CN202124112U

CN202124112U - Lateral thrust adjustable propeller

Info

Publication number: CN202124112U
Application number: CN2011201035419U
Authority: CN
Inventors: 李勇
Original assignee: Hangzhou Advance Masson Propulsion Co Ltd
Current assignee: Hangzhou Advance Masson Propulsion Co Ltd
Priority date: 2011-04-11
Filing date: 2011-04-11
Publication date: 2012-01-25
Anticipated expiration: 2021-04-11

Abstract

The utility model relates to a ship propeller, in particular to a lateral thrust adjustable propeller which comprises a transmission shaft; an internal oil tube is arranged in the transmission shaft, one end of the internal oil tube is connected with an oil distributor, and the other end is connected with a piston in an oil cylinder; a guide frame is externally sleeved on the middle part of the internal oil tube; a sliding slot is formed on the guide frame; a slide block is arranged in the sliding slot; the slide block is nested on a crank pin; the crank pin is connected with the bottom of a crank disc; the slide block, the crank pin and the sliding slot are movably connected; and blades are fixedly connected onto the crank disc. The lateral thrust adjustable propeller provided by the utility model has the advantages that an ordinary AC asynchronous motor can be adopted, so that the cost is low; lateral thruster for pitch-adjusting of a propeller maintains in a running state, so that the motor can be prevented from being started frequently, the wear and tear of the motor is reduced, and the reliability of the system is enhanced; the control is reliable and simple, and the lateral thrust adjustable propeller is favorable for accomplishing stepless control; and the requirement for high maneuverability of ships can be satisfied.

Description

The thruster controllable pitch propeller

Technical field

The utility model relates to propeller for vessels, is specifically related to a kind of thruster controllable pitch propeller.

Background technology

Manoevreability and operability when further improving ship's navigation, side thruster is widely used on all kinds of boats and ships at present.The past thruster only is used for assisting operating modes such as landing pier, and the thruster time used is shorter like this, is not too high to the requirement of controlling, and need not use stepless control.Along with the continuous development of science and technology, the mankind march to the deep-sea, make that the dynamic positioning of vessels system is more and more paid attention to, and control technology is also had higher requirement.For example some marine operation boats and ships (marine research ship, semi-submerged ship etc.) require thruster to locate by auxiliary vessel, and thruster must use stepless control like this.

At present relatively more commonly used is the fixed pitch side thruster, and this thruster then must be used AC variable frequency asynchronous electrical motor and frequency converter if satisfy stepless control, changes rotating speed, to satisfy different thrust requirements.This control method price comparison is expensive.The dynamic positioning of vessels system requirements can start thruster at any time and adjust position of ship, and the period of service of thruster can be long; Number of times is many, if use spacing oar thruster, because spacing oar thruster can't guarantee the zero thrust when electric motor starting; During each work; All necessary starter motor behind the end-of-job, must must stop motor.This loss to motor is bigger, has shortened the useful life of thruster.

Summary of the invention

Exist to the controllable pitch propeller of prior art to cost an arm and a leg, to control inconvenient defective, the utility model provides a kind of control easy, cheap, can maintain operative condition always and produces the thruster controllable pitch propeller of zero thrust.

For realizing the foregoing invention purpose, the utility model adopts following technical scheme:

The thruster controllable pitch propeller comprises transmission shaft, in the described transmission shaft inner oil tube is set; Inner oil tube one end links to each other with oil distributor, and the inner oil tube other end is connected with in-oil cylinder piston, inner oil tube middle part overcoat saddle; Saddle has chute, and slide block is arranged in the chute, and slide block set is on crank pin; Crank pin is connected the bottom of crank disc, and described slide block, crank pin and chute are done flexible connection, captive joint blade on the crank disc.Power fluid through the circulation of the space between inner oil tube and the transmission shaft back; The promotion piston seesaws; Thereby drive saddle contact campaign vertically, chute promotes slide block and in groove, slides, and crank pin drives crank disc and rotates together; The rotation of crank disc drives the angle change of blade, realizes the change of blade pitch.

The advantage of the thruster controllable pitch propeller of the utility model has:

1, motor can adopt the interchange normal asynchronous, and is cheap; Need not consider motor speed and the control that turns to.

2, adjustable pitch propeller thrust when zero pitch is zero characteristic, can guarantee that the tuning for Controllable Pitch Propeller thruster maintains running state all the time, has avoided frequent starter motor, has reduced the loss to motor, has increased the reliability of system.

3, change the thrust size through control blade pitch, control is reliable, simple, helps realizing stepless control, and the high maneuverability that satisfies boats and ships can requirement.

Description of drawings

Fig. 1 is the structural representation of embodiment.

Specific embodiment

Below in conjunction with the accompanying drawing 1 and the specific embodiment the utility model is described in further detail:

The thruster controllable pitch propeller, as shown in Figure 1, comprise transmission shaft 10, inner oil tube 9 is set in the transmission shaft 10; Inner oil tube 9 one ends link to each other with oil distributor 14, and inner oil tube 9 other ends are connected inner oil tube 9 middle part overcoat saddles 8 with oil cylinder 1 interior piston 2; Saddle 8 has chute 15, and slide block 7 is arranged in the chute 15, and slide block 7 is enclosed within on the crank pin 6; Crank pin 6 is connected the bottom of crank disc 4, and described slide block 7, crank pin 6 and chute 15 are done flexible connection, captive joint blade 5 on the crank disc 4.Exchanging normal asynchronous is connected on the imput shaft 13 through imput shaft coupler 11.Hydraulic oil pump is connected with oil distributor 14.

When power fluid process inner oil tube 9 endoporus arrival oil cylinder 1 rear chamber, power fluid promotes piston 2 and travels forward, and piston 2 promotes saddles 8 and travels forward, and the hydraulic oil of oil cylinder front chamber circulates through the space between inner oil tube 9 and the transmission shaft 10 and returns; Space between power fluid process inner oil tube 9 and transmission shaft 10 arrives cylinder body front chamber, and power fluid promotes piston 2 and moves backward, and piston 2 pulling saddles 8 move backward, and the hydraulic oil of oil cylinder rear chamber circulates through inner oil tube 9 endoporus and returns.When saddle 8 is reciprocating along axis; Chute 15 on the outer wall of center promotes slide block 7 and in groove, slides; Crank pin 6 on the crank disc 4 disk roots is inserted on the slide block 7 and drives crank disc 4 and rotate together; Blade is fixedly mounted on the crank disc 4, and the rotation of crank disc 4 drives the angle change of blade, realizes the change of blade pitch.

Claims

1. the thruster controllable pitch propeller comprises transmission shaft (10), it is characterized in that: inner oil tube (9) is set in the described transmission shaft (10); Inner oil tube (9) one ends link to each other with oil distributor (14), and inner oil tube (9) other end is connected with the interior piston (2) of oil cylinder (1), inner oil tube (9) middle part overcoat saddle (8); Saddle (8) has chute (15); Slide block (7) is arranged in the chute (15), and slide block (7) is enclosed within on the crank pin (6), and crank pin (6) is connected the bottom of crank disc (4); Described slide block (7), crank pin (6) and chute (15) flexibly connect, and crank disc (4) is gone up captive joint blade (5).