CN219200320U

CN219200320U - Telescopic device for measuring center of ship shaft rudder system

Info

Publication number: CN219200320U
Application number: CN202222857628.6U
Authority: CN
Inventors: 李福江; 宋忠伟; 李鹏; 王成玉; 李岩; 曹宇
Original assignee: Dalian Shipbuilding Industry Co Ltd
Current assignee: Dalian Shipbuilding Industry Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-06-16
Anticipated expiration: 2032-10-28

Abstract

A telescopic device for measuring the center of a ship shaft rudder system is provided with three side sleeves, each three side sleeve is provided with three sleeves with equal lengths, one ends of the three sleeves are fixedly connected together to form a fixed point, reflection targets are arranged on the fixed point, the other ends of the three sleeves are arranged at equal intervals along the circumferential direction, and the angle formed by the adjacent sleeves is 120 degrees. A loop bar is nested in each loop bar, scales are marked on the loop bar, a plurality of bolts are arranged at equal intervals along the circumference of the sleeve near the sleeve opening, the bolts penetrate through the sleeve wall to be contacted with the loop bar, the end part of the free end of the loop bar is fixed with a magnet, and the loop bar is fixed on the inner wall of the rudder shaft through the magnet; a spring is arranged between the sleeve rod and the inner bottom of the sleeve. The device can hoist the cylinder with a certain inner diameter, has universality, simple structure and high safety, and has a mechanical locking function. When the tool is lifted, the tool is locked on the cylinder by means of gravity of the cylinder, and the mechanical locking function is added, so that the tool is safe and reliable.

Description

Telescopic device for measuring center of ship shaft rudder system

Technical Field

The utility model relates to the technical field of shaft rudder system butt joint in the ship construction process, in particular to a telescopic device for measuring the circle center of a ship shaft rudder system.

Background

In the stage of carrying and illuminating construction in a ship building shaft rudder system subsection dock, angle steel or vertical channel steel is required to be welded at a steering engine and a shaft hole in advance, the precise positioning operation is carried out on the shaft rudder system subsection in a manner of falling by a steel wire in the carrying and illuminating construction process, and the data measurement of the upper rudder hole and the lower rudder hole is required to be repeatedly carried out by using an overhead crane; the shafting segments are stretched for a long distance in a steel wire pulling mode, the data can be finally determined by repeatedly measuring the deviation value, the segments and the illumination data are adjusted according to the numerical value, and the precision requirement of tolerance data is met; when the construction is performed in the past, before the construction, operators need to pull steel wires in advance and stabilize wire weights so as to keep the wire weights absolutely stable, and then the offset data of the circle center is measured by using an overhead crane or a scaffold; in the illumination construction, the data measurement needs to be matched with the data movement of personnel in a steering engine room, and finally the reliability of the data is required to be achieved, and the construction operation can be completed by three persons in the construction; sometimes, the steel wire is extremely unstable due to weather, so that the error amount of data is increased; in the existing stage of dock carrying and shaft rudder system illumination construction process, the data requirements of shipmen are more strict, meanwhile, the steel wire falling method is too late, construction cannot be carried out in special weather, the precision is low, and the quality and the period of follow-up construction are seriously affected; in order to achieve the precision data detection of the segmented positioning of the rudder system and the illumination construction of the rudder system under the condition that a steel wire falling mode is not applicable, the prior resource and technical system are required to be used for less optimization, so that larger precision improvement can be achieved, and then the auxiliary device is designed.

Disclosure of Invention

In order to solve the problems, the utility model provides a telescopic device for measuring the center of a ship rudder system, which adopts the following technical scheme:

a telescopic device for measuring the center of a ship shaft rudder system is provided with three side sleeves, each three side sleeve is provided with three sleeves with equal lengths, one ends of the three sleeves are fixedly connected together to form a fixed point, reflection targets are arranged on the fixed point, the other ends of the three sleeves are arranged at equal intervals along the circumferential direction, and the angle formed by the adjacent sleeves is 120 degrees.

A loop bar is nested in each loop bar, scales are marked on the loop bar, a plurality of bolts are arranged at equal intervals along the circumference of the sleeve near the sleeve opening, the bolts penetrate through the sleeve wall to be contacted with the loop bar, the end part of the free end of the loop bar is fixed with a magnet, and the loop bar is fixed on the inner wall of the rudder shaft through the magnet; a spring is arranged between the sleeve rod and the inner bottom of the sleeve.

The telescopic device for measuring the center of the ship rudder system further comprises a scale mark extending from one end of the loop bar to the other end of the loop bar.

The telescopic device for measuring the center of the ship shaft rudder system is further characterized in that the lengths of the three sleeves are 400mm.

The telescopic device for measuring the center of the ship shaft rudder system is characterized in that 3 bolts are further arranged at the position close to the sleeve opening at equal intervals along the circumference of the sleeve.

The telescopic device for measuring the center of the ship shaft rudder system is characterized in that the sleeve is made of aluminum alloy.

The telescopic device for measuring the center of the ship rudder system is characterized in that the magnet is positioned at the center of the end part of the sleeve rod.

The utility model has the advantages that the three end points of the equiangular loop bar device are provided with the inner telescopic loop bars, the loop bars are provided with the scale size number, the top ends of the inner loop bars are provided with the magnet positioning top plates, the fixing effect of the magnets is utilized, and the adjustment of the device is convenient; meanwhile, the form of the loop bar protects the long-term use of the internal loop bar; the device is of an integrated fixing structure, 9 openings are formed in three end points, and the clamping screw is arranged to have large fixing and stabilizing pressure on the internal loop bar, so that the stability of the relative position of the device in use is ensured, and the measuring precision is greatly improved; the principle of the center of an equilateral right triangle is utilized, and a full-size reflecting sheet target is arranged at the position of a transverse loop bar, so that the deviation value of all-directional data of the center of a circle can be obtained once in measurement; the device can be used for measuring the deviation of the circle center in different ship types; the installation work can be completed by one person, so that the phenomenon of data errors of hanging wire drop and wire drawing is avoided, meanwhile, the construction difficulty is reduced, and the phenomenon that hanging wire drop cannot be carried out in windy and rainy days is avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic drawing of a loop bar construction;

FIG. 3 is a schematic illustration of use;

wherein: 1-sleeve, 2-loop bar, 3-magnet, 4-reflecting target, 5-bolt and 6-scale.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

A telescopic device for measuring the center of a ship rudder system is shown in fig. 1, and comprises three side sleeves, wherein the three side sleeves are provided with three sleeves with equal lengths, one ends of the three sleeves are fixedly connected together to form a fixed point, reflection targets are arranged on the fixed point, the other ends of the three sleeves are arranged at equal intervals along the circumferential direction, and the angle formed by the adjacent sleeves is 120 degrees.

The two inclined loop bars at the lower part are 370mm long by 50mm wide by 32mm thick, the vertical loop bar at the upper part is 460mm long by 50mm thick by 32mm thick, and the upper part is 370mm long from the folded angle part; the degree of the folding angle is 150 degrees, and the length of the folding angle is 50mm; the three end points of the equiangular loop bar are provided with an inner loop bar, the dimension of the loop bar is 375mmx, the width of the loop bar is 48mmx, the thickness of the loop bar is 30mm, scales are arranged on the loop bar, scale marks extend from one end of the loop bar to the other end of the loop bar (as shown in fig. 2), a rubber stabilizing cutting sleeve is arranged at the joint, and a magnet positioning top plate is arranged at the topmost end of the inner loop bar; the equiangular loop bar is provided with a plurality of clamping screws with the dimension phi of 10mm, the lower ends of the screws are provided with threaded bases, and the internal loop bar can be stabilized during clamping; the device is provided with a full-size reflection target at the transverse and vertical intersection, the center of the target is concentric with the transverse and vertical intersection of the device, and the front and the back of the device are provided with the reflection targets; the equiangular device is an integrally formed fixed structure loop bar.

As shown in fig. 3, when the device is used, all clamping screws on the device are loosened, the magnet positioning top plate at the top end of the transverse internal loop bar is adsorbed inside the measured circular structure, so that the scale readings of the internal loop bars at the two sides of the device are consistent, then the internal loop bar at the upper part of the device is adjusted, so that the magnet at the top end is adsorbed on the structure, the readings are checked, and the angle fine adjustment of the device is performed; as long as the sizes marked by the 3 internal loop bars are consistent, the actual position of the circle center of the structure can be determined at different angle positions, and detection in the construction process is implemented.

According to the equiangular type loop bar device, the inner telescopic loop bars are arranged at the three end points, the scale size number is arranged on the loop bars, the magnet positioning top plate is arranged at the top end of the inner loop bars, and the fixing effect of the magnets is utilized, so that the device is convenient to adjust; meanwhile, the form of the loop bar protects the long-term use of the internal loop bar; the device is of an integrated fixing structure, 9 openings are formed in three end points, and the clamping screw is arranged to have large fixing and stabilizing pressure on the internal loop bar, so that the stability of the relative position of the device in use is ensured, and the measuring precision is greatly improved; the principle of the center of an equilateral right triangle is utilized, and a full-size reflecting sheet target is arranged at the position of a transverse loop bar, so that the deviation value of all-directional data of the center of a circle can be obtained once in measurement; the device can be used for measuring the deviation of the circle center in different ship types; the installation work can be completed by one person, so that the phenomenon of data error of hanging wire drop and wire drawing is avoided, meanwhile, the construction difficulty is reduced, and the phenomenon that the wire hanging wire drop cannot be carried out in windy and rainy days is avoided.

Claims

1. A scalable device for measurement of boats and ships axle rudder system centre of a circle, its characterized in that: the three-side sleeve is provided with three sleeves (1) with equal lengths, one ends of the three sleeves are fixedly connected together to form a fixed point, reflection targets (4) are arranged on the fixed point, the other ends of the three sleeves are arranged at equal intervals along the circumferential direction, and the angles formed by the adjacent sleeves are 120 degrees;

each loop bar is internally nested with a loop bar (2), scales (6) are marked on the loop bar, a plurality of bolts (5) are arranged near the opening of the loop bar at equal intervals along the circumferential direction of the loop bar, the bolts penetrate through the wall of the loop bar to be contacted with the loop bar, the end part of the free end of the loop bar is fixedly provided with a magnet (3), and the loop bar is fixedly adsorbed on the inner wall of the rudder shaft through the magnet;

a spring is arranged between the sleeve rod and the inner bottom of the sleeve.

2. A telescopic device for centre of a ship rudder system according to claim 1, characterized in that: the scale marks extend from one end of the loop bar to the other end of the loop bar.

3. A telescopic device for centre of a ship rudder system according to claim 1, characterized in that: the three sleeves are 400mm in length.

4. A telescopic device for centre of a ship rudder system according to claim 1, characterized in that: 3 bolts are arranged at the position close to the sleeve opening and at equal intervals along the circumference of the sleeve.

5. A telescopic device for centre of a ship rudder system according to claim 1, characterized in that: the sleeve is made of aluminum alloy.

6. A telescopic device for centre of a ship rudder system according to claim 1, characterized in that: the magnet is positioned at the center of the end part of the loop bar.