Electric Diesel Engine Hydraulic Disk Ratio Full-Revolving Ship Tugboat Ferry Marine Propulsion Propellers Thruster

Specification

Propeller

A propeller is a device that relies on blades to rotate in air or water to convert the rotational power of the engine into propulsion. There can be two or more blades on the hub, and the back side of the blades is a spiral surface or a spiral surface. propeller. There are many types of propellers and are widely used, such as propellers for airplanes and ships.

Bow Thruster

Bow thruster refers to a device that assists the ship's steering. Generally, it is a propeller driven by an electric motor in the transverse pipe of the bow, which can discharge water on one side to the other side, and assist the steering of the ship by the reaction force of the water. When the ship leaves, docks or sails at low speed, the rudder has little effect, and the thruster can improve the maneuverability of the ship. Some are equipped with side pushers at the bow and stern to move the ship laterally or steer on the spot.

Picture

Docking inspection

(1) Drain the lubricating oil in the propeller hub and observe whether water enters the oil.

(2) The propeller shaft is also equipped with a sealing device, and its form is mostly Simplex type. Any cracks on the lip of the sealing ring, serious wear and aging, etc. should be replaced, and attention should be paid to the sealing performance.

(3) Check the fastening bolts and bolt anti-loosening devices of the blades and hubs.

(4) Check the sealing ring at the root of the blade (generally it should be replaced after 4 years).

(5) The propeller shaft bearings and drive shaft bearings are all rolling bearings. If they are found to be rusted, eroded, broken in the retainer, the rollers are severely worn or the rotation is not flexible, and the rotation is too loud, they should be replaced.

Effect

The side thruster is a special propulsion device that can generate lateral thrust (side thrust) of the ship. It is installed in the lateral guide tube below the waterline of the bow or stern, and the magnitude and direction of the thrust produced can be changed as required.

Generally, when a ship is berthing or leaving a wharf, crossing a canal, entering or exiting a sluice, or passing through a narrow waterway and crowded waters, one must drive slowly, and the other is to change its course frequently with a rudder. However, the slower the ship speed, the worse the rudder effect will be, which brings difficulties to ship maneuvering. Especially container ships, ro-ro ships, timber ships, etc. with a large wind-affected area, when navigating at low speeds, only relying on the rudder effect to change the course often cannot meet the requirements, so tugboats have to be used to help.

Chongqing Juvi marine machinery company is an integrated marine technology company that presently specializes in product design, production, and sales.

The Juvi has both, a professional technical staff and strong sales team. Our products have sold to regions as far away as Europe, North America and Asia, among others. Furthermore, our professional technical staffs are able to provide our clients with the perfect solution at the perfect time, while also offering consummate service specifically catered to the individual needs of each and every client. We regularly introduce the most advanced foreign products and technologies into the domestic market and routinely share the latest in scientific and technological advancements with related domestic industries.

Juvi company is administered by the marine equipment production systems. In addition, our company has established longstanding partnerships with other outstanding firms in our industry, thus achieving both technical collaboration and the very best aspects of product sharing, using them to the advantage of our customer base. Every factory that our partner with has passed the CCS,ABS,DNV,LR,NK,RINA,ISO9002, TS16949, UL and other related systems authentication.

More than 10 years of accumulated experience, high-quality products, coupled with our philosophy of absolute integrity in all business dealings have earned us unanimous praise from old and new clients alike, as well as a distinctive reputation in the industry. We look forward to providing your firm with our patented brand of reliable product quality and superior service, just when you need it.