CN215857824U - Liftable anti-ice cone suitable for offshore pile foundation - Google Patents
Liftable anti-ice cone suitable for offshore pile foundation Download PDFInfo
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- CN215857824U CN215857824U CN202121820447.5U CN202121820447U CN215857824U CN 215857824 U CN215857824 U CN 215857824U CN 202121820447 U CN202121820447 U CN 202121820447U CN 215857824 U CN215857824 U CN 215857824U
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Abstract
A liftable ice-resistant cone suitable for an offshore pile foundation comprises a pile foundation, wherein a control platform is arranged in the pile foundation, a guide wheel and a traction wheel are arranged on the control platform, and the traction wheel is driven to rotate by a driving motor; the guide wheel and the traction wheel are driven by a traction rope, one end of the traction rope is connected with the anti-icing centrum, and the other end of the traction rope is connected with a balancing weight; the traction sheave is matched with the locking wheel device to clamp the traction rope. The utility model can reduce the wave load when lifting the height in the ice-free period, ensure the safety of the structure, reduce the pile foundation engineering quantity and save the cost; the locking wheel device provides frictional force for dragging the haulage rope, prevents to drag the haulage rope and the problem of skidding appears.
Description
Technical Field
The utility model belongs to the technical field of offshore wind power engineering and offshore platforms, and particularly relates to a liftable anti-ice cone suitable for an offshore pile foundation.
Background
In part of sea areas, the invasion of sea ice exists in winter, the influence of the sea ice on the foundation of the wind driven generator is serious, large static force action exists, and ice-induced vibration of a structure can be caused at a specific flow velocity. This not only reduces the power generation and causes economic losses, but also can cause structural failure and safety problems. In addition, the anti ice awl structure that the platform adopted can solve above-mentioned problem, but this mode causes the fan foundation cost to increase more, very big increase the construction degree of difficulty and construction period moreover.
Corresponding ice-resisting measures are also available in the prior art, for example, chinese patent document CN 204267229U describes an ice-breaking and shock-absorbing rotary device for an offshore wind power pile foundation structure, which is arranged at an ice-shock foundation position through a bracket, a connecting plate and a connecting bolt, and sea ice breaking is converted from extrusion type breaking to bending breaking through an ice-breaking cone to reduce damage to the foundation structure. However, the ice-breaking cone is fixed on the pile foundation, so that the influence of ice-induced vibration on the foundation is reduced, but the wave load is increased, and the foundation engineering quantity is increased.
Disclosure of Invention
In view of the technical problems in the background art, the liftable ice resisting cone suitable for the offshore pile foundation provided by the utility model has the advantages that the height is lifted in the ice-free period to reduce the action of wave load, the safety of a structure is ensured, meanwhile, the engineering quantity of the pile foundation is reduced, and the cost is saved; the locking wheel device provides frictional force for dragging the haulage rope, prevents to drag the haulage rope and the problem of skidding appears.
In order to solve the technical problems, the utility model adopts the following technical scheme to realize:
a liftable ice-resistant cone suitable for an offshore pile foundation comprises a pile foundation, wherein a control platform is arranged in the pile foundation, a guide wheel and a traction wheel are arranged on the control platform, and the traction wheel is driven to rotate by a driving motor; the guide wheel and the traction wheel are driven by a traction rope, one end of the traction rope is connected with the anti-icing centrum, and the other end of the traction rope is connected with a balancing weight; the traction sheave is matched with the locking wheel device to clamp the traction rope.
In a preferred scheme, the locking wheel device comprises a support connected with the control platform, the top of the support is hinged with a rotating rod, a locking wheel is rotatably arranged on the rotating rod, and the locking wheel is matched with the traction wheel to clamp the traction rope; the rotating rod is driven to rotate by the telescopic rod device.
In the preferred scheme, the telescopic rod device is an electric push rod or an oil cylinder, two ends of the telescopic rod device are respectively hinged with the rotary rod and the auxiliary support, and the auxiliary support is connected with the support.
In the preferred scheme, a plurality of groups of guide wheels, traction wheels, locking wheel devices and traction ropes are arranged, and a plurality of traction ropes are connected with the same balancing weight.
In the preferred scheme, the outer wall of the pile foundation is provided with a guide rail, and the anti-ice cone is in sliding fit with the guide rail.
In the preferred scheme, the lower part of the outer wall of the pile foundation is provided with a stopper, and the stopper is positioned below the anti-icing vertebral body.
In the preferred scheme, the pile foundation is provided with an ice condition monitoring sensor.
This patent can reach following beneficial effect:
1. in the ice-free environment, the ice cone resistance is improved to a position outside a wave influence area, and the wave load is reduced; when the sensors monitor that ice exists around the piles, the controller controls the traction wheel and the traction rope to enable the ice-resistant cone to descend to the ice surface, and the ice load is reduced by changing the damage mode of ice. In addition, the system can realize the active ice breaking function through the continuous lifting and descending of the ice resisting cone. The mechanism is adjusted seasonally, so that the engineering quantity of pile foundation design is greatly reduced, the manufacturing cost is saved, meanwhile, the mechanism is simple to install and operate, convenient to construct and high in construction speed, and the economic benefits of offshore wind power and offshore platforms in ice regions can be greatly improved.
2. The locking wheel device mainly provides frictional force for dragging the haulage rope, prevents to drag the haulage rope and the problem of skidding appears. Under normal conditions, the balancing weight and the anti-icing centrum are balanced through the friction between the traction rope and the traction wheel. But in the process of balancing weight motion, can appear skidding phenomenon because of inertia effect.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
fig. 3 is a schematic structural view of the locking wheel device of the present invention.
In the figure: the method comprises the following steps of 1-pile foundation, 2-limiter, 3-anti-icing cone, 4-guide rail, 5-guide wheel, 6-traction wheel, 7-controller, 8-counterweight block, 9-traction rope, 10-control flat, 11-locking wheel device, 11.1-bracket, 11.2-rotating rod, 11.3-telescopic rod device, 11.4-locking wheel and 12-ice condition monitoring sensor.
Detailed Description
The preferable scheme is as shown in fig. 1 to fig. 3, the liftable ice-resistant cone suitable for the offshore pile foundation comprises a pile foundation 1, a control platform 10 is arranged in the pile foundation 1, a guide wheel 5 and a traction wheel 6 are arranged on the control platform 10, and the traction wheel is driven to rotate by a driving motor; the guide wheel 5 and the traction wheel 6 are driven by a traction rope 9, one end of the traction rope 9 is connected with the anti-icing centrum 3, and the other end of the traction rope 9 is connected with a balancing weight 8; the traction sheave 6 cooperates with a locking sheave arrangement 11 for clamping the traction ropes 9. The guide wheel 5, the traction wheel 6, the locking wheel device 11 and the traction ropes 9 are provided with a plurality of groups, and the traction ropes 9 are connected with the same balancing weight 8.
This anti ice awl of liftable includes pile foundation 1, anti ice system, counter weight system, slowly falls system, control system and monitoring system to and have anti-skidding function's locking wheel device 11. The anti-ice system mainly comprises an anti-ice cone 3 and a guide rail 4; the counterweight system comprises a traction wheel 6, a guide wheel 5, a traction rope 9 and a counterweight block 8; the slow descending system comprises a limiter 2 and seawater inside the pile; the control system comprises a controller 7, a control platform 10 and an ice condition monitoring sensor 12.
In the anti-ice system, two or four or six vertical guide rails 4 are arranged on the outer side of the pile foundation 1, the anti-ice cone 3 is similar to the traditional anti-ice cone and can be a positive ice cone, an inverted ice cone or a positive-inverted cone assembly, the anti-ice cone 3 is arranged on the outer side of the pile foundation 1 in the annular mode as a whole, and the anti-ice cone 3 can be lifted and lowered on the outer side of the pile foundation 1 along the guide rails 4. The anti-ice cone 3 is provided with a lifting lug at a proper position, and the traction rope 9 is dragged to lift or lower the anti-ice cone 3 through the lifting lug.
A traction wheel 6 and a guide wheel 5 in the counterweight system are arranged on a control platform 10, one end of a traction rope 9 is fixed on an anti-ice cone 3 lifting lug, the direction of the traction rope 9 is changed by bypassing the guide wheel 5, the traction rope bypasses the traction wheel 6, and the other end of the traction rope is fixed on a counterweight block 8. The number of lifting lugs, the number of traction wheels 6, the number of guide wheels 5 and the number of traction ropes 9 are in one-to-one correspondence and can be 2 groups, 4 groups or 6 groups, and a plurality of groups of traction ropes 9 are all fixed on the same balancing weight 8. The counterweight block 8 can be made of precast concrete or steel materials. The mass of the counterweight block 8 is equal to the mass of the ice-resistant cone 3 to form a counterweight system. The traction sheave 6 is self-powered, and due to the existence of the balance weight system, the power of the traction sheave 6 only needs to overcome the friction force and a small part of accessory gravity, so that the power required by lifting is greatly reduced. The power of the traction sheave 6 is controlled by a controller 7 in the control system.
The limiting stopper 2 of the slow descending system is arranged on the outer side of the pile foundation 1 below the extreme low water level, and the limiting stopper 2 is provided with a buffer device which can adopt a spring. Because the water level in the pile foundation is consistent with the seawater level, the counterweight block 8 is lifted in the water body in the pile, and the water in the pile plays a role in damping slow descending, so that the speed limiter in the controller 7 is omitted, and the pile foundation has good economical efficiency.
A control platform 10 is arranged in the pile foundation 1, and a synchronization system is arranged in the controller 7 and is placed on the control platform 10, so that the sets of traction wheels 6 work synchronously. The ice condition monitoring sensor 12 is arranged at the position of the control platform 10 on the outer side of the pile foundation 1, the ice condition monitoring sensor 12 and the controller 7 have a data transmission function, and when the ice condition is monitored, the controller 7 starts to work to control the anti-ice cone 3 to descend.
Furthermore, the locking wheel device 11 comprises a support 11.1 connected with the control platform 10, the top of the support 11.1 is hinged with a rotating rod 11.2, a locking wheel 11.4 is rotatably arranged on the rotating rod 11.2, and the locking wheel 11.4 is matched with the traction wheel 6 to clamp the traction rope 9; the rotating rod 11.2 is driven to rotate by the telescopic rod device 11.3. The telescopic rod device 11.3 is an electric push rod or an oil cylinder, two ends of the telescopic rod device 11.3 are respectively hinged with the rotary rod 11.2 and the auxiliary support, and the auxiliary support is connected with the support 11.1.
The locking wheel device 11 mainly provides friction force for the traction rope 9, and prevents the traction rope 9 from slipping. Normally, the counterweight block 8 and the anti-icing vertebral body 3 are balanced by the friction force between the traction rope 9 and the traction sheave 6. But at the in-process of 8 movements of balancing weights, can appear skidding because of inertial action, in order to further improve and tow the stability of haulage rope 9 traction ground, this patent has designed locking wheel device 11, can adjust telescopic link device 11.3's pressure value according to 8 functioning speed of balancing weights and required brake force size.
The working principle is as follows:
under the ice-free environment in a general state, as shown in fig. 1, the ice cone 3 is lifted to a position outside the wave influence area, and the wave load is reduced; after the sensor monitors that ice exists around the pile, the controller controls the traction wheel and the traction rope to enable the ice-resistant cone 3 to descend to the ice surface, and as shown in figure 2, the ice load is reduced by changing the damage mode of ice. In addition, the system can realize the active ice breaking function through the continuous lifting and descending of the ice resisting cone. The mechanism is adjusted seasonally, so that the engineering quantity of pile foundation design is greatly reduced, the manufacturing cost is saved, meanwhile, the mechanism is simple to install and operate, convenient to construct and high in construction speed, and the economic benefits of offshore wind power and offshore platforms in ice regions can be greatly improved.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.
Claims (7)
1. The utility model provides an anti ice awl of liftable suitable for offshore pile foundation, includes pile foundation (1), its characterized in that: a control platform (10) is arranged in the pile foundation (1), a guide wheel (5) and a traction wheel (6) are arranged on the control platform (10), and the traction wheel is driven to rotate by a driving motor; the guide wheel (5) and the traction wheel (6) are driven by a traction rope (9), one end of the traction rope (9) is connected with the anti-icing cone (3), and the other end of the traction rope (9) is connected with a balancing weight (8); the traction sheave (6) is matched with the locking wheel device (11) for clamping the traction rope (9).
2. The liftable ice pick resisting cone suitable for the offshore pile foundation of claim 1, wherein: the locking wheel device (11) comprises a support (11.1) connected with the control platform (10), the top of the support (11.1) is hinged with a rotating rod (11.2), a locking wheel (11.4) is rotatably arranged on the rotating rod (11.2), and the locking wheel (11.4) is matched with the traction wheel (6) to clamp the traction rope (9); the rotating rod (11.2) is driven to rotate by the telescopic rod device (11.3).
3. The liftable ice pick resisting cone suitable for the offshore pile foundation of claim 2, wherein: the telescopic rod device (11.3) is an electric push rod or an oil cylinder, two ends of the telescopic rod device (11.3) are respectively hinged with the rotary rod (11.2) and the auxiliary support, and the auxiliary support is connected with the support (11.1).
4. The liftable ice pick resisting cone suitable for the offshore pile foundation of claim 3, wherein: the guide wheel (5), the traction wheel (6), the locking wheel device (11) and the traction ropes (9) are provided with a plurality of groups, and the traction ropes (9) are connected with the same balancing weight (8).
5. The liftable ice pick resisting cone suitable for the offshore pile foundation of claim 1, wherein: the outer wall of the pile foundation (1) is provided with a guide rail (4), and the anti-ice cone (3) is in sliding fit with the guide rail (4).
6. The liftable ice pick resisting cone suitable for the offshore pile foundation of claim 1, wherein: the lower part of the outer wall of the pile foundation (1) is provided with a limiter (2), and the limiter (2) is positioned below the anti-ice vertebral body (3).
7. The liftable ice pick resisting cone suitable for the offshore pile foundation of claim 1, wherein: an ice condition monitoring sensor (12) is arranged on the pile foundation (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121820447.5U CN215857824U (en) | 2021-08-05 | 2021-08-05 | Liftable anti-ice cone suitable for offshore pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121820447.5U CN215857824U (en) | 2021-08-05 | 2021-08-05 | Liftable anti-ice cone suitable for offshore pile foundation |
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| Publication Number | Publication Date |
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| CN215857824U true CN215857824U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121820447.5U Active CN215857824U (en) | 2021-08-05 | 2021-08-05 | Liftable anti-ice cone suitable for offshore pile foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116377990A (en) * | 2023-06-01 | 2023-07-04 | 上海勘测设计研究院有限公司 | Movable ice breaking device and use method |
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2021
- 2021-08-05 CN CN202121820447.5U patent/CN215857824U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116377990A (en) * | 2023-06-01 | 2023-07-04 | 上海勘测设计研究院有限公司 | Movable ice breaking device and use method |
| CN116377990B (en) * | 2023-06-01 | 2023-08-01 | 上海勘测设计研究院有限公司 | Movable ice breaking device and use method |
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