CN108423149B - Hobbing cutter type fishing net rope winding preventing device for tail part of ship body - Google Patents

Hobbing cutter type fishing net rope winding preventing device for tail part of ship body Download PDF

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Publication number
CN108423149B
CN108423149B CN201810444157.1A CN201810444157A CN108423149B CN 108423149 B CN108423149 B CN 108423149B CN 201810444157 A CN201810444157 A CN 201810444157A CN 108423149 B CN108423149 B CN 108423149B
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upper cover
hob
cutter
chute
cover
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CN108423149A (en
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裴正强
忻时威
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Sinotrans & Csc Holdings Co ltd
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Sinotrans & Csc Holdings Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H5/00Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/16Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
    • B63H5/165Propeller guards, line cutters or other means for protecting propellers or rudders

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)

Abstract

The invention discloses a hob type fishing net rope winding preventing device for a tail part of a ship body, which comprises a body and a cutter arranged in the body, wherein the body comprises a plurality of lower covers circumferentially encircling the tail shaft of the ship body and upper covers buckled on the lower covers, and the upper covers can move along the rotation direction of the tail shaft of the ship body relative to the lower covers; the lower cover is provided with a plurality of fixed holes used for being connected with the ship body, the upper cover is provided with a plurality of mounting holes corresponding to the fixed holes, the cutter is arranged at the bottom of the upper cover through the elastic component, the position of the upper cover corresponding to the cutter is provided with a cutter opening, the lower cover is internally provided with a movable component and a resetting component, the movable component is used for pushing the cutter out of the cutter opening, and the resetting component is used for enabling the upper cover to be always positioned right above the lower cover under the condition of no stress. The hob can be accommodated in the body in a non-working state; because the blades are obliquely arranged, the blades are not easy to collapse or roll, and the cutting can be automatically completed by utilizing the force of winding the fishing net rope.

Description

Hobbing cutter type fishing net rope winding preventing device for tail part of ship body
Technical Field
The invention belongs to the field of ship auxiliary equipment, and particularly relates to a hob type fishing net rope winding preventing device for a tail part of a ship body.
Background
In recent years, the water environment is continuously deteriorated, more and more water bodies are affected by human activities, wherein besides the pollution of water quality, various industrial wastes and household garbage are thrown away on the river side intentionally or unintentionally at present, then enter larger water areas gradually along with water flow, and finally are gathered into the ocean to form huge marine garbage. Some of the ocean waste stays on the beach, some can float on the sea surface or sink into the sea floor, and only ocean waste on the pacific reaches 300 tens of thousands of square kilometers, even exceeds the territorial area of india, so that a plastic-based ocean waste belt with the area as large as Texas is formed on the pacific. Most of the marine garbage is a material which is difficult to naturally degrade or cannot naturally degrade at all, and the marine garbage not only causes catastrophic damage to the marine ecological balance, but also causes great influence to human beings, for example, beach garbage causes mass death of beach organisms and seabirds, meanwhile, clean beach sand which can be used for human activities is less and less, and the marine garbage can affect the human marine activities (such as winding sundries such as fishing nets, ropes and the like on propellers of fishing, army or scientific research ships) besides causing death caused by mistaking and mistaking of marine organisms, thereby causing property loss due to light weight and accident due to heavy weight.
In order to prevent the propeller of the ship from being wound by sundries in water, the existing ship is generally provided with a cutter, and Chinese patent CN106995048A and CN107097927A both disclose a stern shaft anti-winding cutter, which all use four steel plates coaxially arranged on a stern shaft, the outer bevel edge of the steel plates is a cutting edge, and all nylon ropes and fishing nets passing through the diameter of the steel plates can be cut off to prevent winding. However, the ropes, the fishing nets and the like passing through the blades from the front can directly pass through gaps among the blades to enter the rear propeller to be wound due to no stress, and the ropes, the fishing nets and the like passing through the side can not pass through the blades at all and are directly wound on the propeller shaft; moreover, as the blade is always exposed, on one hand, the resistance of the ship to travel is increased, on the other hand, the blade is easy to roll and even collapse, and in addition, the exposed blade is also a potential safety hazard to marine organisms.
Chinese patent CN105857547a discloses a UUV fishing net winding preventing device, which comprises two rotary blades, a winding and unwinding driving device and a rotary driving device, wherein the winding and unwinding driving device can control the two rotary blades to be in a winding state or a V-shaped working state, and the rotary driving device can control the rotary blades to perform rotary motion to cut the fishing net. Although the blade can be retracted in a non-working state, the potential safety hazard is reduced, the blade is very easy to damage because the force of the blade on the fishing net is vertical to the blade; and because the multistage movement mechanism is required to be arranged to respectively control the storage and rotation of the blade, the structure is complex, and the failure rate is high.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the hob type fishing net rope winding preventing device for the tail of the ship body, which is not easy to collapse, has a simple structure, can realize the retraction and the release of the blade, has low failure rate and does not need to be provided with a power device alone, and the specific scheme is as follows:
the hob type fishing net rope winding preventing device for the tail part of the ship body comprises a body and a cutter, wherein the body comprises a plurality of lower covers circumferentially encircling the tail shaft of the ship body and upper covers buckled on the lower covers, and the upper covers can move along the rotation direction of the tail shaft of the ship body relative to the lower covers; the lower cover is provided with a plurality of fixing holes for connecting with the ship body, and the upper cover is provided with a plurality of mounting holes corresponding to the fixing holes;
the cutter is connected to the bottom of the upper cover through an elastic component, and a cutter opening is formed in the upper cover at a position corresponding to the cutter; the lower cover is internally provided with a movable component and a reset component, the movable component is combined with the elastic component to enable the cutter to move along the rotation direction of the tail shaft of the hull along with the upper cover and extend out of the cutter opening, and the reset component is combined with the movable component and the elastic component to enable the cutter to move along the opposite direction of the rotation direction of the tail shaft of the hull along with the upper cover and retract from the cutter opening.
Further, the movable assembly comprises a first chute and a second chute which are symmetrically arranged on two side surfaces of the lower cover, wherein the first chute and the second chute are both arranged along the rotation direction of the tail shaft of the ship body, and the distance between the second chute and the upper cover is smaller than that between the first chute and the upper cover; the first sliding groove is communicated with the second sliding groove through a slope groove, and the widths and depths of the first sliding groove, the second sliding groove and the slope groove are equal.
Further, the first sliding groove protrudes outwards from the side wall of the lower cover, the bottom of the side face of the upper cover corresponding to the first sliding groove is inwards bent to form a structure matched with the first sliding groove, the height of the upper cover is equal to the distance between the first sliding groove and the upper end of the lower cover, and the width of the upper cover is equal to the distance between the two first sliding grooves.
Further, the included angle between the slope groove and the first sliding groove is 30-45 degrees.
Further, the cutter comprises a hob, the radius of the hob section is larger than the distance between the second chute and the upper cover, and the diameter of the hob section is smaller than the distance between the second chute and the upper cover; the circle centers of the two ends of the hob are respectively provided with a hob shaft used for being connected with the elastic component, and the hob shafts are sleeved with bearings matched with the first sliding grooves.
Further, the elastic assembly includes an elastic rod connected between the roller shaft and the upper cover.
Further, the included angle between the cutting edge of the hob and the axis of the hob shaft is 15-45 degrees.
Further, the reset component comprises a boss arranged in the lower cover, a plurality of elastic springs connected with the inner wall of the upper cover are arranged on the boss, and the elastic springs are arranged along the rotation direction of the tail shaft of the ship body.
Further, a cover body matched with the cutter opening is arranged on the lower cover.
Further, the lower cover is provided with a lower limit boss, and the upper cover is provided with an upper limit boss which can act with the lower limit boss.
The invention has the beneficial effects that: the hob type fishing net rope winding preventing device for the tail of the ship body provided by the invention has the advantages that the hob can be contained in the body in a non-working state; because the blades are obliquely arranged, the blades are not easy to collapse or roll, and the cutting can be automatically completed by utilizing the force of winding the fishing net rope.
Drawings
Figure 1 is a schematic installation view of embodiment 1 of the present invention,
figure 2 is a schematic diagram showing the connection structure of the upper cover and the lower cover in embodiment 1 of the present invention,
figure 3 is a schematic view of the connection structure between the lower cover and the hull according to the embodiment of the invention,
figure 4 is a schematic view of the internal structure of embodiment 1 of the present invention,
figure 5 is a schematic view of the structure of the cutter according to embodiment 1 of the present invention,
figure 6 is a top view showing the structure of the upper cover of embodiment 1 of the present invention,
fig. 7 is a schematic diagram showing the internal structure of embodiment 2 of the present invention.
Figure number and name: 1. the device comprises a body, 101, a lower cover, 102, an upper cover, 103, a cutter opening, 104, a cover body, 105, a mounting hole, 106, a lower limit boss, 107, an upper limit boss, 2, a cutter, 201, a hob, 202, a hob shaft, 203, a bearing, 3, a hull tail shaft, 4, an elastic component, 401, an elastic rod, 5, a movable component, 501, a first sliding groove, 502, a second sliding groove, 503, a slope groove, 6, a reset component, 601, a boss, 602, an elastic spring, 7 and a hull.
Detailed Description
In order to describe the technical content, constructional features, achieved objects and effects of the present invention in detail, the following examples are given by way of example and are described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 6, the hob type fishing net rope winding preventing device for the tail of a ship body disclosed by the invention comprises a body 1 and a cutter 2, wherein the body 1 comprises a plurality of lower covers 101 circumferentially surrounding the tail shaft 3 of the ship body and upper covers 102 buckled on the lower covers 101, and the upper covers 102 can move relative to the lower covers 101 along the rotation direction of the tail shaft 3 of the ship body; the lower cover 101 is provided with a plurality of fixing holes for connecting with the ship body 7, and the upper cover 102 is provided with a plurality of mounting holes 105 (not shown in the drawing) corresponding to the fixing holes; when the ship is installed, the upper cover and the lower cover are assembled, then the installation tool can extend into the lower cover through the installation hole to be fixedly connected to the ship body, and finally the installation hole is sealed, so that the relative tightness in the ship body is ensured.
The cutter 2 is connected to the bottom of the upper cover 102 through the elastic component 4, and a cutter opening 103 is formed in the upper cover 102 at a position corresponding to the cutter 2; the lower cover 101 is internally provided with a movable component 5 and a reset component 6, wherein the movable component 5 is combined with the elastic component 4 to enable the cutter 2 to extend out of the cutter port 103 along with the movement of the upper cover 102 along the rotation direction of the tail shaft 3 of the ship body, and the reset component 6 is combined with the movable component 5 and the elastic component 4 to enable the cutter 2 to retract out of the cutter port 103 along with the movement of the upper cover 102 along the reverse direction of the rotation direction of the tail shaft 3 of the ship body.
Referring to fig. 4, the movable assembly 5 includes a first chute 501 and a second chute 502 symmetrically disposed on two sides of the lower cover 101, the first chute 501 and the second chute 502 being disposed along a rotation direction of the hull aft shaft 3, the second chute 502 being spaced from the upper cover 102 less than the first chute 501; the first chute 501 and the second chute 502 are communicated through the slope chute 503, and the widths and depths of the first chute 501, the second chute 502 and the slope chute 503 are equal. As shown in fig. 3, the first chute 501 protrudes outward from the side wall of the lower cover 101, the bottom of the side surface of the upper cover 102 corresponding to the first chute 501 is bent inward to form a structure matching with the first chute 501, the height of the upper cover 102 is equal to the distance between the first chute 501 and the upper end of the lower cover 101, and the width of the upper cover 102 is equal to the distance between the two first chutes 501. The reset assembly 6 comprises a boss 601 arranged in the lower cover 101, a plurality of elastic springs 602 connected with the inner wall of the upper cover 102 are arranged on the boss 601, and the elastic springs 602 are arranged along the rotation direction of the tail shaft 3 of the ship body. The lower cover 101 is provided with a cover 104 which is matched with the cutter opening 103.
As shown in fig. 5, the cutter 2 comprises a hob 201, the radius of the section of the hob 201 is larger than the distance between the second chute 502 and the upper cover 102, and the diameter of the section of the hob 201 is smaller than the distance between the second chute 502 and the upper cover 102; the circle centers of the two ends of the hob 201 are respectively provided with a hob shaft 202 which is connected with an elastic component 4, the hob shafts 202 are sleeved with bearings 203 which are matched with the first sliding grooves 501, and the elastic component 4 comprises an elastic rod 401 which is connected between the hob shafts 202 and the upper cover 102. The included angle between the cutting edge of the hob 201 and the axis of the hob shaft 202 is 20 degrees, and when the included angle between the cutting edge and the axis of the hob shaft is smaller than 15 degrees, the direction of the cutting edge is the same as the winding direction of the wound fishing net or rope, so that the cutting is not facilitated; when the included angle between the blade and the axis of the cutter shaft is larger than 45 degrees, the component force of the winding direction of the wound fishing net or rope in the direction vertical to the blade is too large, and the blade is even broken due to accommodation.
The angle of the slope groove 503 is 30 degrees with the first chute 501, when the angle of the slope groove is less than 30 degrees, the hob is possibly vibrated from the first chute to the second chute during the running process of the hull, so that the blade extends out of the upper cover in a non-working state; when the angle of the slope groove is larger than 45 degrees, the hob needs a large force to be transferred into the second chute, and the blade stretches out, the tail shaft of the ship body is seriously influenced by the fishing net or the rope.
When fishing nets or ropes and the like start to wind outside the upper cover under the action of the tail shaft of the ship body, the upper cover rotates along the motion direction of the tail shaft of the ship body under the action of friction force while gradually winding, the hob moves towards the slope groove along the first chute under the action of the elastic rod, and meanwhile the cutter opening and the cover body are gradually dislocated; when the hob moves to the second chute, the blade is exposed from the cutter opening to contact with the fishing net or the rope outside the upper cover, and the blade is obliquely arranged relative to the hob shaft, so that dislocation movement is generated between the blade and the fishing net or the rope under the condition that the fishing net or the rope is further wound tightly, and the fishing net or the rope is further cut up; when the fishing net or the rope is cut up, the upper cover loses friction force with the fishing net or the rope and the like, the upper cover returns to the initial position under the action of the elastic spring, and the hob moves into the first chute from the second chute.
Example 2
Referring to fig. 7, the difference between the present embodiment and embodiment 1 is that: a lower limit boss 106 is arranged on the lower cover 101, and an upper limit boss 107 which can act with the lower limit boss 106 is arranged on the upper cover 102; in the initial state, the distance between the upper limit boss and the lower limit boss is greater than the distance between the starting end of the first chute and the tail end of the slope chute and is smaller than the distance between the starting end of the first chute and the tail end of the second chute; the upper cover can not continue to rotate after the upper limit bulge and the lower limit bulge are contacted, and the elastic rod or the cutter shaft is prevented from being damaged due to overlarge movement distance of the upper cover along with the winding object.
In summary, the present invention is not limited to the preferred embodiments, but is intended to cover modifications and equivalent arrangements included within the scope of the appended claims and their equivalents.

Claims (8)

1. A hobbing cutter formula anti-fish net rope winding device for hull afterbody, includes body (1) and cutter (2), its characterized in that: the body (1) comprises a plurality of lower covers (101) circumferentially encircling the hull tail shaft (3) and upper covers (102) buckled on the lower covers (101), and the upper covers (102) can move along the rotation direction of the hull tail shaft (3) relative to the lower covers (101); the lower cover (101) is provided with a plurality of fixing holes for connecting with the ship body (7), and the upper cover (102) is provided with a plurality of mounting holes (105) corresponding to the fixing holes;
the cutter (2) is connected to the bottom of the upper cover (102) through an elastic component (4), and a cutter opening (103) is formed in the upper cover (102) at a position corresponding to the cutter (2); a movable assembly (5) and a reset assembly (6) are arranged in the lower cover (101), the movable assembly (5) is combined with the elastic assembly (4) to enable the cutter (2) to extend out of the cutter opening (103) along the rotation direction of the upper cover (102) along the tail shaft (3) of the ship body, and the reset assembly (6) is combined with the movable assembly (5) and the elastic assembly (4) to enable the cutter (2) to retract from the cutter opening (103) along the movement of the upper cover (102) along the reverse direction of the rotation direction of the tail shaft (3) of the ship body;
the movable assembly (5) comprises a first chute (501) and a second chute (502) symmetrically arranged on two side surfaces of the lower cover (101), wherein the first chute (501) and the second chute (502) are arranged along the rotation direction of the tail shaft (3) of the ship body, and the distance between the second chute (502) and the upper cover (102) is smaller than that between the first chute (501) and the upper cover (102); the first sliding groove (501) is communicated with the second sliding groove (502) through a slope groove (503), and the widths and depths of the first sliding groove (501), the second sliding groove (502) and the slope groove (503) are equal;
the lower cover (101) is provided with a lower limit boss (106), and the upper cover (102) is provided with an upper limit boss (107) which can act with the lower limit boss (106).
2. A hob type fishing net rope winding prevention device for a hull tail according to claim 1, characterized in that: the first sliding groove (501) protrudes outwards from the side wall of the lower cover (101), the bottom of the side face of the upper cover (102) corresponding to the first sliding groove (501) is inwards bent to form a structure matched with the first sliding groove (501), the height of the upper cover (102) is equal to the distance between the first sliding groove (501) and the upper end of the lower cover (101), and the width of the upper cover (102) is equal to the distance between the two first sliding grooves (501).
3. A hob type fishing net rope winding prevention device for a hull tail according to claim 2, characterized in that: the included angle between the slope groove (503) and the first sliding groove (501) is 30-45 degrees.
4. A hob type fishing net rope winding prevention device for a hull tail according to claim 1, characterized in that: the cutter (2) comprises a hob (201), the radius of the section of the hob (201) is larger than the distance between the second chute (502) and the upper cover (102), and the diameter of the section of the hob (201) is smaller than the distance between the second chute (502) and the upper cover (102); the circle centers of two ends of the hob (201) are respectively provided with a hob shaft (202) connected with the elastic component (4), and the hob shafts (202) are sleeved with bearings (203) matched with the first sliding grooves (501).
5. A hob type fishing net rope winding prevention device for a hull tail according to claim 4, characterized in that: the elastic assembly (4) comprises an elastic rod (401) connected between the hob shaft (202) and the upper cover (102).
6. A hob type fishing net rope winding prevention device for a hull tail according to claim 5, characterized in that: the included angle between the cutting edge of the hob (201) and the axis of the hob shaft (202) is 15-45 degrees.
7. A hob type fishing net rope winding prevention device for a hull tail according to claim 1, characterized in that: the reset assembly (6) comprises a boss (601) arranged in the lower cover (101), a plurality of elastic springs (602) connected with the inner wall of the upper cover (102) are arranged on the boss (601), and the elastic springs (602) are arranged along the rotation direction of the tail shaft (3) of the ship body.
8. A hob type fishing net rope winding prevention device for a hull tail according to claim 1, characterized in that: the lower cover (101) is provided with a cover body (104) matched with the cutter opening (103).
CN201810444157.1A 2018-05-10 2018-05-10 Hobbing cutter type fishing net rope winding preventing device for tail part of ship body Active CN108423149B (en)

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CN108423149B true CN108423149B (en) 2023-12-19

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CN109305314B (en) * 2018-08-24 2020-08-18 中国人民解放军陆军军事交通学院镇江校区 Anti-winding device for propeller of unmanned ship
CN109367748B (en) * 2018-11-28 2023-11-03 大连英蕴科技有限公司 Ship propeller and method
CN110040232A (en) * 2019-04-10 2019-07-23 中国人民解放军陆军军事交通学院镇江校区 A kind of propeller for vessels anti-wrap device
CN110203369B (en) * 2019-06-14 2021-03-19 上海外高桥造船有限公司 Ship stern post rope-proof cover assembly
CN111252226B (en) * 2020-03-17 2021-02-05 涡阳县信隆船舶附件有限公司 Antiwind device for ship shaft
CN116573128B (en) * 2023-07-14 2023-09-19 山东省水利科学研究院 Ship propeller propulsion mechanism with foreign matter winding prevention function

Citations (8)

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Publication number Priority date Publication date Assignee Title
US4180368A (en) * 1978-02-16 1979-12-25 Outboard Marine Corporation Marine propeller fish line and weed cutter
US5017167A (en) * 1990-07-11 1991-05-21 Govan Donald T Line and weed cutter
CN205812792U (en) * 2016-07-20 2016-12-21 杨静怡 Scalable gardens cutter for mower
CN107140164A (en) * 2017-05-09 2017-09-08 浙江省海洋水产研究所 The instant sewage disposal apparatus of propeller for vessels propeller
CN107617753A (en) * 2017-10-23 2018-01-23 魏斌达 A kind of cutting tool of fine-tuning cutting diameter
CN107926917A (en) * 2018-01-15 2018-04-20 怡天技动力机械研发(临沂)有限公司 Grass trimmer rotary cutter and the portable grass trimmer using the instrument
CN107980284A (en) * 2017-11-30 2018-05-04 重庆市长寿区富茜农业开发有限公司 Multi-functional automatic sowing device
CN208198795U (en) * 2018-05-10 2018-12-07 中国外运长航集团有限公司 A kind of anti-fishing net rope wind of hob type for hull tail portion

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180368A (en) * 1978-02-16 1979-12-25 Outboard Marine Corporation Marine propeller fish line and weed cutter
US5017167A (en) * 1990-07-11 1991-05-21 Govan Donald T Line and weed cutter
CN205812792U (en) * 2016-07-20 2016-12-21 杨静怡 Scalable gardens cutter for mower
CN107140164A (en) * 2017-05-09 2017-09-08 浙江省海洋水产研究所 The instant sewage disposal apparatus of propeller for vessels propeller
CN107617753A (en) * 2017-10-23 2018-01-23 魏斌达 A kind of cutting tool of fine-tuning cutting diameter
CN107980284A (en) * 2017-11-30 2018-05-04 重庆市长寿区富茜农业开发有限公司 Multi-functional automatic sowing device
CN107926917A (en) * 2018-01-15 2018-04-20 怡天技动力机械研发(临沂)有限公司 Grass trimmer rotary cutter and the portable grass trimmer using the instrument
CN208198795U (en) * 2018-05-10 2018-12-07 中国外运长航集团有限公司 A kind of anti-fishing net rope wind of hob type for hull tail portion

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