Bidirectional ship lift by gravity balancing

Patent metadata

Field	Value
Publication number	US-11085158-B2
Application number	US-202016872324-A
Country	US
Kind code	B2
Filing date	May 11, 2020
Priority date	May 20, 2019
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

Disclosed is an energy-saving bidirectional ship lift by gravity balancing, including: a ship lift body. A first support is provided in a middle of the ship lift body. A second support is provided at a side of the first support. A third support is provided at the other side of the first support. A space between the second support and the first support forms a first shaft. A space between the first support and the third support forms a second shaft. A first ship-carrying chamber and a second ship-carrying chamber are respectively provided in the first shaft and the second shaft to allow two ships to be transported at the same time. An entry water tank and an exit water tank are provided at two sides of each ship-carrying chamber to adjust the weight of the two ship-carrying chambers.

First claim

What is claimed is:

1. A bidirectional ship lift by gravity balancing, comprising a ship lift body;
wherein a first support is provided in a middle of the ship lift body; a second support is provided at a side of the first support; and a third support is provided at the other side of the first support;
a downstream approach channel is provided at a bottom of a side of the second support and a bottom of a side of the third support, respectively; and an upstream approach channel is provided at a top of a side of the second support and a top of a side of the third support, respectively;
a space between the second support and the first support forms a first shaft; a space between the first support and the third support forms a second shaft; a first ship-carrying chamber is provided in the first shaft; a second ship-carrying chamber is provided in the second shaft; and two transition ship chambers are respectively provided at a top of the first shaft and a top of the second shaft;
a top of the third support is provided with a first outer safety pincer installation groove, in which a plurality of first outer safety pincers are provided; a bottom of each first outer safety pincer is provided with a first outer fixed pulley; and a top of each first outer safety pincer is provided with a second outer fixed pulley;
a top of the second support is provided with a second outer safety pincer installation groove, in which a plurality of second outer safety pincers are provided; a bottom of each second outer safety pincer is provided with a sixth outer fixed pulley; and a top of each second outer safety pincer is provided with a fifth outer fixed pulley;
a top of the first support is provided with a tension device installation groove; a plurality of first inner fixed pulleys are provided at a bottom of a side of the tension device installation groove; and a plurality of fifth inner fixed pulleys are provided at a bottom of the other side of the tension device installation groove;
a bottom of each first inner fixed pulley is provided with a first inner safety pincer; and a bottom of each fifth inner fixed pulley is provided with a second inner safety pincer;
a second inner fixed pulley is provided at the bottom of the side of the tension device installation groove; and a plurality of bidirectional speed limiters are provided at the bottom of the other side of the tension device installation groove;
a top of the tension device installation groove is provided with an outer tension gear installation groove; a plurality of fourth outer fixed pulleys are provided at a bottom of a side of the outer tension gear installation groove; a plurality of third outer fixed pulleys are provided at a bottom of the other side of the outer tension gear installation groove; and a plurality of outer tension gears are provided in the outer tension gear installation groove; and
an inner tension gear installation groove is provided at a bottom of the tension device installation groove; a plurality of third inner fixed pulleys are provided at a top of a side of the inner tension gear installation groove; a plurality of fourth inner fixed pulleys are provided at a top of the other side of the inner tension gear installation groove; and a plurality of inner tension gears are provided in the inner tension gear installation groove.

2. The bidirectional ship lift of claim 1 , wherein a top of each outer tension gear is fixedly connected to an outer tension gear installation plate via bolts; an end of each of a plurality of first tension hydraulic cylinders is fixedly connected to a top of the outer tension gear installation plate; and the other end of each of the plurality of first tension hydraulic cylinders is fixedly connected to a top of the outer tension gear installation groove; and
a bottom of each inner tension gear is fixedly connected to an inner tension gear installation plate via bolts; an end of each of a plurality of second tension hydraulic cylinders is fixedly connected to a bottom of the inner tension gear installation plate; and the other end of each of the plurality of second tension hydraulic cylinders is fixedly connected to a bottom of the inner tension gear installation groove.

3. The bidirectional ship lift of claim 1 , wherein a plurality of trapezoidal screw installation grooves are provided at two sides of the first shaft and two sides of the second shaft, respectively; and each of a plurality of linear slide rail installation grooves is sandwiched between two adjacent trapezoidal screw installation grooves; and
a plurality of trapezoidal screws are provided in the trapezoidal screw installation grooves; a plurality of screw motors are respectively provided at an end of each of the plurality of trapezoidal screws and are electrically connected to an external power supply; and linear slide rails are respectively provided in the linear slide rail installation grooves.

4. The bidirectional ship lift of claim 1 , wherein a plurality of first outer holes are provided at a side of a top of the first ship-carrying chamber; and a plurality of first inner holes are provided at the other side of the top of the first ship-carrying chamber;
a plurality of second outer holes are provided at a side of a top of the second ship-carrying chamber; and a plurality of second inner holes are provided at the other side of the top of the second ship-carrying chamber; and
the first outer holes, the first inner holes, the second outer holes and the second inner holes are provided for fixing steel cables.

5. The bidirectional ship lift of claim 4 , wherein an end of each of a plurality of outer steel cables is fixedly connected to one of the second outer holes; and
the other end of each outer steel cable passes through the first outer fixed pulley, one of the first outer safety pincers, the second outer fixed pulley, one of the third outer fixed pulleys, one of the outer tension gears, one of the fourth outer fixed pulleys, the fifth outer fixed pulley, one of the second outer safety pincers and the sixth outer fixed pulley in sequence, and then is fixedly connected to one of the first outer holes.

6. The bidirectional ship lift of claim 4 , wherein an end of each of a plurality of inner steel cables is fixedly connected to one of the first inner holes; and
the other end of each inner steel cable passes through the first inner safety pincer, one of the first inner fixed pulleys, the second inner fixed pulley, one of the third inner fixed pulleys, one of the inner tension gears, one of the fourth inner fixed pulleys, one of the bidirectional speed limiters, one of the fifth inner fixed pulleys, the second inner safety pincer in sequence and then is fixedly connected to one of the second inner holes.

7. The bidirectional ship lift of claim 4 , wherein a plurality of tension sensors are respectively provided at bottoms of the first outer holes, the second outer holes, the first inner holes and the second inner holes;
two ends of each of a plurality of inner steel cables and two ends of each of a plurality of outer steel cables are fixedly connected to the tension sensors; eight speed sensors are respectively provided at four corners of the first ship-carrying chamber and four corners of the second ship-carrying chamber; eight acceleration sensors are respectively provided beside the eight speed sensors; eight lidar ranging sensors are respectively provided beside the eight acceleration sensors; and the eight speed sensors, the eight acceleration sensors, the eight lidar ranging sensors and the tension sensors are electrically connected to an external central control computer; and
a plurality of water inlets and a plurality of water outlets are fixedly connected to an external water pump through water pipes; and a plura

Assignees

• Univ Zhejiang Ocean
• Univ Shanghai Maritime

Inventors

• Wang Huaming
• He Shi
• Chen Lin
• Wang Tao
• Liu Junmei
• Du Zhenhuang
• Wu Qiaorui

Classifications

• E02C5/00 Primary

  Mechanisms for lifting ships vertically (salvaging sunken vessels B63C7/00) · CPC title