An intelligent shock-absorbing control system for marine diesel engines

Abstract

The present invention relates to the technical field of marine diesel engines, and specifically relates to a shock-absorbing intelligent control system for a marine diesel engine, which includes a bottom base, a middle inclined seat, a top support plate, a shock-absorbing actuator, and an elastic support assembly. The bottom base and the shock-absorbing actuator are both fixedly arranged on the support structure of the hull. The movable end of the shock-absorbing actuator is connected to the middle inclined seat. A top support plate is also arranged on the middle inclined seat, and a diesel engine is fixedly arranged on the top support plate. The transmission shaft of the diesel engine is connected to a propeller through an elastic coupling, and the transmission shaft is inclined at a certain angle relative to the horizontal plane. The elastic support of the inclined diesel engine is realized through the middle inclined seat, and at the same time, the shock-absorbing actuator can generate a driving force on the middle inclined seat with a phase opposite to the vibration generated by the diesel engine, so as to reduce / cancel the vibration transmitted from the diesel engine to the hull.

Description

Technical Field

[0001] The present invention relates to the technical field of marine diesel engines, and particularly to an intelligent shock-absorbing control system for marine diesel engines. Background Art

[0002] When the propulsion shafting of a ship is in operation, it will inevitably generate vibrations under the influence of various dynamic factors such as propeller hydrodynamic forces, hull deformation, and lubricating films. At the same time, the centrifugal force generated by the rotation of the crankshaft inside the diesel engine will also inevitably cause the diesel engine to vibrate. The imbalance of the crankshaft and the rotating parts of the shafting will generate whirling vibrations. However, in fact, even if the rotating parts of the shafting are completely balanced, after perturbations during their uniform rotation, whirling vibrations will still occur. Diesel engines and propulsion shafting can generate torsional vibrations and lateral vibrations due to uneven torque transmission from the main engine, misalignment in installation, non-uniform materials, inaccurate machining, and imbalance of their own weights.

[0003] According to the specifications of various countries in the world, vibration check calculations must be carried out for marine diesel engines and propulsion shafting to control the vibration source and reduce vibrations, isolate the vibration source and protect equipment and personnel, and avoid resonance and weaken system response by passing through the critical speeds of each stage of diesel engine and shafting vibrations. For the whirling vibrations of marine diesel engines and shafting, the early definition was as follows: a periodic bending deformation phenomenon caused by the rotational imbalance of the diesel engine crankshaft and the propulsion shafting, and the cyclic bending moment generated by the propeller working in an uneven wake field.

[0004] In a ship, depending on the angle of the drive transmission shaft of the propulsion device, etc., the engine is sometimes supported in a state inclined relative to the horizontal plane. For an inclined marine diesel engine, its support structure needs to consider vibrations in more factors and directions, and a specially designed shock-absorbing system is required to suppress the displacement of the diesel engine in the direction along the ship's hull. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an intelligent shock-absorbing control system for marine diesel engines, which realizes elastic support for the inclined diesel engine through a central inclined seat, and can also generate a driving force with a phase opposite to the vibration generated by the diesel engine on the central inclined seat through a shock-absorbing actuator to reduce / cancel the vibration transmitted from the diesel engine towards the hull.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A marine diesel engine shock-absorbing intelligent control system, comprising a bottom base, a middle inclined seat, a top support plate, a shock-absorbing actuator and an elastic support assembly. The bottom base and the shock-absorbing actuator are both fixedly arranged on the support structure of the hull. The movable end of the shock-absorbing actuator is connected to the middle inclined seat. A top support plate is also arranged on the middle inclined seat. A diesel engine is fixedly arranged on the top support plate. The transmission shaft of the diesel engine is connected to a propeller through an elastic coupling. The transmission shaft is inclined at a certain angle relative to the horizontal plane;

[0008] A base diagonal brace plate is arranged at the end of the bottom base. The middle inclined seat comprises a middle flat plate, an inclined plate and an end diagonal brace plate. The middle flat plate and the inclined plate have a certain angle, such that the extending direction of the inclined plate is parallel to the extending direction of the transmission shaft. The end diagonal brace plate is fixedly arranged at the end of the middle flat plate and close to the side where the transmission shaft extends out of the diesel engine;

[0009] A plurality of elastic support assemblies are arranged between the upper end of the bottom base and the middle flat plate of the middle inclined seat, between the inclined plate of the middle inclined seat and the top support plate, and between the base diagonal brace plate of the bottom base and the end diagonal brace plate of the middle inclined seat. Through the elastic support assemblies, the vibration transmitted from the diesel engine towards the hull can be reduced / cancelled out;

[0010] A ranging receiver is arranged on the bottom base, and a ranging transmitter is arranged on the middle inclined seat. Through the ranging transmitter and the ranging receiver, the current state of the middle inclined seat can be obtained. The shock-absorbing actuator generates a driving force applied to the middle inclined seat according to the current state of the middle inclined seat and the rotation phase of the crankshaft of the diesel engine to reduce / cancel out the vibration transmitted from the diesel engine towards the hull;

[0011] There are a plurality of shock-absorbing actuators, which are symmetrically distributed on both sides of the middle inclined seat along the extending direction of the transmission shaft.

[0012] Furthermore, the bottom base further comprises a bottom plate, a swing arm hinge seat and a vertical support part;

[0013] The bottom plate is fixedly connected to the hull. Swing arm hinge seats are also fixedly arranged on both sides of the bottom plate. The swing arm hinge seats are hinged to the swing arm assemblies of the shock-absorbing actuators,

[0014] The vertical support portion is fixedly arranged at the end of the bottom plate, the base diagonal support plate is inclined and respectively fixedly connected to the bottom plate and the vertical support portion to form a stable triangular structure, the vertical support portion is located on the side of the base diagonal support plate away from the elastic support assembly, and the vertical support portion and the base diagonal support plate are used to bear the lateral force generated by the diesel engine on the central inclined seat.

[0015] Further, the central tilting seat further comprises an oblique support portion, the central flat plate and the bottom plate both extend in the horizontal direction, the oblique support portion is fixedly connected to the tilting plate at an approximately vertical angle, and the oblique support portion is obliquely fixed to the central flat plate, the other end of the tilting plate is connected to the central flat plate, and the cross section of the support structure surrounded by the central flat plate, the oblique support portion and the tilting plate is a right triangle;

[0016] An end diagonal support plate is fixedly supported at the connection position between the central flat plate and the inclined plate, and the extension directions of the diagonal support portion, the end diagonal support plate and the base diagonal support plate are approximately parallel;

[0017] One end of a plurality of elastic support components arranged side by side is connected to the central flat plate, and the other end is connected to the bottom plate, so as to reduce / offset the vibration in the vertical direction generated by the diesel engine;

[0018] One end of a plurality of elastic support components arranged side by side is connected to the end diagonal support plate, and the other end is connected to the base diagonal support plate to reduce / offset the vibration generated by the diesel engine in the horizontal direction.

[0019] Furthermore, the top support plate includes a top plate base, a diesel engine connection seat, an end support plate, and a rolling support portion;

[0020] The upper end of the top plate base is fixedly connected to the diesel engine via a diesel engine connection seat;

[0021] The top plate base is arranged parallel to the inclined plate, an end support plate is fixedly arranged at the end of the top plate base close to the end diagonal support plate, a rolling support portion is arranged on the end support plate, and further the rolling support portion is a sliding support structure composed of a plurality of rolling balls, and the rolling support portion is supported on the end diagonal support plate;

[0022] The horizontal force generated by the diesel engine is transmitted to the end diagonal support plate through the rolling support portion, and the end support plate can be movably supported on the end diagonal support plate.

[0023] Furthermore, the shock-absorbing actuator includes a support base, a drive motor, a lower swing arm, an upper swing arm, a lever arm and a lifting arm;

[0024] The support base is fixedly arranged on the support structure of the hull, the upper end of the support base is rotatably connected to the middle part of the lever arm through a hinge seat, one end of the lever arm is hinged to the lifting arm, the other end of the lever arm is hinged to the upper swing arm, the lower end of the upper swing arm is hinged to the lower swing arm, the lower swing arm is rotatably supported and arranged on the swing arm hinge seat, and the lower end of the lifting arm is connected to the middle flat plate;

[0025] The driving motor is fixedly arranged on the supporting base, and the driving motor is transmission-connected with the lower swing arm and the upper swing arm through a reciprocating mechanism.

[0026] Furthermore, the reciprocating mechanism on the driving motor includes a driving rotating arm, a transmission arm, an omnidirectional articulated seat and a rotating pin;

[0027] The hinge shaft between the lower swing arm and the upper swing arm is connected to the omnidirectional articulated seat, the output end of the driving motor is connected to the driving rotating arm, the driving rotating arm is rotatably provided with a transmission arm through a rotating pin, and the transmission arm is rotatably connected to the omnidirectional articulated seat;

[0028] The driving rotating arm is also provided with a plurality of adjustment holes, through which the transmission arm can be hinged to different positions of the driving rotating arm to change the reciprocating movement amplitude of the omnidirectional articulated seat, thereby changing the movement amplitude of the sliding block;

[0029] A reinforcing support plate is also provided on the support base.

[0030] Furthermore, the distance measuring transmitter and the distance measuring receiver are arranged in pairs and there are multiple groups, the distance measuring transmitter is arranged on both sides of the central flat plate, and the distance measuring receiver is arranged on the bottom plate at a position corresponding to the distance measuring transmitter;

[0031] The control device receives the signals of the ranging transmitter and the ranging receiver to obtain the posture information of the central tilting seat, and the control device also obtains the rotation phase information of the crankshaft of the diesel engine;

[0032] The control device controls the rotation phase of the driving motor of the shock-absorbing actuator according to the received information, and reduces / offsets the vibration generated by the diesel engine and transmitted toward the hull through the actuation force of the shock-absorbing actuator on the central tilting seat.

[0033] Compared with the prior art, the present invention provides a marine diesel engine shock absorption intelligent control system, which has the following beneficial effects:

[0034] 1. Between the end diagonal brace plates of the middle inclined seat and the base diagonal brace plates of the bottom base of the present invention, multiple groups of elastic support components are provided, which can effectively reduce the horizontal vibration generated by the inclined diesel engine; at the same time, a rolling support part is provided between the end brace plate of the top support plate and the end diagonal brace plate of the middle inclined seat, which can enable the end brace plate to slidably support on the end diagonal brace plate to transfer the horizontal force generated by the inclined diesel engine to the middle inclined seat.

[0035] 2. Elastic support components are provided on the upper side, lower side and one side in the inclined direction of the diesel engine of the middle inclined seat of the present invention. At the same time, a damping actuator generates a driving force with a phase opposite to the vibration generated by the diesel engine on the middle inclined seat to reduce / cancel the vibration transmitted towards the hull generated by the diesel engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of the overall structure of the marine diesel engine shock absorption device of the present invention;

[0037] Figure 2 is a front view schematic diagram of the diesel engine shock absorption device of the present invention;

[0038] Figure 3 is a rear view schematic diagram of the diesel engine shock absorption device of the present invention;

[0039] Figure 4 is a schematic diagram of the structure of the damping actuator of the present invention;

[0040] Figure 5 is a schematic diagram of the driving structure of the damping actuator of the present invention;

[0041] Figure 6 is a front view of the diesel engine shock absorption device of the present invention;

[0042] Figure 7 is a schematic diagram of the ranging device of the present invention;

[0043] In the figure:

[0044] Bottom base 1, bottom plate 11, swing arm hinge seat 12, base diagonal brace plate 13, vertical support part 14;

[0045] Middle inclined seat 2, middle flat plate 21, diagonal brace part 22, inclined plate 23, end diagonal brace plate 24;

[0046] Top support plate 3, top plate base body 31, diesel engine connection seat 32, end brace plate 33, rolling support part 34;

[0047] Vibration damping actuator 4, support base 41, avoidance portion 411, reinforcing support plate 412, hinge portion 413, drive motor 42, drive swing arm 421, transmission arm 422, omnidirectional hinge seat 423, rotation pin 424, adjustment hole 425, lower swing arm 43, upper swing arm 44, lever arm 45, lifting arm 46;

[0048] Diesel engine 5; transmission shaft 6; elastic coupling 7; propeller 8; hull 9;

[0049] Elastic support assembly 10, ranging transmitter 101, ranging receiver 102. Specific embodiments

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] The following is based on the attached Figure 1-7 The marine diesel engine vibration damping intelligent control system of the present invention will be described in detail below. The system includes a bottom base 1, a middle inclined seat 2, a top support plate 3, a vibration damping actuator 4 and an elastic support assembly 10. The bottom base 1 and the vibration damping actuator 4 are both fixedly arranged on the support structure of the hull 9. The movable end of the vibration damping actuator 4 is connected to the middle inclined seat 2. A top support plate 3 is also arranged on the middle inclined seat 2. A diesel engine 5 is fixedly arranged on the top support plate 3. The transmission shaft 6 of the diesel engine 5 is connected to the propeller 8 through an elastic coupling 7. The transmission shaft 6 is inclined at a certain angle relative to the horizontal plane;

[0052] A base diagonal brace plate 13 is arranged at the end of the bottom base 1. The middle inclined seat 2 includes a middle flat plate 21, an inclined plate 23 and an end diagonal brace plate 24. The middle flat plate 21 and the inclined plate 23 have a certain angle, so that the extending direction of the inclined plate 23 is parallel to the extending direction of the transmission shaft 6. The end diagonal brace plate 24 is fixedly arranged at the end of the middle flat plate 21 and close to the side where the transmission shaft 6 extends out of the diesel engine 5;

[0053] A plurality of elastic support components 10 are arranged between the upper end of the bottom base 1 and the middle flat plate 21 of the middle tilting seat 2, a plurality of elastic support components 10 are arranged between the tilting plate 23 of the middle tilting seat 2 and the top support plate 3, and a plurality of elastic support components 10 are arranged between the base diagonal support plate 13 of the bottom base 1 and the end diagonal support plate 24 of the middle tilting seat 2, and the vibration generated by the diesel engine 5 and transmitted toward the hull 9 can be reduced / offset by the elastic support components 10;

[0054] The bottom base 1 is provided with a distance measuring receiver 102, and the central tilting seat 2 is provided with a distance measuring transmitter 101, through which the current state of the central tilting seat 2 can be obtained, and the shock absorbing actuator 4 generates an actuating force applied to the central tilting seat 2 according to the current state of the central tilting seat 2 and the rotation phase of the crankshaft of the diesel engine 5 to reduce / offset the vibration generated by the diesel engine 5 and transmitted toward the hull 9;

[0055] There are multiple damping actuators 4 , which are symmetrically distributed on both sides of the central tilting seat 2 in the extending direction of the transmission shaft 6 .

[0056] Furthermore, the bottom base 1 also includes a bottom plate 11, a swing arm hinge seat 12 and a vertical support portion 14;

[0057] The bottom plate 11 is fixedly connected to the hull 9, and swing arm hinge seats 12 are fixedly arranged on both sides of the bottom plate 11. The swing arm hinge seats 12 are hinged to the swing arm assembly of the shock absorbing actuator 4.

[0058] The vertical support portion 14 is fixedly arranged at the end of the bottom plate 11, the base diagonal support plate 13 is inclined and fixedly connected to the bottom plate 11 and the vertical support portion 14 respectively to form a stable triangular structure, the vertical support portion 14 is located on the side of the base diagonal support plate 13 away from the elastic support assembly 10, and the vertical support portion 14 and the base diagonal support plate 13 are used to bear the lateral force generated by the diesel engine 5 on the central inclined seat 2.

[0059] Further, the central tilting seat 2 further includes an oblique support portion 22, the central flat plate 21 and the bottom plate 11 both extend in the horizontal direction, the oblique support portion 22 is fixedly connected to the inclined plate 23 at an approximately vertical angle, and the oblique support portion 22 is obliquely fixed to the central flat plate 21, the other end of the inclined plate 23 is connected to the central flat plate 21, and the cross section of the support structure surrounded by the central flat plate 21, the oblique support portion 22, and the inclined plate 23 is a right triangle;

[0060] An end diagonal support plate 24 is fixedly supported at the connection position between the central flat plate 21 and the inclined plate 23, and the extending directions of the diagonal support portion 22, the end diagonal support plate 24, and the base diagonal support plate 13 are approximately parallel;

[0061] One end of a plurality of elastic support assemblies 10 arranged side by side is connected to the middle plate 21, and the other end is connected to the bottom plate 11, so as to reduce / offset the vibration in the vertical direction generated by the diesel engine 5;

[0062] One end of a plurality of elastic support assemblies 10 arranged side by side is connected to the end diagonal support plate 24 , and the other end is connected to the base diagonal support plate 13 , so as to reduce / offset the vibration in the horizontal direction generated by the diesel engine 5 .

[0063] Furthermore, the top support plate 3 includes a top plate base 31, a diesel engine connection seat 32, an end support plate 33, and a rolling support portion 34;

[0064] The upper end of the top plate base 31 is fixedly connected to the diesel engine 5 via a diesel engine connection seat 32;

[0065] The top plate base 31 is arranged parallel to the inclined plate 23, and an end support plate 33 is fixedly arranged at the end of the top plate base 31 close to the end diagonal support plate 24, and a rolling support portion 34 is arranged on the end support plate 33, and further, the rolling support portion 34 is a sliding support structure composed of a plurality of rolling balls, and the rolling support portion 34 is supported on the end diagonal support plate 24;

[0066] The horizontal force generated by the diesel engine 5 is transmitted to the end diagonal support plate 24 through the rolling support portion 34 , and the end support plate 33 can be movably supported on the end diagonal support plate 24 .

[0067] Furthermore, the shock absorbing actuator 4 includes a support base 41, a driving motor 42, a lower swing arm 43, an upper swing arm 44, a lever arm 45 and a lifting arm 46;

[0068] The support base 41 is fixedly arranged on the support structure of the hull 9, the upper end of the support base 41 is rotatably connected to the middle part of the lever arm 45 through a hinge seat, one end of the lever arm 45 is hinged to the lifting arm 46, the other end of the lever arm 45 is hinged to the upper swing arm 44, the lower end of the upper swing arm 44 is hinged to the lower swing arm 43, the lower swing arm 43 is rotatably supported and arranged on the swing arm hinge seat 12, and the lower end of the lifting arm 46 is connected to the central flat plate 21;

[0069] The driving motor 42 is fixedly disposed on the supporting base 41 , and the driving motor 42 is transmission-connected to the lower swing arm 43 and the upper swing arm 44 through a reciprocating mechanism.

[0070] Further, the reciprocating mechanism on the drive motor 42 includes a drive swing arm 421, a transmission arm 422, an omnidirectional hinge seat 423, and a rotating pin 424;

[0071] The hinge shaft between the lower swing arm 43 and the upper swing arm 44 is connected to the omnidirectional hinge seat 423. The output end of the drive motor 42 is connected to the drive swing arm 421. The drive swing arm 421 is rotatably provided with a transmission arm 422 through a rotating pin 424, and the transmission arm 422 is rotatably connected to the omnidirectional hinge seat 423;

[0072] The drive swing arm 421 is further provided with a plurality of adjustment holes 425. Through the adjustment holes 425 and the rotating pin 424, the transmission arm 422 can be hinged at different positions on the drive swing arm 421 to change the amplitude of the reciprocating movement of the omnidirectional hinge seat 423, and further change the movement amplitude of the slider 47;

[0073] The support base 41 is further provided with a reinforcing support plate 412.

[0074] Further, the ranging transmitters 101 and the ranging receivers 102 are arranged in pairs and there are multiple groups. The ranging transmitters 101 are arranged on both sides of the middle flat plate 21, and the ranging receivers 102 are arranged on the bottom plate 11 at positions corresponding to the ranging transmitters 101;

[0075] The control device receives the signals of the ranging transmitters 101 and the ranging receivers 102 to obtain the attitude information of the middle tilting seat 2. At the same time, the control device also obtains the rotation phase information of the crankshaft of the diesel engine 5;

[0076] The control device controls the rotation phase of the drive motor 42 of the shock absorption actuator 4 according to the received information, and reduces / cancels the vibration transmitted from the diesel engine 5 to the hull 9 through the driving force of the shock absorption actuator 4 on the middle tilting seat 2.

[0077] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine diesel engine shock absorption intelligent control system, comprising a bottom base (1), a middle inclined seat (2), a top support plate (3), a shock absorption actuator (4) and an elastic support assembly (10), characterized in that: The bottom base (1) and the shock absorption actuator (4) are both fixedly arranged on the support structure of the hull (9). The movable end of the shock absorption actuator (4) is connected to the middle inclined seat (2). A top support plate (3) is also arranged on the middle inclined seat (2). A diesel engine (5) is fixedly arranged on the top support plate (3). The transmission shaft (6) of the diesel engine (5) is connected to a propeller (8) through an elastic coupling (7). The transmission shaft (6) is inclined at a certain angle relative to the horizontal plane; An end base brace plate (13) is arranged at the end of the bottom base (1). The middle inclined seat (2) includes a middle flat plate (21), an inclined plate (23) and an end brace plate (24). The middle flat plate (21) and the inclined plate (23) have a certain angle, such that the extending direction of the inclined plate (23) is parallel to the extending direction of the transmission shaft (6). The end brace plate (24) is fixedly arranged at the end of the middle flat plate (21) and close to the side where the transmission shaft (6) extends out of the diesel engine (5); A plurality of elastic support assemblies (10) are arranged between the upper end of the bottom base (1) and the middle flat plate (21) of the middle inclined seat (2). A plurality of elastic support assemblies (10) are arranged between the inclined plate (23) of the middle inclined seat (2) and the top support plate (3). A plurality of elastic support assemblies (10) are arranged between the end base brace plate (13) of the bottom base (1) and the end brace plate (24) of the middle inclined seat (2). Through the elastic support assemblies (10), the vibration transmitted from the diesel engine (5) towards the hull (9) can be reduced or offset; A ranging receiver (102) is arranged on the bottom base (1), and a ranging transmitter (101) is arranged on the middle inclined seat (2). Through the ranging transmitter (101) and the ranging receiver (102), the current state of the middle inclined seat (2) can be obtained. The shock absorption actuator (4) generates an actuating force applied to the middle inclined seat (2) according to the current state of the middle inclined seat (2) and the rotation phase of the crankshaft of the diesel engine (5) to reduce or offset the vibration transmitted from the diesel engine (5) towards the hull (9).

2. The marine diesel engine shock absorption intelligent control system according to claim 1, characterized in that: There are a plurality of the shock absorption actuators (4), and they are symmetrically distributed on both sides of the middle inclined seat (2) along the extending direction of the transmission shaft (6).

3. The marine diesel engine shock absorption intelligent control system according to claim 2, characterized in that: The bottom base (1) further includes a bottom plate (11), a swing arm hinge seat (12) and a vertical support portion (14); The bottom plate (11) is fixedly connected to the hull (9), and swing arm hinge seats (12) are fixedly provided on both sides of the bottom plate (11). The swing arm hinge seats (12) are hingedly connected to the swing arm assembly of the shock absorbing actuator (4). The vertical support portion (14) is fixedly arranged at the end of the bottom plate (11); the base oblique support plate (13) is arranged obliquely and is respectively fixedly connected to the bottom plate (11) and the vertical support portion (14) to form a stable triangular structure; the vertical support portion (14) is located on a side of the base oblique support plate (13) away from the elastic support assembly (10); the vertical support portion (14) and the base oblique support plate (13) are used to bear the lateral force generated by the diesel engine (5) on the central inclined seat (2).

4. The intelligent control system for vibration reduction of marine diesel engines according to claim 3 is characterized in that: The central tilting seat (2) further comprises an oblique support portion (22), the central flat plate (21) and the bottom plate (11) both extend in the horizontal direction, the oblique support portion (22) and the tilting plate (23) are fixedly connected at an approximately vertical angle, and the oblique support portion (22) is obliquely fixed on the central flat plate (21), the other end of the tilting plate (23) is connected to the central flat plate (21), and the cross section of the support structure formed by the central flat plate (21), the oblique support portion (22) and the tilting plate (23) is a right triangle; An end diagonal support plate (24) is also fixedly supported at the connection position between the central flat plate (21) and the inclined plate (23), and the extension directions of the diagonal support portion (22), the end diagonal support plate (24) and the base diagonal support plate (13) are approximately parallel.

5. The intelligent control system for vibration reduction of marine diesel engines according to claim 4 is characterized in that: One end of a plurality of elastic support assemblies (10) arranged side by side is connected to the central flat plate (21), and the other end is connected to the bottom plate (11), so as to reduce or offset the vibration in the vertical direction generated by the diesel engine (5); One end of a plurality of elastic support assemblies (10) arranged side by side is connected to the end diagonal support plate (24), and the other end is connected to the base diagonal support plate (13) to reduce or offset the vibration in the horizontal direction generated by the diesel engine (5).

6. The intelligent control system for vibration reduction of marine diesel engines according to claim 5 is characterized in that: The top support plate (3) comprises a top plate base (31), a diesel engine connection seat (32), an end support plate (33), and a rolling support portion (34); The upper end of the top plate base (31) is fixedly connected to the diesel engine (5) via a diesel engine connection seat (32); The top plate base body (31) is arranged in parallel with the inclined plate (23). An end support plate (33) is fixedly arranged at the end of the top plate base body (31) close to the end inclined support plate (24). A rolling support part (34) is arranged on the end support plate (33). The rolling support part (34) is a sliding support structure composed of a plurality of rolling balls. The rolling support part (34) supports on the end inclined support plate (24). The horizontal force generated by the diesel engine (5) is transmitted to the end inclined support plate (24) through the rolling support part (34), and the end support plate (33) can be movably supported on the end inclined support plate (24).

7. The intelligent shock absorption control system for marine diesel engines according to claim 6, characterized in that: The shock absorption actuating part (4) includes a support base (41), a driving motor (42), a lower swing arm (43), an upper swing arm (44), a lever arm (45) and a lifting arm (46). The support base (41) is fixedly arranged on the support structure of the hull (9). The upper end of the support base (41) is rotatably connected to the middle part of the lever arm (45) through a hinge seat. One end of the lever arm (45) is hinged to the lifting arm (46). The other end of the lever arm (45) is hinged to the upper swing arm (44). The lower end of the upper swing arm (44) is hinged to the lower swing arm (43). The lower swing arm (43) is rotatably supported on the swing arm hinge seat (12). The lower end of the lifting arm (46) is connected to the middle flat plate (21). The driving motor (42) is fixedly arranged on the support base (41), and the driving motor (42) is in transmission connection with the lower swing arm (43) and the upper swing arm (44) through a reciprocating mechanism.

8. The intelligent shock absorption control system for marine diesel engines according to claim 7, characterized in that: The reciprocating mechanism on the driving motor (42) includes a driving rotating arm (421), a transmission arm (422), an omnidirectional hinge seat (423) and a rotating pin (424). The hinge shaft between the lower swing arm (43) and the upper swing arm (44) is connected to the omnidirectional hinge seat (423). The output end of the driving motor (42) is connected to the driving rotating arm (421). The driving rotating arm (421) is rotatably provided with a transmission arm (422) through a rotating pin (424). The transmission arm (422) is rotatably connected to the omnidirectional hinge seat (423). A plurality of adjusting holes (425) are further arranged on the driving rotating arm (421). Through the adjusting holes (425) and the rotating pin (424), the transmission arm (422) can be hinged at different positions of the driving rotating arm (421) to change the amplitude of the reciprocating movement of the omnidirectional hinge seat (423), and further change the movement amplitude of the sliding block (47). A reinforcing support plate (412) is further arranged on the support base (41).

9. The intelligent shock absorption control system for marine diesel engines according to claim 8, characterized in that: The ranging transmitters (101) and ranging receivers (102) are arranged in pairs and there are multiple groups. The ranging transmitters (101) are arranged on both sides of the middle plate (21), and the ranging receivers (102) are arranged on the bottom plate (11) at positions corresponding to the ranging transmitters (101); The control device receives the signals of the ranging transmitters (101) and ranging receivers (102) to obtain the attitude information of the middle tilting seat (2). At the same time, the control device also obtains the rotation phase information of the crankshaft of the diesel engine (5); The control device controls the rotation phase of the drive motor (42) of the shock absorption actuator (4) according to the received information, and reduces or cancels the vibration transmitted to the hull (9) generated by the diesel engine (5) through the acting force of the shock absorption actuator (4) on the middle tilting seat (2).

Images