CN221625645U - Large-angle pitching cable laying portal frame - Google Patents

Abstract

The utility model relates to the technical field of cable laying ships, in particular to a large-angle pitching cable laying portal frame which comprises a portal frame with a transverse moving roller, wherein the bottom of a stand column on the portal frame is coaxially hinged on a base; the outer side of the upright post along the transverse direction a luffing cylinder is arranged; the hinge points of the upper ends of the two amplitude variation oil cylinders and the upright post are in the same transverse direction, and the hinge points of the lower ends of the two amplitude variation oil cylinders and the base are staggered with each other along the longitudinal direction; when one of the amplitude-variable oil cylinders reaches the dead point position, the other amplitude-variable oil cylinder can continuously drive the portal frame to move, so that the overall amplitude-variable angle of the portal frame is effectively improved, the maximum amplitude-variable angle can reach 150 degrees, and meanwhile, the whole structure is simple, the manufacturing cost is reduced, and the device is suitable for cable laying equipment and other heavy equipment devices of a cable laying ship.

Description

Large-angle pitching cable laying portal frame

Technical Field

The utility model relates to the technical field of cable laying ships, in particular to a large-angle pitching cable laying portal frame.

Background

Submarine cabling engineering is recognized by countries around the world as the most complex and difficult large-scale engineering. One of the difficulties is how to safely and effectively hoist, retract, lay, dig a trench and other equipment devices in the cable laying operation process. At present, the most effective lifting device is a portal crane, and the maximum pitching angle of most portal cranes can only reach about 90 degrees, so that the lifted object is higher from the sea surface and is closer to the ship board when being retracted, and in addition, the lifted object can be unstable due to shaking of the ship caused by factors such as stormy waves and the like in offshore operation, the lifted object cannot be retracted safely and effectively, and even the damage of equipment and the occurrence of safety accidents can be caused. At present, key technologies of a gantry crane retraction system are still monopolized abroad.

The prior art is as in the horizontal moving device for the marine portal crane provided by the Chinese patent No. 204980921U, the portal frame comprises a cross beam and upright posts connected at two ends of the cross beam, the portal frame drives deflection through a turnover oil cylinder at the front end of the portal frame, but the front and rear amplitude variation angles of the portal frame are limited, and a sliding frame with a cable frame is arranged for lifting equipment to prevent the suspended equipment from swinging left and right. Because the cable frame is of a fixed structure, the condition that the suspended object shakes back and forth can also occur.

On the basis of the prior art, the Chinese patent No. 115995776A provides an A-shaped frame device for laying and recycling a submarine cable buried plow, which drives a traversing roller to reciprocate on a portal beam through an oil cylinder so as to be beneficial to improving the cable laying effect, the traversing roller is also provided with a buffer frame, the buffer frame is provided with a swinging stopping oil cylinder for adjustment, the buffer frame can passively follow the portal action, the buried plow is maintained in a dead weight vertical state as far as possible, and the damping of the corresponding hydraulic oil cylinder is increased according to actual conditions so as to resist the longitudinal swinging caused by external loads such as wind load; meanwhile, the whole portal is additionally provided with a four-bar structure on the basis of the existing overturning oil cylinder, so that the portal amplitude angle can reach 150 degrees, but the whole manufacturing cost is higher.

Therefore, in view of the large-angle amplitude of the cable laying portal and the submarine cable laying requirement, it is highly desirable to design a cable laying portal for hoisting equipment, which is different from the prior art principle, so as to break monopoly of foreign technology.

Disclosure of utility model

The utility model aims to overcome the defects and shortcomings in the prior art, and provides the large-angle pitching cable laying portal frame which can improve the amplitude variation angle of the portal frame while lifting equipment.

In order to achieve the above purpose, the utility model provides a large-angle pitching cable laying portal frame, which comprises a portal frame with a traversing roller, wherein the bottom of a stand column on the portal frame is coaxially hinged on a base; the outer side of the upright post in the transverse direction is provided with an amplitude variation oil cylinder; the hinge points of the upper ends of the two amplitude variation oil cylinders and the upright post are in the same transverse direction, and the hinge points of the lower ends of the two amplitude variation oil cylinders and the base are staggered with each other along the longitudinal direction; when one of the luffing cylinders reaches a dead point position, the other luffing cylinder can continuously drive the portal frame to move.

Further, the cross beam on the portal frame is connected with the upright post by adopting a flange.

Further, the transverse moving roller comprises a sliding roller which coaxially and linearly slides and is sleeved on the cross beam, and the outer part of the sliding roller is coaxially sealed and is rotatably connected with the roller; the middle of the roller is coaxially provided with a concave ring groove for winding the cable; ear plates are arranged at two ends of the roller and are bolted on the sliding cylinder; the lug plate is configured to be connected with a driving mechanism through a traction rope and drive the sliding cylinder to move transversely; the driving mechanism is arranged on the upright post.

Further, a wear-resistant bushing is arranged between the sliding cylinder and the cross beam; the wear-resistant bushing is coaxially and fixedly arranged on the cross beam; a plurality of transverse flat keys are uniformly distributed on the wear-resistant lining; and a key groove matched with the flat key is formed in the inner wall of the sliding cylinder.

Further, the wear-resistant lining comprises a plurality of battens which are uniformly welded on the cross beam.

Further, at least three sliding sleeves are uniformly distributed in the sliding cylinder, and key grooves matched with the flat keys are formed in the inner walls of the sliding sleeves.

Further, the roller comprises a ring body with V-shaped ring grooves, the outer sides of two ends of the ring body are welded with a cylinder body, the end face of the cylinder body is provided with an end plate, and the inner side of the end plate is provided with a groove-shaped ring for placing a sealing ring; the ring body, the cylinder body, the end plate and the groove-shaped ring are welded into a whole through a plurality of reinforcing ribs; the inner wall of the ring body is coaxially bolted with a bearing bush, and the bearing bush is sleeved on the sliding cylinder.

Further, the drive mechanism is on the same side as the ear plate; the driving mechanism comprises a fixed pulley A, a rope locking seat and a fixed pulley B pushed by a traction oil cylinder; the fixed pulley A, the rope locking seat and the cylinder body of the traction cylinder are all fixed on the upright post; the fixed pulley B is positioned right below the fixed pulley A; one end of the traction rope is fixed on the lug plate, and the other end of the traction rope sequentially surrounds the fixed pulley A and the fixed pulley B along the transverse direction and the vertical direction and is fixed on the rope locking seat; the traction cylinder is configured such that when extended, the fixed sheave B approaches the fixed sheave a.

Further, the outer wall of the sliding cylinder is also provided with a U-shaped protection frame through which the cable passes; the U-shaped protection frame is used for preventing the cable from being thrown out to hurt people after being broken.

Further, an anti-shaking frame is further arranged on the outer wall of the sliding cylinder; the anti-shake frame comprises an upper swing frame and a lower swing frame; two ends of the top of the upper swing frame are hinged to the supporting leg A, two sides of the top of the upper swing frame are hinged to the adjusting oil cylinders A, and the other ends of the adjusting oil cylinders A are hinged to the supporting leg B; the bottom of the upper swing frame is hinged with the top of the lower swing frame, and an adjusting oil cylinder B is hinged between the two sides of the upper swing frame and the lower swing frame; the bottom of the lower swing frame is transversely provided with a double-cable stabilizer bar and a single-cable stabilizer bar, and the middle part of the double-cable stabilizer bar is recessed to form a trapezoid groove; the support leg A and the support leg B are bolted on the sliding cylinder at right angles, and the support leg B is positioned right below the sliding cylinder.

Compared with the prior art, the utility model has the beneficial effects that: the luffing cylinders on the two sides of the portal frame upright post control the portal frame to do pitching motion around the bottom twisted point, so that the height of a lifted object from the sea surface and the distance from the ship board are effectively reduced during lifting and releasing; the gravity center of the gantry is lowered during towing operation, and acting force given by the cable when the cable passes through the gantry beam is reduced; meanwhile, the overall manufacturing cost is reduced, the cable laying ship is suitable for cable laying equipment and other heavy equipment devices, and the maximum pitching angle can reach 150 degrees.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a right side view of fig. 2.

Fig. 4 is a schematic structural view of the anti-sloshing frame of fig. 2.

Fig. 5 is a schematic cross-sectional view of the traversing roller of fig. 1.

Fig. 6 is a schematic diagram of the use of the anti-sway brace of the present utility model.

Fig. 7 is a schematic diagram of back and forth swinging of the gantry in the present utility model.

Fig. 8 is a schematic view of the bottom hinge position of the column of fig. 1.

Wherein: 1. a portal frame; 2. a base; 3. a traversing roller; 4. a luffing cylinder; 5. an anti-shake frame; 6. a driving mechanism; 11. a cross beam; 12. a column; 13. a hall sensor; 14. a bracket; 15. a waterproof box; 16. a coupling; 31. a slide cylinder; 32. a roller; 33. ear plates; 34. wear-resistant bushings; 35. a flat key; 36. a sliding sleeve; 37. a U-shaped protective frame; 51. an upper swing frame; 52. a lower swing frame; 53. a double cable stabilizer bar; 54. a single cable stabilizer bar; 55. adjusting an oil cylinder A; 56. an oil cylinder B is adjusted; 57. a supporting leg A; 58. a supporting leg B; 61. a fixed pulley A; 62. a fixed pulley B; 63. a traction cylinder; 64. a locking band; 65. a connecting seat; 66. a rope locking seat; 321. a ring body; 322. a cylinder; 323. an end plate; 324. a slotted ring; 325. reinforcing ribs; 326. bearing bush.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Example 1

Referring to fig. 1 to 8, the utility model provides a large-angle pitching cable laying portal frame, which comprises a portal frame 1 with a traversing roller 3, wherein the bottom of a stand column 12 on the portal frame 1 is coaxially hinged on a base 2; the outer side of the upright 12 in the transverse direction a luffing cylinder 4 is arranged; the hinge points of the upper ends of the two amplitude variation oil cylinders 4 and the upright post 12 are in the same transverse direction, and the hinge points of the lower ends of the two amplitude variation oil cylinders 4 and the base 2 are staggered with each other along the longitudinal direction; when one of the luffing cylinders 4 reaches the dead point position, the other luffing cylinder 4 can continuously drive the portal frame 1 to move.

As shown in fig. 5, two luffing cylinders 4 drive the portal frame to swing back and forth towards the bow and the stern, in the process, one luffing cylinder 4 and the upright post 12 can be parallel to reach a dead point position, no acting force is applied to the portal frame 1 any more, and the other luffing cylinder 4 continuously acts on the portal frame 1, so that the portal frame 1 cannot stop swinging due to the fact that the luffing cylinder 4 reaches the dead point position, meanwhile, the luffing angle of the portal frame 1 is improved, and can reach 150 degrees, namely, the portal frame 1 swings 75 degrees towards the bow and the stern with reference to the vertical direction, and details are not repeated.

The cross beam 11 and the upright post 12 on the portal frame 1 are connected by adopting flanges so as to be convenient to detach and replace.

As one embodiment of the utility model, the traversing roller 3 comprises a sliding roller 31 coaxially and linearly sliding and sleeved on the cross beam 11, and the outer wall of the sliding roller 31 is coaxially sealed and rotatably connected with a roller 32; the outer wall of the drum 32 is coaxially provided with a concave ring groove for winding the cable; ear plates 33 are arranged at two ends of the roller 32, and the ear plates 33 are bolted on the sliding drum 31; the ear plate 33 is connected with the driving mechanism 6 through a traction rope and drives the sliding drum 31 to move transversely; the drive mechanism 6 is provided on the upright 12.

In use, as the cable is drawn through the traversing drum 3, the cable engages the concave ring groove of the drum 32. When the cable laying equipment is hung and the cable towing equipment is operated, the roller 32 can roll along with the winding and unwinding of the towing cable, so that the friction resistance of the towing cable is reduced, and the service life and the safety coefficient of the towing cable are prolonged.

During the dragging operation of the gantry 1, the gantry 1 is in the maximum elevation state, namely the limit position in the side, and the beam position is the lowest at the moment, so that the acting force of the dragging steel cable on the traversing roller 3 is small.

As an embodiment of the utility model, a wear-resistant lining 34 is arranged between the sliding cylinder 31 and the cross beam 11; the wear-resistant bush 34 is coaxially and fixedly arranged on the cross beam 11; a plurality of transverse flat keys 35 are uniformly distributed on the wear-resistant lining 34; the inner wall of the slide 31 is provided with a keyway matching the flat key 35. The overall service life is prolonged through the wear-resistant lining 34, and the wear-resistant lining 34 is made of a wear-resistant plate; the straight sliding of the sliding drum 31 is ensured by the flat key 35, and the shearing resistance of the sliding drum 31 is improved.

The wear-resistant lining 34 may be formed by a plurality of strips uniformly welded on the cross beam 11, and will not be described in detail.

At least three sliding sleeves 36 can be uniformly distributed on the inner wall of the sliding barrel 31, and key grooves matched with the flat keys 35 are formed on the inner wall of the sliding sleeves 36. The sliding sleeve 36 may be welded on the inner wall of the sliding sleeve 31, or may be assembled with the inner wall of the sliding sleeve 31 by interference fit, which is not described in detail.

As one embodiment of the utility model, the roller 32 comprises a ring body 321 with a V-shaped ring groove, the outer sides of two ends of the ring body 321 are welded with a cylinder body 322, the end surface of the cylinder body 322 is provided with an end plate 323, and the inner side of the end plate 323 is provided with a groove-shaped ring 324 for placing a sealing ring; the ring body 321, the cylinder 322, the end plate 323 and the groove-shaped ring 324 are welded into a whole through a plurality of reinforcing ribs 325; the inner wall of the ring 321 is coaxially bolted with a bearing bush 326, and the bearing bush 326 is sleeved on the slide cylinder 2.

Through adopting the axle bush 326 for cylinder 323 can rotate relative smooth section of thick bamboo 31, through the contact of sealing washer and smooth section of thick bamboo 31, can prevent that outside liquid from carrying out the inside and causing the corruption of cylinder 32, improve the life of cylinder 32, overall structure is compact and satisfy intensity of use, reduced manufacturing cost.

As an embodiment of the utility model, the drive mechanism 6 is on the same side as the ear plate 33; the driving mechanism 6 comprises a fixed pulley A61, a rope locking seat 66 and a fixed pulley B62 pushed by a traction oil cylinder 63; the fixed pulley A61 and the rope locking seat 66 are arranged at the top of the upright post 12; the body of the traction cylinder 63 is fixed on the upright post 12; the fixed pulley B62 is positioned right below the fixed pulley A61; one end of the traction rope is fixed on the lug plate 33, and the other end sequentially surrounds the fixed pulley A61 and the fixed pulley B62 along the transverse direction and the vertical direction and is fixed on the rope locking seat 66; when the traction cylinder 63 extends, the fixed sheave B62 can move toward the fixed sheave a 61.

The top of the traction cylinder 63 is fastened to the upright 12 by a locking band 64; the bottom of the traction cylinder 63 is hinged to a connecting seat 65, and the connecting seat 65 is fixed on the upright post 12, which is not described in detail.

The pulling rope is controlled to pull the traversing roller 3 to move left and right along the cross beam 11 through the extension and contraction of the pulling oil cylinder 63. When the laid cable is conveyed and slides into the sea water from one side of the stern, the cable laying equipment lifted by the towing cable can move to the position above the laid cable on the other side of the stern through the cruise ship; meanwhile, the moving range of the cruise ship is enlarged and the safety performance is improved under the condition of ensuring that the length of the cross beam 11 is not changed.

As an embodiment of the utility model, the outer wall of the sliding drum 31 is also provided with a U-shaped protective frame 37 through which the cable passes; the U-shaped protective frame 37 prevents the cable from being thrown out after breakage, especially by operators in the field.

In addition, the outer wall of the sliding drum 31 may be further provided with an anti-shaking frame 5, the anti-shaking frame 5 includes an upper swing frame 51, a lower swing frame 52, a double-cable stabilizer 53 and a single-cable stabilizer 54, two ends of the top of the upper swing frame 51 are hinged on the sliding drum 31, the bottom of the upper swing frame 51 is hinged with the top of the lower swing frame 52, the bottom of the lower swing frame 52 is transversely provided with the double-cable stabilizer 53 and the single-cable stabilizer 54, the middle of the double-cable stabilizer 53 is recessed to form a trapezoid groove, and the groove wall of the trapezoid groove is obliquely arranged, so that the trapezoid groove is in a structure with a large upper part and a small lower part. An adjusting oil cylinder A55 is hinged between the two sides of the upper swing frame 51 and the sliding cylinder 31, and an adjusting oil cylinder B56 is hinged between the two sides of the upper swing frame 51 and the lower swing frame 52.

The sliding cylinder 31 is provided with a supporting leg A57 and a supporting leg B58 which are distributed at right angles, wherein the supporting leg A57 is against the lug plate 33, and the supporting leg B58 is positioned right below the sliding cylinder 31; the upper swing frame 51 is hinged with the supporting leg A57, and two ends of the adjusting oil cylinder A55 are respectively hinged with the upper swing frame 51 and the supporting leg B58. As shown in fig. 4, when the double-cable is used, the two cables are respectively abutted to the outer groove wall of the trapezoid groove, so that the suspended object is effectively prevented from shaking, the working efficiency, the service life and the safety performance of the cable laying door frame are improved, and the cable laying door frame is suitable for more complex operation sea conditions.

As shown in fig. 8, a hall sensor 13 may be further disposed at the bottom of the upright post 12 of the gantry 1, the hall sensor 13 is connected with a hinged spindle at the bottom of the upright post 12 by using a coupling 16, the hall sensor 13 is mounted on a bracket 14, the hall sensor 13 is wrapped by using a waterproof box 15, and the bracket 14 is fixed on the upright post 12, so that the rotation angle of the gantry 1 is detected by the hall sensor 13 to control the adjusting cylinder a55 and the adjusting cylinder B56, so that the suspended object is in a vertical state, and the cable laying is facilitated.

The present utility model may be summarized in other specific forms without departing from the spirit or essential characteristics thereof. The above-described embodiments of the utility model are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

1. The large-angle pitching cable laying portal frame comprises a portal frame (1) with a transverse moving roller (3), and is characterized in that the bottom of a stand column (12) on the portal frame (1) is coaxially hinged on a base (2); the outer side of the upright post (12) along the transverse direction is provided with an amplitude variation oil cylinder (4); the hinge points of the upper ends of the two amplitude variation oil cylinders (4) and the upright post (12) are in the same transverse direction, and the hinge points of the lower ends of the two amplitude variation oil cylinders (4) and the base (2) are staggered in the longitudinal direction; when one of the luffing cylinders (4) reaches a dead point position, the other luffing cylinder (4) can continuously drive the portal frame (1) to move.

2. The high-angle pitching cabling gantry according to claim 1, characterized in that the cross beam (11) on the gantry (1) is flanged to the upright (12).

3. The large-angle pitching cable laying portal according to claim 2, wherein the traversing roller (3) comprises a sliding cylinder (31) coaxially and linearly sliding and sleeved on the cross beam (11), and the outer part of the sliding cylinder (31) is coaxially sealed and rotatably connected with a roller (32); the middle of the roller (32) is coaxially provided with a concave ring groove for winding the cable; ear plates (33) are arranged at two ends of the roller (32), and the ear plates (33) are bolted on the sliding cylinder (31); the lug plate (33) is configured to be connected with a driving mechanism (6) through a traction rope and drive the sliding cylinder (31) to move transversely; the driving mechanism (6) is arranged on the upright post (12).

4. A high angle pitch cabling portal according to claim 3, characterized in that a wear resistant bushing (34) is provided between the slide (31) and the cross beam (11); the wear-resistant bushing (34) is coaxially and fixedly arranged on the cross beam (11); a plurality of transverse flat keys (35) are uniformly distributed on the wear-resistant lining (34); the inner wall of the sliding cylinder (31) is provided with a key groove matched with the flat key (35).

5. The high angle pitch cabling portal of claim 4, wherein the wear bushing (34) comprises a plurality of slats welded uniformly to the cross beam (11).

6. The large-angle pitching cable laying portal according to claim 4, wherein at least three sliding sleeves (36) are uniformly distributed in the sliding barrel (31), and key grooves matched with the flat keys (35) are formed in the inner walls of the sliding sleeves (36).

7. A high angle pitch cable laying gantry according to claim 3, characterized in that the drum (32) comprises a ring body (321) with a V-shaped ring groove, a drum body (322) is welded on the outer side of two ends of the ring body (321), an end plate (323) is arranged on the end face of the drum body (322), and a groove-shaped ring (324) for placing a sealing ring is arranged on the inner side of the end plate (323); the ring body (321), the cylinder body (322), the end plate (323) and the groove-shaped ring (324) are welded into a whole through a plurality of reinforcing ribs (325); the inner wall of the ring body (321) is coaxially bolted with a bearing bush (326), and the bearing bush (326) is sleeved on the sliding cylinder (31).

8. A high angle pitch cabling mast according to claim 3, characterized in that the drive mechanism (6) is on the same side as the ear plate (33); the driving mechanism (6) comprises a fixed pulley A (61), a rope locking seat (66) and a fixed pulley B (62) pushed by a traction oil cylinder (63); the fixed pulley A (61), the rope locking seat (66) and the cylinder body of the traction cylinder (63) are fixed on the upright post (12); the fixed pulley B (62) is positioned right below the fixed pulley A (61); one end of the hauling rope is fixed on the lug plate (33), and the other end of the hauling rope sequentially surrounds the fixed pulley A (61) and the fixed pulley B (62) along the transverse direction and the vertical direction and is fixed on the rope locking seat (66); when the traction cylinder (63) is configured to extend, the fixed pulley B (62) approaches the fixed pulley A (61).

9. A high angle pitch cabling portal as claimed in claim 3, wherein the outer wall of the spool (31) is further provided with a U-shaped guard frame (37) through which the cable passes; the U-shaped protective frame (37) is used for preventing the cable from being thrown out to hurt people after being broken.

10. A high angle pitch cabling portal according to claim 3, characterized in that the outer wall of the slide tube (31) is also provided with an anti-sway brace (5); the anti-shake frame comprises an upper swing frame (51) and a lower swing frame (52); two ends of the top of the upper swing frame (51) are hinged to the supporting leg A (57), two sides of the top of the upper swing frame (51) are hinged to the adjusting oil cylinder A (55), and the other end of the adjusting oil cylinder A (55) is hinged to the supporting leg B (58); the bottom of the upper swing frame (51) is hinged with the top of the lower swing frame (52), and an adjusting oil cylinder B (56) is hinged between the two sides of the upper swing frame (51) and the lower swing frame (52); the bottom of the lower swing frame (52) is transversely provided with a double-cable stabilizer bar (53) and a single-cable stabilizer bar (54), and the middle part of the double-cable stabilizer bar (53) is recessed to form a trapezoid groove; the support leg A (57) and the support leg B (58) are bolted on the sliding cylinder (31) at right angles, and the support leg B (58) is positioned right below the sliding cylinder (31).