DESC:FIELD OF INVENTION:
[001] The present invention generally relates to the tool used in the process for the shipbuilding. More specifically, the present invention relates to a shaft line and steering alignment tool for center lining the machining and alignment axis of shaft line and steering components in submarine.
BACKGROUND AND PRIOR ART:
[002] Shafting alignment is an important process for ship building. Through the shafting, power is transferred from the main engine to the propeller which contributing to the ship movement. The shaft is an important part of the power unit that transmits the power of the main engine to the propeller and contributes to the movement of the ship. Shaft alignment quality and vibration characteristics are two important indicators of the overall quality of modern marine shafts. Poor alignment will cause a variety of shaft safety issues, including excessive vibration, high bearing temperatures, abnormal bearing abrasion, and even shaft fracture or crankshaft deformation, which will negatively impact a ship's dependability, safety, and health. The transverse propeller, main engine, unbalanced rotor inertia force, and misaligned excitation all work together to produce the spinning vibration of the shafting. The support characteristics and shifting alignment quality will be badly impacted as a result of excessive whirling vibration, which will also result in shaft resonance and abnormal stern bearing abrasion. As a result, the ship's safety and stealth would be severely compromised.

[003] CN107764172A discloses a kind of rudder center line of shafting piano wire measuring method, the described method comprises the following steps:Step 1: take a measurement frock;Step 2: during measurement, micrometer extension bar end is set to be contacted with hull steel-casting, micrometer microdrum end contacts with the piano wire being connected on hull, so as to form path, connects circuit indicator and lights, now read the reading of micrometer. A kind of rudder center line of shafting piano wire measuring method of the present invention, it is simple to operate, and in measurement, when micrometer touches the piano wire, the circuit is connected in frock, small bulbs electrified light emitting, by constantly adjusting, can adjust micrometer to being just struck against steel wire Lamp is like bright non-bright, measurement error is avoided, the similar measurement accuracy and efficiency for being related to piano wire can be greatly improved.

[004] US3580211A discloses a method of aligning the shaft of a main engine with the centerline of the propeller shaft in which the main bearing pins of the crankshaft are made hollow to permit sighting through the crankshaft and the bearings for alignment of all of the elements. The elements are aligned approximately by threading a piano wire through the elements and are more precisely adjusted by visual alignment after removal of the wire.

[005] The above given prior arts discloses the use of piano wire as a reference line for the centering of the shaft line and other components. The piano wire is tensioned to a standard amount by fixing at one end and having a weight over a pulley at the other end. Then the distances from the wire to the bearings are measured, and allowance is made for the sagging of the wire.

[006] The piano wire screen method mentioned in the prior art is used for aligning and center lining the shaft line and steer within the submarine. The alignment procedure by using piano wire is a laborious and drawn-out process that can take up to 3–4 days at times. The piano wire, which is around 5-8 m in length, tends to sag during this procedure due to temperature, time, and other variables that are out of human control. The readings that are acquired using piano wire have a variance of 06-08 microns, which is unacceptable for shaft line and steering alignment.

[007] The present invention overcomes the drawbacks of the above-mentioned prior arts. However, there are many shortcomings with the above-mentioned prior arts. The present invention helps to overcome the shortcomings of the designs of the above-mentioned prior arts.
SUMMARY OF THE INVENTION:
[008] In order to solve the above-mentioned problems, an alignment tool of the present invention resolved the sagging problem faced while alignment of piano wire. Through the alignment tool, the reading does not alter, even after several hours or days. The alignment tool aids in maintaining the measured reading and prevents the piano wire from sagging, which assists in aligning activities with the highest degree of precision.

[009] It is an object of embodiments of the present invention to obviate one or more of the problems associated with the prior art, whether identified herein or elsewhere. In particular, it is an object of embodiments of the present invention to provide a shaft line and steering alignment tool which is used to centreline the machining and alignment axis of the shaft line and steering components in the submarine while using the piano wire process which provides the high precision and solves the problem of sagging of piano wire during the alignment process.

[010] The principal object of the present invention is to provide a shaft line and steering alignment tool for center lining the machining and alignment axis of shaft line and steering components in the submarine.

[011] Another object of the present invention is to provide a shaft line and steering alignment tool that also can be used for any kind of industry which undertaking shaft alignment using piano wire.

[012] One of the objects of the present invention is to provide the shaft line and steering alignment tool which strengthens the piano wire screen and overcomes the sagging issue.

[013] Another object of the present invention is shortening the time of shaft alignment through a shaft line and steering alignment tool.

[014] Yet another object of the present invention is to provide the highest precision during alignment by using the shaft line and steering alignment tool.

[015] Another object of the present invention is to provide the shaft line and steering alignment tool that overcomes the sagging issue while using piano wire for alignment.

[016] The present invention pertains to a shaft line and steering alignment tool designed for aligning the machining and alignment axis of shaft line and steering components in submarines.

[017] In an aspect of the present invention, a shaft line and steering alignment tool comprising an upper plate having a plurality of adjusting screws, a lower plate having a plurality of setting screws with the washers, wherein the upper plate is mounted on the said lower plate.

[018] In an aspect of the present invention, the upper plate and lower plate are both constructed from MS steel material.

[019] In an aspect of the present invention, the upper plate is welded to the lower plate.

[020] In an aspect of the present invention, the plurality of adjusting screws on the upper plate is configured to facilitate precise adjustments during the alignment.

[021] In an aspect of the present invention, the plurality of setting screws with washers on the lower plate is configured to facilitate the alignment of the piano wire.
BRIEF DESCRIPTION OF DRAWINGS:
[022] The invention has other advantages and features which will be more readily apparent from the following detailed description of the invention and the appended claims, when taken in conjunction with the accompanying drawings, in which:

Figure 1 illustrates the perspective view of the shaft line and steering alignment tool.
DETAILED DESCRIPTION OF THE INVENTION:
[023] The invention is described herein in detail with the help of figures appended at the end of the specification. The figures illustrate the preferred embodiment as well as other embodiments that define the scope of the present invention. However, it may be understood that the figures presented herein are intended to exemplify the scope of the invention only. The person skilled in art may note that by no means the figures limit the scope of the invention. Any variation in the drawings by any other person will be falling in the scope of the present invention.

[024] Throughout the specification and claims, the following terms take the meanings explicitly associated herein unless the context clearly dictates otherwise. The meaning of "a", "an", and "the" include plural references. The meaning of "in" includes "in" and "on." Referring to the drawings, like numbers indicate like parts throughout the views. Additionally, a reference to the singular includes a reference to the plural unless otherwise stated or inconsistent with the disclosure herein.

[025] The present invention discloses a shaft line and steering alignment tool for center lining the machining and alignment axis of the shaft line and steering components in the submarine. The alignment tool is used to strengthen the piano wire during the alignment process to reduce the sagging of the piano wire due to temperature, time, or various other factors.

[026] As illustrated in Figure 1, the shaft line and steering alignment tool 100 comprises an upper plate 1, a lower plate 2, a plurality of adjusting screws (3A,3B,3C,3D), and a plurality of setting screws with the washers (4A,4B,4C,4D). The upper plate 1 is mounted on top of the lower plate 2. The upper plate 1 comprises the plurality of adjusting screws (3A,3B,3C,3D). The lower plate 2 consists of a plurality of setting screws with the washers (4A,4B,4C,4D). The piano wire is aligned with the help of the plurality of setting screws (4A,4B,4C,4D) located on the lower plate 2.

[027] In a preferred embodiment, the shaft line and steering alignment tool 100 comprises the upper plate 1 and the lower plate 2 for the alignment of the piano wire. The upper plate 1 is connected to the lower plate 2 through welding.

[028] In an embodiment, the shaft line and steering alignment tool 100 is employed to center line the machining and alignment axis of the shaft line and steering components in submarines. The plurality of adjusting screws (3A,3B,3C,3D) on the upper plate 1 allow for meticulous adjustments, while the plurality of setting screws with the washers (4A,4B,4C,4D) on the lower plate 2 secure the piano wire in a stabilized position, preventing any sagging that may occur due to external factors.

[029] In an embodiment, the upper plate 1 and the lower plate 2 are made of MS steel material.

[030] In an embodiment of the present invention, the upper plate 1 comprises the plurality of adjusting screws (3A,3B,3C,3D).

[031] In an embodiment, the lower plate 2 consists of the plurality of setting screws with washers (4A,4B,4C,4D) for alignment of the piano wire.

[032] Although a particular exemplary embodiment of the invention has been disclosed in detail for illustrative purposes, it will be recognized by those skilled in the art that variations or modifications of the disclosed invention, including the rearrangement in the configurations of the parts, changes in steps and their sequences may be possible. Accordingly, the invention is intended to embrace all such alternatives, modifications, and variations as may fall within the spirit and scope of the present invention.

[033] The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching.
ADVANTAGES OF THE INVENTION:
[034] The present invention provides a shaft line and steering alignment tool that prevents the sagging of the wire, ensuring a stable and reliable alignment.

[035] The present invention provides a shaft line and steering alignment tool that reduces the need for constant readjustments resulting in a time-saving and less labor-intensive alignment process.

[036] The present invention provides a shaft line and steering alignment tool that contributes to accurate and consistent readings during the alignment process.
,CLAIMS:1. A shaft line and steering alignment tool 100, comprising:
an upper plate 1 having a plurality of adjusting screws (3A,3B,3C,3D); and
a lower plate 2 having a plurality of setting screws with the washers (4A,4B,4C,4D);
wherein, the upper plate 1 is mounted on the said lower plate 2.
2. The shaft line and steering alignment tool 100 as claimed in claim 1, wherein upper plate 1 and lower plate 2 are both constructed from MS steel material.
3. The shaft line and steering alignment tool 100 as claimed in claim 1, wherein the upper plate 1 is welded to the lower plate 2.
4. The shaft line and steering alignment tool 100 as claimed in claim 1, the plurality of adjusting screws (3A,3B,3C,3D) on the upper plate 1 is configured to facilitate precise adjustments during the alignment.
5. The shaft line and steering alignment tool 100 as claimed in claim 1, the plurality of setting screws with washers (4A,4B,4C,4D) on the lower plate 2 is configured to facilitate the alignment of the piano wire.