CN107559373B - A kind of stern impulses power attenuating device - Google Patents
A kind of stern impulses power attenuating device Download PDFInfo
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- CN107559373B CN107559373B CN201710670597.4A CN201710670597A CN107559373B CN 107559373 B CN107559373 B CN 107559373B CN 201710670597 A CN201710670597 A CN 201710670597A CN 107559373 B CN107559373 B CN 107559373B
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- cushion dashpot
- connecting rod
- impulses
- top panel
- cavity
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Abstract
The present invention relates to ship damping device technology field, refers specifically to a kind of stern and impulse power attenuating device；Including top panel and lower plate, several buffer gears are connected between the top panel and lower plate, several buffer gears are in array setting spaced reciprocally；The buffer gear includes connecting rod and cushion dashpot, and interior be equipped with of cushion dashpot can be fixedly connected with the piston along movable piston above and below it, connecting rod lower end, and small end and top panel cooperation are in contradict to connect, and buffer spring is equipped between cushion dashpot bottom and lower plate；Structure of the invention is reasonable; the elasticity of spring, the mobility of liquid and tumbler self-reparability are combined; the power that impulses energy is converted into the kinetic energy of structure; the gravitational potential of brake fluid and the elastic potential energy of spring; response of the water flow complex environment pontoon structure to the power that impulses is reduced, lower panel and its behind structure can be effectively protected.
Description
Technical field
The present invention relates to ship damping device technology field, refers specifically to a kind of stern and impulse power attenuating device.
Background technique
When ship navigates by water in water, due to the complexity of water flow, when propeller works are in the non-uniform flow field of wake flow,
Fluctuation pressure is generated by pulsation source inducing peripheral flow field of propeller, causes the Ship Structure above propeller for vessels by week
The effect of phase property impulse load, so that structure is easily injured herein, can lead to the severe shocks of hull tail portion, to crewman when serious
Physically and mentally healthy and Ship Structure safety generates biggish threat.Traditional shock-damping structure be difficult to meet it is this periodically,
The operating condition that flow direction is complicated, load is different, therefore, existing hull cushion technique has yet to be improved and developed.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of structurally reasonable, by the bullet of spring
The stern that property, the mobility of liquid and tumbler self-reparability combine impulses power attenuating device, can pass through connecting rod
The movement of piston, the fluid change of brake fluid and the compression of flexure spring between cavity, the power that will impulse energy are converted into structure
Kinetic energy, the gravitational potential of brake fluid and the elastic potential energy of spring impulse power to the dynamic response of structure to reduce, can be effective
Protect lower panel and its behind structure.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of stern of the present invention impulses power attenuating device, including top panel and lower plate, the top panel and under
Several buffer gears are connected between bottom plate, several buffer gears are in array setting spaced reciprocally；The buffer gear includes
Connecting rod and cushion dashpot, interior be equipped with of cushion dashpot can be fixedly connected with the piston along movable piston above and below it, connecting rod lower end, small end
With top panel cooperation in connection is contradicted, buffer spring is equipped between cushion dashpot bottom and lower plate.
According to above scheme, partition panel is equipped in the cushion dashpot, the inner cavity of cushion dashpot is divided into left and right two by partition panel
A independent cavity, the partition panel bottom are equipped with the fluid apertures of walking of the cavity of the connection left and right sides, are filled with braking in cushion dashpot
Liquid offers the venthole of the cavity in connection left side on the side wall of cushion dashpot；The cushion dashpot upper end is equipped with guide cylinder, guide cylinder
Lower port be connected to the cavity on right side, connecting rod and piston can be up and down along guide cylinder.
According to above scheme, the cushion dashpot is vertically arranged, and venthole is in the ullage of brake fluid in cushion dashpot, is walked
Fluid apertures is in below the liquid level of brake fluid in cushion dashpot.
According to above scheme, the venthole is equipped with the gas permeable biofilm that can separate brake fluid.
According to above scheme, the spherical structure setting in the bottom of the cushion dashpot.
According to above scheme, the bottom surface of the top panel is equipped with several and one-to-one arc groove of buffer gear,
The upper end of connecting rod, which is supported, to be set in arc groove, and the spherical structure setting in upper end of connecting rod.
The invention has the following beneficial effects: structure of the invention is reasonable, certainly by the elasticity of spring, the mobility of liquid and tumbler
Restorative to combine, the power that impulses energy is converted into the kinetic energy of structure, the gravitational potential of brake fluid and the elastic potential of spring
Can, response of the water flow complex environment pontoon structure to the power that impulses is reduced, lower panel and its behind structure can be effectively protected.
Detailed description of the invention
Fig. 1 is the section enlarged structure schematic diagram of breviary part of the invention.
In figure:
1, top panel；2, lower plate；3, cushion dashpot；4, connecting rod；11, arc groove；21, buffer spring；31, partition panel；
32, cavity；33, fluid apertures is walked；34, brake fluid；35, venthole；36, guide cylinder；41, piston.
Specific embodiment
Technical solution of the present invention is illustrated with embodiment with reference to the accompanying drawing.
The power attenuating device as shown in Figure 1, a kind of stern of the present invention impulses, including top panel 1 and lower plate 2, institute
It states and is connected with several buffer gears between top panel 1 and lower plate 2, several buffer gears are in array setting spaced reciprocally；Institute
Stating buffer gear includes connecting rod 4 and cushion dashpot 3, be equipped in cushion dashpot 3 can along its movable piston 41 up and down, 4 lower end of connecting rod with
Piston 41 is fixedly connected, and 4 upper end of connecting rod and the cooperation of top panel 1 are equipped between 3 bottom of cushion dashpot and lower plate 2 in connection is contradicted
Buffer spring 21；The shock loading that the top panel 1 is subject to passes through the movement of connecting rod 4 and piston 41, changes the inner cavity of cushion dashpot 3
Volume realizes the transformation of kinetic energy and pressure, and part shock loading is changed into elastic potential energy by buffer spring 21 by cushion dashpot 3, from
And reduce the impact and vibration to lower plate 2 and the rear part structure；The both ends connection cushion dashpot 3 of the buffer spring 2 is under
Bottom plate 2 changes self-view, passes through the elasticity of buffer spring 21 to make cushion dashpot 3 under the shock loading in non-vertical direction
Power eliminates shock loading and restores form, so as to meet the damping requirement under water body environment under complicated impact force, adequately protects
Hull structural strength and stability.
Partition panel 31 is equipped in the cushion dashpot 3, the inner cavity of cushion dashpot 3 is divided into left and right two independent by partition panel 31
Cavity 32,31 bottom of partition panel walk fluid apertures 33 equipped with connection left and right two cavitys 32, are filled with brake fluid in cushion dashpot 3
34, the venthole 35 of the cavity 32 in connection left side is offered on the side wall of cushion dashpot 3；3 upper end of cushion dashpot is equipped with guide cylinder
36, the lower port of guide cylinder 36 is connected to the cavity 32 on right side, and connecting rod 4 and piston 41 can be up and down along guide cylinder 36；It is described
Connecting rod 4 and piston 41 are acted along guide cylinder 36 can be changed 3 cavity volume of cushion dashpot, when 1 pressure-bearing piston 41 of top panel is along guide cylinder
36 downlinks, brake fluid 34 in the cavity 32 on right side enter the cavity 32 in left side, pressure along the cavity 32 in left side along fluid apertures 33 is walked
Increase squeezes out air from venthole 35, eliminates impact force by the transformation of mechanical energy and pressure；After impact force is eliminated, left side
Cavity 32 in liquid level and pressure be above the cavity 32 on right side, cushion dashpot 3 restores perpendicular first under the action of buffer spring 2
Straight state, the brake fluid 34 under gravity flow back into the cavity 32 on right side from the cavity 32 in left side, and then push on piston 41
It rises and restPoses.
The cushion dashpot 3 is vertically arranged, and venthole 35 is in the ullage of brake fluid 34 in cushion dashpot 3, walks fluid apertures 33
In cushion dashpot 3 below the liquid level of brake fluid 34；The venthole 35 can be pulled open and 34 liquid level of brake fluid by extended structure
Between drop improve the bearing strength of cushion dashpot 3 to play the liquid viscosity of brake fluid 34.
The venthole 35 is equipped with the gas permeable biofilm that can separate brake fluid 34, and currently preferred venthole 35 is arranged
Gas permeable biofilm be avoided that brake fluid 34 is flowed out from venthole 35, set by the volume ratio of the cavity 32 of left and right sides, can
Realize the limit control of 41 stroke of piston.
The spherical structure setting in bottom of the cushion dashpot 3, the whole of cushion dashpot 3 use symmetrical structure all around, delay
The bottom for rushing cylinder 3 is greater than 36 section of guide cylinder to constitute tumbler structure, makes it can be in buffer spring 21 after being impacted
Effect is lower can Rapid reset.
The bottom surface of the top panel 1 is equipped with several and one-to-one arc groove 11 of buffer gear, the upper end of connecting rod 4
To being set in arc groove 11, and the spherical structure setting in upper end of connecting rod 4, arc groove 11 and 4 upper end mating spherical surfaces of connecting rod,
To make top panel 1 and connecting rod 4 in being flexibly connected, and when the vertical angle of cushion dashpot 3 changes, 4 upper end of connecting rod will not be with
Top panel 1 is displaced, and further decreases the complexity of structure.
The above description is only a preferred embodiment of the present invention, thus it is all according to the configuration described in the scope of the patent application of the present invention,
The equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (5)
- The power attenuating device 1. a kind of stern impulses, including top panel (1) and lower plate (2), it is characterised in that: the top panel (1) several buffer gears are connected between lower plate (2), several buffer gears are in array setting spaced reciprocally；It is described slow Punch mechanism includes connecting rod (4) and cushion dashpot (3), and being equipped in cushion dashpot (3) can be along movable piston (41) above and below it, connecting rod (4) Lower end is fixedly connected with piston (41), and connecting rod (4) upper end and top panel (1) cooperation are in connection is contradicted, and cushion dashpot (3) bottom is under Buffer spring (21) are equipped between bottom plate (2)；Partition panel (31) are equipped in the cushion dashpot (3), the inner cavity of cushion dashpot (3) is divided into left and right two solely by partition panel (31) Vertical cavity (32), partition panel (31) bottom are equipped with walking fluid apertures (33) for connection left and right sides cavity (32), cushion dashpot (3) It is interior to be filled with brake fluid (34), the venthole (35) of the cavity (32) in connection left side is offered on the side wall of cushion dashpot (3)；It is described Cushion dashpot (3) upper end is equipped with guide cylinder (36), and the lower port of guide cylinder (36) is connected to the cavity (32) on right side, connecting rod (4) and Piston (41) can be up and down along guide cylinder (36).
- The power attenuating device 2. stern according to claim 1 impulses, it is characterised in that: the cushion dashpot (3) is vertically arranged, Venthole (35) is in the ullage of cushion dashpot (3) interior brake fluid (34), walks fluid apertures (33) and is in cushion dashpot (3) interior brake fluid (34) below liquid level.
- The power attenuating device 3. stern according to claim 2 impulses, it is characterised in that: the venthole (35) is equipped with can Separate the gas permeable biofilm of brake fluid (34).
- The power attenuating device 4. stern according to claim 1 impulses, it is characterised in that: the bottom of the cushion dashpot (3) is in Spherical structure setting.
- The power attenuating device 5. stern according to claim 1 impulses, it is characterised in that: on the bottom surface of the top panel (1) Equipped with several and one-to-one arc groove of buffer gear (11), the upper end of connecting rod (4), which is supported, to be set in arc groove (11), and The spherical structure setting in upper end of connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670597.4A CN107559373B (en) | 2017-08-08 | 2017-08-08 | A kind of stern impulses power attenuating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670597.4A CN107559373B (en) | 2017-08-08 | 2017-08-08 | A kind of stern impulses power attenuating device |
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| Publication Number | Publication Date |
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| CN107559373A CN107559373A (en) | 2018-01-09 |
| CN107559373B true CN107559373B (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710670597.4A Active CN107559373B (en) | 2017-08-08 | 2017-08-08 | A kind of stern impulses power attenuating device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108657376B (en) * | 2018-04-25 | 2019-10-01 | 武汉理工大学 | A kind of river-sea through ship cabin seat damping device |
| CN108657380A (en) * | 2018-06-28 | 2018-10-16 | 武汉理工大学 | A kind of large size seagoing vessel bed stabilizer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1982004092A1 (en) * | 1981-05-18 | 1982-11-25 | Jun Toyama | A vibration-damping device |
| CN101487510B (en) * | 2009-02-24 | 2012-04-04 | 江苏大学 | Multidimensional vibration-isolating apparatus |
| KR101166627B1 (en) * | 2010-03-25 | 2012-07-18 | 경상대학교산학협력단 | Apparatus of reducing pitching and rolling motion for marine floating structure |
| FR2996892B1 (en) * | 2012-10-16 | 2015-11-06 | Technip France | DAMPING ASSEMBLY FOR AT LEAST PARTLY INSTALLED INSTALLATION IN A WATER EXTEND, ASSOCIATED INSTALLATION AND METHOD |
| CN104389946B (en) * | 2014-09-12 | 2017-02-22 | 河南工业职业技术学院 | Active hydraulic damping device with variable cavity |
| CN206111933U (en) * | 2016-09-12 | 2017-04-19 | 马建群 | Parallelly connected 6 -degree of freedom shock attenuation platform |
| CN206293086U (en) * | 2016-10-30 | 2017-06-30 | 北京工业大学 | A kind of advanced manufacturing platform of the laser for simulating ship vibration environment |
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Effective date of registration: 20220725 Address after: 430073 room 1105, floor 11, new plant 3, new energy R & D base, Wuhan University of science and Technology Science Park, No. 36, Tangxun Hubei Road, East Lake New Technology Development Zone, Wuhan, Hubei Province Patentee after: Wuhan Lihang intelligent ship Technology Co.,Ltd. Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee before: WUHAN University OF TECHNOLOGY |
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