CN211034856U - Large-scale diameter-variable rotatable hanging beam - Google Patents
Large-scale diameter-variable rotatable hanging beam Download PDFInfo
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- CN211034856U CN211034856U CN201921223643.7U CN201921223643U CN211034856U CN 211034856 U CN211034856 U CN 211034856U CN 201921223643 U CN201921223643 U CN 201921223643U CN 211034856 U CN211034856 U CN 211034856U
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Abstract
The utility model discloses a large-scale variable-diameter rotatable hanging beam, which comprises an upper beam layer, a lower beam layer, a rotating mechanism arranged between the upper beam layer and the lower beam layer, and two sliding mechanisms respectively positioned on the lower beam layer; the rotating mechanism comprises a rotating device and a plurality of rotating locking devices; the upper beam layer and the lower beam layer are in rotating connection through the rotating device, so that the upper beam layer and the lower beam layer can rotate relatively; the plurality of rotary locking devices are arranged on the adjacent side of the rotary device at intervals and are locked with the rotary device so as to fix the relative position between the upper beam layer and the lower beam layer; the two sliding mechanisms are respectively and movably arranged at two ends of the suspension arm of the lower beam layer; the large-scale variable-diameter rotatable hanging beam realizes the adjustment of the hanging distance through the sliding seats arranged at the two ends of the lower beam so as to be convenient for the size adaptation of the hanging object; and the rotary adjustment of the hoisting object in the hoisting working process is realized through the mutual matching of the rotary device and the rotary locking mechanism between the upper layer beam and the lower layer beam.
Description
Technical Field
The utility model relates to a large-scale hanging beam technical field of marine wind power construction, in particular to large-scale variable diameter rotatable formula hanging beam.
Background
In the offshore wind power foundation construction and installation construction project, the lifting beam can realize the effects of lifting the effective height of the crane, expanding the lifting range and changing the stress direction of the sling in the offshore area with limited working surface. But traditional large-scale hanging beam has two limitations in offshore wind turbine hoist and mount construction:
the marine wind power construction ship stays the condition that needs fully to combine the ocean current, and even if there may be great difference in the ocean current condition of different positions departments in same wind farm, the ship stays the position direction and also has the difference, therefore the angle of pile sinking after the steel-pipe pile lifts by crane has the difference, and consider the influence of normal wind direction, fan tower section of thick bamboo door is a definite direction, consequently should ensure that the angle of pile body satisfies the requirement, thereby guarantee integrated accessory component installation angle, tower section of thick bamboo door direction etc. and satisfy the requirement. Different boats and ships stay a position angle, often need the pile to stand the back and carry out appropriate adjustment to pile body angle to guarantee that the angle of piling satisfies the requirement. This requirement is difficult to achieve with large suspension beams available on the market today.
In the last two years, the domestic offshore wind power industry is developed rapidly, in 2017, the domestic offshore wind power is counted to be mainly a 1.5-3.0MW fan, in 2019, the main power type of the domestic offshore wind power is 4.2-5.0MW, and in some projects, fans with the MW higher than 6.0 are used. Correspondingly, the diameter of the offshore wind turbine foundation steel pipe pile is also increasing continuously, the diameter of the current domestic 4.2-5.0MW wind turbine foundation pile is about 6m, and the diameter of the machine type foundation pile above 6.0MW can reach 8 m. Therefore, the current hanging beam with unadjustable hanging distance in China has poor market adaptability.
Therefore, a hanging beam which is suitable for hoisting large-scale hanging objects and has the functions of diameter changing and rotation is needed to be designed, so that the technical and quality requirements of offshore wind power construction and the market requirement for rapid development of the industry are better met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a but be applicable to large-scale hanging thing hoist and mount, but and have the large-scale variable diameter rotary type hanging beam of reducing and rotatable function.
Therefore, the utility model discloses technical scheme as follows:
a large-scale variable-diameter rotatable hanging beam comprises an upper beam layer, a lower beam layer, a rotating mechanism arranged between the upper beam layer and the lower beam layer, and two sliding mechanisms respectively positioned on the lower beam layer; wherein the rotating mechanism comprises a rotating device and a plurality of rotating locking devices; the upper beam layer and the lower beam layer are coaxially arranged and are in rotating connection through the rotating device, so that the upper beam layer and the lower beam layer can rotate relatively; the plurality of rotary locking devices are uniformly distributed on the adjacent side of the rotary device along the circumferential direction, and each rotary locking device enables the relative position between the upper beam layer and the lower beam layer to be fixed by arranging a locking pin shaft on each rotary locking device between the rotary device and the rotary locking device; the two sliding mechanisms are respectively movably arranged at two ends of the suspension arm of the lower beam layer, so that the distance between the two sliding mechanisms can be adjusted to be adaptive to the size of the suspended object.
Further, the slewing device comprises a slewing bearing, an inner race and an outer race; the inner wall of the bottom end of the inner race ring body structure extends towards the center to form an annular chassis; the top of the inner race is welded on the bottom surface of the upper beam layer, and the bottom of the inner race is fixed on the inner ring of the slewing bearing through a plurality of bolts uniformly distributed on the annular chassis along the circumferential direction; the outer race is of an annular body structure, and an annular top disc is formed by extending the inner wall of the top end of the outer race to the center; the bottom of the outer race is welded on the top surface of the lower beam layer, and the top of the outer race is fixed on the outer ring of the slewing bearing through a plurality of bolts uniformly distributed on the annular top disc along the circumferential direction; a plurality of first positioning pin holes are further formed in the annular chassis of the inner race along the circumferential direction;
a plurality of rotational locking devices are uniformly distributed on the inner side of the inner race along the circumferential direction; each rotary locking device comprises a locking seat and a locking pin shaft; the locking seat is welded and fixed on the inner side of the outer race and is of a cylindrical structure, and a second positioning pin hole is formed in the top surface of the locking seat; the locking pin shafts on the rotary locking devices are respectively inserted into the first positioning pin holes and the second positioning pin holes which are in one-to-one corresponding positions, so that the relative positions of the upper beam layer and the lower beam layer are fixed.
Further, the slewing bearing is a single-row four-point contact ball type slewing bearing or a single-row crossed roller type slewing bearing.
Furthermore, each rotary locking device also comprises a pin shaft chain, one end of the pin shaft chain is fixed on the locking pin shaft, and the other end of the pin shaft chain is fixed on the locking seat.
Furthermore, the sliding mechanism comprises two strip-shaped sliding positioning plates, a sliding seat and a plurality of sliding seat pin shafts; the two strip-shaped sliding positioning plates are symmetrically arranged and fixed at the end parts of the suspension arms at the two sides of the lower beam layer, and a plurality of first radial fixing holes which correspond to one another one by one are respectively formed in the two strip-shaped sliding positioning plates; a through groove for installing a steel wire rope is arranged in the middle of the sliding seat, and the bottom of the groove is in an arched slope shape; a plurality of second radial fixing holes are formed in the side wall of the bottom end of the sliding seat at intervals, and the forming direction of the radial fixing holes is consistent with that of the through groove; the sliding seat is arranged between the two strip-shaped sliding positioning plates, and the setting position of the sliding seat is fixed by inserting a plurality of sliding seat pin shafts into two first radial through holes and one second radial through hole which are communicated one by one correspondingly.
Further, the groove wall top surface of the through groove both sides of the sliding seat is symmetrically provided with two lug plates with radial through holes at the centers, and two rope blocking rods are inserted into the radial through holes of the lug plates and are limited between the two lug plates through nuts screwed at the two ends of the rope blocking rods.
Furthermore, the upper beam layer is composed of a first middle supporting body and two short suspension arms which are formed by extending outwards from one group of opposite side walls of the first middle supporting body; the lower beam layer is composed of a second middle supporting body and two long suspension arms which are formed by extending outwards from one group of opposite side walls of the second middle supporting body; wherein the radial cross-sections of the first middle support body and the second middle support body are regular octagons, and the size of the second middle support body is equal to or slightly larger than that of the first middle support body.
Furthermore, two single-point hoisting bearing pin shafts are arranged on the side wall of the upper beam layer opposite to each short boom; two single-point hoisting bearing pin shafts are symmetrically arranged on the side wall of the middle part of the lower beam layer; and a plurality of pairs of lifting lugs are symmetrically arranged at the upper edge of the top surface of the first middle supporting body and the edge of the top surface of the second middle supporting body.
Furthermore, a crawling ladder is arranged on the adjacent side of each single-point hoisting bearing pin shaft of the upper beam layer and on the hole wall of the axial through hole of the single-point hoisting bearing pin shaft; and three crawling ladders are respectively arranged at intervals on the adjacent side and two sides of each single-point hoisting bearing pin shaft on the lower beam layer.
Furthermore, a plurality of supporting bases are arranged on the bottom surface of the middle supporting body of the lower beam layer at intervals along the circumferential direction.
Compared with the prior art, the large-scale variable-diameter rotatable hanging beam realizes the adjustment of the hanging distance through the sliding seats arranged at the two ends of the lower beam, so that the sizes of the hung objects are adapted; meanwhile, the rotary device and the rotary locking mechanism between the upper layer beam and the lower layer beam are matched with each other, so that the rotatable adjustment of the hoisting object in the hoisting working process is realized.
Drawings
Fig. 1 is a side view of a large-sized variable-diameter rotatable suspension beam of the present invention;
fig. 2 is a top view of the large-sized variable-diameter rotatable hanging beam of the present invention;
fig. 3 is a top view of the upper beam of the large-sized variable-diameter rotatable hanging beam of the present invention;
fig. 4 is a top view of the lower beam of the large-sized variable-diameter rotatable hanging beam of the present invention;
fig. 5 is a schematic structural view of a rotating mechanism of the large-sized diameter-variable rotatable hanging beam of the present invention;
fig. 6 is a schematic structural view of the sliding seat of the large-sized diameter-variable rotatable hanging beam of the present invention;
fig. 7 is a side view of the sliding seat of the large-sized variable-diameter rotatable hanging beam of the present invention.
Detailed Description
The present invention will be further described with reference to the following drawings and specific examples, but the following examples are by no means limiting the present invention.
As shown in fig. 1 and 2, the large-sized variable-diameter rotatable hanging beam comprises an upper beam layer 1, a lower beam layer 2, a rotating mechanism arranged between the upper beam layer 1 and the lower beam layer 2, and two sliding mechanisms 5 respectively positioned on the lower beam layer 2.
As shown in fig. 2 and 3, the upper beam layer 1 is composed of a first middle support and two short suspension arms extending outward from a set of opposite side walls of the first middle support; wherein, first middle part supporter is a radial cross-section for the support body structure of regular octagon, and has seted up circular through-hole along the axial from the center.
As shown in fig. 2 and 4, the lower beam layer 2 is composed of a second middle support and two long suspension arms extending outwards from a set of opposite side walls of the second middle support; the second middle support body is also a frame body structure with a regular octagonal radial cross section, the size of the second middle support body is slightly larger than that of the first middle support body of the upper beam layer 1, and the radial cross section of the second middle support body is also a regular octagon.
As shown in fig. 1, the upper beam layer 1 and the lower beam layer 2 are coaxially arranged and are rotatably connected through the rotating device 3, so that the upper beam layer 1 and the lower beam layer 2 can rotate relatively. Wherein, the first middle part supporter on upper beam layer 1 and the second middle part supporter on lower beam layer 2 all adopt radial cross-section to be regular octagon's support body structure to realize its and slewing mechanism between the joint strength, simultaneously in the manufacture process, the steel sheet is easily bent the shaping, is convenient for produce manufacturing.
As shown in fig. 5, the turning mechanism includes one turning device 3 and four turning-lock devices 4; wherein the content of the first and second substances,
the slewing device 3 includes a slewing bearing 301, an inner race 302, and an outer race 303; specifically, the slewing bearing 301 is composed of an inner ring, an outer ring and rolling bodies arranged between the inner ring and the outer ring, and a single-row cross roller type slewing bearing can be adopted, so that the requirements of simultaneously bearing larger axial and radial loads and overturning moment are met; the inner race 302 is a ring-shaped structure, and the inner wall of the bottom end of the inner race extends towards the center to form an annular chassis; the top of the inner race 302 is welded on the bottom surface of the upper beam layer 1, and the bottom of the inner race 302 fixes the inner race 302 on the inner ring of the slewing bearing 301 through a plurality of bolts uniformly distributed on the annular chassis along the circumferential direction; the outer race 303 is of an annular body structure, and an annular top disc is formed by extending the inner wall of the top end of the outer race to the center; the bottom of the outer race 303 is welded on the top surface of the lower beam layer 2, and the top of the outer race 303 fixes the outer race 303 on the outer ring of the slewing bearing 301 through a plurality of bolts uniformly distributed on the annular top disc along the circumferential direction;
a plurality of first positioning pin holes 304 are further formed in the annular chassis of the inner race 302 along the circumferential direction, and an included angle formed by connecting the circle centers of two adjacent first positioning pin holes 304 to the circle center of the annular chassis is 10 degrees;
the four rotation locking devices 4 are uniformly distributed along the circumferential direction and are all positioned on the inner side of the inner race 302; specifically, each swing lock device 4 includes a lock base 401, a lock pin 403, and a pin chain 402; the locking seat 401 is a cylindrical structure, and a second positioning pin hole is formed downwards from the center of the top surface of the locking seat along the axial direction; the locking seat 401 is welded and fixed on the inner side of the outer race 303, and a second positioning pin hole on the locking seat is matched with the opening position of the first positioning pin hole 304 on the annular chassis of the inner race 302, so that the four locking pin shafts 403 can be respectively and simultaneously inserted into any four groups of first positioning pin holes 304 and second positioning pin holes which are positioned in one-to-one correspondence positions along the axial direction, and the relative position between the inner ring and the outer ring of the slewing bearing 301 is fixed; one end of the pin chain 402 is fixed on the locking seat 401, and the other end is fixed on the locking pin 403, so that the locking pin 403 is prevented from being lost in the using process. The diameter of the locking pin 403 is smaller than or equal to the inner diameter of the first positioning pin hole 304 and the second positioning pin hole.
As shown in fig. 6 and 7, two glide mechanisms 5 are respectively provided at the arm end positions of the two long booms of the lower beam layer 2; specifically, each sliding mechanism 5 comprises two strip-shaped sliding positioning plates 501, a sliding seat 503 and four sliding seat pin shafts 502; wherein the content of the first and second substances,
two strip-shaped sliding positioning plates 501 are symmetrically arranged at the edge of the opposite side of the boom end along the extension direction of the long boom and are welded and fixed on the top surface of the boom; a plurality of first radial fixing holes are respectively formed in the two strip-shaped sliding positioning plates 501 in a one-to-one correspondence manner;
the sliding seat 503 is composed of a base and a steel wire rope through groove 503a arranged in the middle of the base, the bottom of the steel wire rope through groove 503a is in an arched slope shape, so that the uniform load stress of the steel wire rope is guaranteed, meanwhile, two lug plates 503d with radial through holes at the centers are symmetrically arranged on the top surfaces of the groove walls at the two sides of the through groove, a rope blocking rod 504 is inserted into the radial through holes of the two lug plates 503d, and the rope blocking rod 504 is limited between the two lug plates 503d through nuts screwed at the two ends of the rope blocking rod, so that the steel wire rope is prevented from separating from; three reinforcing ribs 504b are respectively arranged on the outer sides of the groove walls of the steel wire rope through grooves 503a, and the three reinforcing ribs positioned on the two sides are symmetrically arranged to enhance the strength of the sliding seat 503; meanwhile, two sliding seat lifting lugs 504e are symmetrically arranged on the two reinforcing ribs 504b positioned in the middle position, so that when the sliding seat 503 is lifted and adjusted inwards without condition, the two sliding seat lifting lugs 504e can be used for matching with a chain block to carry out traction adjustment on the sliding seat;
four second radial fixing holes 504c are formed in the side wall of the bottom end of the sliding seat 503 at intervals, the forming direction of the four second radial fixing holes 504c is the same as that of the through groove, and the distance between every two adjacent second radial fixing holes 504c is the same as that between every two adjacent first radial fixing holes; the seat 503 that slides sets up between two bars locating plate 501 that slides, and can be through in inserting four seat round pin axles 502 respectively one-to-one and forming two first radial fixed orificess and a second radial fixed orifices 504c that link up, the realization is fixed the seat and the relative position between two bars locating plate 501 that slide, this connected mode also can realize that the position of the seat 503 that slides is adjustable between two bars locating plate 501 that slides simultaneously, realize promptly that the interval between two seats that slide is adjustable, in order to suit with the size of hanging the thing.
As shown in fig. 1, two single-point hoisting bearing pin shafts 8 are arranged on the side wall of the upper beam layer 1 opposite to each short boom; two single-point hoisting bearing pin shafts 8 are symmetrically arranged on the side wall of the middle part of the lower beam layer 2; the single-point hoisting bearing pin shaft 8 is convenient to use the hoisting beam on the occasion of single-point hoisting of objects, and the application range of the hoisting beam is further expanded.
The top surface upper edge department of first middle part supporter and the top surface border department of second middle part supporter symmetry and interval are provided with two pairs of lugs 9, the hoist and mount of underbeam layer in installation and transportation of being convenient for.
Meanwhile, the adjacent side of each single-point hoisting bearing pin shaft 8 of the upper beam layer 1 and the hole wall of the axial through hole are respectively provided with one crawling ladder 7, and the adjacent side and two sides of each single-point hoisting bearing pin shaft 8 of the lower beam layer 2 are respectively provided with three crawling ladders 7 at intervals, so that the large-scale variable-diameter rotatable hanging beam is convenient for operators to operate and adjust in the loading and unloading process and the hanging object hoisting process. In addition, four support bases 6 are provided at intervals in the circumferential direction on the bottom surface of the middle support body of the lower beam layer 2.
The use method of the large-scale variable-diameter rotatable hanging beam comprises the following steps:
s1, transporting each part of the large-scale variable-diameter rotatable hanging beam to a hoisting site and assembling;
s2, connecting a steel wire rope on a lifting hook of the lifting machine with four single-point lifting bearing pin shafts on an upper beam;
s3, symmetrically moving the sliding seats at the two ends, adjusting the distance between the sliding seats to enable the distance to correspond to the diameter of the hoisted object, and timely inserting the pin shafts of the sliding seats into the positioning holes after the adjustment is finished so as to fix the sliding seats at the appointed proper positions;
s4, connecting a suspension buckle of a steel wire rope arranged on the sliding seat with a lifting lug of a lifted object;
s5, checking whether the rotary locking device is locked in place, and ensuring that relative rotation except for construction design does not occur in the hoisting process;
s6, carrying out lifting operation, wherein in the process, constructors stand on a middle platform of the slewing bearing;
s7, after the crane is lifted to the height of the angle to be adjusted, the crane stops the hoisted object statically, constructors pull out the pin shaft of the rotary locking device, adjust the angle of the hoisted object to the designed angle by using an auxiliary crane or auxiliary machinery, and then the constructors standing on the middle platform of the rotary support are fixed by the pin shaft of the rotary locking device again;
and S8, continuing to lift, and after the steel wire rope is lifted to the designed position, loosening the steel wire rope at the lifting lug of the lifting object by constructors, and finishing the lifting at this time.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (10)
1. A large-scale diameter-variable rotary hanging beam is characterized by comprising an upper beam layer (1), a lower beam layer (2), a rotating mechanism arranged between the upper beam layer (1) and the lower beam layer (2), and two sliding mechanisms (5) respectively positioned on the lower beam layer (2); wherein the turning mechanism comprises a turning device (3) and a plurality of turning locking devices (4); the upper beam layer (1) and the lower beam layer (2) are coaxially arranged and are in rotary connection through the rotating device (3), so that the upper beam layer (1) and the lower beam layer (2) can rotate relatively; the plurality of rotary locking devices (4) are uniformly distributed on the adjacent side of the rotary device (3) along the circumferential direction, and each rotary locking device (4) enables the relative position between the upper beam layer (1) and the lower beam layer (2) to be fixed by arranging a locking pin shaft (403) on each rotary locking device (4) between the rotary device (3) and the rotary locking device (4); the two sliding mechanisms (5) are respectively movably arranged at two ends of the suspension arm of the lower beam layer (2), so that the distance between the two sliding mechanisms can be adjusted to be suitable for the size of a suspended object.
2. A large variable diameter rotatable hanging beam according to claim 1, characterized in that said slewing device (3) comprises a slewing bearing (301), an inner race (302) and an outer race (303); the inner race (302) is of an annular body structure, and the inner wall of the bottom end of the inner race extends towards the center to form an annular chassis; the top of the inner race (302) is welded on the bottom surface of the upper beam layer (1), and the inner race (302) is fixed on the inner ring of the slewing bearing (301) at the bottom through a plurality of bolts uniformly distributed on the annular chassis along the circumferential direction; the outer race (303) is of an annular body structure, and the inner wall of the top end of the outer race extends towards the center to form an annular top disc; the bottom of the outer race (303) is welded on the top surface of the lower beam layer (2), and the top of the outer race (303) is used for fixing the outer race (303) on the outer ring of the slewing bearing (301) through a plurality of bolts uniformly distributed on the annular top disc along the circumferential direction; a plurality of first positioning pin holes (304) are further formed in the annular chassis of the inner race (302) along the circumferential direction;
a plurality of rotary locking devices (4) are uniformly distributed on the inner side of the inner race (302) along the circumferential direction; each rotary locking device (4) comprises a locking seat (401) and a locking pin shaft (403); the locking seat (401) is fixedly welded on the inner side of the outer race (303) and is of a cylindrical structure with a second positioning pin hole formed in the top surface; the relative positions of the upper beam layer (1) and the lower beam layer (2) are fixed by inserting the locking pin shafts (403) on the rotary locking devices (4) into the first positioning pin holes (304) and the second positioning pin holes which are in one-to-one corresponding positions respectively.
3. A large variable diameter rotatable hanging beam according to claim 2, characterized in that the slewing bearing (301) is a single row four point contact ball slewing bearing or a single row cross roller slewing bearing.
4. A large variable diameter rotatable hanging beam according to claim 2, characterized in that each said rotary locking device (4) further comprises a pin chain (402) with one end fixed on said locking pin (403) and the other end fixed on said locking seat (401).
5. The large-scale variable-diameter rotatable hanging beam according to claim 1, characterized in that the sliding mechanism (5) comprises two strip-shaped sliding positioning plates (501), a sliding seat (503) and a plurality of sliding seat pin shafts (502); the two strip-shaped sliding positioning plates (501) are symmetrically arranged and fixed at the end parts of the suspension arms at two sides of the lower beam layer (2), and a plurality of first radial fixing holes in one-to-one correspondence are respectively formed in the two strip-shaped sliding positioning plates (501); a through groove for installing a steel wire rope is formed in the middle of the sliding seat (503), and the bottom of the groove is in an arched slope shape; a plurality of second radial fixing holes are formed in the side wall of the bottom end of the sliding seat (503) at intervals, and the forming direction of the radial fixing holes is consistent with that of the through grooves; the sliding seat (503) is arranged between the two strip-shaped sliding positioning plates (501), and the setting position of the sliding seat (503) is fixed by inserting a plurality of sliding seat pin shafts (502) into two first radial through holes and one second radial through hole which are communicated one by one respectively.
6. The large-scale variable-diameter rotatable hanging beam according to claim 5, characterized in that two lug plates with a radial through hole at the center are symmetrically arranged on the top surfaces of the groove walls at both sides of the through groove of the sliding seat (503), a rope blocking rod (504) is inserted into the radial through hole of the two lug plates, and the rope blocking rod (504) is limited between the two lug plates by nuts screwed at both ends of the rope blocking rod.
7. The large-scale variable-diameter rotatable hanging beam according to any one of claims 1 to 6, characterized in that the upper beam layer (1) is composed of a first middle support body and two short hanging arms formed by extending outwards from a set of opposite side walls of the first middle support body; the lower beam layer (2) is composed of a second middle supporting body and two long suspension arms which are formed by extending outwards from one group of opposite side walls of the second middle supporting body; wherein the radial cross-sections of the first middle support body and the second middle support body are regular octagons, and the size of the second middle support body is equal to or slightly larger than that of the first middle support body.
8. The large-scale variable-diameter rotatable hanging beam according to claim 7, characterized in that two single-point hoisting bearing pin shafts (8) are arranged on the opposite side walls of each short hanging arm of the upper beam layer (1); two single-point hoisting bearing pin shafts (8) are symmetrically arranged on the side wall of the middle part of the lower beam layer (2); and a plurality of pairs of lifting lugs (9) are symmetrically arranged at the upper edge of the top surface of the first middle supporting body and the edge of the top surface of the second middle supporting body.
9. The large-scale variable-diameter rotatable hanging beam according to claim 8, characterized in that a ladder (7) is arranged on the adjacent side of each single-point hoisting bearing pin shaft (8) of the upper beam layer (1) and the hole wall of the axial through hole; and three crawling ladders (7) are respectively arranged at intervals on the adjacent side and two sides of each single-point hoisting bearing pin shaft (8) of the lower beam layer (2).
10. The large-scale variable-diameter rotatable hanging beam according to any one of claims 1 to 6, characterized in that a plurality of bases (6) are arranged on the bottom surface of the middle supporting body of the lower beam layer (2) at intervals along the circumferential direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921223643.7U CN211034856U (en) | 2019-07-31 | 2019-07-31 | Large-scale diameter-variable rotatable hanging beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921223643.7U CN211034856U (en) | 2019-07-31 | 2019-07-31 | Large-scale diameter-variable rotatable hanging beam |
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| CN211034856U true CN211034856U (en) | 2020-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436326A (en) * | 2019-07-31 | 2019-11-12 | 天津港航工程有限公司 | A kind of large size reducing rotary type hanging beam |
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2019
- 2019-07-31 CN CN201921223643.7U patent/CN211034856U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436326A (en) * | 2019-07-31 | 2019-11-12 | 天津港航工程有限公司 | A kind of large size reducing rotary type hanging beam |
| CN110436326B (en) * | 2019-07-31 | 2024-04-26 | 天津港航工程有限公司 | Large-scale rotatable hanging beam with variable diameter |
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