CN112695824B - Self-cleaning type mud suction inlet sealing structure of trailing suction hopper dredger - Google Patents
Self-cleaning type mud suction inlet sealing structure of trailing suction hopper dredger Download PDFInfo
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- CN112695824B CN112695824B CN202011474048.8A CN202011474048A CN112695824B CN 112695824 B CN112695824 B CN 112695824B CN 202011474048 A CN202011474048 A CN 202011474048A CN 112695824 B CN112695824 B CN 112695824B
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- rubber
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8833—Floating installations
- E02F3/885—Floating installations self propelled, e.g. ship
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
- E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention relates to a self-cleaning type mud suction inlet sealing structure of a trailing suction hopper dredger, which comprises a special-shaped sealing main body part and a sealing accessory with a self-cleaning function, wherein the sealing accessory with the self-cleaning function is a blade type one-way sealing rubber block. The invention has scientific and reasonable design, increases the resilience of the sealing mechanism through the L-shaped special-shaped rubber block structure, improves the high-pressure impact resistance of the whole sealing mechanism by matching with the high-density rubber positioning block and the high-density rubber block, and simultaneously increases the structures such as the buffer concave hole and the low-density rubber buffer outer lip structure, can release the high-strength pressure of high-pressure slurry on the right-angle gap space between the components, relieves the instant high-pressure impact of high pressure on the sealing element and the rigid structure, effectively avoids the damage of the rubber component, prolongs the service life of the rubber component, and ensures the sealing effect of the rubber component. Because set up one-way rubber blade structure, can realize one-way sealed function, during the use, because inside mud flows in, but can not flow in the drive case for actuating mechanism can the efficient work, avoids a large amount of mud to flow in and causes the damage, has the function of protection drive case simultaneously, realizes the effect of automatically cleaning promptly.
Description
Technical Field
The invention belongs to the technical field of sealing, relates to a ship sealing technology, and particularly relates to a self-cleaning type mud suction inlet sealing structure of a trailing suction hopper dredger.
Background
The cutter suction dredger originated from the United states in the 19 th century, has been developed rapidly by virtue of strong adaptability to soil quality, high efficiency and the like, and has become a main force dredger type in various dredging projects. In recent years, the development trend of the cutter suction dredger to be large and self-propelled is obvious. In the face of more and more large-scale projects and offshore projects, the ultra-large self-propelled cutter suction dredger has strong construction capability, high maneuverability, capability of completely and independently working, capability of quickly self-navigating to a construction site, reduction of loss in the aspects of barge transportation time, cost and the like, and particularly obvious advantages for projects with wide distribution and short construction period.
Before the 21 st century, most of cutter suction dredger in China are small and medium non-self-propelled dredger, the installed power is generally not more than 4000kW, and the technical content has a great difference compared with foreign countries. After the 21 st century, with the rapid development of national economy and the gradual increase of the construction speed of coastal cities in China, the requirements of port maintenance, channel dredging, hydraulic reclamation and the like are continuously increased, and domestic shipbuilding enterprises successively build a large number of self-propelled large cutter suction dredger to meet the requirements of operation environment, cutter cutting force, yield, digging depth, row spacing and the like, so that the requirements of engineering operation are met.
The sealing element at the inlet of the dredge pump of the dredger generally adopts an L-shaped sealing element, and because the contact medium of the dredger is silt slurry, the using environment is severe, the damage form is shown in serious abrasion, tearing of a lip and waist breakage, the service life is generally about 7 days, the dredger depends on import for a long time, the cost is high, the purchase period is long, and the working efficiency is greatly influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the self-cleaning type mud suction inlet sealing structure of the trailing suction hopper dredger, which has scientific and reasonable design and good sealing effect, can effectively resist high impact force and severe trailing suction dredging environment and also has a self-cleaning function.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a self-cleaning type mud suction inlet sealing structure of a trailing suction hopper dredger comprises a special-shaped sealing main body part and a sealing accessory with a self-cleaning function, wherein the sealing accessory with the self-cleaning function is a blade type one-way sealing rubber block.
Moreover, the main structure of the special-shaped sealing main body part is a special-shaped rubber block, the whole special-shaped sealing main body part is of an L-shaped structure and comprises a first vertical block and a second vertical block, the first vertical block is connected with the second vertical block through a wedge-shaped block, and the first vertical block, the second vertical block and the wedge-shaped block are integrally made into a seamless rubber body.
And a buffer concave hole is formed at the joint of the first vertical block and the wedge-shaped block.
And moreover, rubber bulges are integrally formed at the joints of the second vertical blocks and the wedge-shaped blocks, and high-density rubber columns which play a role in strengthening and supporting are axially inserted into grooves formed between the second vertical blocks and the rubber bulges.
And the extension of the wedge-shaped block is integrally provided with a low-density rubber buffer outer lip, and the joint of the inner edge of the wedge-shaped block and the steel component is detachably inserted with a high-density rubber positioning block in a split manner.
The sealing fitting with the self-cleaning function comprises a first transverse structural body, a second longitudinal structural body, a third inclined body and a lower hook outer lip body, wherein the first transverse structural body, the second longitudinal structural body, the third inclined body and the lower hook outer lip body are of a seamless rubber structure which is integrally manufactured.
Moreover, a buffer slot is formed inside the joint of the third inclined body and the outer lip body of the lower hook.
And the inner side of the second longitudinal structure body is movably connected with a unidirectional rubber blade, and the extension of the unidirectional rubber blade is of a step platform structure.
And the extension of the unidirectional rubber blade is provided with an outer step and an inner step, the first transverse structural body, the second longitudinal structural body, the third inclined body and the contact edge of the lower hook outer lip body and the unidirectional rubber blade are clamped between the outer step and the inner step, when the unidirectional rubber blade is closed, the outer step is clamped at the outer side, and the inner step is clamped at the inner side.
The invention has the advantages and positive effects that:
1. according to the invention, the first vertical block, the second vertical block and the wedge-shaped block are integrally made into the seamless rubber body, and the buffer concave hole is formed at the joint of the first vertical block and the wedge-shaped block, so that the torsional damage of a rigid force to the first vertical block can be effectively buffered.
2. According to the invention, the high-density rubber positioning block is detachably inserted in the joint of the inner edge of the wedge-shaped block and the steel component in a split manner, so that the stability of the integral sealing structure in the component can be effectively ensured, and the sealing effect cannot be influenced by damaging the sealing structure due to high-strength impact.
3. The low-density rubber buffer outer lip is integrally manufactured on the extension of the wedge-shaped block, so that high-strength pressure of high-pressure slurry on a right-angle gap space between the components can be released, and instant high-pressure impact of high pressure on a sealing piece and a rigid structure is relieved.
4. According to the invention, the high-density rubber column playing a role in strengthening and supporting is axially inserted and arranged in the groove formed between the second vertical block and the rubber bulge, so that the damage of a rubber component can be effectively avoided, the service life of the rubber component is prolonged, and the sealing effect of the rubber component is ensured.
5. The invention innovatively adds a sealing accessory with a self-cleaning function, the accessory is a blade type one-way sealing rubber block, an outer step and an inner step are manufactured on the outer surface of the accessory, a first transverse structural body, a second longitudinal structural body, a third inclined body and a lower hook outer lip body are clamped between the outer step and the inner step along the contact edge of the one-way rubber blade, when the one-way rubber blade is closed, the outer step is clamped on the outer side, and the inner step is clamped on the inner side, so that the one-way sealing function is realized.
6. The invention has scientific and reasonable design, increases the resilience of the sealing mechanism through the L-shaped special-shaped rubber block structure, improves the high-pressure impact resistance of the whole sealing mechanism by matching with the high-density rubber positioning block and the high-density rubber block, and simultaneously increases the structures such as the buffer concave hole and the low-density rubber buffer outer lip structure, can release the high-strength pressure of high-pressure slurry on the right-angle gap space between the components, relieves the instant high-pressure impact of high pressure on the sealing element and the rigid structure, effectively avoids the damage of the rubber component, prolongs the service life of the rubber component, and ensures the sealing effect of the rubber component. Because set up one-way rubber blade structure, can realize one-way sealed function, during the use, because inside mud flows in, but can not flow in the drive case for actuating mechanism can the efficient work, avoids a large amount of mud to flow in and causes the damage, has the function of protection drive case simultaneously, realizes the effect of automatically cleaning promptly.
Drawings
FIG. 1 is a sectional view of the present invention (assembled state of components);
FIG. 2 is an enlarged view of the self-cleaning seal assembly of FIG. 1;
fig. 3 is a side view of the extension step of the sealing member having a self-cleaning function in fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative only and not limiting, and the scope of the present invention is not limited thereby.
A self-cleaning mud suction inlet sealing structure of a trailing suction hopper dredger is shown in figure 1 and comprises a special-shaped sealing main body part and a sealing accessory 9 with a self-cleaning function, wherein the sealing accessory with the self-cleaning function is a blade type one-way sealing rubber block.
Dysmorphism seals the main part spare, and its major structure is special-shaped rubber piece, wholly is L type structure, including first perpendicular piece 4, second perpendicular piece 10, first perpendicular piece is passed through wedge 7 with the second and is connected, and above-mentioned first perpendicular piece, second perpendicular piece and the seamless rubber body that the wedge was made as an organic whole are made at the junction of first perpendicular piece and wedge and are had buffering shrinkage pool 5, and it has rubber arch 11 to make at the junction of second perpendicular piece and wedge an organic whole the outer lip 8 of low density rubber buffering is made to the epitaxy an organic whole of wedge.
The high-density rubber positioning block 12 is detachably inserted at the joint of the inner edge of the wedge block and the steel component in a split manner.
The groove formed between the second vertical block and the rubber bulge is axially inserted with a high-density rubber column 1 playing a role in strengthening and supporting.
As shown in figure 2, the sealing fitting with the self-cleaning function comprises a first transverse structural body 9-1, a second longitudinal structural body 9-3, a third inclined body 9-4 and a lower hook outer lip body 9-5, wherein the first transverse structural body, the second longitudinal structural body, the third inclined body and the lower hook outer lip body are of a seamless rubber structure which is integrally manufactured, a buffer slot hole 9-6 is manufactured in the connecting part of the third inclined body and the lower hook outer lip body, a one-way rubber blade 9-7 is movably connected to the inner side 9-2 of the second longitudinal structural body, and the extension of the one-way rubber blade is of a step platform structure.
As shown in fig. 3, an outer step 9-8 and an inner step 9-9 are manufactured on the extension of the unidirectional rubber blade, the first transverse structural body, the second longitudinal structural body, the third inclined body and the contact edge of the lower hook outer lip body and the unidirectional rubber blade are clamped between the outer step and the inner step, when the unidirectional rubber blade is closed, the outer step is clamped on the outer side, and the inner step is clamped on the inner side, so that the unidirectional sealing function is realized.
The working principle of the invention is as follows:
when the special-shaped sealing structure is used, all the components are assembled and installed through the pins 3 to form a structure of a slurry suction inlet 2, and the special-shaped sealing structure is additionally installed at the connection position of all the components.
1. The first vertical block, the second vertical block and the wedge-shaped block of the sealing structure are integrally made into a seamless rubber body, the joint of the first vertical block and the wedge-shaped block is provided with the buffer concave hole, and the torsional damage of rigid force to the first vertical block can be effectively buffered.
2. The high-density rubber positioning block is detachably inserted at the split part of the inner edge of the wedge block and the joint of the steel component, so that the stability of the whole sealing structure in the component can be effectively ensured, and the sealing effect cannot be influenced by damaging the sealing structure due to high-strength impact.
3. The low-density rubber buffer outer lip is integrally manufactured on the extension of the wedge-shaped block, so that high-strength pressure of high-pressure slurry on a right-angle gap space 6 between the components can be released, and instantaneous high-pressure impact of high pressure on a sealing piece and a rigid structure is relieved.
4. The rubber column which plays a role in strengthening and supporting is axially inserted into the groove formed between the second vertical block and the rubber protrusion, so that the damage of the rubber component can be effectively avoided, the service life of the rubber component is prolonged, and the sealing effect of the rubber component is guaranteed.
According to the use requirement, the blade type one-way sealing rubber block is matched and used in the mud suction inlet sealing application of the trailing suction hopper dredger.
Because set up one-way rubber blade structure, can realize one-way sealed function, during the use, because inside mud flows in, but can not flow in the drive case for actuating mechanism can the efficient work, avoids a large amount of mud to flow in and causes the damage, has the function of protection drive case simultaneously, realizes the effect of automatically cleaning promptly.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (7)
1. The utility model provides a trailing suction hopper dredger automatically cleaning formula mud sunction inlet seal structure which characterized in that: the sealing accessory with the self-cleaning function is a blade type one-way sealing rubber block and comprises a special-shaped sealing main body part and a sealing accessory with the self-cleaning function, wherein the sealing accessory with the self-cleaning function comprises a first transverse structural body, a second longitudinal structural body, a third inclined body and a lower hook outer lip body, the first transverse structural body, the second longitudinal structural body, the third inclined body and the lower hook outer lip body are of a seamless rubber structure integrally manufactured, a one-way rubber blade is movably connected to the inner side of the second longitudinal structural body, and the extension of the one-way rubber blade is of a step platform structure.
2. The self-cleaning mud suction inlet sealing structure of the trailing suction hopper dredger according to claim 1, characterized in that: the special-shaped sealing main body part is characterized in that the main structure of the special-shaped sealing main body part is a special-shaped rubber block, the whole special-shaped sealing main body part is of an L-shaped structure and comprises a first vertical block and a second vertical block, the first vertical block is connected with the second vertical block through a wedge-shaped block, and the first vertical block, the second vertical block and the wedge-shaped block are integrally made into a seamless rubber body.
3. The self-cleaning mud suction inlet sealing structure of the trailing suction hopper dredger as claimed in claim 2, wherein: a buffer concave hole is formed at the joint of the first vertical block and the wedge-shaped block.
4. The self-cleaning mud suction inlet sealing structure of the trailing suction hopper dredger as claimed in claim 2, wherein: a rubber bulge is integrally formed at the joint of the second vertical block and the wedge-shaped block, and a high-density rubber column playing a role in strengthening and supporting is axially inserted into a groove formed between the second vertical block and the rubber bulge.
5. The self-cleaning mud suction inlet sealing structure of the trailing suction hopper dredger according to any one of claims 2-4, characterized in that: a low-density rubber buffer outer lip is integrally manufactured on the extension of the wedge-shaped block, and a high-density rubber positioning block is detachably inserted in the joint of the inner edge of the wedge-shaped block and the steel component in a split manner.
6. The self-cleaning mud suction inlet sealing structure of the trailing suction hopper dredger according to claim 1, characterized in that: a buffer slot is formed in the connection part of the third inclined body and the outer lip body of the lower hook.
7. The self-cleaning mud suction inlet sealing structure of the trailing suction hopper dredger according to claim 1, characterized in that: the extension of the unidirectional rubber blade is provided with an outer step and an inner step, the contact edges of the first transverse structural body, the second longitudinal structural body, the third inclined body and the lower hook outer lip body with the unidirectional rubber blade are clamped between the outer step and the inner step, when the unidirectional rubber blade is closed, the outer step is clamped on the outer side, and the inner step is clamped on the inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011474048.8A CN112695824B (en) | 2020-12-15 | 2020-12-15 | Self-cleaning type mud suction inlet sealing structure of trailing suction hopper dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011474048.8A CN112695824B (en) | 2020-12-15 | 2020-12-15 | Self-cleaning type mud suction inlet sealing structure of trailing suction hopper dredger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112695824A CN112695824A (en) | 2021-04-23 |
| CN112695824B true CN112695824B (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011474048.8A Active CN112695824B (en) | 2020-12-15 | 2020-12-15 | Self-cleaning type mud suction inlet sealing structure of trailing suction hopper dredger |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007078108A (en) * | 2005-09-15 | 2007-03-29 | Nok Corp | Sealing device |
| CN202203404U (en) * | 2011-07-12 | 2012-04-25 | 龙口市飞轮汽车配件有限责任公司 | Wheel hub oil seal for loader bridge |
| CN204114142U (en) * | 2014-08-19 | 2015-01-21 | 天津包博特密封科技有限公司 | Dredger reamer bearing sand prevention seal ring |
| CN109899401A (en) * | 2018-10-29 | 2019-06-18 | 舍弗勒技术股份两合公司 | Sealing device |
| CN110939167A (en) * | 2019-12-30 | 2020-03-31 | 长江南京航道工程局 | Bidirectional sealing device for side suction port of trailing suction dredger |
-
2020
- 2020-12-15 CN CN202011474048.8A patent/CN112695824B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007078108A (en) * | 2005-09-15 | 2007-03-29 | Nok Corp | Sealing device |
| CN202203404U (en) * | 2011-07-12 | 2012-04-25 | 龙口市飞轮汽车配件有限责任公司 | Wheel hub oil seal for loader bridge |
| CN204114142U (en) * | 2014-08-19 | 2015-01-21 | 天津包博特密封科技有限公司 | Dredger reamer bearing sand prevention seal ring |
| CN109899401A (en) * | 2018-10-29 | 2019-06-18 | 舍弗勒技术股份两合公司 | Sealing device |
| CN110939167A (en) * | 2019-12-30 | 2020-03-31 | 长江南京航道工程局 | Bidirectional sealing device for side suction port of trailing suction dredger |
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| Publication number | Publication date |
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| CN112695824A (en) | 2021-04-23 |
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