CN116620525A - Underwater centrifugal circulation impeller type sucker - Google Patents

Underwater centrifugal circulation impeller type sucker Download PDF

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Publication number
CN116620525A
CN116620525A CN202310549849.3A CN202310549849A CN116620525A CN 116620525 A CN116620525 A CN 116620525A CN 202310549849 A CN202310549849 A CN 202310549849A CN 116620525 A CN116620525 A CN 116620525A
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CN
China
Prior art keywords
centrifugal
impeller
sucker
chassis
underwater
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Pending
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CN202310549849.3A
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Chinese (zh)
Inventor
雷勇
王旭
张俊鹏
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Zhejiang University ZJU
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Zhejiang University ZJU
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Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN202310549849.3A priority Critical patent/CN116620525A/en
Publication of CN116620525A publication Critical patent/CN116620525A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D57/00—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track
    • B62D57/02—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members
    • B62D57/024—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members specially adapted for moving on inclined or vertical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H19/00—Marine propulsion not otherwise provided for
    • B63H19/08—Marine propulsion not otherwise provided for by direct engagement with water-bed or ground
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses an underwater centrifugal circulation impeller type sucker. The sucker shell is of a hollow columnar structure, the impeller chassis and the centrifugal circulation impeller are fixedly connected and then are arranged in the cavity of the inside, the waterproof direct current motor and the Bernoulli chassis are respectively and fixedly arranged on the upper side and the lower side of the sucker shell coaxially, the lower end of an output shaft of the waterproof direct current motor penetrates through the sucker shell and then is fixedly connected with the impeller chassis and the shaft end retainer ring sequentially, a plurality of trapezoid grooves are formed in the upper portion of the centrifugal ring, protruding blocks are formed between the adjacent trapezoid grooves, the inner inclined straight blades and the outer inclined straight blades are fixedly connected through the protruding blocks, and the inclination angles between the inner inclined straight blades and the outer inclined straight blades are the same and opposite. Compared with the traditional centrifugal impeller type suction cup or Bernoulli suction cup, the underwater centrifugal impeller type suction cup can generate larger suction force, and the suction cup has low energy consumption.

Description

Underwater centrifugal circulation impeller type sucker
Technical Field
The invention belongs to the field of mechanical innovation design, and particularly relates to an underwater centrifugal circulation impeller type suction cup.
Background
The underwater adsorption technology and the underwater grabbing technology are one of key technologies for developing underwater exploration and operation, are widely applied to various fields such as marine geological exploration, resource exploration, mineral product evaluation, deep sea salvage and the like, and are used for completing various engineering operations such as underwater sampling, underwater salvage, underwater adsorption and the like. In the conventional underwater adsorption technology, if an underwater robot for bearing heavy operations such as drilling cutting and high-pressure cleaning is required to stably adsorb, a large sucker or a plurality of small suckers are required, so that the whole mechanism is complex and heavy, but the underwater grabbing technology adopts a mechanical grabbing device, so that the problems of complex design, inconvenient operation and the like are solved, the underwater robot is difficult to adapt to objects with various irregular shapes, the grabbed objects are possibly damaged, and the underwater robot cannot adsorb in an anhydrous environment.
In recent years, as robots are widely used in various fields, special robot techniques have been rapidly developed. Unlike industrial and service robots, special robots are aimed at solving the problems in the professional field, and therefore require refinement and reinforcement in some special functions and requirements. The underwater wall climbing robot is used as a new important branch of a special robot and plays a very important role in marine equipment cleaning, underwater structure exploration and water conservancy equipment maintenance. However, how to achieve stable adsorption on different types of surfaces has been one of the difficulties in the research of underwater wall climbing robots.
The traditional underwater robot depends on magnetic adsorption, vacuum adsorption or negative pressure adsorption to realize attachment on structures and equipment, then various adsorption technologies at present have certain defects, and the applicable scene of magnetic adsorption is limited to the surface of ferromagnetic materials and cannot play a role on non-ferromagnetic material structures such as piers, dams and the like; the vacuum adsorption is difficult to get rid of the limit of a vacuum pump, and the vacuum sucker is easy to leak in an underwater environment, so that the difficulty degree of mechanism design and actual operation is greatly increased; the cyclone negative pressure adsorption relies on a high-pressure water pump or a high-power motor to generate a negative pressure area in the sucker cavity, and the negative pressure adsorption technology belongs to contact adsorption, and is more dependent on sealing performance, so that the sucker body or a connecting pipeline is easier to be blocked to cause adsorption failure.
Aiming at the negative pressure adsorption technology, currently applied suckers can be mainly divided into two types: firstly, vacuum negative pressure is generated by a vacuum generating device so as to carry out adsorption. The sucker can work in a liquid medium environment because the sucker depends on a vacuum generating device. The disadvantage is that the device is relatively complex, the operating requirements are relatively high and the costs are high. The other is to remove the medium in the closed space through mechanical movement to form a negative pressure environment so as to form adsorption. The sucker has a simple structure and is convenient to operate, but the adsorption capacity is limited under the limit of a certain volume and power, and the sucker cannot meet the requirements of some heavy operation fields, so that the design of the underwater sucker with small volume, small power and strong adsorption capacity has important application value.
A bernoulli chuck suitable for use in underwater operations as disclosed in the patent publication CN112478109a includes a suction body and a pusher within the suction body. The suction cup flows through the propeller manufacturing environment, and a flow gap is formed between the suction surface and the wall surface through the supporting structure at the bottom of the suction surface, because the Bernoulli effect of the suction surface and the reaction force of the propeller form the suction force of the whole suction cup. The design has the advantages of simple structure, convenient control and convenient manufacture and installation. However, the propeller is used as a sucker power source, so that the water flow disturbance is large, and the underwater observation is influenced; in addition the support structure is prone to wear on rough surfaces. In addition, the independent centrifugal impeller type suction cup or the Bernoulli chassis is limited in adsorption capacity, and if heavy-duty operations such as underwater drilling and cutting with large reaction force are to be executed, a plurality of suction cups are required to be configured, so that the occupied area and the volume are large in distribution, and the required power is large.
Disclosure of Invention
In order to solve the problems in the background technology, the invention aims to design an underwater centrifugal circulation impeller type sucker. The underwater centrifugal circulation impeller type sucker is convenient to install and has larger adsorption force.
The technical scheme of the invention is as follows:
the device comprises a waterproof direct current motor, a sucker shell, a shaft end retainer ring, an annular Bernoulli chassis and a centrifugal mechanism; the water-proof DC motor and the Bernoulli chassis are respectively and coaxially fixedly arranged on the upper side and the lower side of the sucker shell, the shaft end check ring is positioned in the middle of the centrifugal mechanism, and the lower end of the output shaft of the water-proof DC motor penetrates through the sucker shell and is sequentially and fixedly connected with the centrifugal mechanism and the shaft end check ring;
the output shaft of the waterproof direct current motor drives the centrifugal mechanism to rotate, so that water flows out of the cavity of the sucker shell, and vacuum negative pressure is formed in the cavity of the sucker shell, and further underwater adsorption of the sucker is realized.
The centrifugal mechanism comprises a disc-shaped impeller chassis and a centrifugal circulation impeller, the centrifugal circulation impeller is fixedly connected to the lower surface of the impeller chassis, the impeller chassis and the centrifugal circulation impeller are coaxially arranged in a cavity inside the sucker shell after being fixedly connected, holes are formed in the middle parts of the impeller chassis and the centrifugal circulation impeller, and the bottom end of an output shaft of the waterproof direct current motor penetrates through the sucker shell and is sequentially and fixedly connected with the impeller chassis and a shaft end retainer ring.
The centrifugal circulation impeller mainly comprises a centrifugal ring and an inclined blade array, wherein a plurality of trapezoid grooves are formed in the upper portion of the centrifugal ring, so that protruding blocks are formed between the trapezoid grooves between adjacent trapezoid grooves, the inclined blade array is mainly formed by uniformly and alternately arranging a plurality of inclined blades along the circumferential direction of the centrifugal ring, each inclined blade is arranged along the radial direction of the centrifugal ring, and each inclined blade is fixedly connected with the protruding blocks of the centrifugal ring.
The inclined blades comprise an inner inclined straight blade and an outer inclined straight blade, the inner inclined straight blade and the outer inclined straight blade are respectively fixedly connected to the inner side wall and the outer side wall of the centrifugal ring, and the inclined angles between the inner inclined straight blade and the outer inclined straight blade are the same and the inclined directions are opposite;
the number and arrangement positions of the inner inclined straight blades, the outer inclined straight blades and the protruding blocks are identical and aligned.
The inner diameter of the Bernoulli tray is equal to the inner diameter of the sucker housing, and the outer diameter of the Bernoulli tray is larger than the outer diameter of the sucker housing.
The lower end surface of the centrifugal circulation impeller is not lower than the lower end surface of the Bernoulli chassis.
The length of the outer inclined straight blade is greater than that of the inner inclined straight blade.
The principle of the invention is as follows:
as shown in fig. 6, the waterproof direct current motor is coaxially connected with the centrifugal circulation impeller and the impeller chassis, and when the waterproof direct current motor works, the waterproof direct current motor rotates at a high speed to drive the centrifugal circulation impeller and the impeller chassis to rotate at a high speed synchronously, the inner inclined straight blades in the centrifugal circulation impeller agitate water flow at the center of the centrifugal circulation impeller to push outwards, and the water flow at the center of the centrifugal circulation impeller enters into the action area of the outer inclined straight blades after passing through the trapezoid grooves at the centrifugal ring. Because the central axes of the outer inclined straight blades and the centrifugal circulation impeller form a certain inclination angle, the force of the water flow in the sucker is not only centrifugal force but also upward pushing force when the outer inclined straight blades rotate at high speed. And when the water flows flow out of the cavity of the centrifugal circulation impeller and then flows to the external environment through the annular Bernoulli chassis, a flow velocity difference is generated between the inside of the centrifugal circulation impeller and the water flow at the lower part of the Bernoulli chassis to form a Bernoulli effect, so that larger suction force is generated. The other part of water flow flowing upwards in the sucker meets the blocking of the impeller chassis and the inner wall of the sucker shell and can not move forwards continuously, so that part of water flow is accumulated at the upper edge of the inner wall of the sucker shell, and therefore, circumferential circulation which is relatively increased in pressure, relatively stable in speed and relatively concentrated in distribution is formed, the circumferential circulation with increased fluid viscosity can drive fluid below the sucker to do high-speed circumferential motion along a circumferential tangent line through friction in the fluid, and rotational flow and centrifugal force are generated to further increase the suction force of the sucker. Therefore, the centrifugal circulation sucker generates pressure difference to form internal vacuum negative pressure through the combined action of friction force and centrifugal force in fluid instead of generating pressure difference by centrifugal force of a centrifugal impeller type to form vacuum negative pressure. After the sucker adsorbs the wall, water flow in the sucker hardly flows out of the sucker, even if a small amount of water flow flows out, water flow in the environment can enter the sucker to realize the dynamic balance of water flow in the sucker, and then the sucker can stably adsorb the wall.
The sucker can realize non-contact adsorption, belongs to one type of non-contact sucker, has no requirement on the roughness of the adsorption wall surface, and has no requirement on the material of the adsorption wall surface. When the waterproof direct current motor works, the impeller chassis and the centrifugal circulation impeller are driven to coaxially rotate by high-speed rotation, and water flow in the sucker flows out of the cavity of the centrifugal circulation impeller in the middle of the guiding of the special structure of the centrifugal circulation impeller, so that vacuum negative pressure is formed in the cavity of the centrifugal circulation impeller, and the other part is accumulated on the edge part of the impeller chassis to form circumferential circulation, and the circumferential circulation drives fluid below the sucker to do high-speed circular motion through internal friction of the fluid, thereby generating rotational flow and centrifugal force, and further increasing the adsorption capacity of the sucker.
The beneficial effects of the invention are as follows:
1. compared with the traditional centrifugal impeller type sucker or Bernoulli sucker, the underwater centrifugal impeller type sucker can generate larger adsorption force and has stronger adsorption capacity under the condition of the same adsorption area and the same rotation speed.
2. Compared with the traditional underwater centrifugal impeller type sucker, the sucker consumes less power under the condition of generating the same adsorption force, and is higher in energy utilization efficiency.
3. The invention has simple structure, convenient manufacture and installation and portability, and provides possibility for large-scale processing and manufacturing and practical engineering application.
4. The suction force of the suction cup is simple and adjustable, and the suction force of the suction cup is adjusted by controlling the rotating speed of the underwater waterproof motor.
Drawings
FIG. 1 is an expanded view of the centrifugal impeller suction cup structure of the present invention;
FIG. 2 is an isometric view of a centrifugal impeller suction cup of the present invention;
FIG. 3 is an isometric view of a centrifugal impeller of the present invention;
FIG. 4 is a top view of the centrifugal impeller of the present invention;
FIG. 5 is a bottom view of the centrifugal impeller of the present invention;
FIG. 6 is a schematic drawing showing a section and principle of the centrifugal impeller suction cup of the present invention.
In the figure: 1. waterproof direct current motor; 2. a suction cup housing; 3. an impeller chassis; 4. centrifugal circulation impeller; 5. a shaft end retainer ring; 6. a bernoulli chassis; 7. a trapezoidal groove; 8. the outer side of the straight blade is inclined; 9. the inner side of the straight blade is inclined; 10. and (5) centrifuging the circular ring.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The implementation process of the embodiment of the invention is as follows:
as shown in fig. 1 and 2, the sucker comprises a waterproof direct current motor 1, a sucker shell 2, a shaft end retainer ring 5, an annular bernoulli chassis 6 and a centrifugal mechanism; the sucker shell 2 is of a hollow columnar structure with a hole formed in the top end and an opening in the bottom end, the centrifugal mechanism with the hole in the middle is arranged in a cavity in the sucker shell 2 and is not in contact with the inner side wall of the sucker shell, the waterproof direct current motor 1 and the Bernoulli chassis 6 are respectively and coaxially fixedly arranged on the upper side and the lower side of the sucker shell 2, the shaft end retainer ring 5 is positioned in the middle of the centrifugal mechanism, and the lower end of the output shaft of the waterproof direct current motor 1 penetrates through the sucker shell 2 and is sequentially and fixedly connected with the centrifugal mechanism and the shaft end retainer ring 5 from top to bottom;
the output shaft of the waterproof direct current motor 1 drives the centrifugal mechanism to rotate, so that water flows out of the cavity of the sucker shell 2, and vacuum negative pressure is formed in the cavity of the sucker shell 2, so that efficient underwater adsorption of the sucker is realized.
The centrifugal mechanism comprises a disc-shaped impeller chassis 3 and a centrifugal circulation impeller 4, the centrifugal circulation impeller 4 is fixedly connected to the lower surface of the impeller chassis 3, the impeller chassis 3 and the centrifugal circulation impeller 4 are coaxially arranged in a cavity inside the sucker shell 2 after being fixedly connected, holes are formed in the middle parts of the impeller chassis 3 and the centrifugal circulation impeller 4, and the bottom end of an output shaft of the waterproof direct current motor 1 penetrates through the sucker shell 2 and is sequentially and fixedly connected with the impeller chassis 3 and the shaft end retainer ring 5.
The shaft end retainer ring 5 is used for axially limiting and fixing the impeller chassis 3 and the centrifugal circulation impeller 4. The side and upper surface of the centrifugal mechanism formed by tightly adhering the impeller chassis 3 and the centrifugal circulation impeller 4 respectively keep certain gaps (the gap size is generally 1 mm-5 mm) with the side and upper surface of the inner wall of the sucker shell 2.
The waterproof direct current motor 1 passes through a central hole at the upper end of the sucker shell 2 to be coaxially connected with the centrifugal circulation impeller 4 and the impeller chassis 3, and drives a centrifugal mechanism formed by the centrifugal circulation impeller 4 and the impeller chassis 3 to rotate at a high speed. The annular Bernoulli chassis 6 is coaxially arranged on the lower end surface of the sucker housing 2, and the height of the sucker housing 2 needs to ensure that the lower end surface of the centrifugal circulation impeller 4 is not lower than the lower end surface of the Bernoulli chassis 6.
As shown in fig. 3, 4 and 5, the centrifugal circulation impeller 4 mainly comprises an annular centrifugal ring 10 and an inclined blade array, the upper part of the centrifugal ring 10 is provided with a plurality of trapezoidal grooves 7 so as to form convex blocks between the adjacent trapezoidal grooves 7, the inclined blade array mainly comprises a plurality of inclined blades which are uniformly distributed at intervals along the circumferential direction of the centrifugal ring 10, each inclined blade is arranged along the radial direction of the centrifugal ring 10, each inclined blade is fixedly connected with the convex block of the corresponding centrifugal ring 10, and each inclined blade corresponds to one convex block.
The inclined blades comprise an inner inclined straight blade 9 and an outer inclined straight blade 8, the inner inclined straight blade 9 and the outer inclined straight blade 8 are respectively fixedly connected to the inner side wall and the outer side wall of the centrifugal circulation impeller 4, and the inclined angles between the inner inclined straight blade 9 and the outer inclined straight blade 8 are the same and the inclined directions are opposite;
the number and arrangement positions of the inner inclined straight blades 9, the outer inclined straight blades 8 and the protruding blocks are distributed identically and aligned;
the part except the convex blocks in the centrifugal ring 10 is used as a central ring, and the top and the bottom of the inner inclined straight blade 9 are respectively and fixedly connected with the top and the bottom of the outer inclined straight blade 8 through the convex blocks and the central ring.
The inner diameter of the Bernoulli chassis 6 is equal to the inner diameter of the sucker housing 2, the outer diameter of the Bernoulli chassis 6 is larger than the outer diameter of the sucker housing 2, and a certain small gap is always kept between the lower surface of the Bernoulli chassis 6 and the adsorbed wall surface in the actual working process of the sucker.
The lower end surface of the centrifugal circulation impeller 4 is not lower than the lower end surface of the bernoulli tray 6.
The length of the outer inclined straight blade 8 is greater than the length of the inner inclined straight blade 9.
The number of the inner inclined straight blades 9 and the outer inclined straight blades 8 of the centrifugal circulation impeller 4 is variable, and when the length of the outer inclined straight blades 8 is larger than that of the inner inclined straight blades 9, the adsorption force of the sucking disc is larger, and the adsorption effect is better.
The waterproof direct current motor 1 rotates at a high speed to drive the centrifugal circulation impeller 4 and the impeller chassis 3 to rotate at a high speed coaxially, and water flow centrifugally flows out of the hollow cavity of the sucker housing 2 under the drive of the centrifugal circulation impeller 4 at a high speed, so that vacuum negative pressure is formed in the hollow cavity of the sucker housing 2, and underwater adsorption of the sucker is realized.
The centrifugal circulation impeller 4 in the invention is different from the traditional centrifugal impeller in action principle, when the traditional centrifugal impeller rotates at high speed, water is directly thrown to the edge of the impeller under the action of centrifugal force, and the center of the impeller forms vacuum negative pressure because the water is thrown out; when the centrifugal circulation impeller 4 rotates at a high speed, the inner inclined straight blades 9 and the axis of the centrifugal circulation impeller 4 form a certain inclined angle, so that water flow at the center of the centrifugal circulation impeller 4 is pushed upwards, enters into the action area of the outer inclined straight blades 8 through the trapezoid grooves 7 of the centrifugal ring 10 under the action of centrifugal force, one part of water flow is thrown outwards by the outer inclined straight blades 8, the other part of water flow is extruded upwards and accumulated at the edge of the lower end face of the impeller chassis 3 under the action of the centrifugal force, and a peripheral circulation with relatively stable and concentrated speed distribution is formed to drive lower water flow to rotate at a high speed, so that the centrifugal circulation impeller sucker generates pressure difference together through fluid internal friction force and centrifugal force to form vacuum negative pressure.
The centrifugal circular flow impeller suction cup of the present invention can produce a greater and more stable suction force than a conventional centrifugal impeller suction cup or bernoulli suction cup at the same rotational speed and impeller diameter. Under the same impeller diameter condition, the impeller diameter of the underwater centrifugal impeller type sucking disc and the impeller diameter of the common centrifugal impeller type sucking disc are 125mm, the diameters of the sucking disc shells of the underwater centrifugal impeller type sucking disc and the common centrifugal impeller type sucking disc are 135mm, the Bernoulli chassis diameter is 190mm, the rotating speed is 2000r/min, the wall clearance of the sucking disc shells is 4mm, and under other conditions, the suction force of the underwater centrifugal impeller type sucking disc on the sucking wall is 546N, the consumed power is 312W, and the suction force of the common centrifugal impeller type sucking disc on the sucking wall is 472N, the consumed power is 293W, namely, compared with the suction force of the common centrifugal impeller type sucking disc, the underwater centrifugal impeller type sucking disc is obviously improved. If the ordinary centrifugal impeller type sucking disc wants to generate the sucking force of 546N, about 370W of power is consumed, namely, the ordinary centrifugal impeller type sucking disc needs to pay more power consumption to achieve the same sucking effect as the underwater centrifugal impeller type sucking disc. Therefore, the adsorption performance of the underwater centrifugal impeller type sucker is obviously improved compared with that of the conventional common centrifugal impeller type sucker.

Claims (7)

1. An underwater centrifugal circulation impeller type sucker is characterized in that:
the novel water-proof DC motor comprises a water-proof DC motor (1), a sucker shell (2), a shaft end retainer ring (5), an annular Bernoulli chassis (6) and a centrifugal mechanism; the sucker shell (2) is of a hollow columnar structure with a hole at the top end and an opening at the bottom end, the centrifugal mechanism is arranged in a cavity inside the sucker shell (2) and is not in contact with the inner side wall of the sucker shell, the waterproof direct current motor (1) and the Bernoulli chassis (6) are respectively and coaxially fixedly arranged on the upper side and the lower side of the sucker shell (2), the shaft end check ring (5) is positioned in the middle of the centrifugal mechanism, and the lower end of an output shaft of the waterproof direct current motor (1) penetrates through the sucker shell (2) and is sequentially fixedly connected with the centrifugal mechanism and the shaft end check ring (5);
the output shaft of the waterproof direct current motor (1) drives the centrifugal mechanism to rotate, so that water flows out of the cavity of the sucker shell (2), and vacuum negative pressure is formed in the cavity of the sucker shell (2), and further underwater adsorption of the sucker is realized.
2. An underwater centrifugal impeller suction cup according to claim 1, characterized in that:
the centrifugal mechanism comprises a disc-shaped impeller chassis (3) and a centrifugal circulation impeller (4), wherein the centrifugal circulation impeller (4) is fixedly connected to the lower surface of the impeller chassis (3), the impeller chassis (3) and the centrifugal circulation impeller (4) are coaxially arranged in a cavity inside the sucker shell (2) after being fixedly connected, holes are formed in the middle parts of the impeller chassis (3) and the centrifugal circulation impeller (4), and the bottom end of an output shaft of the waterproof direct current motor (1) penetrates through the sucker shell (2) and then is sequentially and fixedly connected with the impeller chassis (3) and the shaft end retainer ring (5) in a coaxial mode.
3. An underwater centrifugal impeller suction cup according to claim 2, characterized in that:
the centrifugal circulation impeller (4) mainly comprises a centrifugal ring (10) and an inclined blade array, wherein a plurality of trapezoid grooves (7) are formed in the upper portion of the centrifugal ring (10), so that protruding blocks are formed between the trapezoid grooves (7) between adjacent centrifugal rings, the inclined blade array is mainly formed by uniformly arranging a plurality of inclined blades at intervals along the circumferential direction of the centrifugal ring (10), and each inclined blade is arranged along the radial direction of the centrifugal ring (10) and fixedly connected with the protruding blocks of the centrifugal ring (10).
4. An underwater centrifugal impeller suction cup according to claim 3, characterized in that:
the inclined blades comprise an inner inclined straight blade (9) and an outer inclined straight blade (8), the inner inclined straight blade (9) and the outer inclined straight blade (8) are respectively fixedly connected to the inner side wall and the outer side wall of the centrifugal ring (10), and the inclined angles between the inner inclined straight blade (9) and the outer inclined straight blade (8) are the same and the inclined directions are opposite;
the number and arrangement positions of the inner inclined straight blades (9), the outer inclined straight blades (8) and the protruding blocks are identical and aligned.
5. An underwater centrifugal impeller suction cup according to claim 1, characterized in that:
the inner diameter of the Bernoulli tray (6) is equal to the inner diameter of the sucker housing (2), and the outer diameter of the Bernoulli tray (6) is larger than the outer diameter of the sucker housing (2).
6. An underwater centrifugal impeller suction cup according to claim 2, characterized in that:
the lower end face of the centrifugal circulation impeller (4) is not lower than the lower end face of the Bernoulli chassis (6).
7. An underwater centrifugal impeller suction cup according to claim 4, characterized in that:
the length of the outer inclined straight blade (8) is longer than that of the inner inclined straight blade (9).
CN202310549849.3A 2023-05-16 2023-05-16 Underwater centrifugal circulation impeller type sucker Pending CN116620525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310549849.3A CN116620525A (en) 2023-05-16 2023-05-16 Underwater centrifugal circulation impeller type sucker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310549849.3A CN116620525A (en) 2023-05-16 2023-05-16 Underwater centrifugal circulation impeller type sucker

Publications (1)

Publication Number Publication Date
CN116620525A true CN116620525A (en) 2023-08-22

Family

ID=87616429

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310549849.3A Pending CN116620525A (en) 2023-05-16 2023-05-16 Underwater centrifugal circulation impeller type sucker

Country Status (1)

Country Link
CN (1) CN116620525A (en)

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