movable arm tower crane must have lightning-protecting engineering measure really up to the mark.Due to the forced stroke that movable arm tower crane arm is special, when it significantly works, arm cusp height is considerably beyond the height on A cabinet frame top, and position during its work is in constantly change, traditional hard-wired discharging rod assembly cannot adapt to this change in location, cannot meet the lightning-arrest requirement of movable arm tower crane and arm thereof.Therefore, be necessary that the above-mentioned defect for existing in prior art is improved.
Summary of the invention
Main purpose of the present invention is to provide a kind of lightning protection system for movable arm tower crane and movable arm tower crane, and described lightning protection system can ensure that discharging rod assembly vertically upwards extends all the time, for movable arm tower crane provides actv. lightning measure.
To achieve these goals, according to a first aspect of the invention, provide a kind of lightning protection system for movable arm tower crane, comprise lightning protection system erecting frame, discharging rod supporting base and discharging rod assembly, discharging rod supporting base has pivoting centre and lays respectively at epimere and the hypomere on pivoting centre both sides, discharging rod supporting base is rotationally attached to lightning protection system erecting frame by pivoting centre in perpendicular, discharging rod assembly is arranged on the end of epimere, the overall center of gravity of discharging rod assembly and discharging rod supporting base is positioned at hypomere, discharging rod assembly is vertically upwards extended all the time.
Further, the end of epimere has the discharging rod mount pad for installing discharging rod assembly.
Further, the end of hypomere has the counterweight of the overall center of gravity for regulating discharging rod assembly and discharging rod supporting base.
Further, lightning protection system erecting frame comprises the erecting frame body of the arm being connected to movable arm tower crane and the erecting frame pedestal for installing discharging rod supporting base.
Further, erecting frame body comprises four strut bars, two back plates, four pipe links and four arm ear seats, four strut bars are connected to arm respectively by four arm ear seats, four pipe links connect two adjacent strut bars respectively, and two back plates connect two adjacent strut bars respectively.
Further, erecting frame pedestal comprises two lightning-arrest assembly ear seats, four gussets and two base plates, two base plates are connected with four strut bars respectively, two lightning-arrest assembly ear seats are connected to two base plates respectively, four gussets connect corresponding lightning-arrest assembly ear seat and base plate respectively, and lightning-arrest assembly ear seat is provided with mounting hole; Arm has quadrangular section.
Further, erecting frame body comprises two strut bars, back plate, pipe link and two U-shaped adapter plates, and two strut bars are connected to arm respectively by two U-shaped adapter plates, and pipe link connects two strut bars, and back plate connects two strut bars.
Further, erecting frame pedestal comprises lightning-arrest assembly ear seat, two gussets and base plate, and base plate is connected with two strut bars, and lightning-arrest assembly ear seat is connected to base plate, and two gussets connect lightning-arrest assembly ear seat and base plate respectively, and lightning-arrest assembly ear seat is provided with mounting hole; Arm has triangular-section.
Further, erecting frame pedestal comprises lightning-arrest assembly ear seat, two gussets and base plate, and base plate is connected with two strut bars, and lightning-arrest assembly ear seat is connected to base plate, and two gussets connect lightning-arrest assembly ear seat and base plate respectively, and lightning-arrest assembly ear seat is provided with mounting hole; Arm has quadrangular section.
According to a second aspect of the invention, provide a kind of movable arm tower crane, comprise lightning protection system, the lightning protection system for movable arm tower crane of this lightning protection system any one of aforementioned first aspect.
According to technical scheme of the present invention, because discharging rod supporting base is rotationally attached to lightning protection system erecting frame in perpendicular, and the overall center of gravity of discharging rod supporting base and discharging rod assembly is positioned at the hypomere of discharging rod supporting base, therefore no matter how the control position of the arm of movable arm tower crane changes, and can both ensure that lightning-arrest assembly vertically upwards extends all the time.
Accompanying drawing explanation
Figure of description is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the front view of the lightning protection system erecting frame according to the embodiment of the present invention one;
Fig. 2 is the birds-eye view of the lightning protection system erecting frame according to the embodiment of the present invention one;
Fig. 3 is the structural representation of the discharging rod supporting base according to the embodiment of the present invention one;
Fig. 4 is the scheme of installation of the lightning protection system according to the embodiment of the present invention one;
Fig. 5 is the result of use figure of the lightning protection system according to the embodiment of the present invention one;
Fig. 6 is the structural representation of the movable arm tower crane according to the embodiment of the present invention one;
Fig. 7 is the front view of the lightning protection system erecting frame according to the embodiment of the present invention two;
Fig. 8 is the A direction view in Fig. 7.
Detailed description of the invention
It should be noted that, when not clearly limit or when not conflicting, the feature in each embodiment of the present invention can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
In order to provide actv. lightning protection measures to movable arm tower crane, the invention provides a kind of lightning protection system for movable arm tower crane, this lightning protection system comprises lightning protection system erecting frame, discharging rod supporting base and discharging rod assembly.
Fig. 1 is the front view of the lightning protection system erecting frame according to the embodiment of the present invention one, and Fig. 2 is the birds-eye view of structure described in Fig. 1.As illustrated in fig. 1 and 2, lightning protection system erecting frame comprises superposed erecting frame pedestal and is positioned at erecting frame body two parts of bottom.
Wherein, erecting frame pedestal comprises two lightning-arrest assembly ear seats, 11, four gussets 12 and two base plates 13.Each lightning-arrest assembly ear seat 11 is equipped with mounting hole, and their position is mutually corresponding.Two lightning-arrest assembly ear seats 11 are separately positioned on two base plates 13.Four gussets 12 connect corresponding base plate 13 and lightning-arrest assembly ear seat 11 respectively.
Erecting frame body comprises two back plates, 14, four strut bars, 15, four pipe links 16 and four arm ear seats 17.The upper end of four strut bars 15 is connected with corresponding base plate 13 respectively.Two back plates 14 connect two adjacent strut bars 15 respectively.Four pipe links 16 connect two adjacent strut bars 15 respectively.
Erecting frame body can be used for whole lightning protection system erecting frame to be arranged on the arm of movable arm tower crane, and for supporting erecting frame pedestal.As shown in Figure 2, in fact erecting frame pedestal divide into identical two parts spaced apart from each other, thus discharging rod supporting base can arrange thereon and rotate in perpendicular between the two sections, and can not and lightning protection system erecting frame between interfere.
See Fig. 3, discharging rod supporting base 20 is shaft-like, and correct position thereon offers connecting bore 201, i.e. pivoting centre, thus, discharging rod supporting base 20 with connecting bore 201 for boundary is divided into epimere and hypomere.Connecting bore 201 can be positioned at the centre of discharging rod supporting base 20, also can be in other position.Discharging rod mount pad 21 is arranged on the end of the epimere of discharging rod supporting base 20, for installing discharging rod assembly.Counterweight 23 is arranged on the end of the hypomere of discharging rod supporting base 20, and the center of gravity of the entirety formed for regulating discharging rod supporting base and discharging rod assembly, makes this center of gravity be positioned at hypomere.
Fig. 4 shows the installation process of lightning protection system each several part, composition graphs 1-3, first, is installed on discharging rod mount pad 21 by multiple first bearing pin 32 by discharging rod assembly 31; Then, discharging rod supporting base, through the connecting bore 201 of discharging rod supporting base 20 and the mounting hole of each lightning-arrest assembly ear seat 11, is movably connected on lightning protection system erecting frame by the second bearing pin 33; Finally, lightning protection system erecting frame is assemblied on the arm of movable arm tower crane by multiple 3rd bearing pin 34.
As shown in Figure 5, in lightning protection system after installation, because discharging rod supporting base is rotationally attached to lightning protection system erecting frame 10 in perpendicular, and the overall center of gravity of discharging rod supporting base and discharging rod assembly is positioned at the hypomere of discharging rod supporting base 20, therefore no matter how the control position of the arm 41 of movable arm tower crane changes, and can both ensure that lightning-arrest assembly 31 vertically upwards extends all the time.
See Fig. 6, in the course of the work, the control position of arm 41 can produce larger change to movable arm tower crane, but according to the structure of aforementioned lightning protection system, the discharging rod assembly on lightning protection system erecting frame 10 can remain attitude straight up.If be arranged on by this lightning protection system on the arm point of arm 41, then discharging rod assembly can be in the extreme higher position of the arm 41 of movable arm tower crane all the time, thus provides actv. lightning protection measures for movable arm tower crane.
In previous embodiment one, lightning protection system erecting frame 10 has four arm ear seats 17, is suitable for being arranged on having on the arm of quadrangular section, and namely every two arm ear seats are arranged on two main chords at top.
Present invention also offers embodiment two, difference is, lightning protection system erecting frame only comprises a lightning-arrest assembly ear seat 51, two gussets 52 and a base plate 53 and a back plate 54, two strut bars 55, pipe link 56 and two arm ear seats 57, be actually a wherein part for structure described in embodiment one, this structure is suitable for being arranged on and has on the arm of triangular-section.
Fig. 7 is the front view of the lightning protection system erecting frame according to the embodiment of the present invention two, Fig. 8 is the A direction view in Fig. 7, the arm with triangular-section only has a main chord at top, in order to by mounted thereto for the lightning protection system erecting frame of embodiment two, have employed U-shaped adapter plate 18, it matches with the main chord 42 of arm, thus achieves the stable installation between lightning protection system erecting frame and arm.
Certainly, described in embodiment two, lightning protection system is also applicable to the arm with quadrangular section, and now, this lightning protection system can be arranged on any main chord at arm top.
Describe the lightning protection system for movable arm tower crane of the present invention according to embodiment above, but this lightning protection system being used for movable arm tower crane is not limited in the parts described in this embodiment and/or annexation.
Such as, between discharging rod supporting base and discharging rod erecting frame except adopting a bearing pin to realize and being flexibly connected, other movable connection methods such as bearing fit structure can also be adopted, as long as discharging rod supporting base can rotate freely in perpendicular relative to discharging rod erecting frame, the object of the present invention can be realized.
In addition, except adopting counterweight, also other structure or arrangement form can be adopted, so that the overall center of gravity of discharging rod supporting base and discharging rod assembly is positioned at the hypomere of discharging rod supporting base.
Present invention also offers a kind of movable arm tower crane, comprise lightning protection system, this lightning protection system can for the lightning protection system described in previous embodiment and modification thereof.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the lightning protection system for movable arm tower crane, comprise lightning protection system erecting frame, discharging rod supporting base and discharging rod assembly, it is characterized in that, described discharging rod supporting base has pivoting centre and lays respectively at epimere and the hypomere on described pivoting centre both sides, described discharging rod supporting base is rotationally attached to described lightning protection system erecting frame by described pivoting centre in perpendicular, described discharging rod assembly is arranged on the end of described epimere, the overall center of gravity of described discharging rod assembly and described discharging rod supporting base is positioned at described hypomere, described discharging rod assembly is vertically upwards extended all the time.
2. the lightning protection system for movable arm tower crane according to claim 1, is characterized in that, the end of described epimere has the discharging rod mount pad for installing described discharging rod assembly.
3. the lightning protection system for movable arm tower crane according to claim 2, is characterized in that, the end of described hypomere has the counterweight of the overall center of gravity for regulating described discharging rod assembly and described discharging rod supporting base.
4. the lightning protection system for movable arm tower crane according to claim 3, is characterized in that, described lightning protection system erecting frame comprises the erecting frame body of the arm being connected to described movable arm tower crane and the erecting frame pedestal for installing described discharging rod supporting base.
5. the lightning protection system for movable arm tower crane according to claim 4, it is characterized in that, described erecting frame body comprises four strut bars, two back plates, four pipe links and four arm ear seats, described four strut bars are connected to described arm respectively by described four arm ear seats, pipe link described in every root connects two adjacent described strut bars, and each described back plate connects two adjacent described strut bars.
6. the lightning protection system for movable arm tower crane according to claim 5, it is characterized in that, described erecting frame pedestal comprises two lightning-arrest assembly ear seats, four gussets and two base plates, described two base plates are connected with described four strut bars respectively, described two lightning-arrest assembly ear seats are connected to described two base plates respectively, described four gussets connect corresponding described lightning-arrest assembly ear seat and described base plate respectively, and described lightning-arrest assembly ear seat is provided with mounting hole; Described arm has quadrangular section.
7. the lightning protection system for movable arm tower crane according to claim 4, it is characterized in that, described erecting frame body comprises two strut bars, back plate, pipe link and two U-shaped adapter plates, described two strut bars are connected to described arm respectively by described two U-shaped adapter plates, described pipe link connects described two strut bars, and described back plate connects described two strut bars.
8. the lightning protection system for movable arm tower crane according to claim 7, it is characterized in that, described erecting frame pedestal comprises lightning-arrest assembly ear seat, two gussets and base plate, described base plate is connected with described two strut bars, described lightning-arrest assembly ear seat is connected to described base plate, described two gussets connect described lightning-arrest assembly ear seat and described base plate respectively, and described lightning-arrest assembly ear seat is provided with mounting hole; Described arm has triangular-section.
9. the lightning protection system for movable arm tower crane according to claim 7, it is characterized in that, described erecting frame pedestal comprises lightning-arrest assembly ear seat, two gussets and base plate, described base plate is connected with described two strut bars, described lightning-arrest assembly ear seat is connected to described base plate, described two gussets connect described lightning-arrest assembly ear seat and described base plate respectively, and described lightning-arrest assembly ear seat is provided with mounting hole; Described arm has quadrangular section.
10. a movable arm tower crane, comprises lightning protection system, it is characterized in that, the lightning protection system for movable arm tower crane of described lightning protection system according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310481268.7A CN103496643B (en) | 2013-10-15 | 2013-10-15 | Cantilever tower crane and lightning protection system for same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310481268.7A CN103496643B (en) | 2013-10-15 | 2013-10-15 | Cantilever tower crane and lightning protection system for same |
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| Publication Number | Publication Date |
|---|---|
| CN103496643A CN103496643A (en) | 2014-01-08 |
| CN103496643B true CN103496643B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310481268.7A Active CN103496643B (en) | 2013-10-15 | 2013-10-15 | Cantilever tower crane and lightning protection system for same |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105129638B (en) * | 2015-08-24 | 2017-04-26 | 徐工集团工程机械股份有限公司 | Lightning arrester mounting bracket for crawler crane |
| CN107039887A (en) * | 2017-04-25 | 2017-08-11 | 四川诺特科技有限公司 | What horizontal plane was used exempts to install lightning protection tower structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20050080713A (en) * | 2004-02-10 | 2005-08-17 | 조성우 | How to prevent reverse flashover of transmission pylon |
| CN201247910Y (en) * | 2008-08-29 | 2009-05-27 | 四川协合科技有限公司 | Flow-distribution type degaussing arc-extinguishing lightning rod |
| US8849505B2 (en) * | 2009-11-19 | 2014-09-30 | Continental Automotive Systems, Inc. | Protecting a vehicle from environmental events |
| CN202265348U (en) * | 2011-08-17 | 2012-06-06 | 栾清杨 | Tower crane with lightning arrester |
| CN202513538U (en) * | 2012-04-20 | 2012-10-31 | 温州欧特莱科技有限公司 | Vertical-axis type wind driven generator and lightning protection system thereof |
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