CN102491188A - Ocean platform crane - Google Patents
Ocean platform crane Download PDFInfo
- Publication number
- CN102491188A CN102491188A CN2011103680215A CN201110368021A CN102491188A CN 102491188 A CN102491188 A CN 102491188A CN 2011103680215 A CN2011103680215 A CN 2011103680215A CN 201110368021 A CN201110368021 A CN 201110368021A CN 102491188 A CN102491188 A CN 102491188A
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- spud leg
- turntable
- pilum
- platform
- hoisting crane
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Abstract
An ocean platform crane comprises a foundation pillar (3), a slewing bearing (4) and a rotary table (5). The foundation pillar (3) is of a hollow structure with two ends open, the bottom of the foundation pillar (3) is fixed onto a platform (1), a through hole is arranged in the middle of the rotary table (5), the rotary table (5) is rotatably matched with the foundation pillar (3) through the slewing bearing (4), the inner diameter of the through hole of the rotary table (5) and the inner diameter of the foundation pillar (3) are larger than the outer diameter of a pile leg (2), the lower portion of the pile leg (2) penetrates through the rotary table (5) and the foundation pillar (3), and safety gaps are reserved between the pile leg (2) and the inner wall of the rotary table (5) and between the pile leg (2) and the inner wall of the foundation pillar (3). The foundation pillar is of the hollow structure with the inner diameter larger than the outer diameter of the pile leg, and the pile leg is arranged in the foundation pillar, so that valuable space of the platform is saved, structural arrangement on the platform is facilitated, a boom cannot contact with the pile leg when the crane slews, normal operation of the crane is guaranteed, and structural safety of the crane and the pile leg is protected.
Description
Technical field
The present invention relates to a kind of fixed offshore platform hoisting crane, belong to the hoisting crane technical field.
Background technology
Fixed offshore platform provides convenience, stable marine operation and the place of life for human development and use marine resources.Fixed offshore platform is made up of platform and some passive spud legs of ability that can go up and down, and spud leg is generally three, lays respectively on the flat-bed load-bearing endpoint location.The length of spud leg is longer, stretches out usually that there is higher height on the plane on the platform.Also being furnished with hoisting crane on the platform, being used for handling goods and handling personnel, is production and safety apparatus important on the platform.Hoisting crane generally also is arranged in around the flat-bed, thus with the spud leg close together of stretching out the platform upper mounting plate.In the hoisting crane work, the lifting of jib luffing perhaps when column 360 degree full circle swingings, is easy to run into the spud leg of close; Both influenced the normal operation of hoisting crane; Collision possibly cause destroying the structure of jib or spud leg again, even serious accident takes place, and threatens the flat-bed safe operation.
Summary of the invention
Jib is run into spud leg easily when the objective of the invention is to overcome existing platform hoisting crane and stretching out flat-bed spud leg hypotelorism, hoisting crane work; Influence the normal operation of hoisting crane, possibly a kind of later-model platform hoisting crane is provided because of shortcomings and deficiencies such as impact wreckage jib or pile leg structures again; The pilum of hoisting crane is the hollow structure that internal diameter is slightly larger than the spud leg diameter; Spud leg is arranged in the pilum and is integrated with hoisting crane, has both practiced thrift the flat-bed expensive real estate, has made things convenient for the structural arrangement on the platform, the situation that jib and spud leg are collided in the time of can avoiding crane rotation again; Ensure the normal operation of hoisting crane, and the structural safety of protection hoisting crane and spud leg.
The present invention for realizing the technical scheme that technical purpose adopts is:
A kind of platform hoisting crane comprises pilum, pivoting support and turntable, and platform and spud leg; The bottom of said pilum is fixed on the platform, and the middle part of said turntable is provided with perforate, and said turntable is captiveed joint with pivoting support; And through pivoting support and pilum normal-running fit; Said pilum is the hollow structure of both ends open, and the perforate of said turntable is a through hole, and the through hole internal diameter of the internal diameter of said pilum and turntable is greater than the external diameter of spud leg; The through hole of turntable and the inner chamber of pilum are passed in the bottom of said spud leg, and are provided with safety gap between the internal chamber wall of the through-hole wall of the outer wall of spud leg and turntable and pilum.
A kind of platform hoisting crane, the safety gap between the internal chamber wall of the outer wall of said spud leg and the through-hole wall of turntable and pilum is 10～60 centimetres.
A kind of platform hoisting crane; Said hoisting crane also comprises luffing steel rope, jib, support, top pulleys group and head assembly pulley, and said support is made up of two A cabinet frames and cross bar, and said each A cabinet frame is vertical montant and the hinged support that forms the A type of bevelled brace; Said two A cabinet frames vertically are hinged on the turntable and are symmetrically located at the left of jib and right-hand; The top of said two A cabinet frames is connected with cross bar, and said top pulleys group is two groups, is connected to the top of two A cabinet frames; Said head assembly pulley is two groups; Be connected to the both sides at the top of jib, said luffing steel rope solderless wrapped connection respectively is provided with safety gap between said each A cabinet frame and the spud leg between head assembly pulley and top pulleys group at the jib homonymy; Be provided with safety gap between said cross bar and the spud leg, be provided with safety gap between said luffing steel rope and the spud leg.
A kind of platform hoisting crane, the safety gap of said each A cabinet frame and spud leg is 20～80 centimetres, and the safety gap of said cross bar and spud leg is 20～80 centimetres, and the safety gap of said luffing steel rope and spud leg is 20～80 centimetres.
A kind of platform hoisting crane, said hoisting crane also comprises strut, and said strut is fixedly connected on the jib and is perpendicular with jib, and the length of strut is greater than the width of jib, and said two groups of head assembly pulleys are connected to the two ends of strut.
A kind of platform hoisting crane, the length of said strut equals the spacing of two A cabinet frames.
Compared with prior art, the present invention is a kind of later-model hoisting crane, and beneficial effect is:
1. the pilum of hoisting crane is the hollow structure of internal diameter greater than the spud leg diameter; Spud leg is arranged in the pilum and is integrated with hoisting crane; Both practice thrift the flat-bed expensive real estate, made things convenient for the structural arrangement on the platform; Can not run into spud leg when making the jib revolution again, ensure the normal operation of hoisting crane, and the structural safety of protection hoisting crane and spud leg.
2. hoisting crane is provided with suitable safety gap between spud leg and pilum, turntable, luffing steel rope; Can prevent that inclination in the spud leg lifting process from causing and pilum, turntable and luffing steel rope between friction or collision take place, ensure the normal up-down of spud leg and the normal operation of hoisting crane.
3. the present invention is provided with the strut of width greater than jib on the jib of hoisting crane; The luffing steel rope struts to the jib both sides under the effect of strut; Thereby increased the spacing of luffing steel rope and spud leg; Guarantee between luffing steel rope and the spud leg safety gap that keeps suitable, and do not increase the jib structure of hoisting crane, do not influence the Combination property of hoisting crane that it is reasonable in design, simple in structure, with low cost.
Description of drawings
Fig. 1: the structural representation of platform hoisting crane of the present invention.
The birds-eye view of Fig. 2: Fig. 1.
Among the figure: 1-platform, 2-spud leg, 3-pilum, 4-pivoting support, 5-turntable, 6-luffing steel rope, 7-jib, 8-support, 9-top pulleys group, 10-head assembly pulley, 11-A cabinet frame, 12-cross bar, 13-strut.
The specific embodiment
Referring to Fig. 1, the structural representation of platform hoisting crane of the present invention, the bottom of the pilum 3 of hoisting crane is fixed on the platform 1, as the supporting structure of hoisting crane.The middle part of turntable 5 is provided with perforate, and turntable 5 is captiveed joint with pivoting support 4 in tapping, and through pivoting support 4 and pilum 5 normal-running fiies, thereby turntable 5 can do 360 degree full circle swingings around pilum 3 with pivoting support 4, with convenient lifting, transportation weight.Pilum 3 is the hollow tube-shape structure of both ends open; And internal diameter is greater than the external diameter of spud leg 2; The perforate of turntable 5 is through hole and the aperture external diameter greater than spud leg 2; The through hole of turntable 5 and the inner chamber of pilum 3 are passed in the bottom of spud leg 2, and are provided with safety gap between the internal chamber wall of the through-hole wall of the outer wall of spud leg 2 and turntable 5 and pilum 3, thereby spud leg 2 can go up and down in the inner chamber of the through hole of turntable 5 and pilum 3 freely.Platform hoisting crane of the present invention; Spud leg 2 is arranged in the pilum 3 of hoisting crane and is integrated with hoisting crane, when turntable 5 drove jibs 7 and on pilum 3, turns round, essence also was around spud leg 2 revolutions; Therefore any position of hoisting crane can not collide spud leg 2; Ensured normal, the safe in operation of hoisting crane, and the structural safety of protection hoisting crane and spud leg, practice thrift valuable platform space simultaneously, made things convenient for the platform structure layout.
Platform hoisting crane of the present invention, the safety gap between the through-hole wall of the outer wall of spud leg 2 and turntable 5 and the internal chamber wall of pilum 3 can be set to 10～60 centimetres.Between spud leg 2 and turntable 5 and pilum 3, suitable safety gap is set, can prevents with the through-hole wall of turntable 5 and the inwall of pilum 3 friction or collision to take place in spud leg 2 lifting process, ensure that spud leg 2 goes up and down in the inside of turntable 5 and pilum 3 freely.
Platform hoisting crane of the present invention can also comprise luffing steel rope 6, jib 7, support 8, top pulleys group 9 and head assembly pulley 10.Support 8 is made up of two A cabinet frames 11 and cross bar 12, is used for support, top assembly pulley 9.The serve as reasons support of vertical montant and the hinged A of the forming type of bevelled brace of each A cabinet frame 11; Two A cabinet frames 11 vertically are hinged on the turntable 5 and are symmetrically located at the left of jib 7 and right-hand; The top of two A cabinet frames 11 is connected with cross bar 12, and cross bar 12 plays fixedly A cabinet frame 11.Top pulleys group 9 is two groups, is connected to the top of two A cabinet frames 11, and head assembly pulley 10 is two groups, is connected to the both sides at the top of jib 7, and 6 solderless wrapped connections of luffing steel rope are between head assembly pulley 10 and top pulleys group 9 at the homonymy of jib 7.The solderless wrapped connection of luffing steel rope 6 can be undertaken by following method: an end solderless wrapped connection of luffing steel rope 6 is on winch; The other end is walked around the top pulleys group 10 in left side, the head assembly pulley 10 in left side, the head assembly pulley 10 on right side, the top pulleys group 9 on right side, the top pulleys group 9 in left side successively; Circulation is twined successively; Thereby make luffing steel rope 6 solderless wrapped connection all the time in the both sides of jib 7, be convenient to keep suitable safety gap with the spud leg 2 at middle part.
For preventing that support 8, luffing steel rope 6 and spud leg 2 from friction or collision taking place, between two A cabinet frames 11 and the spud leg 2, between cross bar 12 and the spud leg 2, be equipped with safety gap between luffing steel rope 6 and the spud leg 2.Take all factors into consideration the operation of hoisting crane and the up-down of spud leg 2, the safety gap between each A cabinet frame 11 and spud leg 2, cross bar 12 and spud leg 2, luffing steel rope 6 and the spud leg 2 can be set to 20～80 centimetres.
Platform hoisting crane provided by the invention keeps suitable safety gap for guaranteeing luffing steel rope 6 and spud leg 2, and strut 13 can also be set.Strut 13 is fixedly connected on the jib 7 and is perpendicular with jib 7, and the length of strut 13 is greater than the width of jib 7.Head assembly pulley 10 is made as two groups, is connected to the two ends of strut 13.Further, the length of strut 13 is set to be equal to or slightly less than the spacing of two A cabinet frames 11.
Existing platform hoisting crane is not provided with strut 13; Because the width of jib 7 is limited; Even significantly increase the spacing of two A cabinet frames 11, also make the distance of solderless wrapped connection between the luffing steel rope 6 of jib 7 both sides less, can not satisfy the requirement that luffing steel rope 6 and spud leg 2 keep safety gaps.If consider to increase the width of jib 7, can cause significantly increasing the weight and the infrastructure cost of jib 7, and have a strong impact on the performances such as rated load weight of hoisting crane, concerning the very high ocean hoisting crane of deadweight, volume and performance requriements, be difficult to realize.The present invention is provided with the strut 13 of width greater than jib 7 on the jib 7 of hoisting crane; And two groups of head assembly pulleys 10 are connected the two ends of strut 13; Luffing steel rope 6 opens to the both sides of jib 7 under the effect of strut 13; Thereby significantly increased the spacing between luffing steel rope 6 and the spud leg 2, be convenient between luffing steel rope 6 and spud leg 2, suitable safety gap is set.The setting of strut 13 under the prerequisite that guarantees the safety gap between luffing steel rope 6 and the spud leg 2, does not increase the deadweight and the infrastructure cost of hoisting crane, does not influence the Combination property of hoisting crane yet, and it is reasonable in design, simple in structure, with low cost.
Specific embodiment: platform hoisting crane provided by the invention, 190 tons of design hoisting capacities, the maximum outside diameter of spud leg 1 is 3258mm, the internal diameter 3648mm of pilum 3, the monolateral space of staying 195mm, the internal diameter of the through hole of turntable 5 is 3668mm.Luffing steel rope 6 is 4539mm in the minimum spacing of both sides, spud leg 1 place, greater than the external diameter 3258mm of spud leg 1.All leave enough safety distances between spud leg 1 and turntable 5, pilum 3 and the luffing steel rope 9, thereby spud leg 2 can move up and down freely when going up and down and do not bump with any parts of hoisting crane, spud leg move and the operation of hoisting crane all safe and reliable.
Claims (6)
1. platform hoisting crane; Comprise pilum (3), pivoting support (4) and turntable (5), and platform (1) and spud leg (2), the bottom of said pilum (3) is fixed on the platform (1); The middle part of said turntable (5) is provided with perforate; Said turntable (5) is captiveed joint with pivoting support (4), and through pivoting support (4) and pilum (3) normal-running fit, it is characterized in that: said pilum (3) is the hollow structure of both ends open; The perforate of said turntable (5) is a through hole; The through hole internal diameter of the internal diameter of said pilum (3) and turntable (5) is greater than the external diameter of spud leg (2), and the through hole of turntable (5) and the inner chamber of pilum (3) are passed in the bottom of said spud leg (2), and is provided with safety gap between the internal chamber wall of the through-hole wall of the outer wall of spud leg (2) and turntable (5) and pilum (3).
2. a kind of platform hoisting crane according to claim 1 is characterized in that: the safety gap between the through-hole wall of the outer wall of said spud leg (2) and turntable (5) and the internal chamber wall of pilum (3) is 10～60 centimetres.
3. a kind of platform hoisting crane according to claim 1; It is characterized in that: said hoisting crane also comprises luffing steel rope (6), jib (7), support (8), top pulleys group (9) and head assembly pulley (10); Said support (8) is made up of two A cabinet frames (11) and cross bar (12); Said each A cabinet frame (11) is vertical montant and the hinged support that forms the A type of bevelled brace; Said two A cabinet frames (11) vertically are hinged on turntable (5) and go up and be symmetrically located at the left of jib (7) and right-hand; The top of said two A cabinet frames (11) is connected with cross bar (12), and said top pulleys group (9) is two groups, is connected to the top of two A cabinet frames (11); Said head assembly pulley (10) is two groups; Be connected to the both sides at the top of jib (7), said luffing steel rope (6) solderless wrapped connection respectively is provided with safety gap between said each A cabinet frame (11) and the spud leg (2) between head assembly pulley (10) that is positioned at jib (7) homonymy and top pulleys group (9); Be provided with safety gap between said cross bar (12) and the spud leg (2), be provided with safety gap between said luffing steel rope (6) and the spud leg (2).
4. a kind of platform hoisting crane according to claim 3; It is characterized in that: said each A cabinet frame (11) is 20～80 centimetres with the safety gap of spud leg (2); Said cross bar (12) is 20～80 centimetres with the safety gap of spud leg (2), and said luffing steel rope (6) is 20～80 centimetres with the safety gap of spud leg (2).
5. according to claim 3 or 4 described a kind of platform hoisting cranes; It is characterized in that: said hoisting crane also comprises strut (13); It is last and perpendicular with jib (7) that said strut (13) is fixedly connected on jib (7); And the length of strut (13) is greater than the width of jib (7), and said two groups of head assembly pulleys (10) are connected to the two ends of strut (13).
6. according to claim 3 or 4 described a kind of platform hoisting cranes, it is characterized in that: the length of said strut (13) equals the spacing of two A cabinet frames (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103680215A CN102491188A (en) | 2011-11-18 | 2011-11-18 | Ocean platform crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103680215A CN102491188A (en) | 2011-11-18 | 2011-11-18 | Ocean platform crane |
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| Publication Number | Publication Date |
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| CN102491188A true CN102491188A (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103680215A Pending CN102491188A (en) | 2011-11-18 | 2011-11-18 | Ocean platform crane |
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| CN (1) | CN102491188A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815625A (en) * | 2012-07-31 | 2012-12-12 | 武汉船用机械有限责任公司 | Crane for ocean platform |
| CN102963822A (en) * | 2012-11-01 | 2013-03-13 | 上海大学 | Novel offshore platform crane |
| CN103028887A (en) * | 2012-11-23 | 2013-04-10 | 南通太平洋海洋工程有限公司 | Method for replacing and welding diagonal-bracing steel tube of ocean engineering crane arm support |
| CN103496641A (en) * | 2013-09-04 | 2014-01-08 | 武汉船用机械有限责任公司 | Rotary table structure and crane having rotary table structure |
| CN104803298A (en) * | 2014-07-23 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Ocean platform, crane apparatus and arrangement method of crane on ocean platform |
| CN106081955A (en) * | 2016-05-19 | 2016-11-09 | 武汉船用机械有限责任公司 | A kind of around spud leg formula offshore platform crane |
| CN108773785A (en) * | 2018-06-13 | 2018-11-09 | 国家电网有限公司 | A kind of cable channel cover plate lifting device convenient for folding storage |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN103028887A (en) * | 2012-11-23 | 2013-04-10 | 南通太平洋海洋工程有限公司 | Method for replacing and welding diagonal-bracing steel tube of ocean engineering crane arm support |
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| CN103496641A (en) * | 2013-09-04 | 2014-01-08 | 武汉船用机械有限责任公司 | Rotary table structure and crane having rotary table structure |
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| CN104803298A (en) * | 2014-07-23 | 2015-07-29 | 烟台中集来福士海洋工程有限公司 | Ocean platform, crane apparatus and arrangement method of crane on ocean platform |
| CN106081955A (en) * | 2016-05-19 | 2016-11-09 | 武汉船用机械有限责任公司 | A kind of around spud leg formula offshore platform crane |
| CN108773785A (en) * | 2018-06-13 | 2018-11-09 | 国家电网有限公司 | A kind of cable channel cover plate lifting device convenient for folding storage |
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Application publication date: 20120613 |