CN202295273U

CN202295273U - Separated type drawing device for tailshaft

Info

Publication number: CN202295273U
Application number: CN2011203616322U
Authority: CN
Inventors: 张云
Original assignee: JIANGDONG SHIPYARD OF CHINA CHANGJIANG NATIONAL SHIPPING GROUP
Current assignee: JIANGDONG SHIPYARD OF CHINA CHANGJIANG NATIONAL SHIPPING GROUP
Priority date: 2011-09-24
Filing date: 2011-09-24
Publication date: 2012-07-04
Anticipated expiration: 2021-09-24

Abstract

The utility model discloses a separated type drawing device for a tailshaft. The separated type drawing device comprises a drawing rod; the front end of the drawing rod is provided with a spherical drawing hole; drawing soft belts are connected with the interior of the spherical drawing hole; the rear end of the drawing rod is fixedly connected with a separated type drawing seat; the other end of the separated type drawing seat is fixedly connected with the end face of the tailshaft; and the tailshaft is extended into a tail pipe. The soft belts are matched with the drawing device for the tailshaft to ensure that fine tuning of a three-dimensional coordinate is realized when the tailshaft enters a cabin, the soft landing of the tailshaft in a tail pipe assembly can be realized, and the separated type drawing device for the tailshaft is high in efficiency and accuracy, and low in investment, and can be used as a tool which can be used repeatedly.

Description

The separation type draw gear of tailing axle

Technical field

The utility model relates to the tailing axle installing area, specifically belongs to the separation type draw gear of tailing axle.

Background technology

In building 35000 tons of bulge carriers, successfully realized " pspc " new coating standard.Yet this ship also has up-to-date design feature, and the optimal design of promptly energy-conservation and environmental protection adopts the two medium-tight of gas-liquid such as the tail pipe assembly, is the prominent example of realizing the zero leakage of boats and ships Seal Oil.Because the technological design of the assembly of tail pipe, installing applies for checking and examination with internal field pressure test and warp " BV " classification society passes through.But, real ship how to make in installing on the oblique building berth of the nearly 10 tons prop shaft of weight in the 1:18 gradient in the ship to stern about 4.3 meters long tail pipe assembly of accurately packing into; Guarantee tailing axle get into total backlash have only 0.7 ~ 0.9mm before. in the rear bearing hole; And the most important thing is to make bearing to have any trace phenomenon of drawing to take place, its technology difficulty is bigger.The tailing axle method of advancing that past is traditional is: prop shaft is worked winching in the cabin, be positioned over purpose made and advance on the small rail car of tailing axle, slowly fill in the tail pipe assembly.Because the cabin trailing space is narrow and small, the distance of small rail car is shorter, adds that tailing axle rigidity on dolly is strong, and fine-tuning coordinate is restricted, and often causes the bearing clashing and breaking easily, produces rejection and waste, even influences the cycle node of launching.

The utility model content

The purpose of the utility model provides a kind of separation type draw gear of tailing axle; Adopt soft band and draw a draw gear and cooperate the fine setting that can realize three-dimensional coordinate when making tailing axle enter the cabin; Realize " soft landing " of tailing axle in the tail pipe assembly, have the efficient height, precision is accurate; Small investment can be used as reusable frock.

The technical scheme of the utility model is following:

The separation type draw gear of tailing axle; Include draw bar; The front end of said draw bar has the sphere towing pad, is connecting in the sphere towing pad to draw soft band, and the rear end of draw bar is fixedly connected with the separation type traction seat; Separation type traction seat other end captive joint the stern tube shaft end face, and said stern tube shaft stretches in the tail pipe.

Described draw bar is a solid drawn pipe.

The basic axle journal of the ship prop shaft of the utility model is 420mm; Flange diameter is 900mm; The length overall of axle is 6473mm, and nt wt net weight is that this axle of 9260kg. must assurance accurately pass the sealing oil pipe in the tail pipe, cable and support and the gap less forward and backward bearing of temperature sensor in assembly that tracheae reaches relevant head and the tail bearing.

The beneficial effect of the utility model is following:

1. adopt the separation type array configuration, guarantee that process Installation is convenient, also effectively tailing axle is advanced the cabin preceding thread simultaneously and protect.

2. because the bending resistant section coefficient Ws=∏ D3/32 of first steel; And the bending resistant section coefficient Ws=∏ D3/32 [1-(d/D) 4] of steel pipe; So being chosen in sectional area, we equate that bending resistant section coefficient under the situation is a draw bar greater than the solid drawn pipe spare of 3.5 times of first steel, good rigidly, and indeformable.

3. the design assurance of separation type traction seat and tailing axle are processed the precision of end face; Concentricity is consistent; Draw gear produces vertical component on tailing axle; Decomposition is stressed at the end face of tailing axle, and the static friction force that produces like this is bigger, has guaranteed that effectively the screw thread of axle head in the process of traction tailing axle is protected effectively.

4. the soft band that is connected in axis of traction adopts the light projector in multiple spot traction and the ship to detect, and flexible strong, the self trim function is strong.Particularly tailing axle is in filling in the process of tail pipe, and center of gravity is very easily collided in continuous variation.This axis of traction makes the tailing axle center of gravity remain balance through the adjustment of soft band gravity direction.

The utility model separation type draw gear advances tailing axle technology relatively through effectively protect the precision of tail pipe front and back bearings in the installation of the following water process of six boats and ships with tradition, has the efficient height, and precision is accurate, and small investment can be used as reusable frock.On oblique building berth, drawn 10 tons the tailing axle of weighing smoothly, all must go abroad classification society and shipowner upcheck and praise.Realized that our factory outlet boats and ships axle rudder is whole production domesticization of process design.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The specific embodiment

Referring to accompanying drawing, the separation type draw gear of tailing axle includes draw bar 1; Draw bar is a solid drawn pipe; The front end of draw bar 1 has sphere towing pad 2, is connecting in the sphere towing pad 2 to draw softly to be with 3, and the rear end of draw bar is fixedly connected with separation type traction seat 4; Separation type traction seat 4 other end captive joints stern tube shaft 5 end faces, and stern tube shaft 5 stretches in the tail pipe 6.

Claims

1. the separation type draw gear of tailing axle; Include draw bar; It is characterized in that: the front end of said draw bar has the sphere towing pad, is connecting in the sphere towing pad to draw soft band, and the rear end of draw bar is fixedly connected with the separation type traction seat; Separation type traction seat other end captive joint the stern tube shaft end face, and said stern tube shaft stretches in the tail pipe.

2. the separation type draw gear of tailing axle according to claim 1, it is characterized in that: described draw bar is a solid drawn pipe.