CN211769928U

CN211769928U - Floating crane shimmy damping device

Info

Publication number: CN211769928U
Application number: CN202020033665.3U
Authority: CN
Inventors: 张永涛; 黄灿; 王紫超; 刘洋; 陈斌; 朱浩; 周仁忠; 刘修成
Original assignee: CCCC Second Harbor Engineering Co
Current assignee: CCCC Second Harbor Engineering Co
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-10-27
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a floating crane shimmy damping device, which comprises a longitudinal damping mechanism and a transverse damping mechanism, wherein the longitudinal damping mechanism comprises a first bracket and at least two first electric cylinders; the two first electric cylinders are longitudinally arranged on the first bracket, first push rods of the two first electric cylinders are connected with first rollers, the first push rods stretch longitudinally, and roller shafts of the first rollers are transversely arranged; the transverse damping mechanism comprises a second bracket and second electric cylinders, and the second bracket is transversely erected on the two first electric cylinders; and a second push rod of the second electric cylinder is connected with a second roller, the second push rod stretches transversely, and a roller shaft of the second roller is arranged longitudinally. The utility model provides a floating crane shimmy damping device utilizes time lag gain initiative servo shimmy principle of subtracting, constantly damps the swing object when hanging the thing and rocking the excitation swing by the ship, effectively reduces the amplitude, has reduced and has hung the thing degree of difficulty of taking one's place, promotes the efficiency of taking one's place, and it has good engineering value to reduce window latency boats and ships nest worker construction cost and wasting of resources.

Description

Floating crane shimmy damping device

Technical Field

The utility model relates to a floating crane hoist and mount operation field on water. More specifically, the utility model relates to a floating crane subtracts pendulum floating crane device.

Background

When adopting engineering ship boats and ships to carry out hoist and mount operations such as component hoist and mount, steel casing sinking, pile foundation location, vibratory hammer installation in the sea condition waters environment of rivers, under the wave influence, face following problem:

1) under the excitation of the movement of the ship body, the hook and the rigging system can generate forced vibration, when the natural vibration frequency of the hook system is closer to the response frequency of the movement of the ship body, harmful large-amplitude swing can occur, great difficulty is brought to the positioning of a hanging object, and the positioning efficiency of the hanging object is reduced.

2) The shimmy of the ship lifting system in the lifting process threatens the personal safety of deck operators, and the ship labor is saved in the waiting period of the window, so that the construction cost is increased, and the serious resource waste is caused.

Therefore, a no-load or suspended object shimmy reduction system in a river sea condition water area environment needs to be researched, and the shimmy control problem is solved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is still another purpose to provide a floating crane shimmy damping device, and it can effectively reduce when adopting engineering boats and ships to hoist and mount the operation in the waters environment, when lifting hook and rigging system take place forced vibration when the hull moves under the wave influence, hangs the degree of difficulty of thing location.

In order to achieve these objects and other advantages in accordance with the present invention, a floating crane shimmy damping device is provided for use in a hoisting operation of a marine vessel on water, the vessel being provided with a floating crane support extending outwardly, the floating crane support being provided with a hoisting machine comprising a longitudinal damping mechanism and a transverse damping mechanism, the longitudinal damping mechanism comprising a first bracket and at least two first electric cylinders, the first bracket being fixed to a top surface of the floating crane support; the two first electric cylinders are longitudinally arranged on the first bracket, first push rods of the two first electric cylinders are connected with first rollers, the first push rods longitudinally extend and retract on the first bracket, roller shafts of the first rollers are transversely arranged, and the tail ends of the two first electric cylinders are fixed on the first bracket through first counter-force seats; the transverse damping mechanism comprises a second bracket and second electric cylinders, and the second bracket is transversely erected on the two first electric cylinders through the fixed connection of the two end parts of the second bracket and a roller shaft of a first roller respectively; the head end of the second electric cylinder is fixed on the second bracket through a second counter-force seat, a second push rod of the second electric cylinder is connected with a second idler wheel, the second push rod transversely stretches, a roller shaft of the second idler wheel is longitudinally arranged, a fixed pulley is hung on the second idler wheel, and a steel wire rope for connecting a hanging object and a winch is wound on the fixed pulley.

Preferably, the number of the second rollers is two, a first connecting rod is connected between the second rollers, a second push rod of the second electric cylinder is connected with the first connecting rod, and the fixed pulley is hung on the first connecting rod.

Preferably, the second bracket is provided with a channel between the two second rollers, and the first connecting rod passes through the channel through a steel wire rope to hang the fixed pulley below the second bracket.

Preferably, be equipped with spherical chamber in the head rod, an articulated piece is connected to the first push rod end of the electronic jar of second, and articulated piece extends a articulated rod, and the end of articulated rod is spherical end, and spherical end inlays with locating spherical intracavity with rotating.

Preferably, the second reaction seat is provided with a through hole, the through hole is axially and longitudinally arranged, a pin rod penetrates through the through hole, the tail end of the second electric cylinder is provided with a second connecting rod, the second connecting rod penetrates through the hollow hole of the tail end connecting body and is movably arranged on the pin rod, and the pin rods on two sides of the second connecting rod are respectively sleeved with a buffer spring.

Preferably, the pin is an arc-shaped rod.

Preferably, limit stops are arranged on two sides of the first roller.

Preferably, a rubber pad is arranged on the inner side of the limit stop.

The utility model discloses at least, include following beneficial effect:

1. by arranging the transverse damping mechanism and the longitudinal damping mechanism and utilizing a time lag gain active servo pendulum reduction principle, a pendulum object is continuously damped when a lifting hook or the hanging object is excited to swing by the swinging of a ship, so that the amplitude can be effectively reduced, and the stable hoisting work in a water surface environment is facilitated;

2. in-plane bidirectional active servo pendulum reduction: damping mechanisms are arranged in the longitudinal direction and the transverse direction of the ship, so that the swing can be reduced longitudinally and transversely, the in-place difficulty of a hanging object is reduced, the in-place efficiency of the hanging object is improved, the construction cost and the resource waste of ship workers during the waiting period of a window are reduced, and the personal safety of deck operators caused by the swing vibration of a ship hanging object system in the hoisting process is reduced;

3. the structure design is simple and effective, and the engineering utilization value is good.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a side view of one embodiment of the present invention;

FIG. 2 is an enlarged view of circle I in FIG. 1;

fig. 3 is a top view of an embodiment of the present invention;

FIG. 4 is an enlarged view of circle II of FIG. 3;

fig. 5 is a schematic view of a connection structure of the second push rod and the first connecting rod according to an embodiment of the present invention;

fig. 6 is a schematic view of a connection structure between the second electric cylinder and the second counter-force seat according to a technical solution of the present invention.

Description of reference numerals:

100. a vessel; 200. a floating crane support; 310. a first bracket; 320. a first electric cylinder; 321. a first push rod; 322. A first counter-force seat; 323. a first roller; 3231. connecting a pin shaft; 3232. a limit stop block; 3233. an ear plate; 410. A second bracket; 411. a channel; 420. a second electric cylinder; 421. a second push rod; 422. a second roller; 423. a first connecting rod; 4231. a spherical cavity; 424. a hinged block; 425. a hinged lever; 4251. a spherical end; 426. A second counter-force seat; 4261. a through hole; 4262. a pin rod; 4263. a spring; 427. a second connecting rod; 4271. A linker; 510. a winch; 520. a wire rope; 530. a fixed pulley; 540. and (5) hanging the object.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 4, in order to achieve these objects and other advantages in accordance with the present invention, there is provided a floating crane shimmy damping device for use in a water craft 100 for lifting, the craft 100 being provided with a floating crane support 200 extending outward, the floating crane support 200 being provided with a winch 510 including a longitudinal damping mechanism and a lateral damping mechanism, the longitudinal damping mechanism including a first bracket 310 and at least two first electric cylinders 320, the first bracket 310 being fixed to a top surface of the floating crane support 200; the two first electric cylinders 320 are longitudinally arranged on the first bracket 310, first push rods 321 of the two first electric cylinders 320 are connected with a first roller 323, the first push rods 321 longitudinally extend and retract on the first bracket 310, roller shafts of the first roller 323 are transversely arranged, and the tail ends of the two first electric cylinders 320 are fixed on the first bracket 310 through first counter-force seats 322; the transverse damping mechanism comprises a second bracket 410 and second electric cylinders 420, wherein the second bracket 410 is transversely erected on the two first electric cylinders 320 by fixedly connecting two end parts of the second bracket with a roller shaft of a first roller 323 respectively; the head end of the second electric cylinder 420 is fixed on the second bracket 410 through a second counter-force seat 426, a second push rod 421 of the second electric cylinder 420 is connected with a second roller 422, the second push rod 421 transversely extends and retracts, a roller shaft of the second roller 422 is longitudinally arranged, a fixed pulley 530 is hung on the second roller 422, and a steel wire rope 520 for connecting a hanging object 540 and a winch 510 is wound on the fixed pulley 530.

The utility model discloses a set up horizontal damping mechanism and longitudinal damping mechanism, utilize the time lag gain initiative servo to subtract the pendulum principle, constantly damp to the swing object when lifting hook or suspended object 540 are rocked by the ship and encourage the swing, can effectively reduce the amplitude, conveniently steadily lift by crane work in the surface of water environment; in-plane bidirectional active servo pendulum reduction: damping mechanisms are arranged in the longitudinal direction and the transverse direction of the ship 100, so that the swing can be reduced longitudinally and transversely, the in-place difficulty of the hanging object 540 is reduced, the in-place efficiency of the hanging object 540 is improved, the construction cost and the resource waste of the ship 100 in the window waiting period are reduced, and the personal safety of deck operators is prevented from being threatened by the swing vibration of the ship 100 hanging object 540 system in the hoisting process; the structure design is simple and effective, and the engineering utilization value is good.

In another technical solution, the number of the second rollers 422 is two, a first connecting rod 423 is connected in the middle of the second rollers 422, a second push rod 421 of the second electric cylinder 420 is connected to the first connecting rod 423, the fixed pulley 530 is hung on the first connecting rod 423, the two second rollers 422 are used for balancing the longitudinal damping force of the first push rod 321 on the hanging object 540 on the fixed pulley 530, and the first connecting rod 423 is provided for hanging the fixed pulley 530.

In another technical solution, the second bracket 410 is provided with a slot 411 between two second rollers 422, the two second rollers 422 are respectively disposed on the frame body of the second bracket 410 on two sides of the slot 411, the first connecting rod 423 passes through the slot 411 through a steel wire rope 520 to hang a fixed pulley 530 below the second bracket 410, and the second slot 411 is a space for the steel wire rope 520 to escape from lateral damping motion.

As shown in fig. 5, in another technical solution, a spherical cavity 4231 is formed in the first connecting rod 423, the end of the first push rod 321 of the second electric cylinder 420 is connected with a hinge block 424, the hinge block 424 extends out of a hinge rod 425, the end of the hinge rod 425 is a spherical end 4251, the spherical end 4251 is rotatably embedded in the spherical cavity 4231, so as to combine the swinging force of the suspended object 540 with the longitudinal damping force of the first electric cylinder 320 through the transverse damping of the second electric cylinder 420 for damping vibration, and at the same time, the longitudinal impact force of the second roller 422 on the second bracket 410 during the transverse damping vibration damping of the second electric cylinder 420 is reduced, the non-transverse swinging force is slowly transferred to the second bracket 410 through the rotation fit relationship of the second push rod 421 and the first connecting rod 423 to achieve a stable damping effect, and simultaneously the friction force between the second roller 422 on the second bracket 410 is reduced, the service life of the lifting device.

As shown in fig. 6, in another technical solution, the second reaction force seat 426 is provided with a through hole 4261, the through hole 4261 is axially and longitudinally arranged, the through hole 4262 is provided with a pin rod 4262, the end of the second electric cylinder 420 is provided with a second connecting rod 427, the second connecting rod 427 is movably arranged on the pin rod 4262 through a hollow hole of an end connecting body 4271, the pin rods 4262 at both sides of the second connecting rod 427 are respectively sleeved with a buffer spring 4263, the second electric cylinder 420 is driven by the longitudinal swinging force of the hanger 540, the longitudinal swinging force is slidably combined with the spring 4263 along the pin rod 4262 through the connecting body 4271, and is slowly transferred to a second bracket fixedly connected with the second reaction force seat 426, so that the damping effect is more relaxed, and the damping effect is better.

As described above, according to the present invention, the second reaction force seat 426 is a three-way structure, and the two side end faces are provided with holes, the two side end faces are connected to the pins 4262, and the end face connected to the second electric cylinder 420 is provided with a groove for the second connecting rod 427 to slide along the pins 4262. In another technical solution, the pin 4262 is an arc-shaped rod, and the pin 4262 is bent toward the second electric cylinder 420, so as to increase the friction force between the second connecting rod 427 and the pin 4262 when the second connecting rod 427 slides along the pin 4262, thereby preventing the lateral swinging force of the suspended object 540 from being too large, and when the buffering function of the spring 4263 is limited, further buffering impact is performed.

As described above, according to the present invention, the lower portion of the second bracket is provided with two sets of ear plates 3233 disposed oppositely, and the two first rollers 323 are connected to each set of ear plates 3233 through the connecting pin shaft 3231.

In another technical solution, limit stoppers 3232 are disposed on two sides of the first roller 323, and the limit stoppers 3232 provide a motion path for limiting the track for the longitudinal movement of the first roller 323 along the first bracket 310, so as to prevent the first roller 323 from moving laterally due to an excessive swing amplitude and force of the suspended object 540, and at the same time, cause wear or failure of a connection structure between the first electric cylinder 320 and the first reaction seat 322.

In another technical solution, a rubber pad is disposed on an inner side of the limit stopper 3232, and the rubber pad is used for buffering an impact of the first roller 323 on the limit stopper 3232 when the swing amplitude and the force of the hanging object 540 are too large.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. Floating crane shimmy damping device is applied to boats and ships on water and carries out the hoist and mount operation, is equipped with the floating crane support of outside extension on the boats and ships, be equipped with the hoist engine on the floating crane support, its characterized in that includes:

a longitudinal damping mechanism comprising:

the first bracket is fixed on the top surface of the floating crane bracket;

the two first electric cylinders are longitudinally arranged on the first bracket, first push rods of the two first electric cylinders are connected with first rollers, the first push rods longitudinally extend and retract on the first bracket, roller shafts of the first rollers are transversely arranged, and the tail ends of the two first electric cylinders are fixed on the first bracket through a first counter-force seat; a lateral damping mechanism comprising:

the second bracket is transversely erected on the two first electric cylinders by fixedly connecting two end parts of the second bracket with a roller shaft of a first roller respectively;

the head end of the second electric cylinder is fixed on the second bracket through a second counter-force seat, a second push rod of the second electric cylinder is connected with a second idler wheel, the second push rod transversely stretches along the second bracket, a roller shaft of the second idler wheel is longitudinally arranged, a fixed pulley is hung on the second idler wheel, and a steel wire rope for connecting a hanging object and a winch is wound on the fixed pulley.

2. The swing reducing device for the floating crane according to claim 1, wherein the number of the second rollers is two, a first connecting rod is connected between the two second rollers, a second push rod of the second electric cylinder is connected with the first connecting rod, and the fixed pulley is hung on the first connecting rod.

3. The floating crane shimmy damping device of claim 2, wherein the second bracket is provided with a channel between two second rollers, and the first connecting rod passes through the channel through a steel wire rope to hang a fixed pulley below the second bracket.

4. The suspension shimmy damper of claim 2, wherein a spherical cavity is arranged in the first connecting rod, the end of the first push rod of the second electric cylinder is connected with a hinge block, a hinge rod extends from the hinge block, the end of the hinge rod is a spherical end, and the spherical end is rotatably embedded in the spherical cavity.

5. The floating crane shimmy damping device of claim 4, wherein the second reaction force seat is provided with a through hole, the through hole is axially and longitudinally arranged, a pin rod is arranged in the through hole, the tail end of the second electric cylinder is provided with a second connecting rod, the second connecting rod is movably arranged on the pin rod through a hollow hole of the tail end connecting body, and the pin rods on the two sides of the second connecting rod are respectively sleeved with a buffer spring.

6. The floating crane shimmy damping device of claim 5, wherein the pin rod is an arc rod.

7. The floating crane shimmy damping device of claim 1, wherein limit stops are arranged on two sides of the first roller.

8. The floating crane shimmy damping device of claim 7, wherein the inside of the limit stop is provided with a rubber pad.