A vibration-resistant reinforcement structure between the main engine room and the oil separator room

Abstract

The present invention relates to the technical field of ship design, manufacturing and installation, and specifically to a vibration-resistant reinforcement structure located between a main engine room and an oil separator room, comprising a longitudinal vibration-resistant wall arranged between the main engine room and the oil separator room of the ship, the longitudinal vibration-resistant wall being used to install an auxiliary vibration-resistant support connected to a main engine in the main engine room of the ship, the longitudinal vibration-resistant wall comprising an upper wall and a lower wall connected in an integrated manner, the upper end of the upper wall being connected to an upper deck, the lower end of the lower wall being connected to a lower deck, the lower wall being a plurality of piers arranged at intervals in the longitudinal direction, each of the piers being provided with a waist-shaped hole in the middle through which personnel can pass in the longitudinal direction of the ship; a bridge hole serving as a transverse passage is formed between the two adjacent piers, and the waist-shaped holes of each pier form a longitudinal passage in the longitudinal direction. The present invention facilitates the passage of crew members while ensuring structural strength and reducing vibration of the main engine.

Description

Technical Field

[0001] The invention relates to the technical field of ship design, manufacturing and installation, and in particular to an anti-vibration reinforcement structure located between a main engine room and an oil separator room. Background Art

[0002] The ship's main engine will generate vibrations during operation, which will affect the comfort and maneuverability of the ship. In order to reduce the vibration of the main engine, a lateral auxiliary support can be set on the main engine after it is installed. However, in order to fix the lateral auxiliary support, a special support reinforcement structure is required, and the setting of the support reinforcement structure will have a negative impact on the passage layout in the cabin. For example, in a large refrigerated container ship, the support reinforcement structure is set on the side of the oil separator room in the main engine room, blocking the deck passage. Personnel can only enter the oil separator room from the large opening of the main engine room staircase, and then come out of the oil separator room to reach the deck passage. As a result, personnel need to open and close doors within a short distance when passing, and using the oil separator room as the main passage will affect the convenience of passage. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes an anti-vibration reinforcement structure located between the main engine room and the oil separator room, which aims to ensure structural strength, reduce main engine vibration, and facilitate the passage of crew members. The specific technical solution is as follows:

[0004] A vibration-resistant reinforcement structure located between a main engine room and an oil separator room, comprising a longitudinal vibration-resistant wall arranged between the main engine room of the ship and the oil separator room, the longitudinal vibration-resistant wall being used to install an auxiliary vibration-resistant support connected to a main engine in the main engine room of the ship, the longitudinal vibration-resistant wall comprising an upper wall section and a lower wall section which are integrally connected, the upper end of the upper wall section being connected to an upper deck, the lower end of the lower wall section being connected to a lower deck, the lower wall section being a plurality of piers arranged at intervals in the longitudinal direction, each of the piers being provided in the middle with a waist-shaped hole through which personnel can pass in the longitudinal direction of the ship; a bridge hole serving as a transverse passage is formed between two adjacent piers, and the waist-shaped holes of each pier form a longitudinal passage in the longitudinal direction.

[0005] Preferably, the longitudinal vibration-proof wall includes a pair of longitudinal wall panels, a horizontal connecting plate arranged between the pair of longitudinal wall panels, and a number of transverse ribs erected in the up and down directions between the pair of longitudinal wall panels and arranged in a cross shape with the horizontal connecting plates; the portion of the longitudinal vibration-proof wall located above the horizontal connecting plate is the upper wall section, and the portion of the longitudinal vibration-proof wall located below the horizontal connecting plate is the lower wall section; an inverted U-shaped hole serving as the bridge hole is opened on the longitudinal wall panel located at the lower wall section, and a waist-shaped hole serving as the longitudinal channel is opened on the transverse rib plate located at the lower wall section.

[0006] Preferably, welding construction holes for facilitating welding are opened on the longitudinal wall panels located at the upper wall section, and welding construction holes for facilitating welding are opened on the transverse rib panels located at the upper wall section.

[0007] In the present invention, longitudinal bulkheads for separating the main engine room and the oil separator are respectively connected to the front and rear ends of the longitudinal anti-vibration wall, and the longitudinal bulkheads are connected to the ends of the longitudinal anti-vibration wall on the side of the oil separator room.

[0008] In the present invention, a transverse pedestrian hole is provided on the longitudinal bulkhead.

[0009] In the present invention, one end of the auxiliary anti-vibration support is connected to the main machine, and the other end of the auxiliary anti-vibration support is connected to the portion between the upper wall section and the lower wall section of the longitudinal anti-vibration wall.

[0010] As a further improvement of the present invention, a vibration absorbing device is further arranged on the outer wall surface of the longitudinal wall panel near the cross-shaped intersection of the horizontal connecting plate and the transverse rib plate; the vibration absorbing device includes a cross-shaped vibration absorbing plate and a transition connecting plate connected to the cross-shaped vibration absorbing plate; a pair of radial grooves are respectively provided on the cross-shaped vibration absorbing plate and at each crosshead position of the cross-shaped vibration absorbing plate, and the plate body portion located between the pair of radial grooves forms a simply supported beam type leaf spring, a threaded hole is provided on the simply supported beam type leaf spring, the cross-shaped vibration absorbing plate is fixedly connected to the longitudinal wall panel, and the transition connecting plate is fixed to the simply supported beam type leaf spring of the cross-shaped vibration absorbing plate by a fastening screw connected to the threaded hole.

[0011] Preferably, the cross-shaped vibration absorbing plate is fixedly connected to the longitudinal wall panel by fastening bolts.

[0012] In the present invention, a recessed groove is arranged on the back of each crosshead position of the cross-shaped vibration absorbing plate, and the simply supported beam leaf spring and the radial groove are arranged within the range of the recessed groove, so that the back plane of the simply supported beam leaf spring and the longitudinal wall panel do not contact each other.

[0013] In the present invention, a washer is provided at the fastening screw connection between the transition connection plate and the cross-shaped vibration absorbing plate so that a non-contact gap is formed between the transition connection plate and the cross-shaped vibration absorbing plate.

[0014] As a further improvement of the present invention, the vibration absorbing device also includes a vibration absorbing frequency adjusting device, which includes an inner clamping plate radially movable in the sinking groove, an outer clamping plate arranged on the front side of the cross-shaped vibration absorbing plate and located at a position corresponding to the inner clamping plate, the inner clamping plate and the outer clamping plate are clamped and fixed on the cross-shaped vibration absorbing plate by connecting screws inserted into the radial grooves, and a tightening screw for supporting the simply supported beam type leaf spring is arranged on the outer clamping plate.

[0015] The working principle of the vibration absorption frequency adjustment device is: by adjusting the radial position of a pair of clamping plates (including outer clamping plates and inner clamping plates), the length between the two end fixed point positions of the simply supported beam type leaf spring can be changed, thereby changing the rigidity and vibration absorption frequency of the simply supported beam type leaf spring.

[0016] Preferably, the tightening screw is also provided with a locking nut for preventing loosening.

[0017] Preferably, a plurality of threaded connection holes may be provided on the transition connection plate to facilitate the installation and fixation of the auxiliary anti-vibration support.

[0018] The method of using the above vibration absorbing device is as follows: after the main engine in the main engine room of the ship is installed, the auxiliary anti-vibration support is connected between the transition connection plate of the vibration absorbing device and the main engine, the main engine is started for testing, and the vibration of the main engine is measured using a vibration meter. By adjusting the radial position of a pair of clamping plates (four places in total) on the vibration absorbing device, the vibration of the main engine is minimized. After the debugging is completed, the outer clamping plate is fixed by spot welding.

[0019] Preferably, each bolt and screw can be reinforced with a conventional anti-loosening structure.

[0020] The beneficial effects of the present invention are:

[0021] First, the vibration-resistant reinforcement structure between the main engine room and the oil separator room of the present invention adopts a pier-type wall as the vibration-resistant reinforcement structure, and waist-shaped holes are opened on the transverse ribs of the pier-type wall as longitudinal passages, which greatly facilitates the passage of crew members while ensuring the structural strength.

[0022] Secondly, the present invention provides a vibration-resistant reinforcement structure located between the main engine room and the oil separator room. A vibration absorbing device is provided on the pier-type wall. The vibration of the ship's main engine is transmitted to the simply supported beam leaf spring through the auxiliary vibration-resistant support, thereby effectively reducing the vibration of the main engine and making the main engine work smoothly.

[0023] Thirdly, the vibration-resistant reinforcement structure of the present invention is located between the main engine room and the oil separator room. The vibration absorbing device can adjust the vibration absorbing frequency through the vibration absorbing frequency adjusting device, so that the vibration absorbing frequency can be optimized, thereby further improving the stability of the main engine operation.

[0024] Fourthly, the vibration-resistant reinforcement structure of the present invention is located between the main engine room and the oil separator room. The vibration-absorbing frequency adjustment devices located at four positions on the cross-shaped vibration-absorbing plate can be adjusted separately, so as to achieve the maximum vibration elimination under the condition of asymmetric exciting force. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the position of a vibration-resistant reinforcement structure located between the main engine room and the oil separator room of the present invention;

[0026] Figure 2 yes Figure 1 The three-dimensional structural diagram of the anti-vibration reinforcement structure is involved;

[0027] Figure 3 yes Figure 2 A partial enlarged view of

[0028] Figure 4 yes Figure 2 and Figure 3 A schematic diagram of a two-dimensional structure after a vibration absorbing device is installed on the longitudinal anti-vibration wall;

[0029] Figure 5 yes Figure 4 Schematic diagram of the structure of the cross-shaped vibration absorbing plate;

[0030] Figure 6 yes Figure 5 AA view of the .

[0031] In the figure: 1, ship main engine room, 2, oil separator room, 3, longitudinal vibration-resistant wall, 4, upper wall, 5, lower wall, 6, upper deck, 7, lower deck, 8, bridge pier, 9, waist-shaped hole, 10, auxiliary vibration-resistant support, 11, longitudinal channel, 12, longitudinal wall panel, 13, horizontal connecting plate, 14, transverse rib plate, 15, bridge hole (inverted U-shaped hole), 16, welding construction hole, 17, longitudinal bulkhead, 18, transverse pedestrian hole, 19, vibration absorption device, 20, cross-shaped vibration absorption plate, 21, transition connection plate, 22, radial groove, 23, simply supported beam leaf spring, 24, fastening screw, 25, washer, 26, sinker, 27, vibration absorption frequency adjustment device, 28, inner clamping plate, 29, outer clamping plate, 30, connecting screw, 31, top tightening screw, 32, fastening bolt, 33, threaded hole. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0033] like Figures 1 to 6The figure shows an embodiment of a vibration-resistant reinforcement structure located between a main engine room and an oil separator room of the present invention, comprising a longitudinal vibration-resistant wall 3 arranged between the main engine room 1 and the oil separator room 2 of the ship, wherein the longitudinal vibration-resistant wall 3 is used to install an auxiliary vibration-resistant support 10 connected to the main engine in the main engine room 1 of the ship, and the longitudinal vibration-resistant wall 3 comprises an upper wall 4 and a lower wall 5 which are integrally connected, wherein the upper end of the upper wall 4 is connected to the upper deck 6, and the lower end of the lower wall 5 is connected to the lower deck 7, and the lower wall 5 is a plurality of piers 8 arranged at intervals in the longitudinal direction, and a waist-shaped hole 9 is provided in the middle of each of the piers 8 for personnel to pass through in the longitudinal direction of the ship; a bridge hole 15 as a transverse passage is formed between the two adjacent piers 8, and the waist-shaped holes 9 of each of the piers 8 form a longitudinal passage 11 in the longitudinal direction.

[0034] Preferably, the longitudinal anti-vibration wall 3 includes a pair of longitudinal wall panels 12, a horizontal connecting plate 13 arranged between the pair of longitudinal wall panels 12, and a number of transverse ribs 14 erected in the up and down directions between the pair of longitudinal wall panels 12 and arranged in a cross shape with the horizontal connecting plate 13; the portion of the longitudinal anti-vibration wall 3 located above the horizontal connecting plate 13 is the upper wall 4, and the portion of the longitudinal anti-vibration wall 3 located below the horizontal connecting plate 13 is the lower wall 5; an inverted U-shaped hole serving as the bridge hole 15 is opened on the longitudinal wall panel 12 located on the lower wall 5, and the waist-shaped hole 9 serving as the longitudinal channel 11 is opened on the transverse rib 14 located on the lower wall 5.

[0035] Preferably, welding construction holes 16 for convenient welding are opened on the longitudinal wall panels 12 located on the upper wall section 4, and welding construction holes 16 for convenient welding are opened on the transverse rib panels 14 located on the upper wall section 4.

[0036] In this embodiment, longitudinal bulkheads 17 for separating the main engine room 1 and the oil separator room 2 are respectively connected to the front and rear ends of the longitudinal anti-vibration wall 3, and the longitudinal bulkheads 17 are connected to the end of the longitudinal anti-vibration wall 3 on the side of the oil separator room 2.

[0037] In this embodiment, a transverse pedestrian hole 18 is opened on the longitudinal bulkhead 17 .

[0038] In this embodiment, one end of the auxiliary anti-vibration support 10 is connected to the main machine, and the other end of the auxiliary anti-vibration support 10 is connected to a portion between the upper wall 4 and the lower wall 5 of the longitudinal anti-vibration wall 3 .

[0039] As a further improvement of the present embodiment, a vibration absorbing device 19 is further provided on the outer wall surface of the longitudinal wall panel 12 at the cross-shaped intersection of the horizontal connecting plate 13 and the transverse rib plate 14; the vibration absorbing device 19 comprises a cross-shaped vibration absorbing plate 20 and a transition connecting plate 21 connected to the cross-shaped vibration absorbing plate 20; a pair of radial grooves 22 are respectively provided on the cross-shaped vibration absorbing plate 20 and at each crosshead position of the cross-shaped vibration absorbing plate 20, and a plate body portion located between the pair of radial grooves 22 forms a simply supported beam type leaf spring 23, and a threaded hole 33 is provided on the simply supported beam type leaf spring 23, the cross-shaped vibration absorbing plate 20 is fixedly connected to the longitudinal wall panel 12, and the transition connecting plate 21 is fixed to the simply supported beam type leaf spring 23 of the cross-shaped vibration absorbing plate 20 by a fastening screw 24 connected to the threaded hole 33.

[0040] Preferably, the cross-shaped vibration absorbing plate 20 is fixedly connected to the longitudinal wall panel 12 by fastening bolts 32 .

[0041] In this embodiment, a recessed groove 26 is provided on the back of each crosshead position of the cross-shaped vibration absorbing plate 20, and the simply supported beam leaf spring 23 and the radial groove 22 are arranged within the area of ​​the recessed groove 26, so that the back plane of the simply supported beam leaf spring 23 and the longitudinal wall panel 12 do not contact each other.

[0042] In this embodiment, a washer 25 is provided at the connection between the fastening screw 24 of the transition connection plate 21 and the cross-shaped vibration absorbing plate 20 so that a non-contact gap is formed between the transition connection plate 21 and the cross-shaped vibration absorbing plate 20 .

[0043] As a further improvement of this embodiment, the vibration absorbing device 19 also includes a vibration absorbing frequency adjusting device 27, which includes an inner clamping plate 28 radially movable in the sinking groove 26, and an outer clamping plate 29 arranged on the front side of the cross-shaped vibration absorbing plate 20 and located at a position corresponding to the inner clamping plate 28. The inner clamping plate 28 and the outer clamping plate 29 are clamped and fixed on the cross-shaped vibration absorbing plate 20 by connecting screws 30 inserted into the radial groove 22, and a tightening screw 31 for supporting the simply supported beam type leaf spring 23 is arranged on the outer clamping plate 29.

[0044] The working principle of the vibration absorption frequency adjustment device 27 is: by adjusting the radial position of a pair of clamping plates (including an outer clamping plate 29 and an inner clamping plate 28), the length between the two end fixed point positions of the simply supported beam type leaf spring 23 can be changed, thereby changing the rigidity and vibration absorption frequency of the simply supported beam type leaf spring 23.

[0045] Preferably, the tightening screw 31 is also provided with a locking nut for preventing loosening.

[0046] Preferably, a plurality of threaded connection holes may be provided on the transition connection plate 21 to facilitate the installation and fixation of the auxiliary anti-vibration support 10 .

[0047] The method of using the vibration absorbing device 19 is as follows: after the main engine in the main engine room 1 of the ship is installed, the auxiliary anti-vibration support 10 is connected between the transition connection plate 21 of the vibration absorbing device 19 and the main engine, the main engine is started for testing, and the vibration of the main engine is measured using a vibration meter. By adjusting the radial position of a pair of clamping plates (four in total) on the vibration absorbing device 19, the vibration of the main engine is minimized. After the debugging is completed, the outer clamping plate 29 is fixed by spot welding.

[0048] Preferably, each bolt and screw can be reinforced with a conventional anti-loosening structure.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vibration-resistant reinforcement structure located between the main engine room and the oil separator room, characterized in that: It includes a longitudinal vibration-proof wall arranged between the main engine room of the ship and the oil separator room, the longitudinal vibration-proof wall is used to install the auxiliary vibration-proof support connected to the main engine in the main engine room of the ship, the longitudinal vibration-proof wall includes an upper wall section and a lower wall section which are integrally connected, the upper end of the upper wall section is connected to the upper deck, the lower end of the lower wall section is connected to the lower deck, the lower wall section is a plurality of bridge piers arranged at intervals along the longitudinal direction, and a waist-shaped hole is opened in the middle of each of the bridge piers for personnel to pass through along the longitudinal direction of the ship; a bridge hole as a transverse passage is formed between two adjacent bridge piers, and the waist-shaped holes of each of the bridge piers form a longitudinal passage along the longitudinal direction; the longitudinal vibration-proof wall includes a pair of longitudinal wall panels, a horizontal connecting plate arranged between the pair of longitudinal wall panels, and a plurality of transverse ribs erected in the up-down direction between the pair of longitudinal wall panels and arranged in a cross shape with the horizontal connecting plate; the portion of the longitudinal vibration-proof wall located above the horizontal connecting plate is the upper wall section, the The portion of the longitudinal anti-vibration wall located below the horizontal connecting plate is the lower wall section; an inverted U-shaped hole serving as the bridge hole is opened on the longitudinal wall panel located in the lower wall section, and a waist-shaped hole serving as the longitudinal channel is opened on the transverse rib plate located in the lower wall section; a vibration absorbing device is also provided on the outer wall surface of the longitudinal wall panel near the cross-shaped intersection of the horizontal connecting plate and the transverse rib plate; the vibration absorbing device comprises a cross-shaped vibration absorbing plate and a transition connecting plate connecting the cross-shaped vibration absorbing plate; a pair of radial grooves are respectively opened on the cross-shaped vibration absorbing plate and at each crosshead position of the cross-shaped vibration absorbing plate, and the plate body portion located between the pair of radial grooves forms a simply supported beam leaf spring, a threaded hole is provided on the simply supported beam leaf spring, the cross-shaped vibration absorbing plate is fixedly connected to the longitudinal wall panel, and the transition connecting plate is fixed to the simply supported beam leaf spring of the cross-shaped vibration absorbing plate by a fastening screw connected to the threaded hole.

2. The vibration-resistant reinforcement structure between the main engine room and the oil separator room according to claim 1, characterized in that: The longitudinal wall panels located at the upper wall section are provided with welding construction holes for facilitating welding, and the transverse rib panels located at the upper wall section are provided with welding construction holes for facilitating welding.

3. The vibration-resistant reinforcement structure between the main engine room and the oil separator room according to claim 1, characterized in that: A longitudinal bulkhead for separating the main engine room and the oil separator is connected to the front and rear ends of the longitudinal anti-vibration wall respectively. The longitudinal bulkhead is connected to the end of the longitudinal anti-vibration wall on the side of the oil separator room.

4. The vibration-resistant reinforcement structure between the main engine room and the oil separator room according to claim 3 is characterized in that: A transverse pedestrian hole is provided on the longitudinal bulkhead.

5. The vibration-resistant reinforcement structure between the main engine room and the oil separator room according to claim 1, characterized in that: One end of the auxiliary anti-vibration support is connected to the main machine, and the other end of the auxiliary anti-vibration support is connected to the portion between the upper wall section and the lower wall section of the longitudinal anti-vibration wall.

6. The vibration-resistant reinforcement structure between the main engine room and the oil separator room according to claim 1, characterized in that: A recessed groove is arranged on the back of each crosshead position of the cross-shaped vibration absorbing plate, and the simply supported beam leaf spring and the radial groove are arranged within the recessed groove area, so that the back plane of the simply supported beam leaf spring and the longitudinal wall panel do not contact each other.

7. The vibration-resistant reinforcement structure between the main engine room and the oil separator room according to claim 1, characterized in that: A washer is provided at the fastening screw connection between the transition connection plate and the cross-shaped vibration absorbing plate so that a gap that does not contact each other is formed between the transition connection plate and the cross-shaped vibration absorbing plate.

8. The vibration-resistant reinforcement structure between the main engine room and the oil separator room according to claim 6, characterized in that: The vibration absorbing device also includes a vibration absorbing frequency adjusting device, which includes an inner clamping plate radially movable in the sinking groove, an outer clamping plate arranged on the front side of the cross-shaped vibration absorbing plate and located at a position corresponding to the inner clamping plate, the inner clamping plate and the outer clamping plate are clamped and fixed on the cross-shaped vibration absorbing plate by connecting screws inserted into the radial grooves, and a tightening screw for supporting the simply supported beam type leaf spring is arranged on the outer clamping plate.

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