KR101035192B1 - Cutting device for inside diameter of ship's rudder - Google Patents

Abstract

PURPOSE: An apparatus for processing the inner diameter of a rudder for a ship is provided to improve reliability of a product by the improvement of roughness on the inner diameter of the rudder. CONSTITUTION: An apparatus for processing the inner diameter of a rudder for a ship comprises a boring bar(100), a rotating unit(200), a moving body unit(300), a height adjusting unit(400), and a translational motion unit(500). The rotating unit supports the boring bar at a fixed height and rotates the boring bar. The moving body unit comprises a moveable member(310), a support member(320), a bite joining member, and a screw member. The moveable member moves along the longitudinal direction of the boring bar. The bite joining member is inserted into and extracted from a hollow portion of the support member along the height direction of the support member. A finish cutting bite is coupled with the bite joining member. The screw member is placed inside a second space portion of the boring bar. The height adjusting unit inserts and extracts the bite joining member along the height direction of the support member. The translational motion unit linearly reciprocates the moving member along the longitudinal direction of the boring bar.

Description

Rudder inner diameter processing equipment for ships {CUTTING DEVICE FOR INSIDE DIAMETER OF SHIP'S RUDDER}

The present invention relates to a rudder inner diameter processing apparatus for ships, and more specifically, to reduce the time required to process the inner diameter of the rudder (Rudder) which is provided at the rear of the vessel to adjust the direction of travel of the vessel and at the same time roughness of the rudder inner diameter The present invention relates to a ship rudder inner diameter processing apparatus capable of improving reliability of a product by improving its reliability.

In general, the rudder (rudder) is pivotally installed at the rear of the ship, is connected to the rudder stock (rudder stock) to control the movement of the rudder serves to steer the direction of the propulsion obtained by the propeller installed close. That is, the lower end of the ship is mounted with the propeller connected to the engine inside, thereby the propeller is rotated by receiving power from the engine.

The rotation of the propeller causes the fluid to flow backwards, and the ship moves forward by gaining propulsion in reaction to fluid movement. This propulsion force is steered by a rudder placed close to the rear of the propeller, allowing the ship to move in the desired direction.

1 is a perspective view showing the structure of a general rudder.

As shown in the figure, the rudder 10 has a predetermined shape and is connected to the plate unit 11 welded to a plurality of iron plates or the like, and the first coupling member 13 coupled to the upper end of the plate unit 11 by welding. ) And a second coupling member 15 coupled to the lower side of the first coupling member 13 by welding.

Each of the coupling members 13 and 15 is formed in a predetermined portion of the plate unit 11 after casting using iron. Each of the coupling holes 13a and 15a tapered in each of the coupling members 13 and 15 is inserted and coupled to each of the upper and lower pintles 16 and 17.

Each pintle 16, 17 is rotatably coupled coaxially with respect to the frame fixed to the vessel, that is, a fixing cone (not shown). That is, each of the upper and lower pintles 16 and 17 constitutes a rotational axis of the rudder 10 with respect to the ship, and is installed coaxially.

In addition, a rudder stock (not shown) for turning the rudder 10 around the pintles 16 and 17, that is, a member for adjusting the attitude of the rudder 10 on the upper surface of the first coupling member 11. Is combined.

Here, the center axis of rotation of the rudder stock should be installed to be coaxial, that is, aligned with the central axis of each pintle (16, 17). To this end, each pinhole 16, 17 should be precisely processed so that the center axis of each of the coupling holes 13a, 15a to which the pinholes 16 and 17a are aligned.

However, as described above, each of the coupling holes 13a and 15a must be sequentially processed using a separate processing device, which not only takes a long processing time but also makes it difficult to secure processing precision.

That is, when the rudder 10 is a large vessel of 40,000 tons or more, the size of the coupling holes 13a and 15a to be processed is so large that the coupling holes 13a and 15a are partially processed. There is no processing device capable of collectively processing the entire (13a) and (15a), and even if it is, there is a problem that it is not sufficient to process a precise machining work quickly in a short time.

The object of the present invention devised in view of the above point is to reduce the time required to process the inner diameter of the rudder to adjust the direction of the ship is provided at the rear of the vessel and at the same time improve the roughness of the rudder inner diameter It is to provide an internal rudder processing apparatus for ships that can enhance the reliability of the product.

Marine rudder diameter processing apparatus for achieving the object of the present invention as described above, Boring bar having a predetermined length each formed on the upper and lower surfaces facing each other along the height direction; A rotation driving unit provided at both ends of the boring bar to support the boring bar at a predetermined height and to rotate the boring bar; A rectangular moving member inserted into an outer circumferential surface of the boring bar so as to be movable along the longitudinal direction of the boring bar, a support member having a rectangular pillar shape provided on an upper surface of the moving member and having a hollow formed at the center thereof, A bite fastening member provided to be pulled out along the height direction of the support member in the hollow, and to which the finishing bite is fastened, and fixed to an inner side of the movable member, disposed in the second space, and having a screw thread formed therein A moving body portion formed of a screw member; A height adjusting part fixed to one side of the movable member and disposed in the first space part to adjust the height of the finishing bite by allowing the bite fastening member to be pulled out along the height direction of the support member; A translation unit fixedly coupled to one side of the boring bar to allow the movable member to linearly reciprocate along the length of the boring bar; Characterized in that configured to include.

Here, both side surfaces of the boring bar which are in contact with the movable member are provided with guide grooves extending along the longitudinal direction of the boring bar and recessed inward, and the guides are provided on the inner side of the movable member which is in contact with both sides of the boring bar. It is characterized in that the guide protrusion which is formed to protrude to be inserted into the groove.

The height adjusting part is fixedly coupled to one side of the moving member, the first servo motor disposed in the first space part, a first bevel spiral gear that rotates in engagement with a rotation shaft of the first servo motor, and the And a second bevel spiral gear that is engaged with the first bevel spiral gear and rotates and penetrates the bottom surface of the bite fastening member to screw the bite fastening member and its rotating shaft to each other.

In addition, a plurality of reduction gears may be further provided between the rotation shaft of the first servo motor and the rotation shaft of the first bevel spiral gear.

In addition, the translation unit is engaged with the rotation axis of the second servo motor and the second servo motor fixedly coupled to the lower surface of the boring bar and the movement A screw thread is formed on an outer circumferential surface thereof, the screw shaft is fastened to the screw member, and extends to a predetermined length along the longitudinal direction of the boring bar.

In addition, a plurality of reduction gears may be further provided between the rotation shaft of the second servo motor and the screw shaft.

In addition, the rudder diameter processing apparatus for ships is electrically connected to a separate numerical control unit is characterized in that the rotational speed of the boring bar, the rotational speed of the first servo motor and the rotational speed of the second servo motor are numerically controlled.

As described above, the ship rudder inner diameter processing apparatus according to the present invention is provided at the rear of the ship to shorten the time required to process the inner diameter of the rudder (Rudder) to adjust the direction of travel of the vessel and at the same time improve the roughness of the rudder inner diameter. This can improve the reliability of the product.

1 is a perspective view showing the structure of a general rudder,
Figure 2 is a side view showing the structure of a ship rudder inner diameter processing apparatus according to an embodiment of the present invention,
3 is a cross-sectional view taken along the line 'III-III' of FIG. 2,
Figure 4 is an enlarged cross-sectional view showing an enlarged structure of the translational motion of the rudder rudder processing apparatus for ships according to an embodiment of the present invention,
Figure 5 is an enlarged cross-sectional view showing an enlarged structure of the height adjusting portion of the rudder rudder processing apparatus for ships according to an embodiment of the present invention.

Hereinafter, a ship rudder inner diameter processing apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a side view showing the structure of the internal rudder processing apparatus for ships according to an embodiment of the present invention, Figure 3 is a cross-sectional view taken along the line 'III-III' of Figure 2, Figure 4 is an embodiment of the present invention 5 is an enlarged cross-sectional view illustrating an enlarged structure of a translational motion part of a ship rudder inner diameter processing apparatus according to an example, and FIG. 5 is an enlarged cross-sectional view illustrating an enlarged structure of a height adjusting unit of a marine rudder diameter processing apparatus according to an embodiment of the present invention. to be.

As shown in these drawings, in the marine rudder processing apparatus according to an embodiment of the present invention, the first space portion 110 and the second space portion 120 are formed on the upper and lower surfaces facing each other along the height direction, respectively. Boring bar 100 having a predetermined length, and the rotary drive unit 200 provided at both ends of the boring bar 100 to support the boring bar 100 to be positioned at a constant height and to rotate the boring bar 100 and In addition, a rectangular moving member 310 is inserted into the outer circumferential surface of the boring bar 100 so as to be movable along the longitudinal direction of the boring bar 100, and is provided on the upper surface of the moving member 310, and a hollow 321 is formed at the center thereof. Byte fastening member 330, which is formed with a rectangular pillar-shaped support member 320 and a hollow portion of the support member 320 to be pulled out along the height direction of the support member 320 to fasten the finishing bite 1. ) And the second space part 1 fixed to the inner surface of the moving member 310. 20 is disposed in the moving body portion 300 consisting of a screw member 340 is formed on the inner surface of the screw member 340, fixed to one side of the moving member 310 is disposed in the first space portion 110 and the bite fastening member ( The height adjusting part 400 for adjusting the height of the finishing bite 1 by allowing the 300 to be pulled out along the height direction of the supporting member 320 and the movable member fixedly coupled to one side of the boring bar 100. 310 is configured to include a translation unit 500 to enable a linear reciprocating motion along the longitudinal direction of the boring bar (100).

Boring bar 100 is a member having a substantially 'H' cross-section cross-section is selectively determined according to the inner diameter of the rudder to be processed, both ends thereof are formed in a cylindrical shape, the rotary drive unit 200 to be described later It is inserted inside of.

The upper and lower surfaces of the boring bar 100 are provided with a first space portion 110 and a second space portion 120, respectively, and the height adjusting portion (1) in the first space portion 110 and the second space portion 120, respectively. 400 and a portion of the translation unit 500 is positioned, the guide groove 130 is formed in both sides extending in the longitudinal direction and recessed to a predetermined depth.

The rotary drive unit 200 supports the boring bar 100 to a predetermined height and at the same time both ends of the boring bar 100 are inserted so that the permanent magnet 210 and the coils are wound around the bobbin ( Since it is configured to have the same configuration as the internal structure of a general electric motor composed of 220, it can be seen that the boring bar 100 corresponds to the rotation axis of the general electric motor.

The movable body part 300 is provided on the upper surface of the movable member 310 and the rectangular member is inserted into the outer peripheral surface of the boring bar 100 to be movable along the longitudinal direction of the boring bar 100, the The support member 320 is formed in a square pillar shape having a hollow 321 at the center thereof, and is provided in the hollow 321 of the support member 320 along the height direction of the support member 320 to be pulled out and finished. 1) is fastened to the fastening member 330 is fastened, and is fixed to the inner surface of the moving member 310 is disposed in the second space portion 120 is composed of a screw member 340 with a screw thread formed on the inner surface.

The moving member 300 is a member having a cross-section having an approximately 'ㅁ' shape and is movably coupled to the outer circumferential surface of the boring bar 100 along the longitudinal direction of the boring bar 100 and moves in contact with both side surfaces of the boring bar 100. The inner surface of the member 310 is provided with a guide protrusion 311 is inserted into the guide groove 130 to protrude so as to guide the movement of the moving member 300.

The upper surface of the moving member 300 is provided with a square pillar-shaped support member 320 in communication with the moving member 310 and the hollow 321 is formed at the center thereof, the outer shape of the support member 320 is a square pillar shape Need not be limited.

That is, the support member 320 is the bite fastening member during the draw-out driving by the rotation of the rotary shaft 431 of the second bevel spiral gear 430 which will be described later the bite fastening member 330 is coupled to the inside It may be a polygonal columnar shape or an elliptical columnar shape that can prevent the 330 from rotating.

The bite fastening member 330 is a member that can be pulled out and coupled to the hollow 321 of the support member 320, the finishing bite 1 is fixedly coupled to the upper surface and a separate hollow is formed inside the side of the hollow The screw thread extends in the height direction.

The screw member 340 is a member coupled to the screw shaft 520 to be described later to move the movable member 310 along the longitudinal direction of the boring bar 100, is disposed on the lower inner surface of the movable member 310 A screw thread is formed on the inner surface thereof to be coupled to the screw shaft 520 and is positioned in the second space part 120 of the boring bar 100.

 The height adjusting part 400 is fixedly coupled to one side of the moving member 310 and disposed in the first space part 110, the first servo motor 410 and the rotation shaft 411 of the first servo motor 410. The first bevel spiral gear 420 and the first bevel spiral gear 420 rotates in engagement with the first bevel spiral gear 420 and penetrates the bottom surface of the bite fastening member 330 to rotate. 431 is composed of a second bevel spiral gear 430 is screwed together.

Here, using the bevel spiral gear without using the general bevel gear in the height adjustment part is to form the shape of the gear teeth into a spiral shape rather than a straight shape to reduce the noise when the gears are engaged with each other, This is to reduce the play that occurs and at the same time increase the efficiency of power transmission.

The lower part of the first servo motor 410 is fixedly coupled to the rear of the moving member 310 so that the first servo motor 410 is disposed in the first space portion 110 and translates together with the moving member 310. In addition, an additional reduction gear 440 is provided on the rotation shaft 411 of the first servo motor 410.

The first bevel spiral gear 420 is rotatably coupled to the lower surface of the upper surface of the moving member 310, the rotary shaft 411 of the first servo motor 410 at the end of the rotating shaft 421 of the first bevel spiral gear 420. In conjunction with the reduction gear 440 provided in the) is provided with another reduction gear 440 that can adjust the rotation speed.

The second bevel spiral gear 430 is a member that rotates in engagement with the first bevel spiral gear 410, and a thread is formed on an outer circumferential surface of the rotating shaft 431 of the second bevel spiral gear 430 to form a byte fastening member 330. Is fastened with the hollow.

The translational movement unit 500 is engaged with the second servo motor 510 fixedly coupled to the lower surface of the boring bar 100 and the rotation shaft 511 of the second servo motor 510, and the thread is formed on the outer circumferential surface thereof. The screw shaft 520 is fastened to the screw member 340 and extends to a predetermined length along the longitudinal direction of the boring bar 100 and is disposed in the second space part 120.

One end of the screw shaft 520 is rotatably coupled to one side of the second space portion 120 so as to rotate in engagement with the rotation shaft 511 of the second servo motor 510, and the other end thereof may include a second space portion ( It is rotatably coupled to one side of the 120, the screw shaft 520 is stably supported in the second space portion 120 of the boring bar 100 without sagging downward.

A plurality of reduction gears 530 to adjust the moving speed of the moving member 310 by adjusting the rotational speed of the screw shaft 520 between the rotation shaft 511 and the screw shaft 520 of the first servo motor 510. Is further provided.

In addition, the rudder rudder processing apparatus for ships is electrically connected to a separate numerical control unit 600 to rotate the number of revolutions of the boring bar 100, the number of revolutions of the first servo motor 410, and the number of revolutions of the second servo motor 510. By numerically controlling each, the inner diameter of the rudder for ship can be finished quickly and cleanly.

The operation of the ship rudder inner diameter processing apparatus having such a configuration is as follows.

First, after arranging the ship rudder inner diameter processing apparatus such that the boring bar 100 is located at the center of the inner diameter of the rudder 2 for ships, the numerical value is input to the numerical control unit 600 to rotate the boring bar 100 and the first servo. The rotation speed of the motor 410 and the rotation speed of the second servo motor 510 are set.

When each setting is completed, the boring bar 100 is rotated by the rotation driving unit 200 at a set rotation speed, and at the same time, the first servo motor 410 and the second servo motor 420 rotate.

While the rotation axis of the first servo motor 410 is rotated forward or reverse at a set speed, the first bevel spiral gear 420 is driven to rotate, and the second bevel spiral gear is rotated by the first bevel spiral gear 420. 430 is rotated.

By rotating the rotating shaft 431 of the second bevel spiral gear 430 by the rotational movement of the second bevel spiral gear 430, the bite fastening member engaged with the rotating shaft 431 of the second bevel spiral gear 430 ( 330 is selectively withdrawn to the outside of the support member 320 so that the boring bar 100 rotates while the bite 1 is in contact with the inner diameter of the rudder 2 for ships to cut the inner diameter of the rudder for ships 2.

With this operation, the screw shaft 520 engaged with the rotation shaft 511 of the second servo motor 510 is rotated by the rotation of the second servo motor 510, and the rotation movement of the screw shaft 520 is performed. As the screw member 340 engaged with the screw shaft 520 moves, the movable member 310 linearly reciprocates along the longitudinal direction of the boring bar 100 so that the bite 1 changes the inner diameter of the ship rudder 2. Since the cutting sequentially, the inner diameter of the ship rudder 2 can be processed smoothly.

As described above, the ship rudder inner diameter processing apparatus of the present invention has been described through a preferred embodiment, which is not intended to limit the technical scope of the present invention, but is intended to help the understanding of the present invention.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. There is no saying.

1: Finishing bite 100: Boring bar
110: first space portion 120: second space portion
130: guide groove 200: rotary drive unit
300: moving body 310: moving member
311: guide protrusion 320: support member
321: hollow 330: bite fastening member
340: screw member 400: height adjustment
410: the first servo motor 411: rotation axis
420: first bevel spiral gear 430: second bevel spiral gear
440: reduction gear 500: translation unit
510: second servo motor 511: rotation axis
520: screw shaft 530: reduction gear

Claims (7)

A boring bar 100 having a predetermined length in which first spaces 110 and second spaces 120 are formed on upper and lower surfaces facing each other along the height direction;
A rotation driving part provided at both ends of the boring bar 100 to support the boring bar 100 at a predetermined height and to rotate the boring bar 100;
A rectangular moving member 310 is inserted into an outer circumferential surface of the boring bar 100 to be movable along the longitudinal direction of the boring bar 100, and is provided on an upper surface of the moving member 310 and hollow 321 at the center thereof. ) Is formed with a rectangular pillar-shaped support member 320, the bite is provided to be pulled out along the height direction of the support member 320 in the hollow of the support member 320 is fastening bite for finishing (1) A moving body part 300 including a fastening member 330 and a screw member 340 fixed to an inner surface of the moving member 310 and disposed in the second space part 120 and having a screw thread formed on an inner surface thereof. ;
It is fixed to one side of the moving member 310 is disposed in the first space portion 110 and the bite fastening member 300 to be pulled out along the height direction of the support member 320 to the finishing bite And height adjustment unit 400 for adjusting the height of (1);
A translation unit 500 fixedly coupled to one side of the boring bar 100 to allow the movable member 310 to linearly reciprocate along the length of the boring bar 100;
Marine rudder diameter processing apparatus, characterized in that configured to include. The method of claim 1,
Both side surfaces of the boring bar 100 in contact with the moving member 310 extend along the longitudinal direction of the boring bar 100 and are provided with guide grooves 130 recessed inward, and the boring bar 100 of the Marine inner rudder processing apparatus, characterized in that the inner surface of the moving member 310 in contact with both sides is provided with a guide projection (311) protruding to be inserted into the guide groove (130). The method of claim 2,
The height adjusting unit 400 is fixedly coupled to one side of the moving member 310 is disposed in the first space 110, the first servo motor 410 and the rotation shaft of the first servo motor 410 And the first bevel spiral gear 420 which rotates in engagement with the 411 and the first bevel spiral gear 420 rotates in engagement with the first bevel spiral gear 420 to penetrate the bite through the bottom surface of the bite fastening member 330. Marine rudder processing apparatus for ships, characterized in that the member 330 and the rotating shaft 431 is composed of a second bevel spiral gear 430 is screwed to each other. The method of claim 3,
A plurality of reduction gears 440 are provided between the rotating shaft 411 of the first servo motor 410 and the rotating shaft 421 of the first bevel spiral gear 420. . The method of claim 4, wherein
The translation unit 500 is engaged with the second servo motor 510 fixedly coupled to the lower surface of the boring bar 100 and the rotation shaft 511 of the second servo motor 510 to rotate. A screw thread is formed on an outer circumferential surface thereof, the screw shaft 520 is fastened to the screw member 340 and extends to a predetermined length along the longitudinal direction of the boring bar 100 and is disposed in the second space part 120. Marine rudder diameter processing apparatus, characterized in that. The method of claim 5,
Marine rudder processing apparatus for ships, characterized in that a plurality of reduction gears (530) is further provided between the rotating shaft (511) and the screw shaft (520) of the second servo motor (510). The method according to claim 5 or 6,
The rudder rudder processing apparatus for ships is electrically connected to a separate numerical control unit 600 to rotate the number of revolutions of the boring bar 100, the number of revolutions of the first servo motor 410, and the rotation of the second servo motor 510. Marine rudder processing apparatus, characterized in that the number is numerically controlled respectively.

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