JP3421004B2 - Steering machine installation method and rotary vane type steering machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technology of a steering gear of a ship, and more particularly to a steering gear installation method and a rotary vane steering gear.

[0002]

2. Description of the Related Art Conventionally, in a rotary vane type steering gear 1 as shown in FIGS. 7 to 8, a rotor 3 is housed inside a housing 2, and a lower shaft portion 3a of the rotor 3 is housed in the housing 2. Through the boss portion 2a provided at the inner bottom of the housing, the upper shaft portion 3b through the through hole of the annular cover 4 arranged in the upper opening of the housing 2, and the lower shaft portion 3a through the radial bearing member 5a and the thrust bearing member. 5b is rotatably held, and the upper shaft portion 3b is rotatably held by a radial bearing member 5c. As a result, the rotor 3 becomes rotatable with a load applied in the radial direction and the axial direction.

The housing 2 is provided with an annular mounting flange 2b on the lower portion of the outer peripheral surface thereof so as to project in the radial direction, and is attached to the steering machine mounting base 16 via the mounting flange 2b. The rotor 3 is provided with vanes 6 projecting radially on the outer circumferential surface at equal intervals along the circumferential direction, and the housing 2 is provided with the vanes on the inner circumferential surface at equal intervals along the circumferential direction. The same number of segments 7 are provided so as to project in the radial direction, and a sealing material 8 is provided at each edge of the vanes 6 and the segments 7. With this configuration, an oil-tight oil chamber 9 is formed between each vane 6 and each segment 7, and the rotor 3 rotates inside the housing 2 by feeding oil to each oil chamber 9 with a hydraulic pump.

The rotor 3 has an internal through hole 3c at its center, and the top end portion 10a of the rudderstock 10 is inserted into this internal through hole.
Fit and fix. Since the penetrating portion 11a of the rudder shaft 10 on the steering gear deck 11 is below the waterline of the ship, this penetrating portion 1
The water sealing device 12 for keeping the watertightness of 1a is attached to the steering gear deck 11
It is attached directly to.

[0005]

By the way, in the above-mentioned conventional structure, since the steering gear 1, the steering mount 16 and the water sealing device 12 are provided independently of each other, the ship building Rotary vane steering gear 1 at the outfitting site
And it was necessary to attach the rudderstock 10 to the hull by the laborious method described below.

That is, as shown in FIG. 9 to FIG.
Before inserting 0, the rudder shaft 1 is inserted in the penetration part of the stern hull 13 in advance.
A neck boss 15 including a neck bearing 14 that supports a radial load of 0 is fixed, and the steering gear deck 11
The steering gear mount 16 is fixed to the predetermined position of.

At this time, boring is performed so that the shaft center of the steering gear installation base 16 and the shaft center of the neck bearing 14 coincide with each other, and the upper surface of the steering gear installation base 16 is aligned with the shaft center. Make squareness so that it becomes a right angle.
Further, the water sealing device 12 is preliminarily subjected to centering work so that its axis coincides with the axis of the rudder shaft 10 so that it can be directly attached to the steering gear deck 11.

Next, the rudder 1 is placed on the rudder mount 16 and the rudder shaft 10 is passed from under the neck bearing 14 to the hoisting gear 1 and the top end 10a of the rudder shaft 10 is steered. It is inserted into the internal through hole 3c of the machine rotor 3. At this time,
The entire weight of the steering gear is supported in a state where the tapered portion of the rudder shaft top end portion 10a and the tapered portion of the steering gear rotor internal through hole 3c are in close contact with each other. The rudderstock 10 is set up vertically so that the gap between the upper end or the lower end of the neck bearing 14 and the rudderstock 10 is uniform in the front, rear, left, and right directions. In this state, the hydraulic tightening nut 17 is attached to the top end of the rudder shaft 10.
Put on.

An oil passage 10b for hydraulically expanding the inner diameter of the internal through hole 3c of the steering rotor 3 is provided at the rudder shaft top end 10a, and the hydraulic tightening nut 17 has the internal through hole 3c. A hydraulic jack 10 for inserting the top end 10a of the rudder axle into the internal through hole 3c of the rotor 3 by the amount of expansion.
c is built in. With this configuration, the internal through hole 3c of the rotor 3 is expanded by hydraulic pressure, and the top end 10a of the rudder axle is inserted into the internal through hole 3c with the hydraulic jack 10c, and then the hydraulic pressure is released to release the internal through hole of the rotor 3. The diameter of 3c is reduced, and the top end 10a of the rudder axle is fixed to the rotor 3.

With respect to the combined body in which the rudder shaft 10 and the steering gear 1 are combined, the vertical position, the front-rear direction, the left-right direction, and the axial center are adjusted to determine the ultimate position. In that state, the installation flange 2b of the housing 2 of the steering gear and the steering mount 1
Insert the adjustment liner between 6 and.

Next, as shown in FIG. 7, a plurality of reamer holes 16a are formed by penetrating the installation flange 2b of the steering gear housing 2 and the steering gear installation base 16, and the reamer holes 1 are formed.
The reamer bolt 16b is passed through 6a to fix the combined body of the steering gear 1 and the rudder shaft 10 in a state in which there is no deviation in the front-rear, left-right, up-down, or axial directions. After that, the remaining installation bolts are tightened to complete the installation of the steering gear 1 and the rudder shaft 10.

After this, the water sealing device 12 is attached to the steering deck 11.
Directly mounted on the through portion of the rudderstock 10 on the upper side of FIG.
As shown in 0, the rudder blade 18 is fixed to the lower end of the rudder shaft 10 to complete the outfitting.

These operations have a problem that a large number of man-hours are required in the outfitting design and outfitting work in a shipyard, and the outfitting cost increases, and further, the measurement is inaccurate in the outfitting site. There was a problem that an error could occur in installation and a serious accident could occur. Furthermore, it is a major proposition to simplify the outfitting work and shorten the outfitting period.

Further, in the rotary vane type steering gear, since the entire weight of the rudder shaft and the rudder blade is supported by the thrust bearing member of the steering gear via the rotor, there is no need for a separate ladder carrier. There is. However, on the other hand, it is impossible to remove the rotor from the rudder shaft for opening inspection repair of the steering gear without supporting the rudder shaft by a separate means, and also to remove the rotor from the rudder shaft for repair. The disadvantage is that there is no means to prevent the rudder blade or rudder axle from being turned by external forces during the inspection. Therefore, the rotor of the steering gear cannot be pulled out on the sea, and the open inspection and repair of the steering gear must be carried out by docking the ship, which results in a great loss of time and man-hours.
There was a problem that it was expensive.

The present invention is intended to solve the above-mentioned problems, and can reduce man-hours for outfitting design and outfitting work at a shipyard, reduce outfitting cost, reduce outfitting period, and improve outfitting accuracy, and also to improve rudder axle. A steering van installation method and a rotary vane steering system are provided so that the steering system can be supported by the steering system installation stand so that the steering system can be opened and inspected by pulling out the steering system rotor even from the sea. The purpose is to do.

[0016]

In order to solve the above-mentioned problems, a steering gear installation method of the present invention according to claim 1 forms a fitting hole of a predetermined diameter in a steering gear deck, The mounting base plate that loosely fits into the fitting hole, the steering gear installation base that is arranged on the upper part of the mounting base plate, and the steering gear that is arranged on the upper part of the steering base installation base are assembled in advance into an integrated combined body. , Mount a deck seal material that is watertightly in sliding contact with the rudder shaft on the peripheral edge of the central hole formed in the mounting base plate, and hang this combination so that the mounting base plate loosely fits into the fitting hole of the steering deck. Insert the rudder shaft through the central hole of the mounting base plate from the through part of the stern hull, join the top end of this rudder shaft to the rudder, and then attach the rudder, the rudder mount and the mounting base. Vertically and horizontally with the assembly of plates, deck seals and rudder shaft suspended. Position the rudder shaft at the proper position, weld the peripheral edge of the mounting base plate and the peripheral edge of the fitting hole on the steering gear deck, and attach the steering gear to the steering gear deck. The rudder blade is attached to the part.

In the above-mentioned structure, as a value derived from statistical and empirical analysis, the fitting hole of the steering deck is formed to be larger than the diameter of the mounting base plate by about 10 mm, and the steering deck has a thickness of 12 to 10, for example. By setting the plate thickness of the mounting base plate to 40 to 60 mm in contrast to 15 mm, it is possible to adjust the position and axis of the assembly consisting of the steering gear, steering gear installation base, deck seal material and rudder axle. And, despite their adjustment, the mounting base plate can be welded to the fitting holes in the steering deck.

If the thickness of the above-mentioned mounting base plate is sufficient, the strength is sufficient, and a deck seal material can be incorporated.
The welding distortion is localized and does not affect the final position and axis of the helm, helm mount, deck seals and rudder axle assembly.

Therefore, by performing the position adjustment and the axial center adjustment of the steering gear, the steering gear mounting base, the deck seal material and the rudder shaft as an integrated body, the positioning work is conventionally performed for each member. It is possible to reduce a great number of man-hours and outfitting costs of outfitting work that have been caused by the above, and to simplify the outfitting work and shorten the outfitting period.

According to a second aspect of the present invention, in the steering gear installation method of the present invention, a mounting hole having a predetermined diameter is formed in the steering deck and a mounting base plate and a mounting base plate are loosely fitted in the steering hole of the steering deck. The steering gear installation base placed on the upper part of the steering wheel and the steering gear installed on the upper part of the steering gear installation base are preassembled into an integrated body, and the rudder shaft is attached to the periphery of the central hole formed in the mounting base plate. Mount a deck seal that slides in a watertight manner and hang this combination so that the mounting base plate fits loosely in the fitting hole of the steering gear deck.In this condition, the axis of the steering gear is vertical and horizontal. Position the combined body at an appropriate position, weld the peripheral edge of the mounting base plate and the peripheral edge of the fitting hole of the steering deck to mount the steering on the steering deck, and then Place the rudder axle through the central hole of the mounting base plate from the through part of the shell, Of the top end of the steering shaft joined to the steering gear, in which mounting the rudder blade to the lower end of the steering shaft.

A rotary vane type steering gear according to a third aspect of the present invention comprises a steering gear mounted with a rudder shaft, and a steering gear mounting base which supports the steering gear and is arranged below the steering gear. , A mounting base plate that is placed at the bottom of the steering gear installation base and loosely fits into a fitting hole of a specified diameter formed on the steering gear deck, and mounted on the peripheral edge of the center hole formed in the mounting base plate, The deck seal material that slides in a watertight manner on the rotor is assembled in advance into an integral combined body before the fitting process.The steering machine has a rotor fitted and mounted on the rudder axle, and the rotor is housed around the rotor. Has a housing that forms a space for the oil chamber, and an annular cover that is arranged in the upper opening of the housing, and arranges a plurality of vanes at evenly spaced positions along the circumferential direction of the outer peripheral surface of the rotor. Place multiple segments at equal intervals along the circumferential direction of the inner surface , The vane and the segment partition the oil chamber space into a plurality of oil chambers, the lower shaft portion of the rotor through a radial bearing member and a thrust bearing member capable of bearing the axial total load applied to the rudder shaft of the housing. The inner bottom boss is rotatably supported, the rotor upper shaft is rotatably supported by an annular cover via a radial bearing member, and a mounting flange is provided on the lower part of the outer peripheral surface of the housing in a protruding manner. The steering installation base has an installation plate joined to the installation flange of the steering and having a central hole for inserting the rudder shaft, and a downwardly extending support plate joined to the bottom of the installation plate. The mounting base plate is joined to the lower end of the support plate and welded to the peripheral edge of the fitting hole of the steering deck at the peripheral edge.

With the above-described structure, the steering gear and the steering gear mount are integrally connected in advance at the manufacturing plant. This eliminates the need for conventional conditioning liners. At the shipyard's outfitting site, this combination of the steering gear and steering gear installation base, or the assembly with the steering shaft attached to it, should be attached to the neck bearing that supports the steering shaft in the through hole of the stern hull. The vertical steering, front-back, left-right positioning and axial center adjustment, and then the welding base plate is fixed to the fitting hole of the steering deck by welding. Can be outfitted in position.

For this reason, the design and manufacture of the steering gear installation base, which was conventionally performed at the shipyard, and the installation of the steering gear installation base, which was performed at the outfitting site, between the steering gear and the steering gear installation base. The adjustment liner eliminates vertical, front-rear, left-right position adjustment, axial center adjustment, reamer processing, and squareness processing of the top surface of the steering gear installation base. As a result, it is not necessary to design, manufacture and install a steering gear installation stand at a shipyard, and it is possible to reduce the man-hours for outfitting work, reduce outfitting cost, shorten the outfitting period, and improve the outfitting accuracy.

According to a fourth aspect of the present invention, there is provided a rotary vane type steering gear, wherein an annular recess is provided concentrically with the central hole on the upper surface of the mounting base plate, and the annular recess is provided with a water gap between the central hole and the rudder shaft. An annular deck seal material made of elastic material to be sealed is mounted and fixed.The deck seal material has a bottom surface and an outer surface that are in contact with the bottom surface and side surface of the annular recess, respectively, and a lip portion that is watertightly in contact with the rudder axle at the top. Is formed.

With the above-described structure, the deck seal material can be mounted in advance at a precise position on the mounting base plate in the manufacturing plant. Therefore, at the outfitting site of the shipyard, it is not necessary to perform the centering work of the water sealing device and then attach the water sealing device to the steering gear deck as in the conventional case.

A rotary vane type steering gear according to a fifth aspect of the present invention is removably mounted on a mounting base plate and a color plate inserted into an indent formed in a part of the outer circumference of the rudder shaft. The rudder shaft fixing plate comprises a rudder shaft supporting plate and a stay plate connecting and fixing the rudder shaft supporting plate and the color plate.

With the above-described structure, by mounting the rudder shaft fixed hardware, the total weight acting on the rudder shaft can be supported by the mounting base plate via the rudder shaft fixed metal, and the rudder plate, that is, the rudder shaft can be freely moved by an external force. Since rotation can be blocked, inspection and repair work is performed by removing the rotor of the steering gear from the rudder axle and opening the steering gear, and adjustment repair work performed after fixing the rudder blade and rudder axle without docking the ship. It will be possible to do it even at sea.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Members that perform basically the same operations as those of the configurations described above with reference to FIGS. 7 to 10 are denoted by the same reference numerals and description thereof will be omitted.

In FIGS. 1 and 2, the steering vane mounting base 51 is provided so as to face the bottom surface of the installation flange 2b of the rotary vane type steering gear 1. The steering gear installation base 51 includes an installation plate 52 having a central hole 52a into which the rudder shaft 10 is inserted, and a support plate 5 extending downward and welded to the bottom surface of the installation plate 52.
3, a mounting base plate 54 is welded to the lower end of the support plate 53, the mounting base plate 54 has a central hole 54a through which the rudder shaft 10 penetrates, and the outer periphery is formed into a circular shape of a predetermined size. There is.

The steering gear 1 abuts on the installation plate 52 of the steering gear installation base 51 at the installation flange 2b to connect the steering gear 1 and the installation base 51 to each other, for example, the reamer bolt 1
Fix with 6b. It suffices that this fastening means can transmit all the forces acting on the steering gear 1 and the rudder shaft 10 in the vertical, front-rear, left-right and axial directions to the steering mount 51. In the steering machine installation stand 51, the mounting base plate 54 is loosely fitted and arranged in the fitting hole 55 formed in the steering machine deck 11.
By welding the peripheral portion of the mounting base plate 54 to the peripheral portion of the fitting hole 55 of the steering deck 11, the steering deck 11
Install on.

An annular recess 56 is provided concentrically with the center hole 54a on the upper surface of the mounting base plate 54 of the steering gear installation stand 51, and an annular deck seal member 57 is attached to the annular recess 56. Is made of an elastic material that seals the gap between the central hole 54a and the rudderstock 10 with water. In the deck seal material 57, the bottom surface and the outer surface of the outer peripheral annular portion 57a are in contact with the bottom surface and the side surface of the annular recess 56, respectively, and the annular lip portion 57b is in slidable contact with the outer periphery of the rudder shaft 10. Has a shape projecting radially inward from the top of the outer peripheral annular portion 57a and then bending downward. The deck seal member 57 is attached and fixed to the attachment base plate 54 by attaching an annular plate 58 that presses the top surface thereof to the attachment base plate 54 of the steering installation base 51 with bolts 58a.
The support plate 53 of the steering installation base 51 is provided with working holes 59 for inspecting and maintaining the deck seal material 57 on the steering deck 11.

The operation of the above structure will be described below. At the manufacturing plant of the steering gear, the steering gear 1, the steering gear mounting base 51, and the mounting base plate 54 are determined in their relative positions to be preliminarily formed into an integral combined body by a reamer bolt or the like, and the mounting base is constructed. The deck seal material 57 is attached to the plate 54. This eliminates the need for conventional conditioning liners.

At the outfitting site of the shipyard, as shown in FIG. 3, the steering gear 1, the steering gear mount 51, and the mounting base plate 5 are shown.
The combined body of No. 4 is suspended in a state where the mounting base plate 54 is loosely fitted in the fitting hole 55 of the steering deck 11.

Next, the rudder shaft 10 is moved from below the stern hull 13 to the neck bearing 14 and the center hole 54 of the mounting base plate 54.
a and the deck seal member 57, and the top end 10 thereof
The a is lifted until it fits into the internal through hole 3c of the rotor 3 of the steering gear 1.

A hydraulic tightening nut 17 is attached to the rudder shaft top end portion 10a, and the top end of the rudder shaft 10 is connected to the steering rotor 3 by hydraulic pressure or the like as in the prior art. This steering gear 1, steering gear installation base 51, mounting base plate 54, deck seal material 5
In the state where the assembly of 7 and the rudder axle 10 is suspended,
The vertical position (vertical direction) of the rudder shaft 10 in the penetrating portion of the neck bearing 14 is determined so that the gap between the inner surface of the neck bearing 14 and the rudder shaft 10 is equal in the front-rear direction and the left-right direction (horizontal direction). The axial center position of the rudderstock 10 is determined.

In this state, the peripheral edge of the mounting base plate 54 and the peripheral edge of the fitting hole 55 of the steering deck 11 are welded. Finally, the rudder blade 18 is attached to the lower end of the rudder axle 10 to complete the on-site outfitting.

According to the statistical and empirical analysis in the above configuration, the fitting hole 55 of the steering deck 11 is made larger than the diameter of the mounting base plate 54 by about 10 mm, and the steering deck 11 has a plate thickness of 12 to 12 mm. If the plate thickness of the mounting base plate 54 is set to 40 to 60 mm with respect to 15 mm, the position of the aggregate of the steering gear 1, the steering gear mount 51, the mounting base plate 54, the deck seal material 57, and the rudder shaft 10 Adjustment and axial center adjustment are possible, and the peripheral edge of the mounting base plate 54 can be welded to the peripheral edge of the fitting hole 55 of the steering deck 11 despite these adjustments. Further, the mounting base plate 54 has sufficient strength as long as it has the above-mentioned thickness, and the deck seal material 57 can be built in, so that the distortion caused by welding is localized and the steering gear 1, rudder It does not affect the final position and axial center of the assembly of the machine installation base 51, the mounting base plate 54, the deck seal material 57, and the rudderstock 10.

As described above, the position adjustment and the axial center adjustment of the aggregate in which the steering shaft 10 is connected to the combination of the steering gear 1, the steering gear mount 51, the mounting base plate 54, and the deck seal material 57. Instead of performing the above, it is also possible to perform position adjustment and axial center adjustment for the combined body of the steering gear 1, the steering gear mount 51, the mounting base plate 54, and the deck seal material 57 before coupling the rudder shaft 10. .

That is, in the state where the combined body of the steering gear 1, the steering gear mounting base 51, the mounting base plate 54, and the deck seal material 57 is suspended, the axial center of the steering gear 1 is the axial center of the neck bearing 14. The measurement and adjustment are performed so as to match with, and the peripheral edge of the mounting base plate 54 is welded to the peripheral edge of the fitting hole 55 of the steering gear deck 11 at the position where the axes coincide with each other.

Thereafter, the rudder shaft 10 is lifted from below the stern hull 13 through the neck bearing 14, and the top end of the rudder shaft 10 is moved to the steering rotor 3 in the same manner as described above.
And the rudder blade 18 is attached to the lower end of the rudder axle 10.

FIGS. 4 to 5 show another embodiment of the present invention, in which an additional structure is added to the structure of the previous embodiment, which has been described in the above embodiment. The members having the same functions as those described above are designated by the same reference numerals and the description thereof will be omitted.

A plurality of rudder shaft fixing hardware 60 are detachably mounted on the mounting base plate 54 with bolts, and each rudder shaft fixing hardware 60 is attached to the mounting base plate 54.
0a, a color plate 60b for supporting the rudder shaft 10 by inserting it into an indent 61 formed in a part of the outer circumference of the rudder shaft 10 inside the steering gear installation base 51, and a color plate 60b.
And a stay plate 60c connecting and fixing the rudder axle support plate 60a.

Each of the rudder shaft fixed hardware 60 is provided with a rudder mount 51.
Through the work hole 59 of the
A pair is arranged at each of the opposite poles via the rudder shaft 10, and each rudder shaft fixed hardware 60 has a rudder mount 51.
Is provided with a flange 60d for coupling after being carried in. The indent 61 of the rudder stock 10 is formed at a position where the rudder blade 18 is in the neutral position when the collar plate 60b is inserted and fixed.

The operation of the above configuration will be described below. When it becomes necessary to open check the steering gear 1,
Each rudder axle fixed metal piece 60 is carried into the inside of the rudder mount 51, and the color plate 60b is attached to the indent 61 of the rudder axle 10.
The rudder axle support plate 60a with the mounting base plate 5
4 is fixed with bolts, and each rudder axle support plate 60
a is joined at the flange 60d.

In this state, hydraulic pressure is applied to the hydraulic tightening nut 17 at the top end of the rudderstock 10 to expand the internal through hole 3c of the rudderstock rotor 3 so that the rudderstock 10 and the rudderstock 3 are connected to each other. Release the bond.

At this time, the rudderstock 10 is fixed to each rudderstock fixed hardware 60.
The weight is supported by the mounting base plate 54 via the, and free rotation due to the external force acting on the rudder plate 18 is prevented, and the base plate is fixed in the neutral position. Therefore,
Even on the sea, by supporting and fixing the rudder axle 10 as described above, the rotor 3 can be lifted from the steering gear 1 to open the steering gear 1, and the inside can be inspected.

[0047]

As described above, according to the present invention, the steering gear, the steering gear mount, and the mounting base plate are configured as an integral combined body in a manufacturing plant in advance before the outfitting work, and the deck is provided. By incorporating a sealing material, at the shipyard's outfitting site, the combination of the steering gear, steering gear installation base, and mounting base plate, or the assembly in which the rudder shaft is coupled to the steering gear You can finish the outfitting work by simply adjusting the position and adjusting the axis and welding the mounting base plate to the fitting hole of the steering gear deck, and the steering gear installation stand that was conventionally required at the shipyard and its outfitting site. Design and manufacture of the steering machine, squareness machining of the top of the steering machine installation stand, position adjustment between the steering machine and the installation stand, axial center adjustment and reamer processing, and centering of the water seal device for steering. There is no need to attach it to the machine deck Outfitting design and outfitting man-hour reduction of the construction work in the shipyard, reduction of outfitting cost, shortening of outfitting period,
The outstanding effect of improving the accuracy of outfitting can be demonstrated. Furthermore, by supporting the rudder shaft by fixing it to the mounting base plate with the rudder shaft fixing hardware, it is possible to perform open inspection of the rotary vane type steering gear even on the sea. It is no longer necessary to dock the ship, and a great effect can be achieved in that a large amount of time is lost, man-hours and costs are eliminated.

[Brief description of drawings]

FIG. 1 is an overall vertical partial sectional view showing a rotary vane type steering gear according to an embodiment of the present invention.

2 is a cross-sectional view taken along the line MM in FIG.

FIG. 3 is an explanatory diagram showing a procedure for attaching a rotary vane steering gear, a steering gear installation base / mounting base plate assembly, a rudder shaft, and a steering plate in the embodiment of the present invention.

FIG. 4 is an overall vertical partial sectional view showing a rotary vane type steering gear according to another embodiment of the present invention.

5 is a cross-sectional view taken along the line nn in FIG.

FIG. 6 is an enlarged vertical cross-sectional view showing details of a deck seal material and a rudder-shaft fixed metal object of the rotary vane steering machine.

FIG. 7 is an overall vertical partial sectional view showing a conventional rotary vane type steering gear and its installation base.

FIG. 8 is an overall horizontal sectional view of the rotary vane steering machine.

FIG. 9 is a vertical cross-sectional view showing a configuration of a hydraulic tightening nut of the rotary vane steering apparatus.

FIG. 10 is an explanatory view showing a procedure for attaching the rotary vane steering gear, the installation stand, the rudder shaft, and the rudder blade.

[Explanation of symbols]

1 Rotary vane type steering gear 2 housing 2a Boss 2b Installation flange 3 rotors 3a Lower shaft 3b Upper shaft 3c Internal through hole 4 cover 5a Radial bearing member (lower part) 5b Thrust bearing member 5c radial bearing member (upper part) 6 vanes 7 segments 8 Seal material 9 oil chamber 10 rudder axis 10a top end 10b oil passage 10c hydraulic jack 11 Steering deck 11a penetration part 12 Water sealing device 13 stern hull 14 Neck bearing 15 neck boss 16 Steering machine installation stand 16a Reamer hole 16b reamer bolt 17 Hydraulic tightening nut 18 rudder plate 51 Steering machine installation stand 52 Installation plate 52a center hole 53 Support plate 54 Mounting base plate 54a center hole 55 Fitting hole 56 annular recess 57 deck seal material 57a Outer ring portion 57b Annular lip 58 ring plate 58a bolt 59 Working hole 60 Rudder shaft fixed hardware 60a Rudder support plate 60b color plate 60c stay plate 60d flange 61 indent

Continuation of the front page (72) Inventor Takashi Morimoto 1-15-1, Kagino-nishi, Joto-ku, Osaka City, Osaka Park Sawarei Japan Hamworthy Co., Ltd. (56) Reference JP-A-57-103932 (JP, A) JP-A-2000-168690 (JP, A) JP-A-8-244688 (JP, A) Actual development Sho 53-103081 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B63H 25 / 38 104 B63B 9/00 B63J 5/00

Claims (5)

(57) [Claims] 1. A mounting base plate having a fitting hole of a predetermined diameter formed in the steering gear deck, the mounting base plate being loosely fitted in the fitting hole of the steering gear deck, and the steering gear mounting base arranged above the mounting base plate. Assemble the steering gear arranged on the upper part of the steering gear installation stand in advance into an integrated body, and attach the deck seal material that slides in watertight contact with the rudder shaft to the peripheral edge of the central hole formed in the mounting base plate, Suspend this combined body so that the mounting base plate loosely fits into the fitting hole of the steering deck, insert the rudder shaft through the center hole of the mounting base plate from the through part of the stern hull, and arrange this rudder shaft. Join the top end of the steering gear to the steering gear, and with the steering gear, steering gear installation base, mounting base plate, deck seal material, and rudder shaft assembly suspended, adjust the rudder shaft vertically and horizontally. The mounting base plate and the circumference of the steering hole on the steering gear deck. A steering gear installation method comprising welding the edge portion to the steering gear to attach the steering gear to the steering gear deck, and then attaching the steering plate to the lower end portion of the steering shaft. 2. A steering base plate and a steering base mounted on the steering base plate, the mounting base plate having a fitting hole of a predetermined diameter formed therein, and the mounting base plate being loosely fitted in the mounting hole of the steering base plate. Assemble the steering gear arranged on the upper part of the machine installation stand in advance into an integrated combined body, and attach the deck seal material that slides in a watertight manner to the rudder shaft at the peripheral edge of the central hole formed in the mounting base plate,
Suspend this assembly so that the mounting base plate fits loosely in the fitting hole of the steering deck, and in this state position the assembly at a position where the axis of the steering is appropriate in the vertical and horizontal directions. Attach the steering gear to the steering deck by welding the peripheral edge of the mounting base plate and the peripheral edge of the fitting hole of the steering deck, and then insert the central hole of the mounting base plate from the through part of the stern hull. A rudder installation method, characterized in that a rudder shaft is arranged by inserting the rudder shaft, the top end of the rudder shaft is joined to the rudder, and a rudder plate is attached to the lower end of the rudder shaft. 3. A steering gear to which a rudder shaft is attached, a steering gear installation base which supports the steering gear and is arranged under the steering gear, and a steering gear which is arranged under the steering mount. Before the outfitting process, a mounting base plate loosely fitted in a fitting hole formed on the machine deck and a deck seal material that is mounted on the peripheral edge of the central hole formed in the mounting base plate and is in watertight sliding contact with the rudder axle The steering gear consists of a rotor that is fitted and mounted on the rudder axle, a housing that houses the rotor and forms an oil chamber space around the rotor, and an upper part of the housing. Having an annular cover to be placed in the opening, a plurality of vanes are arranged at evenly spaced positions along the circumferential direction of the outer peripheral surface of the rotor, and at equally spaced positions along the circumferential direction of the inner circumferential surface of the housing. By arranging multiple segments, the space for the oil chamber is duplicated by the vanes and the segments. The lower shaft part of the rotor is rotatably supported by the boss part of the inner bottom part of the housing through the radial bearing member and the thrust bearing member that can support the axial total load applied to the rudder shaft. However, the upper shaft of the rotor is rotatably supported by the annular cover via the radial bearing member, and the installation flange is projected on the lower part of the outer peripheral surface of the housing. It has a mounting plate joined to the installation flange of the machine and having a central hole for inserting the rudder shaft, and a downwardly extending support plate joined to the bottom surface of the installation plate, and the mounting base plate is the lower end of the support plate. The rotary vane type steering gear is characterized in that the steering vane is welded to the peripheral edge portion of the fitting hole of the steering gear deck. 4. An annular deck seal member is provided on the upper surface of the mounting base plate, the annular recess being concentric with the central hole, and an annular deck seal member made of an elastic material for water-sealing the gap between the central hole and the rudder shaft is mounted and fixed. In the deck seal material, the bottom surface and the outer surface contact the bottom surface and the side surface of the annular recess, respectively.
The rotary vane type steering machine according to claim 3, wherein a lip portion which is in watertight sliding contact with the rudder shaft is formed on the top portion. 5. A color plate inserted into an indent formed in a part of the outer periphery of the rudder shaft and arranged, a rudder shaft support plate detachably mounted on a mounting base plate, a rudder shaft support plate and a color plate. The rotary vane steering machine according to claim 3 or 4, further comprising a rudder-axis fixed metal member including a stay plate for connecting and fixing the steering vane.