CN109278972B - Elastic vibration isolation structure of rain-proof cap of ship exhaust pipe - Google Patents
Elastic vibration isolation structure of rain-proof cap of ship exhaust pipe Download PDFInfo
- Publication number
- CN109278972B CN109278972B CN201811000041.5A CN201811000041A CN109278972B CN 109278972 B CN109278972 B CN 109278972B CN 201811000041 A CN201811000041 A CN 201811000041A CN 109278972 B CN109278972 B CN 109278972B
- Authority
- CN
- China
- Prior art keywords
- rain
- elastic vibration
- exhaust pipe
- supporting bolt
- isolation structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 15
- 238000013016 damping Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/32—Arrangements of propulsion power-unit exhaust uptakes; Funnels peculiar to vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
Abstract
The utility model provides a rain-proof cap elastic vibration isolation structure of boats and ships blast pipe, including vertical setting at the support bolt between rain-proof cap and enclose the water circle, support bolt's one end is connected on the deck, the cover is equipped with the elastic damping piece that can slide relatively it on the support bolt, be provided with lock nut below the elastic damping piece and on support bolt, and the cover is equipped with the pressure spring between lock nut and elastic damping piece and on support bolt, pressure spring one end supports on elastic damping piece terminal surface, supports the other terminal surface of elastic damping piece and tightly on support bolt's bolt head terminal surface, the pressure spring other end supports on the lock nut terminal surface. The elastic vibration isolation structure of the rain hat of the ship exhaust pipe can effectively prevent the exhaust pipe from being damaged due to thermal expansion, and can effectively reduce vibration and noise.
Description
Technical Field
The invention relates to an elastic vibration isolation structure of a rain cap of a ship exhaust pipe.
Background
When the main engine and the auxiliary engine on the ship work, exhaust gas is generated, and the exhaust gas is discharged to the atmosphere from the exhaust pipe on the ship, and the tail end of the exhaust pipe is easy to generate thermal expansion deformation due to high temperature of the exhaust gas generated by the diesel engine, so that the exhaust pipe is damaged, and the work safety of the exhaust pipe cannot be ensured; when the diesel engine generates waste gas, the formed waste gas has larger impact force, and the sea has strong wind, so that the ship swings, and the impact force of the waste gas and the wind force can easily cause the rain cap at the tail end of the exhaust pipe to collide with the water-enclosing ring on the deck, so that larger vibration and noise are generated, and the comfortableness of the driving, living and other areas is seriously influenced. In order to solve the above problems, it is generally necessary to fix the end of the exhaust pipe, however, the exhaust pipe is a linear steel object, and the expansion direction after heating is axial, if the end of the exhaust pipe is fixed, the axial freedom degree of the exhaust pipe is limited, and the axial expansion length of the exhaust pipe is released by bending the exhaust pipe, so that the bending deformation of the exhaust pipe is caused, and the normal operation of the exhaust pipe is further affected.
Disclosure of Invention
The invention aims to provide the elastic vibration isolation structure of the rain-proof cap of the ship exhaust pipe, which can effectively prevent the exhaust pipe from being damaged due to thermal expansion and can effectively reduce vibration and noise.
The invention relates to an elastic vibration isolation structure of a rain cap of a ship exhaust pipe, which comprises a supporting bolt vertically arranged between the rain cap and a water enclosing ring, wherein one end of the supporting bolt is connected to a deck, an elastic vibration damping block capable of sliding relative to the supporting bolt is sleeved on the supporting bolt, a locking nut is arranged below the elastic vibration damping block and on the supporting bolt, a pressure spring is sleeved between the locking nut and the elastic vibration damping block and on the supporting bolt, one end of the pressure spring is propped against the end face of the elastic vibration damping block, the other end of the elastic vibration damping block is propped against the end face of a bolt head of the supporting bolt, and the other end of the pressure spring is propped against the end face of the locking nut.
According to the elastic vibration isolation structure of the rain hat of the ship exhaust pipe, when the rain hat is subjected to large radial force, the rain hat moves radially to impact the elastic vibration reduction block, and the water enclosing ring is separated from the rain hat through the elastic vibration reduction block, so that the rain hat cannot directly collide with the water enclosing ring, the elastic vibration reduction block has elasticity, the acting force of the impact of the rain hat can be effectively absorbed, vibration and noise caused by the impact are avoided, and the comfortableness of areas such as driving and living on a ship is effectively improved; the elastic damping block can slide relative to the supporting bolt, and meanwhile, the pressure spring tightly pushes the elastic damping block against the end face of the bolt head of the supporting bolt, so that when the elastic damping block receives the radial force of the rain cap, the elastic damping block moves vertically slightly to squeeze the pressure spring, the impact kinetic energy of the rain cap can be absorbed to a greater extent, the aim of flexibly restraining the radial relative freedom degree of the rain cap and the water surrounding ring is achieved through the cooperation of the elastic damping block and the pressure spring, and noise and vibration generated by direct impact of the elastic damping block and the pressure spring are avoided; because the elastic vibration isolation structure is not directly connected with the rain hat and the water surrounding ring, only the radial movement of the rain hat is restrained, and no restraint exists on the axial freedom degree of the rain hat and the water surrounding ring, the axial thermal expansion deformation of the outlet end of the exhaust pipe can be fully released, the axial thermal expansion of the exhaust pipe is prevented from being released through the bending of the pipeline, the pipeline is effectively prevented from being damaged, and the working safety of the exhaust pipe is ensured; in addition, the compression degree of the pressure spring can be adjusted by adjusting the locking nut, so that the sufficient supporting strength of the elastic damping block is provided, the deformation force of the elastic damping block caused by the impact of the rain hat is compensated, the elastic damping block is prevented from being damaged due to long-term impact deformation, and the service life of the elastic damping block is prolonged; in addition, the supporting bolt is adopted as the supporting component, so that the processing of the supporting component is avoided, and the cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a top view of the elastomeric damper block.
Detailed Description
The utility model provides a boats and ships blast pipe rain-proof cap elastic vibration isolation structure, as shown in fig. 1, including vertical setting up the supporting bolt 3 between rain-proof cap 1 and enclose water circle 2, the one end of supporting bolt 3 is connected on deck 4, the cover is equipped with the elastic damping piece 5 that can slide rather than it on the supporting bolt 3, be provided with lock nut 6 on supporting bolt 3 in elastic damping piece 5 below, and the cover is equipped with pressure spring 7 on supporting bolt 3 between lock nut 6 and elastic damping piece 5, pressure spring 7 one end supports on elastic damping piece 5 terminal surfaces, support the other terminal surface of elastic damping piece 5 on the bolt head terminal surface of supporting bolt 3, the pressure spring 7 other end supports on lock nut 6 terminal surface. The elastic vibration damper 5 is made of rubber.
As shown in fig. 2, the side wall of the elastic vibration reduction block 5 is provided with a vertical chamfer 8, and because the rain cap 1 is annular, the side wall of the elastic vibration reduction block 5 facing the rain cap 1 is provided with the chamfer 8, so that the elastic vibration reduction block 5 can be contacted with the side wall of the rain cap 1 more closely.
A flat washer 9 is arranged between the elastic vibration reduction block 5 and the bolt head of the supporting bolt 3 and between the elastic vibration reduction block 5 and the pressure spring 7 respectively, and the contact area between the elastic vibration reduction block 5 and the end face of the pressure spring 7 and the contact area between the end face of the bolt head of the supporting bolt 3 are increased by arranging the flat washer 9, so that the pressure spring 7 provides more uniform supporting force for the elastic vibration reduction block 5, and the elastic vibration reduction block 5 is prevented from being damaged due to stress concentration caused by small contact area.
The base nuts 10 are fixedly connected to the deck 4, the bottoms of the supporting bolts 3 are screwed into the base nuts 10, the supporting bolts 3 are connected to the deck 4, and the supporting bolts 3 can be conveniently disassembled and assembled by arranging the base nuts 10 to be connected.
Claims (5)
1. A rain-proof cap elastic vibration isolation structure of boats and ships blast pipe, its characterized in that: including vertical setting up supporting bolt (3) between rain-proof cap (1) and enclose water ring (2), the one end of supporting bolt (3) is connected on deck (4), the cover is equipped with on supporting bolt (3) can be relative its gliding elasticity damping piece (5), be provided with lock nut (6) on supporting bolt (3) below elasticity damping piece (5), and the cover is equipped with pressure spring (7) on supporting bolt (3) between lock nut (6) and elasticity damping piece (5), pressure spring (7) one end supports on elasticity damping piece (5) terminal surface, support the other terminal surface of elasticity damping piece (5) on the bolt head terminal surface of supporting bolt (3), the pressure spring (7) other end supports on lock nut (6) terminal surface.
2. The elastic vibration isolation structure of a rain cap for a marine exhaust pipe according to claim 1, wherein: the side wall of the elastic vibration reduction block (5) is provided with a vertical chamfer (8).
3. The elastic vibration isolation structure of a rain cap for a marine exhaust pipe according to claim 1 or 2, wherein: flat washers (9) are respectively arranged between the elastic vibration reduction block (5) and the bolt head of the supporting bolt (3) and between the elastic vibration reduction block (5) and the pressure spring (7).
4. The elastic vibration isolation structure of a rain cap for a marine exhaust pipe according to claim 1 or 2, wherein: a base nut (10) is fixedly connected to the deck (4), the bottom of the supporting bolt (3) is screwed in the base nut (10), and the supporting bolt (3) is connected to the deck (4).
5. A marine exhaust pipe rain cap elastic vibration isolation structure according to claim 3, wherein: a base nut (10) is fixedly connected to the deck (4), the bottom of the supporting bolt (3) is screwed in the base nut (10), and the supporting bolt (3) is connected to the deck (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000041.5A CN109278972B (en) | 2018-08-30 | 2018-08-30 | Elastic vibration isolation structure of rain-proof cap of ship exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000041.5A CN109278972B (en) | 2018-08-30 | 2018-08-30 | Elastic vibration isolation structure of rain-proof cap of ship exhaust pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109278972A CN109278972A (en) | 2019-01-29 |
| CN109278972B true CN109278972B (en) | 2024-02-23 |
Family
ID=65183132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811000041.5A Active CN109278972B (en) | 2018-08-30 | 2018-08-30 | Elastic vibration isolation structure of rain-proof cap of ship exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109278972B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO980461A1 (en) * | 1998-05-29 | 1999-11-29 | Iveco Fiat | ELASTIC SUPPORT DEVICE FOR A VEHICLE EXHAUST PIPE |
| JP2000204948A (en) * | 1999-01-19 | 2000-07-25 | Hitachi Constr Mach Co Ltd | Rain cap device for exhaust pipe for engine |
| CN104727917A (en) * | 2015-03-04 | 2015-06-24 | 芜湖新联造船有限公司 | Engine exhaust pipe anti-rainwater device for ship |
| CN115336415B (en) * | 2011-07-21 | 2015-12-23 | 中国人民解放军海军工程大学 | Rigidity-adjustable vibration-damping thrust bearing for ship |
| CN204921812U (en) * | 2015-07-17 | 2015-12-30 | 河南柴油机重工有限责任公司 | Rubber vibration isolator for generating set with stop device |
| CN105836091A (en) * | 2015-01-17 | 2016-08-10 | 广新海事重工股份有限公司 | Shock-absorbing and rainproof device for exhaust pipe |
| CN105840729A (en) * | 2016-04-11 | 2016-08-10 | 江苏科技大学 | Shafting bearing vibration-reducing base for ship bulkhead |
| KR20170000420U (en) * | 2015-07-21 | 2017-02-02 | 현대중공업 주식회사 | Exhaust Gas Pipe Support Apparatus of Vessel |
| CN107416167A (en) * | 2017-07-13 | 2017-12-01 | 江苏科技大学 | A kind of marine main engine snubber base |
| CN209112420U (en) * | 2018-08-30 | 2019-07-16 | 广州文冲船厂有限责任公司 | A kind of ship exhaust pipe rain-proof cap flexible type vibration insulation structure |
-
2018
- 2018-08-30 CN CN201811000041.5A patent/CN109278972B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO980461A1 (en) * | 1998-05-29 | 1999-11-29 | Iveco Fiat | ELASTIC SUPPORT DEVICE FOR A VEHICLE EXHAUST PIPE |
| JP2000204948A (en) * | 1999-01-19 | 2000-07-25 | Hitachi Constr Mach Co Ltd | Rain cap device for exhaust pipe for engine |
| CN115336415B (en) * | 2011-07-21 | 2015-12-23 | 中国人民解放军海军工程大学 | Rigidity-adjustable vibration-damping thrust bearing for ship |
| CN105836091A (en) * | 2015-01-17 | 2016-08-10 | 广新海事重工股份有限公司 | Shock-absorbing and rainproof device for exhaust pipe |
| CN104727917A (en) * | 2015-03-04 | 2015-06-24 | 芜湖新联造船有限公司 | Engine exhaust pipe anti-rainwater device for ship |
| CN204921812U (en) * | 2015-07-17 | 2015-12-30 | 河南柴油机重工有限责任公司 | Rubber vibration isolator for generating set with stop device |
| KR20170000420U (en) * | 2015-07-21 | 2017-02-02 | 현대중공업 주식회사 | Exhaust Gas Pipe Support Apparatus of Vessel |
| CN105840729A (en) * | 2016-04-11 | 2016-08-10 | 江苏科技大学 | Shafting bearing vibration-reducing base for ship bulkhead |
| CN107416167A (en) * | 2017-07-13 | 2017-12-01 | 江苏科技大学 | A kind of marine main engine snubber base |
| CN209112420U (en) * | 2018-08-30 | 2019-07-16 | 广州文冲船厂有限责任公司 | A kind of ship exhaust pipe rain-proof cap flexible type vibration insulation structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109278972A (en) | 2019-01-29 |
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