阅读说明：本技术 一种船闸应急阻拦装置 (Emergency blocking device for ship lock ) 是由 马名中 欧阳斌 李想 张成亮 邓璐 阳习党 张向明 于 2021-07-29 设计创作，主要内容包括：本发明采用的技术方案是：一种船闸应急阻拦装置,包括两个结构相同且对称设置的升降机构,所述两个升降机构分别设置于闸室的两岸且与船闸闸门之间设置有用于位于闸室内的船舶缓冲的空间；所述两个升降机构之间挂接有阻拦机构；所述阻拦机构为阻拦网或者阻拦索；两个升降机构用于同步调节阻拦机构的两端挂点的高度；两个升降机构用于控制阻拦机构的两端挂点同步向闸室内侧或者外侧进行移动,以调整阻拦机构的张弛状态。本发明有效保护船闸免于撞击损坏。(The technical scheme adopted by the invention is as follows: the ship lock emergency blocking device comprises two lifting mechanisms which are identical in structure and symmetrically arranged, wherein the two lifting mechanisms are respectively arranged on two sides of a lock chamber, and a space for buffering a ship in the lock chamber is arranged between the two lifting mechanisms and a ship lock gate; a stopping mechanism is hung between the two lifting mechanisms; the arresting mechanism is an arresting net or an arresting cable; the two lifting mechanisms are used for synchronously adjusting the heights of hanging points at two ends of the blocking mechanism; the two lifting mechanisms are used for controlling hanging points at two ends of the blocking mechanism to synchronously move towards the inner side or the outer side of the lock chamber so as to adjust the relaxation state of the blocking mechanism. The invention effectively protects the ship lock from being damaged by collision.)

1. The utility model provides an emergent arresting gear of ship lock which characterized in that: the ship lock comprises two lifting mechanisms which are same in structure and symmetrically arranged, wherein the two lifting mechanisms are respectively arranged on two sides of a lock chamber, and a space for buffering a ship positioned in the lock chamber is arranged between the two lifting mechanisms and a ship lock gate; a stopping mechanism is hung between the two lifting mechanisms; the arresting mechanism is an arresting net or an arresting cable; the two lifting mechanisms are used for synchronously adjusting the heights of hanging points at two ends of the blocking mechanism; the two lifting mechanisms are used for controlling hanging points at two ends of the blocking mechanism to synchronously move towards the inner side or the outer side of the lock chamber so as to adjust the relaxation state of the blocking mechanism.

2. The emergency barrier device for a ship lock of claim 1, wherein: the lifting mechanism comprises a buffer device, an energy absorption device and a rope; one end hanging point of the energy absorption device and one end hanging point of the corresponding stopping mechanism are respectively positioned on two sides of the buffer device; one end of the rope is fixedly connected with the energy absorption device, and the other end of the rope is bound with one end hanging point of the arresting mechanism; the rope is in a straightening state; the end of the buffer device is contacted with the rope; the end of the buffer is advanced or retracted in its axial direction by the internal power of the buffer or the pressure exerted by the rope.

3. The emergency barrier device for a ship lock of claim 1, wherein: the buffer device comprises a hydraulic cylinder, a piston and a piston rod; one end of the piston rod is fixedly connected with a piston arranged in the hydraulic cylinder, and the other end of the piston rod is in contact with the rope.

4. The emergency barrier device of a ship lock of claim 3, wherein: one end of the piston rod exposed out of the hydraulic cylinder is provided with a first pulley, and the rope is embedded in the first pulley.

5. The emergency barrier device of a ship lock of claim 3, wherein: the buffer device further comprises an energy accumulator; the energy accumulator is communicated with the hydraulic cylinder; when the high-pressure gas in the energy accumulator is exhausted, the hydraulic oil positioned in the hydraulic cylinder flows back to the energy accumulator; the piston drives the piston rod to retract towards the interior of the hydraulic cylinder; when the energy accumulator is filled with high-pressure gas, hydraulic oil of the energy accumulator enters the hydraulic cylinder under the pressure action of the high-pressure gas, and the hydraulic oil generates thrust on the piston to push the piston rod to extend out; and the hydraulic oil and the piston rod are respectively positioned on two sides of the piston.

6. The emergency barrier device for a ship lock of claim 1, wherein: the energy absorption device comprises a motor and a rope winding hub; a rotating shaft of the motor is fixedly connected with the rope winding hub and is used for driving the rope winding hub to rotate; the rope is wound around a rope winding hub.

7. The emergency barrier device of a ship lock of claim 4, wherein: the device also comprises a fixed pulley; one end of the stopping mechanism is hung between the point and the first pulley or is provided with one or more fixed pulleys; the rope is embedded in the fixed pulley in a matching way.

8. The emergency barrier device of a ship lock of claim 7, wherein: one or more fixed pulleys are arranged between the energy absorption device and the first pulley; the rope is embedded in the fixed pulley in a matching way.

9. The emergency barrier device of a ship lock of claim 8, wherein: a fixed pulley is arranged on one side of the hydraulic cylinder opposite to the end part of the piston rod; the rope is embedded in the fixed pulley in a matching way.

10. The emergency barrier device of a ship lock of claim 9, wherein: the rope is looped around one or more turns between a plurality of fixed pulleys.

Technical Field

The invention belongs to the technical field of emergency blocking of navigation ship locks of river hydropower stations, and particularly relates to an emergency blocking device for a ship lock.

Background

When a river hydroelectric power station is built to dam and intercept river water storage and energy storage, in order to ensure that a ship can normally navigate, a lift or a navigation ship lock is usually built. The lifter is mainly suitable for navigation of small-tonnage ships, and the main form of the river ship 'dam-turning' navigation is a navigation ship lock at present. In order to avoid the collision of the ship lock caused by the out-of-control ship passing through the lock, management measures such as double rudders of the ship, limitation of the moving speed of the ship entering and exiting the lock chamber and the lock, and definition of a forbidden line are mainly required. These management measures reduce the navigation efficiency of the lock, and although the probability of a navigable vessel striking the gate is reduced, the risk of a navigable vessel striking the gate cannot be completely avoided.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provide an emergency blocking device for a ship lock, which can protect the ship lock from being damaged by collision.

The technical scheme adopted by the invention is as follows: the ship lock emergency blocking device comprises two lifting mechanisms which are identical in structure and symmetrically arranged, wherein the two lifting mechanisms are respectively arranged on two sides of a lock chamber, and a space for buffering a ship in the lock chamber is arranged between the two lifting mechanisms and a ship lock gate; a stopping mechanism is hung between the two lifting mechanisms; the arresting mechanism is an arresting net or an arresting cable; the two lifting mechanisms are used for synchronously adjusting the heights of hanging points at two ends of the blocking mechanism; the two lifting mechanisms are used for controlling hanging points at two ends of the blocking mechanism to synchronously move towards the inner side or the outer side of the lock chamber so as to adjust the relaxation state of the blocking mechanism.

In the technical scheme, the lifting mechanism comprises a buffer device, an energy absorption device and a rope; one end hanging point of the energy absorption device and one end hanging point of the corresponding stopping mechanism are respectively positioned on two sides of the buffer device; one end of the rope is fixedly connected with the energy absorption device, and the other end of the rope is bound with one end hanging point of the arresting mechanism; the rope is in a straightening state; the end of the buffer device is contacted with the rope; the end of the buffer is advanced or retracted in its axial direction by the internal power of the buffer or the pressure exerted by the rope.

In the above technical solution, the buffer device includes a hydraulic cylinder, a piston and a piston rod; one end of the piston rod is fixedly connected with a piston arranged in the hydraulic cylinder, and the other end of the piston rod is in contact with the rope.

In the above technical scheme, one end of the piston rod exposed out of the hydraulic cylinder is provided with a first pulley, and the rope is embedded in the first pulley.

In the above technical solution, the buffer device further comprises an energy accumulator; the energy accumulator is communicated with the hydraulic cylinder; when the high-pressure gas in the energy accumulator is exhausted, the hydraulic oil positioned in the hydraulic cylinder flows back to the energy accumulator; the piston drives the piston rod to retract towards the interior of the hydraulic cylinder; when the energy accumulator is filled with high-pressure gas, hydraulic oil of the energy accumulator enters the hydraulic cylinder under the pressure action of the high-pressure gas, and the hydraulic oil generates thrust on the piston to push the piston rod to extend out; and the hydraulic oil and the piston rod are respectively positioned on two sides of the piston.

In the technical scheme, the energy absorption device comprises a motor and a rope winding hub; a rotating shaft of the motor is fixedly connected with the rope winding hub and is used for driving the rope winding hub to rotate; the rope is wound around a rope winding hub.

In the technical scheme, the device also comprises a fixed pulley; one end of the stopping mechanism is hung between the point and the first pulley or is provided with one or more fixed pulleys; the rope is embedded in the fixed pulley in a matching way.

In the technical scheme, one or more fixed pulleys are arranged between the energy absorption device and the first pulley; the rope is embedded in the fixed pulley in a matching way.

In the technical scheme, a fixed pulley is arranged on one side of the hydraulic cylinder opposite to the end part of the piston rod; the rope is embedded in the fixed pulley in a matching way. The rope is looped around one or more turns between a plurality of fixed pulleys. The lifting mechanism is provided with a gear rack structure, and the lifting mechanism is adaptively lifted through the gear rack mechanism along with the variation of the navigation water level of the lock chamber.

The invention arranges a set of lifting mechanism at the positions of two banks of the lock chamber apart from the gate by a certain distance, and arranges a rapidly detachable arresting cable or arresting net across the lock chamber by the lifting mechanism at the left and right banks. When the arresting protection gate is in a state, the lifting mechanism is adaptively lifted through the gear rack mechanism along with the variation of the navigation water level of the gate chamber, so that the arresting cable or the arresting net is ensured to be at a proper height, and an out-of-control ship can be effectively intercepted. At this time, if the navigation ship collides against the arresting cable or the arresting net due to overspeed or out of control, the arresting cable or the arresting net transmits arresting force to the buffer device through the rope, the buffer device is compressed or stretched to release part of the rope, simultaneously, the peak tension of the rope at the moment of impact is reduced, the rope is dragged to rotate around the rope hub to continuously release the rope, and the energy absorption device absorbs the kinetic energy of the ship by applying arresting torque on the shaft system of the rope hub, so that the navigation ship is ensured to be effectively arrested before touching the gate. When the gate is opened and the ship is ready to pass the gate, the lifting mechanism quickly rises to the highest point, and the ship can quickly pass through the gate. The lifting mechanism can be lifted to a high position, so that smooth navigation of the ship is realized; and the ship can be lowered to a low position to emergently stop the ship which stalls or is out of control and collides with the gate, and the specific position of the low position is adaptively adjusted along with the navigation water level of the gate chamber. The invention has flexible application, and can cancel the cable winding hub and the energy absorption device and completely absorb the kinetic energy of the ship by the buffer device if the navigation lock chamber only allows the ship with smaller tonnage to navigate. After a stalled or out-of-control ship collides with the arresting cable or the arresting net, the piston rod of the buffer device is compressed or stretched, partial ropes can be released, the peak tension of the ropes and the arresting force borne by the ship at the moment of ship collision can be greatly reduced, and the ropes and the ship body structure are effectively protected; the energy absorption device can actively regulate and control the blocking moment and the blocking distance according to the tonnage, the rope collision speed or the net collision speed of the navigation ship, ensure the safety of the gate and effectively protect the safety of the ship structure.

Drawings

Fig. 1 is a schematic structural diagram of the emergency arresting device of the ship lock.

Fig. 2 is a schematic diagram of a single-loop cable winding structure of the ship lock emergency stopping device adopting a compression type buffer device.

Fig. 3 is a schematic diagram of a double-loop cable winding structure of the ship lock emergency stopping device adopting a compression type buffer device.

Fig. 4 is a schematic structural view of the ship lock emergency stopping device with a rope transmission and energy absorption part adopting a rope winding hub and an energy absorption stopping motor.

The figure includes: 1-hydraulic cylinder 2-piston 3-piston rod 4-flow control valve 5-energy accumulator 6-first pulley 7-top fixed pulley 8-bottom fixed pulley 9-tail fixed pulley 10-tail fixed pulley support 11-rope 12-rope winding rope hub 13-energy-absorbing arresting motor 14-hanging point 15-gate 16-arresting mechanism 17-lifting mechanism 18-buffer device 19-energy-absorbing device 20-pulley block.

Detailed Description

The invention will be further described in detail with reference to the following drawings and specific examples, which are not intended to limit the invention, but are for clear understanding.

Fig. 1 is a schematic diagram of the overall structure of the emergency blocking device of the ship lock, wherein a set of lifting mechanism 17 is respectively arranged at the positions of the two banks of a river away from the safe distance of a gate 15, the lifting mechanism 17 is lifted to adapt to the change of the navigation water level of a lock chamber, and whether the system is in a navigation state or a blocking protection state is realized. The lifting mechanism 17 is adaptively lifted through a gear rack mechanism along with the variation of the navigation water level of the lock chamber, so that the arresting cable or the arresting net is ensured to be at a proper height. The lifting mechanism 17 comprises a rope 11, a buffer device 18, an energy absorption device 19 and a pulley block 20; one end hanging point of the energy absorption device 19 and one end hanging point of the corresponding stopping mechanism 16 are respectively positioned at two sides of the buffer device 18; one end of the rope 11 is fixedly connected with the energy absorption device 19, and the other end of the rope 11 is bound with one end hanging point 14 of the arresting mechanism 16; the rope 11 is in a straightened state; the end of the buffer device 18 is in contact with the rope 11; the end of the buffer device 18 advances or retreats along the axial direction thereof by the internal power of the buffer device 18 or the pressure exerted by the rope 11, and is used for controlling the hanging points at the two ends of the arresting mechanism 16 to synchronously move towards the inner side or the outer side of the chamber so as to adjust the relaxation state of the arresting mechanism 16. The buffer device 18 can be of a piston rod compression type or a piston rod extension type; the damping characteristics of the damping device 18 may be fixed or variable to better accommodate ships of different tonnage. The energy absorption device can be a hydraulic type, a mechanical friction type or a motor (electromagnetic) type, and can also be a combined type of different energy absorption modes. The hanging point 14, the damping device 18 and the energy-absorbing device 19 are mutually matched through a rope 11 and a pulley block 20, and the rope 11 can move in the pulley block through the action of the ship, the damping device 18 and the energy-absorbing device 19.

Fig. 2 is a schematic diagram of a single-loop cable winding structure of the ship lock emergency stopping device adopting a compression type buffer device. The buffer device comprises a hydraulic cylinder 1, a piston 2, a piston rod 3, a flow control valve 4 and an energy accumulator 5 which are communicated with the hydraulic cylinder 1; one end of the piston rod 3 is fixedly connected with the piston 2 arranged in the hydraulic cylinder 1, the other end of the piston rod 3 is provided with a first pulley 6, and the rope is embedded in the first pulley. A flow control valve 4 is arranged on a pipeline for communicating the accumulator 5 and the hydraulic cylinder 1 and is used for controlling the flow of hydraulic oil flowing between the accumulator 5 and the hydraulic cylinder 1. Two fixed pulleys are arranged between the first pulley 6 and the hanging point, and a fixed pulley is arranged between the first pulley 6 and the energy absorption device 19. After high-pressure gas in the energy accumulator 5 is exhausted through the exhaust valve, the piston rod 3 is compressed into the hydraulic cylinder 1, the first pulley 6 moves leftwards, part of the rope between the top fixed pulley 7 and the bottom fixed pulley 8 is released, and the rope 11 is in a loose state, so that the arresting cable or the arresting net can be conveniently and quickly hung. After the arresting cable or the arresting net is quickly hung, high-pressure gas is filled into the energy accumulator 5, hydraulic oil enters the hydraulic cylinder 1 from the energy accumulator 5 under the action of gas pressure, the high-pressure hydraulic oil generates thrust on the piston 2 to push the piston rod 3 to extend out, and meanwhile, the first pulley 6 is driven to move rightwards, and the arresting cable or the arresting net is automatically tensioned. When the navigation ship collides against the arresting cable or the arresting net due to overspeed or out of control, the arresting cable or the arresting net transmits arresting force to the buffer device 18 through the rope, the buffer device 18 is compressed to release part of the rope, the tension peak value on the rope at the moment of the ship rope collision or net collision is reduced, and meanwhile, part or all of kinetic energy of the navigation ship is absorbed.

Fig. 3 is a schematic diagram of a double-loop cable winding structure of the ship lock emergency stopping device adopting a compression type buffer device. On the basis of the working principle of fig. 2, if the buffering distance needs to be increased or the compression stroke of the piston rod of the buffering device needs to be shortened when the buffering distance is fixed, the tail fixed pulley 9 can be added. The tail part of the hydraulic cylinder 1 is symmetrically provided with a tail part fixed pulley support 10 extending outwards, and the tail part fixed pulley 9 is arranged at the end part of the tail part fixed pulley support 10. The rope is wound around a pulley formed by matching a plurality of pulleys, the rope 11 can adopt a double-circle or multi-circle winding structure, and the number and the installation position of the tail fixed pulley 9 can be selected according to actual requirements.

Fig. 4 is a schematic structural view of the ship lock emergency stopping device with a rope transmission and energy absorption part adopting a rope winding hub and an energy absorption stopping motor. On the basis of the working principle of fig. 3, if the buffering device is not enough to release a rope with enough length or absorb the whole energy of the navigation ship, the rope 11 is dragged to rotate around the rope hub 12 while the buffering device piston 2 and the piston rod 3 are compressed by adding the rope hub 12 and the motor 13 of the energy absorbing device (taking the motor as the energy absorbing device 19 as an example), and the coaxial energy absorbing and blocking motor 13 absorbs the energy for stopping the ship by applying a braking torque. After the ship is stopped, the energy-absorbing arresting motor 13 automatically recovers and tensions the arresting cable or the arresting net through reverse rotation, and then the ship enters the next emergency arresting protection state.

When the arresting cable or the arresting net is hung, one mode is that gas in an energy accumulator 5 of the buffer device is discharged through an exhaust valve, a piston rod 3 of the buffer device is compressed or stretched, a rope is in a loose state and is easy to quickly hang the arresting cable or the arresting net, after the hanging of the arresting cable or the arresting net is finished, the energy accumulator 5 of the buffer device starts to be inflated, the piston rod 3 starts to extend under the action of pressure, and the arresting cable or the arresting net is automatically tensioned; the other mode is that the blocking torque of the energy absorption device 19 is released, a part of the rope is released by rotating around the rope hub 12, so that the rope is in a loose state, the blocking rope or the blocking net is easy to hang quickly, and after the blocking rope or the blocking net is hung completely, the rope hub 12 rotates by applying driving torque, and the blocking rope or the blocking net is automatically tensioned.

Those not described in detail in this specification are within the skill of the art.