CN103552940A - Propeller strut and dynamic compaction machine with propeller strut - Google Patents
Propeller strut and dynamic compaction machine with propeller strut Download PDFInfo
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- CN103552940A CN103552940A CN201310566976.0A CN201310566976A CN103552940A CN 103552940 A CN103552940 A CN 103552940A CN 201310566976 A CN201310566976 A CN 201310566976A CN 103552940 A CN103552940 A CN 103552940A
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Abstract
The invention discloses a propeller strut. The propeller strut comprises a rotary table, a main beam and a pull plate, wherein an upper hinging point hole of the main beam is hinged with an upper hinging point hole of the pull plate; a lower hinging point hole of the main beam is hinged with a front hinging point hole of the rotary table; a lower hinging point hole of the pull rod is detachably hinged with a rear hinging point hole of the rotary table; the pull plate is in an integrated structure and a hinging point hole is formed in the middle of the pull plate; the rotary table is provided with a transportation hinging point hole hinged with the hinging point hole. At the working state, a triangular bracket is formed by the rotary table, the main beam and the pull plate; the pull pate is in the integrated structure so that a connection device is omitted; when the propeller strut works, the pull plate does not generate vibration and the stability of the whole propeller strut is improved; at the conveying state, the lower hinging point hole of the pull plate and the rear hinging point hole of the rotary table are detached, the main beam is rotated backwards around the front hinging point hole of the rotary table under the assistance of a crane; the lower end of the pull plate moves forwards and the upper end moves downwards, and after falling in place, the hinging point hole of the pull plate is connected with the transportation hinging point hole to fold the propeller strut; the propeller strut can be folded and has good stability.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of Shears.The invention still further relates to a kind of dynamic compaction machinery with above-mentioned Shears.
Background technology
During dynamic compaction machinery work, hammer ram is risen to certain height, then put down, hammer ram is done the movement of falling object under the effect of self gravitation, beats ground.
Dynamic compaction machinery comprises hammer ram, steel rope, luffing assembly pulley, jib, Shears and turntable, jib and Shears are all arranged on turntable, the fixed pulley of luffing assembly pulley is arranged on Shears conventionally, during dynamic compaction machinery work, luffing assembly pulley draws high operating angle by jib, and keeps motionless, and the head that steel rope rises to jib by hammer ram puts down, and then promote and to put down again, hammering ground repeatedly.Shears be mainly used to install luffing assembly pulley fixed pulley, auxiliary draw high jib and luffing power reached to turntable.
Please refer to Fig. 1 to Fig. 4, the structural representation that Fig. 1 is a kind of typical Shears; Fig. 2 is the folded state schematic diagram of the Shears shown in Fig. 1; Fig. 3 is the structural representation of single arm-tie end of the Shears shown in Fig. 1; Fig. 4 is the structural representation of two arm-ties of the Shears shown in Fig. 1.
Shears comprises turntable 1', girder 2' and arm-tie 3', and the upper end of the upper end of girder 2' and arm-tie 3' is hinged, and the front hinge hole of the lower end of girder 2' and turntable 1' is hinged, and the rear hinge hole of the lower end of arm-tie 3' and turntable 1' is hinged.The middle part of girder 2' has transportation hinge hole 21', arm-tie 3' is formed by connecting by two bearing pins by single arm-tie 31' and two arm-tie 32', the lower end of single arm-tie 31' has hinge hole 311' and slotted hole 312', two arm-tie 32' have hinge hole, three of upper, middle and lower, upper end and the girder 2' of single arm-tie 31' are hinged, and lower hinge hole 323' and the turntable 1' of two arm-tie 32' are hinged.
During mode of operation, the first bearing pin connects the hinge hole 311' of single arm-tie 21' and the middle hinge hole 322' of two arm-tie 32', and the second bearing pin connects the slotted hole 312' of single arm-tie 21' and the upper hinge hole 321' of two arm-tie 32'.
During travelling position, can Shears is folding, pull down the second bearing pin, Shears falls backward under crane auxiliary, in this process, two arm-tie 32' rotate forward at the rotate rear hinge hole of platform 1', and the lower end of single arm-tie 31' forward, upper end moves down, and after falling to putting in place, with the second bearing pin, connects the hinge hole 311' of single arm-tie 31' and the transportation hinge hole 21' of girder 2'.
Between single arm-tie 21' of this Shears and two arm-tie 22', by two bearing pins, be connected, while making Shears transportation, can fold, but bearing pin junction exists gap, rocking of producing during dynamic compaction machinery work is larger, the gap of junction will make Shears produce vibration, the shaking amplitude that increases Shears, has affected the stability of Shears, and then has affected the stability of jib, on the stability of dynamic compaction machinery, also can produce certain impact, have potential safety hazard.
Therefore, how improving the stability of Shears, is that those skilled in the art are badly in need of the technical matters solving at present.
Summary of the invention
The object of this invention is to provide a kind of Shears, this Shears can either fold and have good stability.Another object of the present invention is to provide a kind of dynamic compaction machinery with above-mentioned Shears.
In order to realize above-mentioned technical purpose, the invention provides a kind of Shears, comprise turntable, girder and arm-tie, the upper hinge hole of the upper hinge hole of described girder and described arm-tie is hinged, the front hinge hole of the lower hinge hole of described girder and described turntable is hinged, and the rear hinge hole of the lower hinge hole of described arm-tie and described turntable is detachably hinged, and described arm-tie is integral structure, the middle part of described arm-tie is provided with hinge hole, and described turntable has transportation hinge hole that can be hinged with described hinge hole.
Preferably, between the described front hinge hole of described turntable and described rear hinge hole, be provided with slideway, the lower end of described arm-tie is provided with pulley, and described pulley can slide along described slideway.
Preferably, described rear hinge hole and described transportation hinge hole are set up in parallel.
Preferably, described rear hinge hole and described transportation hinge hole are same hole.
Preferably, the lower end of described arm-tie is provided with two the first adapter plates arranged side by side, and described the first adapter plate has through hole, the described lower hinge hole that described through hole is described arm-tie, described pulley is arranged between two described the first adapter plates, and is positioned at the upside of described through hole.
Preferably, the middle part of described arm-tie is provided with two the second adapter plates arranged side by side, and described hinge hole is located on described the second adapter plate.
Preferably, the upper end of described arm-tie is provided with two the 3rd adapter plates arranged side by side, and the described upper hinge hole of described arm-tie is located on described the 3rd adapter plate.
Preferably, two described the first adapter plates, two described the second adapter plates and/or two described the 3rd adapter plates are provided with brace panel.
Preferably, at least two described arm-ties of distribution on the Width of described girder.
The present invention also provides a kind of dynamic compaction machinery, comprise luffing assembly pulley, jib and Shears, the fixed pulley of described luffing assembly pulley is arranged on described Shears, and described luffing assembly pulley can change the angle of described jib, and described Shears is the Shears described in above-mentioned any one.
Shears provided by the invention, comprise turntable, girder and arm-tie, the upper hinge hole of the upper hinge hole of girder and arm-tie is hinged, the front hinge hole of the lower hinge hole of girder and turntable is hinged, the rear hinge hole of the lower hinge hole of arm-tie and turntable is detachably hinged, arm-tie is integral structure, and the middle part of arm-tie is provided with hinge hole, and turntable has transportation hinge hole that can be hinged with hinge hole.
During Shears mode of operation, turntable, girder and arm-tie form leg-of-mutton support, because arm-tie is integral structure, have reduced connection location, and during Shears work, arm-tie can not produce vibration, has improved the stability of whole Shears; During travelling position, take the lower hinge hole of arm-tie and the rear hinge hole of turntable apart, under crane auxiliary, the rotate front hinge hole of platform of girder rotates backward, and the lower end of arm-tie forward, upper end moves down, after falling to putting in place, connect hinge hole and the transportation hinge hole of arm-tie, can this Shears is folding.Compared with prior art, this Shears can either fold and have good stability.
Concrete, between the front hinge hole of turntable and rear hinge hole, being provided with slideway, the lower end of arm-tie is provided with pulley, and pulley can slide along slideway.During folder's cabinet frame, the pulley of arm-tie lower end is along slideway to front slide, and slideway has certain supporting role to the Shears in folding process, can make whole folding process more steady.
Preferably, rear hinge hole can be same hole with transportation hinge hole, or, also can, according to the concrete structure of Shears, rear hinge hole and transportation hinge hole be set up in parallel.
Concrete, the lower end of arm-tie is provided with two the first adapter plates arranged side by side, the described lower hinge hole that the through hole on the first adapter plate is arm-tie, and pulley is arranged between two the first adapter plates, and is positioned at through hole upside; The middle part of arm-tie is provided with two the second adapter plates arranged side by side, and hinge hole is located on the second adapter plate; The upper end of arm-tie is provided with two the 3rd adapter plates arranged side by side, and the upper hinge hole of arm-tie is located on the 3rd adapter plate; Two the first adapter plates, two the second adapter plates and/or two the 3rd adapter plates are provided with brace panel.
In above-mentioned each mode, at least two arm-ties that distribute on the Width of girder, the quantity of arm-tie can be according to the width setting of girder.
The present invention also provides a kind of dynamic compaction machinery, comprises luffing assembly pulley, jib and Shears, and the fixed pulley of luffing assembly pulley is arranged on Shears, and luffing assembly pulley can change the angle of jib, and Shears is the Shears described in above-mentioned any one.
Because Shears can either fold and have good stability, the dynamic compaction machinery with this Shears also has good stability and reliability.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of typical Shears;
Fig. 2 is the folded state schematic diagram of the Shears shown in Fig. 1;
Fig. 3 is the structural representation of single arm-tie end of the Shears shown in Fig. 1;
Fig. 4 is the structural representation of two arm-ties of the Shears shown in Fig. 1;
Fig. 5 is the structural representation of a kind of specific embodiment of Shears provided by the present invention;
Fig. 6 is the folded state schematic diagram of the Shears shown in Fig. 5;
Fig. 7 is the girder of the Shears shown in Fig. 5 and the structural representation of arm-tie;
Fig. 8 is the structural representation of the turntable of the Shears shown in Fig. 5;
Fig. 9 is the structural representation of the arm-tie of the Shears shown in Fig. 5;
Figure 10 is the birds-eye view of the arm-tie shown in Fig. 9.
Wherein, between the component names in Fig. 1 to Fig. 4 and Reference numeral, relation is as follows one to one:
Turntable 1'; Girder 2'; Transportation hinge hole 21'; Arm-tie 3'; Single arm-tie 31'; Hinge hole 311'; Slotted hole 312'; Two arm-tie 32'; Upper hinge hole 321'; Middle hinge hole 322'; Lower hinge hole 323';
Between component names in Fig. 5 to Figure 10 and Reference numeral, relation is as follows one to one:
The specific embodiment
Core of the present invention is to provide a kind of Shears, and this Shears can either fold and have good stability.Another core of the present invention is to provide a kind of dynamic compaction machinery with above-mentioned Shears.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 5 to Fig. 8, Fig. 5 is the structural representation of a kind of specific embodiment of Shears provided by the present invention, Fig. 6 is the folded state schematic diagram of the Shears shown in Fig. 5, Fig. 7 is the girder of the Shears shown in Fig. 5 and the structural representation of arm-tie, and Fig. 8 is the structural representation of the turntable of the Shears shown in Fig. 5.
In a kind of concrete embodiment, the invention provides a kind of Shears, comprise turntable 1, girder 2 and arm-tie 3, the upper hinge hole of the upper hinge hole of girder 2 and arm-tie 3 is hinged, the front hinge hole 11 of the lower hinge hole of girder 2 and turntable 1 is hinged, and the rear hinge hole 12 of the lower hinge hole of arm-tie 3 and turntable 1 is detachably hinged, and arm-tie 3 is integral structure, the middle part of arm-tie 3 is provided with hinge hole 31, and turntable 1 has transportation hinge hole 13 that can be hinged with hinge hole 31.
During Shears mode of operation, as shown in Figure 5, the upper hinge hole of the upper hinge hole of girder 2 and arm-tie 3 is hinged, the front hinge hole 11 of the lower hinge hole of girder 2 and turntable 1 is hinged, the rear hinge hole 12 of the lower hinge hole of arm-tie 3 and turntable 1 is hinged, turntable 1, girder 2 and arm-tie 3 form leg-of-mutton support, and triangle is more stable, can in construction machinery and equipment, play good supporting role.The arm-tie 3 of this Shears is integral structure, has reduced the connection location in Shears structure, and during Shears work, arm-tie 3 can not produce vibration, has improved the stability of whole Shears.
During travelling position, as shown in Figure 6, take the lower hinge hole of arm-tie 3 and the rear hinge hole 12 of turntable 1 apart, Shears falls backward under crane auxiliary, in this process, the rotate front hinge hole 11 of platform 1 of girder 2 rotates backward, the lower end of arm-tie 3 moves forward, upper end moves down, after falling to putting in place, the hinge hole 31 of arm-tie 3 and transportation hinge hole 13 can coordinate, connect the hinge hole 31 of arm-tie 3 and the transportation hinge hole 13 of turntable 1, the Shears after folding is fixed on turntable 1, can guarantee the stability of Shears in transportation.
While needing end user's cabinet frame, take hinge hole 31 and transportation hinge hole 13 apart, Shears hoists under crane auxiliary, rise in lift, rotate forward in the rotate front hinge hole 11 of platform 1 of girder 2, and move backward the lower end of arm-tie 3, upper end moves up, after hoisting and putting in place, connect the lower hinge hole of arm-tie 3 and the rear hinge hole 12 of turntable 1, Shears is positioned at mode of operation.
Compared with prior art, this Shears has reduced connection location, and the vibration producing in working process is less, has good stability, and meanwhile, this Shears can also fold, and has reduced transport difficulty.
In this Shears, each articulated position all can realize by bearing pin 37 hinged, can, at the end of bearing pin 37 construction opening pin, guarantee the stability of installing.
Concrete, between the front hinge hole 11 of turntable 1 and rear hinge hole 12, being provided with slideway 14, the lower end of arm-tie 3 is provided with pulley 4, and pulley 4 can slide along slideway 14.
When folding and hoisting Shears, the pulley 4 of arm-tie 3 lower ends all can slide along slideway 14, and 14 pairs of folding processes of slideway and the Shears hoisting in process have certain supporting role, can make folding process all more steady with the process that hoists; Pulley 4 friction force producing that slides on slideway 14 is cliding friction, and friction force is less, can prevent arm-tie 3 lower ends and turntable 1 friction, protects the lower end of arm-tie 3.
Further in concrete embodiment, Upper-lower Limit position can be set on slideway 14, be used for limiting the end position that pulley 4 slides on slideway 14, when pulley 4 is positioned at limes superiors position, can connect the lower hinge hole of arm-tie 3 and the rear hinge hole 12 of turntable 1; When pulley 4 is positioned at smallest limit position, can connect the hinge hole 31 of arm-tie 3 and the transportation hinge hole 13 of turntable 1.
In a kind of preferred mode, the rear hinge hole 12 on turntable 1 can be set up in parallel with transportation hinge hole 13, as shown in Figure 8.
The location positioning in 3 times hinge holes of arm-tie during according to mode of operation, the position in rear hinge hole 12, the location positioning of position hinge hole 31 of arm-tie 3 during according to travelling position in transportation hinge hole 13, the particular location of the two also with the structure of turntable 1, the shape of slideway 14 is relevant.The two can be set up in parallel, also can be according to the concrete shape setting of Shears in place.
In another preferred embodiment, the rear hinge hole 12 on turntable 1 can be same hole with transportation hinge hole 13.During mode of operation, this hole can be hinged with the lower hinge hole of arm-tie 3, and during travelling position, this hole can be hinged with the hinge hole 31 of arm-tie 3.
Please refer to Fig. 9 and Figure 10, Fig. 9 is the structural representation of the arm-tie of the Shears shown in Fig. 5, and Figure 10 is the birds-eye view of the arm-tie shown in Fig. 9
In another kind of concrete embodiment, the lower end of arm-tie 3 is provided with two the first adapter plates 32 arranged side by side, the first adapter plate 32 has through hole 33, through hole 33 is the lower hinge hole of arm-tie 3, pulley 4 is arranged between two the first adapter plates 32, and being positioned at the upside of through hole 33, concrete structure is as shown in Figure 9 and Figure 10.
When Shears need to be folded, pull down bearing pin 37, pulley 4 directly drops on slideway 14 under the effect of gravity, can on slideway 14, slide, in sliding process, two the first adapter plates 32 are positioned at the both sides of side plate all the time, can limit pulley 4, in anti-limited slip wheel 4 active procedures, depart from slideway 14.
Concrete, the middle part of arm-tie 3 is provided with two the second adapter plates 34 arranged side by side, and hinge hole 31 is located on the second adapter plate 34.When Shears is folding put in place after, two the second adapter plates 34 also lay respectively at the both sides of side plate, hinge hole 31 with transport hinge hole 13 and just can be connected by bearing pin 37.
Further, the upper end of arm-tie 3 is provided with two the 3rd adapter plates 35 arranged side by side, and the upper hinge hole of arm-tie 3 is located on the 3rd adapter plate 35.Arm-tie 3 is hinged by the upper hinge hole on the 3rd adapter plate 35 with girder 2.
In further preferred embodiment, two the first adapter plates 32, two the second adapter plates 34 and/or two the 3rd adapter plates 35 are provided with brace panel 36.
In order to strengthen each stability to adapter plate on arm-tie 3, can to adapter plate, brace panel 36 be set for each.The first adapter plate 32 and the 3rd adapter plate 35 are positioned at the two ends of arm-tie 3, the brace panel 36 of the two can be the form of floor, the form of the brace panel 36 of the second adapter plate 34 can be structure as shown in figure 10, and brace panel 36 is directly connected with two the second adapter plates 34.
Certainly, the upper hinge hole at arm-tie 3 two ends and lower hinge hole also can arrange in other way, and the pulley 4 of arm-tie 3 lower ends also can arrange by other mounting means.
In the respective embodiments described above, at least two arm-ties 3 that distribute on the Width of girder 2, concrete, the quantity of arm-tie 3 can be according to the width setting of girder 2, and in accompanying drawing, the quantity of the arm-tie 3 of Shears is two.
Except above-mentioned Shears, the present invention also provides a kind of dynamic compaction machinery, comprise luffing assembly pulley, jib and Shears, the fixed pulley of luffing assembly pulley is arranged on Shears, luffing assembly pulley can change the angle of jib, described Shears is above-mentioned Shears, and other structures of this dynamic compaction machinery please refer to prior art, repeat no more herein.
Because Shears can either fold and have good stability, the dynamic compaction machinery with this Shears also has good stability and reliability.
Obviously, the application of this Shears is not limited to dynamic compaction machinery, can also be applied in other construction machinery and equipment, can either improve equally stability and the reliability of construction machinery and equipment.
Above Shears provided by the present invention and the dynamic compaction machinery with this Shears are described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a Shears, comprise turntable (1), girder (2) and arm-tie (3), the upper hinge hole of the upper hinge hole of described girder (2) and described arm-tie (3) is hinged, the front hinge hole (11) of the lower hinge hole of described girder (2) and described turntable (1) is hinged, the rear hinge hole (12) of the lower hinge hole of described arm-tie (3) and described turntable (1) is detachably hinged, it is characterized in that, described arm-tie (3) is integral structure, the middle part of described arm-tie (3) is provided with hinge hole (31), described turntable (1) has transportation hinge hole (13) that can be hinged with described hinge hole (31).
2. Shears as claimed in claim 1, it is characterized in that, between the described front hinge hole (11) of described turntable (1) and described rear hinge hole (12), be provided with slideway (14), the lower end of described arm-tie (3) is provided with pulley (4), and described pulley (4) can slide along described slideway (14).
3. Shears as claimed in claim 2, is characterized in that, described rear hinge hole (12) is set up in parallel with described transportation hinge hole (13).
4. Shears as claimed in claim 2, is characterized in that, described rear hinge hole (12) is same hole with described transportation hinge hole (13).
5. the Shears as described in claim 2 to 4 any one, it is characterized in that, the lower end of described arm-tie (3) is provided with two the first adapter plates (32) arranged side by side, and described the first adapter plate (32) has through hole (33), and described through hole (33) is the described lower hinge hole of described arm-tie (3); Described pulley (4) is arranged between two described the first adapter plates (32), and is positioned at the upside of described through hole (33).
6. Shears as claimed in claim 5, is characterized in that, the middle part of described arm-tie (3) is provided with two the second adapter plates (34) arranged side by side, and described hinge hole (31) is located on described the second adapter plate (34).
7. Shears as claimed in claim 6, is characterized in that, the upper end of described arm-tie (3) is provided with two the 3rd adapter plates (35) arranged side by side, and the described upper hinge hole of described arm-tie (3) is located on described the 3rd adapter plate (35).
8. Shears as claimed in claim 7, is characterized in that, two described the first adapter plates (32), two described the second adapter plates (34) and/or two described the 3rd adapter plates (35) are provided with brace panel (36).
9. Shears as claimed in claim 8, is characterized in that, at least two described arm-ties (3) distribute on the Width of described girder (2).
10. a dynamic compaction machinery, comprise luffing assembly pulley, jib and Shears, the fixed pulley of described luffing assembly pulley is arranged on described Shears, and described luffing assembly pulley can change the angle of described jib, it is characterized in that, described Shears is the Shears described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310566976.0A CN103552940B (en) | 2013-11-13 | 2013-11-13 | A kind of Shears and there is the dynamic compaction machinery of this Shears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310566976.0A CN103552940B (en) | 2013-11-13 | 2013-11-13 | A kind of Shears and there is the dynamic compaction machinery of this Shears |
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| Publication Number | Publication Date |
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| CN103552940A true CN103552940A (en) | 2014-02-05 |
| CN103552940B CN103552940B (en) | 2015-12-16 |
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| CN201310566976.0A Active CN103552940B (en) | 2013-11-13 | 2013-11-13 | A kind of Shears and there is the dynamic compaction machinery of this Shears |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018003385A1 (en) * | 2016-06-30 | 2018-01-04 | コベルコ建機株式会社 | Gantry for construction machine |
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| JP2000198672A (en) * | 1999-01-08 | 2000-07-18 | Hitachi Constr Mach Co Ltd | A-type frame for construction machine |
| EP2107033A1 (en) * | 2008-04-02 | 2009-10-07 | Manitowoc Crane Group France | Boom of a tower crane with folding-unfolding mechanism |
| CN103010975A (en) * | 2012-12-04 | 2013-04-03 | 大连华锐重工集团股份有限公司 | Propeller strut device of floating crane |
| CN203048452U (en) * | 2013-02-04 | 2013-07-10 | 中联重科股份有限公司 | Propeller strut as well as installation structure and crane thereof |
| CN203602274U (en) * | 2013-11-13 | 2014-05-21 | 徐工集团工程机械股份有限公司 | A-frame and dynamic compaction machine with same |
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2013
- 2013-11-13 CN CN201310566976.0A patent/CN103552940B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000198672A (en) * | 1999-01-08 | 2000-07-18 | Hitachi Constr Mach Co Ltd | A-type frame for construction machine |
| EP2107033A1 (en) * | 2008-04-02 | 2009-10-07 | Manitowoc Crane Group France | Boom of a tower crane with folding-unfolding mechanism |
| CN103010975A (en) * | 2012-12-04 | 2013-04-03 | 大连华锐重工集团股份有限公司 | Propeller strut device of floating crane |
| CN203048452U (en) * | 2013-02-04 | 2013-07-10 | 中联重科股份有限公司 | Propeller strut as well as installation structure and crane thereof |
| CN203602274U (en) * | 2013-11-13 | 2014-05-21 | 徐工集团工程机械股份有限公司 | A-frame and dynamic compaction machine with same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018003385A1 (en) * | 2016-06-30 | 2018-01-04 | コベルコ建機株式会社 | Gantry for construction machine |
| JP2018002384A (en) * | 2016-06-30 | 2018-01-11 | コベルコ建機株式会社 | Gantry structure of construction machine |
| US10703614B2 (en) | 2016-06-30 | 2020-07-07 | Kobelco Construction Machinery Co., Ltd. | Gantry for construction machine |
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| CN103552940B (en) | 2015-12-16 |
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