SU523630A3 - Telescopic boom - Google Patents
Telescopic boomInfo
- Publication number
- SU523630A3 SU523630A3 SU1748697A SU1748697A SU523630A3 SU 523630 A3 SU523630 A3 SU 523630A3 SU 1748697 A SU1748697 A SU 1748697A SU 1748697 A SU1748697 A SU 1748697A SU 523630 A3 SU523630 A3 SU 523630A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- link
- links
- rollers
- parallel
- transverse beam
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Description
(54) ТЕЛЕСКОПИЧЕСКАЯ СТРЕЛА(54) TELESCOPIC BOOM
двух расположенных параллельно друг другу ребер 1а и 16, 2а и 26, За и 36, 4а, и 46, которые жестко соединены между собой ноперечными балками 10, 11, 12 и 13, образу при этом соответственно П-образные рамы. Ребра 2а и 26, За и 36, 4а и 46 телескопически убираютс одно в другое, в результате чего стрела принимает положение, доказанное на фиг. 1 и 8, при котором ребра вдвигаютс одно в другое, а поперечные балки звеньев примыкают друг к другу, или в раздвинутом состо нии- шоложение, показанное на фиг. 2, 3 и 7.two ribs 1a and 16 parallel to each other, 2a and 26, Za and 36, 4a, and 46, which are rigidly interconnected by cross-beams 10, 11, 12 and 13, thus forming respectively U-shaped frames. The ribs 2a and 26, Za and 36, 4a and 46 are telescopically retracted one into the other, with the result that the boom assumes the position proven in FIG. 1 and 8, in which the ribs slide one into the other, and the transverse beams of the links abut each other, or in an extended state, the position shown in FIG. 2, 3 and 7.
Каждое ребро 1а и 16, 2а и 26, За н 36, 4а и 46 (фиг. 4, 5, 6 и 8) имеет поперечное сечение в виде трацеции, больша из параллельных сторон которой образует верхнюю стенку 1в, 2в, Зв и 4в, а меньша - нижнюю 1г, 2г, Зг и 4г, причем нижн стенжа дл повышени ее жесткости выполнена из материала более толстого , чем остальные.Each edge 1a and 16, 2a and 26, Over 36, 4a and 46 (Figs. 4, 5, 6 and 8) has a cross section in the form of a trac- tion, most of the parallel sides of which form the upper wall 1c, 2c, Sv and 4c and the smaller one is lower 1g, 2g, 3g, and 4g, with the lower stencil, to increase its rigidity, made of a material that is thicker than the rest.
Между верхней стенкой 1в, 2в, Зв и 4в (фиг. 6) и боковыми стенками 1а и 16, 2а и 26, За и 36, 4а и 46 имеютс скосы 1д, 2д, Зд и 4д под углом 45°, выполн юшие с внутренней стороны роль беговых дорожек дл верхних роликов 15, 16, 17 (фиг. 2, 3 и 5), смонтированных на таких же окосах, но с наружной стороны на нижних концах 6око1вых ребер 2а и 26, За и 36, 4а и 46 и выполн ющих роль опор дл роликов 15, 16 и 17. В местах установки верхних роликов 15, 16 и 17 во избежание деформаций сечени ребер 2а и 26, За и 36, 4а и 46, которые могут возникнуть при перегрузках , предусмотрены жесткие элементы 2е, Зе и 4е, выполненные, например, в виде поперечного ребра из листового железа.Between the upper wall 1c, 2c, Zv and 4c (Fig. 6) and the side walls 1a and 16, 2a and 26, Za and 36, 4a and 46, there are bevels 1d, 2d, Rear and 4d at an angle of 45 °, performed with inner side, the role of treadmills for the upper rollers 15, 16, 17 (Figs. 2, 3, and 5) mounted on the same cores, but from the outer side at the lower ends of the 6th ribs 2a and 26, Za and 36, 4a and 46 and supporting rollers 15, 16 and 17 serve as supports for the installation of upper rollers 15, 16 and 17 in order to avoid deformations of the cross sections of the ribs 2a and 26, Za and 36, 4a and 46, which may occur during overloads, rigid elements 2 are provided , Se and 4e made, e.g., in the form of transverse ribs of the sheet metal.
Поперечные балки 10, 11 и 12 представл ют собой сечение в виде трапеции, больша из параллельных сторон которой образована также верхней стенкой со окосами под углом 45, а меньша - нижней. В поперечных балках 10, И и 12 с внутренней стороны каждое ребро П-образных рам снабжено роликами 18, 19 и 20, перемеш,аюшихс соответственно по беговым дорожкам нижних стенок трапеции 2г, Зг и 4г внутренних звеньев 2, 3 н 4.The transverse beams 10, 11, and 12 are a section in the form of a trapezium, the larger of the parallel sides of which is also formed by the upper wall with a hinge at an angle of 45, and the smaller one - the lower one. In the transverse beams 10, I and 12 from the inner side, each edge of the U-shaped frames is provided with rollers 18, 19 and 20, mixed, Ayushihs, respectively, along the treadmills of the lower walls of the trapezium 2g, 3g and 4g of the internal links 2, 3 n 4.
Дл уменьшени удельного давлени на боковые дорожки и обеспечени надежности центрировани одного звена к другому ролики 15, 16, 17, 18, 19 и 20 смонтированы сдвоенными по две пары, оси которых расположены параллельно плоскости беговых дорожек. Внутренние звень 2, 3 и 4 снабжены механизмами выдвижени , выполненными в виде гидравлических цилиндров 21, 22 н 23, штоки которых соответственно прикреплены к поперечным балкам 11, 12 и 13 звеньев 2, 3 и 4, а трубки цилиндров соответственно - к поперечным балкам 10, 11 и Л2 звеньев 1, 2 и 3.To reduce the specific pressure on the side tracks and to ensure the reliability of centering one link to another, the rollers 15, 16, 17, 18, 19 and 20 are mounted doubled in pairs, the axes of which are parallel to the plane of the treadmills. Internal links 2, 3 and 4 are equipped with extension mechanisms made in the form of hydraulic cylinders 21, 22 and 23, the rods of which are respectively attached to cross beams 11, 12 and 13 links 2, 3 and 4, and cylinder tubes, respectively, to cross beams 10 , 11 and L2 links 1, 2 and 3.
Эти гидравлические цилиндры 21, 22 и 23 расположены параллельно один над другим между боковыми ребрами 1а и 16, 2а и 26, За и 36, 4а и 46 П-о.6разных рам. Сво бодные концы гидравлических цилиндров 22 и 23 снабжены соответственно направл юш,ими роликами 24 и 25, которые перемещаютс соответственно по направл ющим 26 и 27, раоположенны.м вдоль цилиндра каждого из нредшествующих гидравлических цилиндров 21 и 22. Свободный конец гидравлического цилиндра 21 с помощью опорного элемента 28 дополнительно соединен со звеиоМ 1.These hydraulic cylinders 21, 22 and 23 are arranged in parallel one above the other between the side ribs 1a and 16, 2a and 26, Za and 36, 4a and 46 P-o.6 of different frames. The free ends of the hydraulic cylinders 22 and 23 are respectively guided with rollers 24 and 25, which move along the guides 26 and 27 respectively, along the cylinder of each of the previous hydraulic cylinders 21 and 22. The free end of the hydraulic cylinder 21 is the support element 28 is additionally connected with the animal 1.
Принцип действи и перемещени одного звена относительно другого и вместе с ними гидравлических цилиндров показан на фигурах .The principle of operation and movement of one link relative to another and together with them hydraulic cylinders is shown in the figures.
Ф о р М у л а изобретени F o r M o l a
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712103570 DE2103570C3 (en) | 1971-01-26 | 1971-01-26 | Telescopic crane boom in frame construction |
Publications (1)
Publication Number | Publication Date |
---|---|
SU523630A3 true SU523630A3 (en) | 1976-07-30 |
Family
ID=5796937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1748697A SU523630A3 (en) | 1971-01-26 | 1972-01-24 | Telescopic boom |
Country Status (6)
Country | Link |
---|---|
DD (1) | DD95449A5 (en) |
DE (1) | DE2103570C3 (en) |
FR (1) | FR2123377A1 (en) |
GB (1) | GB1363776A (en) |
IT (1) | IT949687B (en) |
SU (1) | SU523630A3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2547492C2 (en) * | 2010-12-17 | 2015-04-10 | Тадано Фаун Гмбх | Movable telescopic lifting crane |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3807108A (en) * | 1972-09-18 | 1974-04-30 | Harnischfeger Corp | Structural design of boom section with inverted {37 a{38 {11 frame cross-section |
FR2255251B1 (en) * | 1973-12-20 | 1976-11-19 | Creusot Loire | |
FI80408C (en) * | 1988-01-12 | 1990-06-11 | Interwood Ab Oy | FAESTSYSTEM FOER EN TRAEVARULASTBILS LASTARE. |
SE501102C2 (en) * | 1993-04-26 | 1994-11-14 | Hiab Ab | Extendable crane arm |
DE4328662A1 (en) * | 1993-08-26 | 1995-03-02 | Krupp Ag Hoesch Krupp | Jib profile and/or articulated-tip profile |
FR2751317B1 (en) * | 1996-09-24 | 1998-09-25 | Chabas & Besson Hydraulique Ma | DEVICE FOR SOLIDARIZING A HYDRAULIC CYLINDER ON THE FRAME OF A LIFTING MACHINE OR THE LIKE |
BRPI0816409A2 (en) * | 2007-09-05 | 2015-03-03 | Palfinger Ag | PROFILE FORMAT FOR A CRANE BOOM. |
DE102012210112B3 (en) * | 2012-06-15 | 2013-11-14 | Tadano Faun Gmbh | Mobile telescopic crane comprises telescopic arm with three sub-arms, where lower sub-arm faces undercarriage and two upper sub-arms are turned away from undercarriage and are hinged to undercarriage, and sub-arm is made of sub-arm sections |
DE102012210110B3 (en) * | 2012-06-15 | 2013-11-14 | Tadano Faun Gmbh | Method for start-up of mobile telescopic crane, involves forming extension arm portions by partial extension portions arranged at distance to each other with bending-resistant connectors, and latching partial arm portions of lower arm |
DE102012210109B3 (en) * | 2012-06-15 | 2013-11-14 | Tadano Faun Gmbh | Mobile telescopic crane has rigid connection elements that are provided with cantilever portions respectively, and upper sub-arms that are faced away from wheeled undercarriage and are partially formed using fiber composite material |
CN103043541B (en) * | 2012-12-31 | 2015-09-16 | 大连理工大学 | Two box type telescopic arm configuration |
DE102019002039A1 (en) | 2019-03-22 | 2020-09-24 | David Mann | Lifting device |
-
1971
- 1971-01-26 DE DE19712103570 patent/DE2103570C3/en not_active Expired
-
1972
- 1972-01-24 SU SU1748697A patent/SU523630A3/en active
- 1972-01-25 FR FR7202310A patent/FR2123377A1/fr not_active Withdrawn
- 1972-01-25 IT IT4793572Q patent/IT949687B/en active
- 1972-01-26 GB GB371372A patent/GB1363776A/en not_active Expired
- 1972-01-26 DD DD16051472A patent/DD95449A5/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2547492C2 (en) * | 2010-12-17 | 2015-04-10 | Тадано Фаун Гмбх | Movable telescopic lifting crane |
RU2548652C2 (en) * | 2010-12-17 | 2015-04-20 | Тадано Фаун Гмбх | Movable telescopic hoisting crane |
Also Published As
Publication number | Publication date |
---|---|
DD95449A5 (en) | 1973-02-05 |
GB1363776A (en) | 1974-08-14 |
DE2103570C3 (en) | 1974-03-07 |
DE2103570B2 (en) | 1973-08-02 |
FR2123377A1 (en) | 1972-09-08 |
DE2103570A1 (en) | 1972-08-10 |
IT949687B (en) | 1973-06-11 |
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