IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0922262
(2009-03-10)
|
등록번호 |
US-8573420
(2013-11-05)
|
우선권정보 |
DE-10 2008 014 139 (2008-03-13) |
국제출원번호 |
PCT/EP2009/001701
(2009-03-10)
|
§371/§102 date |
20100913
(20100913)
|
국제공개번호 |
WO2009/112236
(2009-09-17)
|
발명자
/ 주소 |
- Nöske, Ingo
- Weckbecker, Alfons
- Rutz, Werner
|
출원인 / 주소 |
- Terex Cranes Germany GmbH
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
5 |
초록
▼
The invention relates to a crawler crane comprising two crawler supports (9) with rotating crawlers (8). Both crawler supports (9) are connected by a transversal bridge (10). A superstructure (3) of the crawler crane comprises at least one crane jib that can pivot about a vertical axis and is connec
The invention relates to a crawler crane comprising two crawler supports (9) with rotating crawlers (8). Both crawler supports (9) are connected by a transversal bridge (10). A superstructure (3) of the crawler crane comprises at least one crane jib that can pivot about a vertical axis and is connected to the transversal bridge (10). A pivotable articulation connects the transversal bridge (19) in a pivotable manner to the crane superstructure (3). At least one of the crawler supports (9) is connected to the transversal bridge (10) by means of a double link (11). A lower link (12) of the double link (11) is articulated on the crawler support (9) by means of a crawler support lower pivotable axis (13) and on the transversal bridge (10) by means of a transversal bridge lower pivotable axis (14). An upper link (15) of the double link (11) is articulated on the crawler support (9) by means of a crawler support upper pivotable axis (16) and on the transversal bridge (10) by means of a transversal bridge upper pivotable axis (17). A drive (20), in particular motorised drive, is used to pivot at least one of the two links (12, 15) about the pivotable axis (13) associated therewith, the result being a level-controllable crawler crane, in which the expenditure for adjusting a base-work position is reduced.
대표청구항
▼
1. A crawler crane (1) comprising: two crawler supports (9) having rotating crawlers (8),at least one transversal bridge (10) connecting the two crawler supports (9), wherein the at least one transversal bridge (10) comprises a transversal-bridge plane (38),a crane structure (3) having at least one
1. A crawler crane (1) comprising: two crawler supports (9) having rotating crawlers (8),at least one transversal bridge (10) connecting the two crawler supports (9), wherein the at least one transversal bridge (10) comprises a transversal-bridge plane (38),a crane structure (3) having at least one crane boom (4, 5) connected to the transversal bridge (10) so as to be able to pivot about a vertical axis (7),a pivot articulation (6) that pivotally connects the transversal bridge (10) to the crane structure (3),wherein at least one of the crawler supports (9) is connected to the transversal bridge (10) via a double link (11) comprising:a lower link (12) that is articulated on the crawler support (9) via a crawler support lower pivot shaft (13) and on the transversal bridge (10) via a transversal bridge lower pivot shaft (14),an upper link (15) that is articulated on the crawler support (9) via a crawler support upper pivot shaft (16) and on the transversal bridge (10) via a transversal bridge upper pivot shaft (17), andan adjustment drive (20) for pivotally displacing at least one of the two links (12, 15) about at least one of the pivot shafts with which said link is articulated to the crawler support (9) and the transversal bridge (10),wherein said double link (11) enables compensation of a roll inclination about an axis longitudinal to a driving direction defined by the two crawler supports (9), such that the roll inclination is provided between a foot print plane (18) of the crawler support (9) and the transversal-bridge plane (38), wherein the crane structure (3) has no roll inclination relative to the transversal-bridge plane (38),wherein the adjustment drive (20) has a reduction gear,wherein the adjustment drive (20) has a threaded rod (22) connected to the crawler support (9) and a nut (24) connected to the driven lower link (12), the nut being complementary to the thread of the threaded rod (22),wherein the threaded rod (22) has a trapezoidal external thread and the nut (24) has a trapezoidal internal thread complementary thereto,wherein the nut (24) is connected to the lower link (12) in a manner so as to be unable to rotate relative to the crawler support (9) by means of connecting pieces (25), wherein the connecting pieces (25) define a parallel key guidance for the nut (24). 2. A crawler crane (1) comprising: two crawler supports (9) having rotating crawlers (8),at least one transversal bridge (10) connecting the two crawler supports (9), wherein the at least one transversal bridge (10) comprises a transversal-bridge plane (38)a crane structure (3) having at least one crane boom (4, 5) connected to the transversal bridge (10) so as to be able to pivot about a vertical axis (7),a pivot articulation (6) that pivotally connects the transversal bridge (10) to the crane structure (3),wherein at least one of the crawler supports (9) is connected to the transversal bridge (10) via a double link (11) comprising:a lower link (12) that is articulated on the crawler support (9) via a crawler support lower pivot shaft (13) and on the transversal bridge (10) via a transversal bridge lower pivot shaft (14),an upper link (15) that is articulated on the crawler support (9) via a crawler support upper pivot shaft (16) and on the transversal bridge (10) via a transversal bridge upper pivot shaft (17), andan adjustment drive (20) for pivotally displacing at least one of the two links (12, 15) about at least one of the pivot shafts with which said link is articulated to the crawler support (9) and the transversal bridge (10),wherein said double link (11) enables compensation of a roll inclination about an axis longitudinal to a driving direction defined by the two crawler supports (9), such that the roll inclination is provided between a foot print plane (18) of the crawler support (9) and the transversal-bridge plane (38), wherein the crane structure (3) has no roll inclination relative to the transversal-bridge plane (38),wherein the adjustment drive (20) has a reduction gear,wherein the adjustment drive (20) has a threaded rod (22) connected to the crawler support (9) and a nut (24) connected to the driven lower link (12), the nut being complementary to the thread of the threaded rod (22),wherein the threaded rod (22) has a trapezoidal external thread and the nut (24) has a trapezoidal internal thread complementary thereto,wherein the nut (24) is connected to a lever end (26) of the lower link (12), the lever end being located opposite the transversal-bridge lower pivot shaft (14). 3. The crawler crane as claimed in claim 2, wherein the crawler-support lower pivot shaft (13) lies between the lever end (26) and the transversal-bridge lower pivot shaft (14). 4. A crawler crane (1) comprising: two crawler supports (9) having rotating crawlers (8),at least one transversal bridge (10) connecting the two crawler supports (9),a crane structure (3) having at least one crane boom (4, 5) connected to the transversal bridge (10) so as to be able to pivot about a vertical axis (7),a pivot articulation (6) that pivotally connects the transversal bridge (10) to the crane structure (3),wherein at least one of the crawler supports (9) is connected to the transversal bridge (10) via a double link (11) comprising: a lower link (12) that is articulated on the crawler support (9) via a crawler support lower pivot shaft (13) and on the transversal bridge (10) via a transversal bridge lower pivot shaft (14),an upper link (15) that is articulated on the crawler support (9) via a crawler support upper pivot shaft (16) and on the transversal bridge (10) via a transversal bridge upper pivot shaft (17), andan adjustment drive (20) for pivotally displacing at least one of the two links (12, 15) about at least one of the pivot shafts with which said link is articulated to the crawler support (9) and the transversal bridge (10),wherein said double link (11) enables compensation of a roll inclination about an axis longitudinal to a driving direction defined by the two crawler supports (9),wherein the adjustment drive (20) has a threaded rod (22) connected to the crawler support (9) and a nut (24) connected to the driven lower link (12), the nut being complementary to the thread of the threaded rod (22), andwherein the nut (24) is connected via a linear guiding mechanism (57) to the driven link (12). 5. The crawler crane as claimed in claim 4, wherein the linear guiding mechanism (57) is in the form of a roller-type connection. 6. The crawler crane as claimed in claim 4, wherein the guiding mechanism (57) comprises a guiding body (54) having a top end wall (58) and a bottom end wall (59), wherein the top end wall (58) runs on a top roller unit (60) and wherein the bottom end wall (59) runs on a bottom roller unit (61). 7. The crawler crane as claimed in claim 6, wherein each of the roller units (60, 61) has a plurality of bearing rollers (62). 8. The crawler crane as claimed in claim 7, wherein the bearing rollers (62) of the top roller unit (60) are supported in a top bearing cage (63) and the bearing rollers (62) of the bottom roller unit (61) are supported in a bottom bearing cage (64), wherein the bearing cages (63, 64) are fixedly connected to a lever end (26) of the lower link (12) via holding components (65). 9. The crawler crane as claimed in claim 8, wherein the holding components (65) are wedge-shaped in an axial section through the adjustment drive (20).
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