CN109572976B - Internally driven ship steering engine - Google Patents

Internally driven ship steering engine Download PDF

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Publication number
CN109572976B
CN109572976B CN201910006510.2A CN201910006510A CN109572976B CN 109572976 B CN109572976 B CN 109572976B CN 201910006510 A CN201910006510 A CN 201910006510A CN 109572976 B CN109572976 B CN 109572976B
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CN
China
Prior art keywords
spiral
sleeve
flange
spline
housing
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Active
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CN201910006510.2A
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Chinese (zh)
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CN109572976A (en
Inventor
杨仁强
谢光辉
吕宏展
关正军
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Chongqing College of Electronic Engineering
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Chongqing College of Electronic Engineering
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Priority to CN201910006510.2A priority Critical patent/CN109572976B/en
Publication of CN109572976A publication Critical patent/CN109572976A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H25/00Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06Steering by rudders
    • B63H25/08Steering gear
    • B63H25/12Steering gear with fluid transmission
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H25/00Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06Steering by rudders
    • B63H25/38Rudders
    • B63H25/382Rudders movable otherwise than for steering purposes; Changing geometry
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H25/00Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06Steering by rudders
    • B63H25/38Rudders
    • B63H25/382Rudders movable otherwise than for steering purposes; Changing geometry
    • B63H2025/384Rudders movable otherwise than for steering purposes; Changing geometry with means for retracting or lifting

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Actuator (AREA)

Abstract

The invention provides an internal driving type ship steering engine, which comprises a piston plate, a piston, an upper oil cylinder cover, a lower oil cylinder cover, a spline synchronous sleeve, a spiral synchronous sleeve, a composite screw rod, a spline sleeve and a spiral sleeve, wherein the spline sleeve is fixedly connected with the spiral sleeve through a thrust flange, and a bidirectional thrust bearing is arranged in the thrust flange; the upper half section of the composite screw is positioned in the spline housing, a straight raceway is processed on the upper half section of the composite screw, the spline synchronizing housing is assembled between the upper half section of the composite screw and the spline housing, the lower half section of the composite screw is positioned in the spiral housing, a spiral raceway is processed on the lower half section of the composite screw, and the spiral synchronizing housing is assembled between the lower half section of the composite screw and the spiral housing; the lower oil cylinder cover and the upper oil cylinder cover are respectively assembled at the bottom and the top of the composite screw rod, the upper oil cylinder cover is sleeved on the piston, and the top of the piston is fixedly connected with the piston plate. The invention can greatly shorten the axial length and volume of the ship steering engine and further improve the power density.

Description

Internally driven ship steering engine
Technical Field
The invention belongs to the technical field of ship steering engines, and particularly relates to an internal driving type ship steering engine.
Background
The steering engine of the ship is an essential key device for controlling the running and sailing of the ship and is a very important facility for directly influencing the forward and backward, rotation and straight sailing of the ship, so that the working performance and the installation quality of the steering engine of the ship have a direct influence on the safety of the ship and personnel, the available space is a very important resource for the ship, especially a military ship, and the steering engine is required to have a simple and compact structure, high power density and better bearing capacity. However, the existing ship steering engine is too long in axial dimension, not compact enough in structure, low in power density and not strong in bearing capacity.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an internal drive type marine steering engine, comprising: the device comprises a piston plate, a piston, an upper oil cylinder cover, a lower oil cylinder cover, a thrust flange, a spline housing, a spline synchronizing housing, a spiral synchronizing housing, a composite screw and a spiral housing; the spline housing is fixedly connected with the spiral housing through a thrust flange, and a bidirectional thrust bearing is arranged in the thrust flange; the composite screw is a hollow screw, the upper half section of the composite screw is positioned in a spline housing, straight raceways are respectively processed at positions of the upper half section of the composite screw corresponding to the spline housing, a spline synchronous housing is assembled between the composite screw and the spline synchronous housing, and balls rolling in the straight raceways are arranged on the spline synchronous housing; the lower half section of the composite screw is positioned in the spiral sleeve, spiral rollways are respectively processed at the positions of the lower half section of the composite screw corresponding to the spiral sleeve, the spiral synchronous sleeve is assembled between the spiral sleeve and the composite screw, and balls rolling in the spiral rollways are arranged on the spiral synchronous sleeve; the lower oil cylinder cover and the upper oil cylinder cover are respectively assembled at the bottom and the top of the composite screw rod, the inner cavity of the composite screw rod is sealed, the upper oil cylinder cover is sleeved on the piston, and the top of the piston is fixedly connected with the piston plate.
In addition, the spline housing and the spiral housing are respectively provided with a flange, the thrust flange is fixed with the flange of the spline synchronizing housing through bolts, and the flange of the spiral housing is fixed between the thrust flange and the flange of the spline synchronizing housing; the bidirectional thrust bearing comprises a spline sleeve and balls arranged in the spline sleeve, and raceways for the balls to roll are respectively arranged at the positions of the flange of the spline sleeve and the flange of the spiral sleeve corresponding to the balls.
In addition, it is preferable that a sealing plate and a steel plate are provided at the connection between the screw bush and the rudder bar.
Compared with the prior art, the internal driving type ship steering engine provided by the invention has the advantages that the hydraulic cylinder is arranged in the inner cavity of the composite screw rod, namely, the inner cavity of the composite screw rod is used as the cylinder sleeve for driving the hydraulic cylinder, so that the axial length of the ship steering engine is shortened, and the improved internal driving type steering engine can be shortened by one third relative to the external internal driving type steering engine of the hydraulic cylinder.
Drawings
Other objects and results of the present invention will become more apparent and readily appreciated by reference to the following description and claims in conjunction with the accompanying drawings and a more complete understanding of the invention. In the drawings:
FIG. 1 is a schematic view of a semi-sectional structure of an internal drive marine steering engine according to an embodiment of the present invention;
FIG. 2 is a schematic view showing a semi-sectional structure of a composite screw according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 2;
FIG. 5 is a schematic view of a semi-sectional structure of a screw sleeve according to an embodiment of the present invention;
FIG. 6 is a view in the direction A of FIG. 5;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 5;
FIG. 8 is a schematic structural view of a spiral synchronization sleeve according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8;
FIG. 10 is a schematic view of a half cross-sectional structure of a spline housing according to an embodiment of the present invention;
FIG. 11 is a right side view of FIG. 10;
FIG. 12 is a schematic view of a half cross-sectional structure of a spline synchronizing sleeve according to an embodiment of the present invention;
FIG. 13 is a cross-sectional view taken along line A-A of FIG. 12;
FIG. 14 is a schematic view of a thrust flange according to an embodiment of the present invention;
FIG. 15 is a schematic view of a bi-directional thrust bearing according to an embodiment of the present invention;
FIG. 16 is a schematic view of a thrust bearing assembly according to an embodiment of the present invention;
fig. 17 is a schematic structural view of a piston according to an embodiment of the present invention.
Wherein reference numerals include: spiral sleeve 1, spiral raceway 101, sealing plate 2, steel sheet 3, compound screw 4, straight raceway 41, spiral raceway 42, spiral synchronizing sleeve 5, ball mounting hole 51, thrust flange 6, threaded hole 61, groove 62, bidirectional thrust bearing 7, spacer 71, ball 72, spline sleeve 8, straight raceway 81, spline synchronizing sleeve 9, ball mounting hole 91, upper oil cylinder cover 10, piston 11, piston plate 12, lower oil cylinder cover 13.
The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.
Detailed Description
In order to further reduce the axial size of the steering engine and enable the structure of the steering engine to be more compact, thereby further improving the power density and simultaneously reducing the restriction of a standard hydraulic cylinder on the multi-model design of the steering engine, the improvement thinking of the invention is as follows: the hydraulic cylinder is arranged in the composite screw rod, namely, the inner cavity of the composite screw rod is used as a cylinder sleeve for driving the hydraulic cylinder, so that the axial length of the steering engine is shortened, and the steering engine is more compact in structure.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 13, an internal driving type ship steering engine according to an embodiment of the present invention includes: the device comprises a spiral sleeve 1, a sealing plate 2, a steel plate 3, a composite screw 4, a spiral synchronous sleeve 5, a thrust flange 6, a bidirectional thrust bearing 7, a spline sleeve 8, a spline synchronous sleeve 9, an upper oil cylinder cover 10, a piston 11, a piston plate 12 and a lower oil cylinder cover 13; the internal driving type ship steering engine is fixed on a ship body through a flange of a spline housing 8 by adopting screws, the spline housing 8 and the spiral housing 1 are respectively provided with flanges, the two flanges are fixedly connected through a thrust flange 6, namely the spline housing 8 and the spiral housing 1 are fixedly connected through the thrust flange 6, and a bidirectional thrust bearing 7 is arranged in the thrust flange 6; the composite screw 4 is a hollow screw, the upper half section of the composite screw 4 is positioned in the spline housing 8, a straight rolling way 41 is processed on the upper half section of the composite screw 4, a straight rolling way 81 matched with the straight rolling way 41 is processed on the inner wall of the spline housing 8 at the position corresponding to the straight rolling way 41, a spline synchronous housing 9 is assembled between the upper half section of the composite screw 4 and the spline housing 8, a ball mounting hole 91 is formed on the spline synchronous housing 9, and balls rolling in the straight rolling way 41 and the straight rolling way 81 are mounted in the ball mounting hole 91; the lower half section of the compound screw 4 is positioned in the screw sleeve 1, a spiral rollaway nest 42 is processed on the lower half section of the compound screw 4, a spiral rollaway nest 101 matched with the spiral rollaway nest 42 is processed on the inner wall of the screw sleeve 1 at a position corresponding to the spiral rollaway nest 42, a spiral synchronizing sleeve 5 is assembled between the screw sleeve 1 and the lower half section of the compound screw 4, a ball mounting hole 51 is formed on the spiral synchronizing sleeve 5, and balls rolling in the spiral rollaway nest 42 and the spiral rollaway nest 101 are mounted in the ball mounting hole 51; the lower oil cylinder cover 13 and the upper oil cylinder 10 cover are respectively assembled at the bottom and the top of the composite screw 4, the inner cavity of the composite screw 4 is sealed, the upper oil cylinder cover 10 is sleeved on the piston 11, and the top of the piston 11 is fixedly connected with the piston plate 12; the sealing plate 2 and the steel plate 3 are arranged at the joint of the spiral sleeve 1 and the rudder bar, and play a role in sealing the internal driving type ship steering engine.
An inner hydraulic driving auxiliary is formed by a composite screw 4, a piston 11, a piston plate 12, an upper oil cylinder cover 10 and a lower oil cylinder cover 13, and an upper cavity of a hydraulic cylinder is formed by the upper half section of the composite screw 4, the piston 11 and the upper oil cylinder cover 10; the lower half section of the compound screw 4, the piston 11 and the lower oil cylinder cover 13 form a lower cavity of the hydraulic cylinder. When the curved inner oil passage of the piston 11 is used for oil feeding, namely the upper cavity of the hydraulic cylinder is used for oil feeding, the oil pressure generates upward thrust on the upper oil cylinder cover 10 due to the fact that the piston 11 is fixed, so that the compound screw 4 is driven to move upwards; similarly, when the straight inner oil passage of the piston 11 is used for oil feeding, namely, the lower cavity of the hydraulic cylinder is used for oil feeding, the oil pressure generates downward thrust on the lower oil cylinder cover 13, so that the compound screw 4 is driven to move downwards.
The rolling spline pair is formed by the balls, the spline synchronizing sleeve 9, the spline sleeve 8 and the straight roller path 41 of the composite screw 4, the balls in the straight roller path 41 drive the spline synchronizing sleeve 9 to move while moving axially, and the spline sleeve 8 is fixed with the ship body, so that the structure limits the movement forms of the composite screw 4 and the spline synchronizing sleeve 9, and the composite screw 4 and the spline synchronizing sleeve 9 can only move axially under the guidance of the straight roller path 41 and cannot rotate.
The rolling screw pair is formed by the balls, the screw synchronous sleeve 5, the screw sleeve 1 and the screw roller path 42 of the compound screw 4, the hydraulic driving pair drives the compound screw 4 to axially move, and at the moment, the screw sleeve 1 rotates under the action of the screw roller path 42 through the balls, so that a rudder stock connected with the screw sleeve 1 is driven to swing.
The thrust flange 6, the spiral sleeve 1, the bidirectional thrust bearing 7 and the spline sleeve 8 form a rolling thrust bearing pair, and the function of the structure is to ensure the relative movement of the spiral sleeve 1 and the spline sleeve 8 and simultaneously unload the axial force generated to the steering engine in the ship working state.
The thrust flange 6 is provided with threaded holes 61 matched with bolts along the radial direction, the thrust flange 6 is fixedly connected with the flange of the spline housing 8 through the bolts, the flange of the spiral housing 1 is fixed between the thrust flange 6 and the flange of the spline housing 8, and a groove 62 for installing the bidirectional thrust bearing 7 is formed in the thrust flange 6.
Since the composite screw 4 has two axial opposite direction linear thrust, the thrust bearing 7 should bear the axial thrust of the opposite direction linear, so that the bidirectional thrust bearing should be used, but if the standard bidirectional thrust bearing is selected, three basic dimensions, namely, the inner hole diameter D, the outer hole diameter D and the width T, need to be determined, and when the inner hole diameter D is greater than 300mm, the width T is about 150mm, so that the axial dimension is excessively large, and the space waste and the strength of other parts are reduced. Therefore, the invention designs a bidirectional thrust bearing without an inner ring and an outer ring under the limit of the structural length. The bidirectional thrust bearing 7 without the inner ring and the outer ring comprises two isolating sleeves 71 and balls 72 arranged in the isolating sleeves 71, wherein rolling paths for the balls 72 to roll are respectively formed in the positions of the flange of the spline sleeve 8, the groove 62 and the flange of the spiral sleeve 1 corresponding to the balls 72, and the inner ring and the outer ring of the bidirectional thrust bearing 7 consist of the flange of the spline sleeve 8, the flange of the spiral sleeve 1 and the thrust flange 6.
The structure of the bidirectional thrust bearing 7 is different from the structure of the existing bidirectional thrust bearing, only has the isolating sleeve 71 and the balls 72, and has no inner and outer rings, and the bidirectional thrust bearing 7 adopting the innovative structure can be designed into any size thrust bearing under the condition that the axial length is not increased, so that the bidirectional thrust bearing has great flexibility. Thrust roller bearings may also be used when the load is particularly high.
The working principle of the invention is as follows: under the action of a hydraulic driving pair arranged in the composite screw 4, the composite screw 4 is driven to move up and down, the rolling spline pair bears the reaction moment transmitted back by the rudder blade, and the composite screw 4 can only move along the axial direction of a straight roller path of the composite screw and cannot rotate; the rolling thrust pair enables the screw sleeve 1 to rotate relative to the fixed spline sleeve 8 and improves the axial stress condition, so that the linear motion of the composite screw 4 is converted into the swing of the screw sleeve 1 through the rolling thrust pair, thereby driving the rudder blade to swing and realizing the steering operation of the ship on the rudder blade.
When the steering operation is performed, when high-pressure oil enters an upper cavity of a hydraulic cylinder, as a piston 11 is fixed, the oil pressure drives a compound screw 4 to move upwards, under the specification of a rolling spline pair, the compound screw 4 moves linearly, and a spiral sleeve 1 connected with the compound screw 4 rotates anticlockwise through the spiral side effect of the right rotation of the spiral sleeve, so that a rudder blade is driven to swing anticlockwise; on the contrary, when high-pressure oil enters the lower cavity of the hydraulic cylinder, the screw sleeve 1 drives the rudder blade to rotate clockwise, so that the reciprocating movement of the composite screw 4 realizes the swinging of the rudder blade, and the rolling spline pair and the thrust pair are used for bearing the forward, reverse and axial reaction force of the rudder blade.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (3)

1. An internally driven marine steering engine, comprising: the device comprises a piston plate, a piston, an upper oil cylinder cover, a lower oil cylinder cover, a spacer bush, a spline housing, a thrust flange, a spline synchronizing bush, a spiral synchronizing bush, a composite screw and a spiral bush; wherein,
The spline housing is fixedly connected with the spiral housing through the thrust flange, and a bidirectional thrust bearing is arranged in the thrust flange;
The composite screw is a hollow screw, the upper half section of the composite screw is positioned in the spline housing, straight raceways are respectively processed at positions corresponding to the upper half section of the composite screw and the spline housing, the spline synchronizing housing is assembled between the upper half section of the composite screw and the spline housing, and balls rolling in the straight raceways are arranged on the spline synchronizing housing; the lower half section of the composite screw is positioned in the spiral sleeve, spiral rollaway nest is respectively processed at the position of the lower half section of the composite screw corresponding to the spiral sleeve, the spiral synchronous sleeve is assembled between the spiral sleeve and the composite screw, and the spiral synchronous sleeve is provided with balls rolling in the spiral rollaway nest;
the lower oil cylinder cover and the upper oil cylinder cover are respectively assembled at the bottom and the top of the composite screw rod, the inner cavity of the composite screw rod is sealed, the upper oil cylinder cover is sleeved on the piston, and the top of the piston is fixedly connected with the piston plate;
The upper half section of the compound screw rod, the piston and the upper oil cylinder cover form an upper cavity of a hydraulic cylinder; the lower half section of the composite screw rod, the piston and the lower oil cylinder cover form a lower cavity of a hydraulic cylinder, and a rolling spline pair is formed by balls, the spline synchronizing sleeve, the spline sleeve and a straight rollaway nest of the composite screw rod; the rolling spiral pair is formed by a ball, the spiral synchronous sleeve, the spiral sleeve and a spiral roller path of the composite screw; the thrust flange, the spiral sleeve, the bidirectional thrust bearing and the spline sleeve form a rolling thrust bearing pair;
The thrust flange is provided with threaded holes matched with the bolts along the radial direction, the thrust flange is fixedly connected with the flange of the spline housing through the bolts, the flange of the spiral housing is fixed between the thrust flange and the flange of the spline housing, and a groove for installing the bidirectional thrust bearing is formed in the thrust flange;
The bidirectional thrust bearing without the inner ring and the outer ring comprises two isolation sleeves and balls arranged in the isolation sleeves, wherein rolling paths for the balls to roll are respectively formed in the positions, corresponding to the balls, of the flange of the spline sleeve, the grooves and the flange of the spiral sleeve, and the inner ring and the outer ring of the bidirectional thrust bearing are composed of the flange of the spline sleeve, the flange of the spiral sleeve and the thrust flange.
2. The internal drive marine steering as claimed in claim 1, wherein,
The spline housing and the spiral housing are respectively provided with a flange, the thrust flange is fixed with the flange of the spline housing through bolts, and the flange of the spiral housing is fixed between the thrust flange and the flange of the spline housing; the bidirectional thrust bearing comprises a spacer sleeve and balls arranged in the spacer sleeve, and raceways for the balls to roll are respectively formed in the positions of the flange of the spline sleeve and the flange of the spiral sleeve corresponding to the balls.
3. The internal drive marine steering as claimed in claim 1, wherein a sealing plate and a steel plate are provided at the junction of the screw sleeve and the steering rod.
CN201910006510.2A 2019-01-04 2019-01-04 Internally driven ship steering engine Active CN109572976B (en)

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CN109572976B true CN109572976B (en) 2024-05-10

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GB1003899A (en) * 1963-03-18 1965-09-08 Fuller Co Power operated hatch cover assembly
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GB1003899A (en) * 1963-03-18 1965-09-08 Fuller Co Power operated hatch cover assembly
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