CN112407155A - A double-parallelogram four-bar linkage small boat retracting device and using method thereof - Google Patents
A double-parallelogram four-bar linkage small boat retracting device and using method thereof Download PDFInfo
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- CN112407155A CN112407155A CN202011428860.7A CN202011428860A CN112407155A CN 112407155 A CN112407155 A CN 112407155A CN 202011428860 A CN202011428860 A CN 202011428860A CN 112407155 A CN112407155 A CN 112407155A
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- 230000002452 interceptive effect Effects 0.000 abstract description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B23/00—Equipment for handling lifeboats or the like
- B63B23/02—Davits, i.e. devices having arms for lowering boats by cables or the like
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Abstract
本发明提供一种双平行四边形四连杆机构小艇收放装置及其使用方法，包括设置在船体上的平行四连杆收放机构，平行四连杆收放机构包括连杆一、吊臂一、连杆二和吊臂二，连杆一和吊臂一左侧转动铰接有卡座，连杆一和吊臂一的右侧转动铰接有中间连接座，中间连接座和吊臂一之间设置有液压杆一，中间连接座的下侧转动铰接有连杆二和吊臂二，连杆二吊臂二的左侧转动铰接有吊臂基座，吊臂基座和吊臂二之间设置有液压杆二，解决了原有收放装置受船体空间限制，无法额外布置其它常规形式小艇收放装置的问题，本发明结构合理，利用两个与吊臂平行的连杆，通过两只完全一样的油缸同步推动，两个吊臂始终保持对称状态，能水平地将小艇直线推出舷外，不会与船体结构干涉。
The invention provides a double-parallelogram four-bar linkage small boat retracting device and a method of using the same, including a parallel four-bar retracting mechanism arranged on the hull, and the parallel four-bar retracting mechanism comprises a connecting rod 1 and a boom. 1. Connecting rod 2 and boom 2, connecting rod 1 and jib 1 are pivotally hinged on the left side with a card seat, connecting rod 1 and boom 1 are pivotally hinged on the right side with a middle connecting seat, and one of the middle connecting seat and jib 1 A hydraulic rod 1 is arranged between the two, the lower side of the middle connecting seat is pivotally connected with the second connecting rod and the second boom, and the left side of the second connecting rod and the second boom is pivotally connected with the boom base, and the boom base and the second boom are hinged. Two hydraulic rods are arranged between the two, which solves the problem that the original retractable device is limited by the hull space and cannot be additionally arranged with other conventional small boat retractable devices. Two identical oil cylinders are driven synchronously, and the two booms are always in a symmetrical state, which can horizontally push the boat out of the outboard in a straight line without interfering with the hull structure.
Description
Technical Field
The invention discloses a double-parallelogram four-link mechanism boat take-up and pay-off device and a using method thereof, belonging to the technical field of ship manufacturing.
Background
From the change of China shipbuilding industry in the share of the world shipbuilding market in the last decade, the proportion of the China shipbuilding industry in the global market is obviously rising, and China becomes one of the globally important shipbuilding centers.
Due to the limitation of the space of the ship body, the space size of a part of cabin of the ship is narrow and is only slightly larger than the overall size of the matched boat, and other boat retraction devices in conventional forms cannot be additionally arranged. In view of the above, a new boat stowing device is needed to solve the above problems.
Disclosure of Invention
The boat retraction device is reasonable in structure, two connecting rods parallel to the suspension arms are utilized, the two connecting rods are synchronously pushed by two identical oil cylinders, the two suspension arms are always kept in a symmetrical state, and the boat can be horizontally pushed out of the ship straight line without interfering with a hull structure.
In order to achieve the purpose, the invention is realized by the following technical scheme: a boat retraction device with a double parallelogram four-bar linkage mechanism comprises a parallel four-bar linkage retraction mechanism arranged on a boat body, wherein a supporting base for supporting the parallel four-bar linkage retraction mechanism is arranged on the boat body;
the parallel four-connecting-rod retracting mechanism comprises a first connecting rod, a first suspension arm, a second connecting rod and a second suspension arm, wherein the first connecting rod and the first suspension arm are hinged to a clamping seat in a rotating mode on the left side, the first connecting rod and the first suspension arm are hinged to an intermediate connecting seat in a rotating mode on the right side, a first hydraulic rod is arranged between the intermediate connecting seat and the first suspension arm, the second connecting rod and the second suspension arm are hinged to the lower side of the intermediate connecting seat in a rotating mode, a second suspension arm base is hinged to the left side of the second suspension arm of the second connecting rod in.
Furthermore, the first connecting rod, the second connecting rod, the first suspension arm and the second suspension arm are all the same in length, the first connecting rod and the first suspension arm are parallel to each other, and the second connecting rod and the second suspension arm are parallel to each other.
Further, the middle connecting seat is of an isosceles trapezoid structure.
Furthermore, a clamping pin is arranged on the supporting base, a clamping opening is formed in the left side of the clamping base, and the clamping pin is matched with the clamping opening.
Furthermore, the first hydraulic rod and the second hydraulic rod are the same in specification, and the first hydraulic rod and the second hydraulic rod are connected with the same external source hydraulic system through hydraulic conduits.
Furthermore, hinges are arranged at two ends of the first hydraulic rod and the second hydraulic rod, the middle connecting seat and the first suspension arm are connected with the first hydraulic rod through the hinges, and the suspension arm base and the second suspension arm are connected with the second hydraulic rod through the hinges.
Furthermore, a triangular structure enclosed among the hydraulic rod I, the suspension arm I and the middle connecting seat is the same as a triangular structure enclosed among the hydraulic rod II, the suspension arm II and the mounting seat.
Further, the invention provides a using method of the double-parallelogram four-bar mechanism boat launching and retracting device, which comprises the following steps:
step one, installing a retraction device: the suspension arm base is arranged at a designated position, and the bayonet on the clamping seat is clamped with the bayonet lock on the supporting base, so that the ship body and the clamping seat are relatively and fixedly arranged;
step two, a double-parallelogram structure: one group of parallelogram consists of a suspension arm base, a suspension arm I, a connecting rod I and an intermediate connecting seat, wherein the suspension arm I has the same length as and is parallel to the connecting rod I, the other group of parallelogram consists of a clamping seat, a suspension arm II, a connecting rod II and an intermediate connecting seat, and the suspension arm II has the same length as and is parallel to the connecting rod II;
step three, a double-oil-cylinder structure: because the triangular structure enclosed among the hydraulic rod I, the suspension arm I and the middle connecting seat is the same as the triangular structure enclosed among the hydraulic rod II, the suspension arm II and the mounting seat, when the hydraulic rod I and the hydraulic rod II are connected with an external source hydraulic system, the movement of the suspension arm I and the suspension arm II is symmetrical about the middle connecting seat according to the geometric principle;
step four, the double oil cylinders stretch and move: the first hydraulic rod and the second hydraulic rod are connected with the same external source hydraulic system through hydraulic conduits, when the hydraulic system supplies oil to two identical oil cylinders at the same time, the extension amounts of the two oil cylinders are equal at any moment theoretically, and in the two parallelogram structures in the step two, as the first suspension arm and the second suspension arm move symmetrically relative to the middle connecting seat, the movement tracks of the clamping seat and the mounting seat are on the same straight line.
The invention has the beneficial effects that: the invention utilizes two connecting rods parallel to the suspension arms to form a parallelogram, the two suspension arms are synchronously pushed by two identical oil cylinders, the two suspension arms are always kept in a symmetrical state, and the clamping seat and the suspension arm base are always on the same vertical line, so that the motion trail of the lifting point of the retraction device is ensured to be a straight line, and the boat can be horizontally pushed out of a ship board without interfering with a hull structure.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the overall structure of a double parallelogram four-bar linkage boat stowing and releasing device of the invention;
FIG. 2 is a schematic structural diagram of a boat retraction device with a double parallelogram four-bar linkage mechanism according to the present invention;
in the figure: the ship comprises a ship body 1, a supporting base 2, a parallel four-bar linkage retracting mechanism 3, a clamping seat 31, a first 32-bar linkage, a first 33-boom, a first 34-hydraulic rod, a middle connecting seat 35, a second 36-bar linkage, a second 37-boom, a second 38-hydraulic rod and a second 39-boom base.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-2, the present invention provides a technical solution: a double-parallelogram four-bar mechanism boat retraction device comprises a parallel four-bar mechanism retraction mechanism 3 arranged on a boat body 1, wherein a supporting base 2 for supporting the parallel four-bar mechanism retraction mechanism 3 is arranged on the boat body 1;
the parallel four-bar linkage retraction mechanism 3 comprises a first connecting bar 32, a first suspension arm 33, a second connecting bar 36 and a second suspension arm 37, wherein the left sides of the first connecting bar 32 and the first suspension arm 33 are rotatably hinged with a clamping seat 31, the right sides of the first connecting bar 32 and the first suspension arm 33 are rotatably hinged with an intermediate connecting seat 35, a first hydraulic rod 34 is arranged between the intermediate connecting seat 35 and the first suspension arm 33, the lower side of the intermediate connecting seat 35 is rotatably hinged with a second connecting bar 36 and a second suspension arm 37, the left side of the second suspension arm 37 of the second connecting bar 36 is rotatably hinged with a suspension arm base 39, and a second hydraulic rod 38 is arranged between the suspension arm base 39 and the second suspension arm 37, so that the problem that the original retraction device is limited.
The specific working principle is as follows: the suspension arm base 39 is arranged at a designated position, and the clamping seat 31 is clamped with a clamping pin on the supporting base 2; the first connecting rod 32 and the first suspension arm 33 are equal and parallel in length, the second connecting rod 36 and the second suspension arm 37 are equal and parallel in length, and because the left and right ends of the first connecting rod 32 and the first suspension arm 33 are respectively hinged with the clamping seat 31 and the middle connecting seat 35, when the first connecting rod 32 and the first suspension arm 33 move, the clamping seat 31 and the middle connecting seat 35 are always kept parallel in the vertical direction; similarly, the left ends and the right ends of the second connecting rod 36 and the second suspension arm 37 are respectively hinged with the suspension arm base 39 and the middle connecting seat 35, so that the suspension arm base 39 and the middle connecting seat 35 are always kept parallel in the vertical direction; based on the fact that the lengths of the first connecting rod 32, the second connecting rod 36, the first suspension arm 33 and the second suspension arm 37 are the same, the clamping seat 31 and the suspension arm base 39 are always on the same vertical line; the first hydraulic rod 34 and the second hydraulic rod 38 are connected with the same external source hydraulic system to drive the first boom 33 and the second boom 37 to clamp and open, so that the distance between the clamp seat 31 and the boom base 39 is controlled; this enables the hull 1 to be pushed straight out of the board or retracted into the hull 1 horizontally.
The length of the first connecting rod 32, the second connecting rod 36, the first suspension arm 33 and the second suspension arm 37 is the same, the first connecting rod 32 and the first suspension arm 33 are parallel to each other, the second connecting rod 36 and the second suspension arm 37 are parallel to each other, the middle connecting seat 35 is in an isosceles trapezoid structure, and the first suspension arm 33 and the second suspension arm 37 are symmetrically opened and closed relative to the middle connecting seat 35 by utilizing a lever principle.
A clamping pin is arranged on the supporting base 2, a clamping opening is formed in the left side of the clamping seat 31, and the clamping pin is matched with the clamping opening and used for tightly clamping the clamping seat 31 and the ship body 1.
The first hydraulic rod 34 and the second hydraulic rod 38 have the same specification, the first hydraulic rod 34 and the second hydraulic rod 38 are connected with the same external source hydraulic system through hydraulic conduits, and the first hydraulic rod 34 and the second hydraulic rod 38 extend synchronously, so that the clamping seat 31, the middle connecting seat 35 and the suspension arm base 39 are always kept parallel in the vertical direction, and the ship body 1 can be pushed out of a ship board linearly in a horizontal manner.
Two ends of a first hydraulic rod 34 and a second hydraulic rod 38 of the invention are respectively provided with a hinge, an intermediate connecting seat 35 and a first suspension arm 33 are connected with the first hydraulic rod 34 through the hinge, and a base 39 of the suspension arm is connected with the second suspension arm 37 through the hinge and the second hydraulic rod 38, thereby ensuring the flexible hinging effect of the first hydraulic rod 34 and the second hydraulic rod 38.
In addition, the invention provides a using method of the double-parallelogram four-bar mechanism boat launching and retracting device, which comprises the following steps:
step one, installing a retraction device: the suspension arm base 39 is arranged at a designated position, and the bayonet on the clamping seat 31 is clamped with the bayonet on the supporting base 2, so that the ship body 1 and the clamping seat 31 are relatively and fixedly arranged;
step two, a double-parallelogram structure: one group of parallelogram consists of a suspension arm base 39, a first suspension arm 33, a first connecting rod 32 and an intermediate connecting seat 35, wherein the first suspension arm 33 and the first connecting rod 32 have the same length and are parallel, the other group of parallelogram consists of a clamping seat 31, a second suspension arm 37, a second connecting rod 36 and the intermediate connecting seat 35, and the second suspension arm 37 and the second connecting rod 36 have the same length and are parallel;
step three, a double-oil-cylinder structure: because the triangular structure enclosed among the hydraulic rod I34, the suspension arm I33 and the intermediate connecting seat 35 is the same as the triangular structure enclosed among the hydraulic rod II 38, the suspension arm II 37 and the mounting seat, when the hydraulic rod I34 and the hydraulic rod II 38 are connected with an external source hydraulic system, the movement of the suspension arm I33 and the suspension arm II 37 is symmetrical about the intermediate connecting seat 35 according to the geometric principle;
step four, the double oil cylinders stretch and move: the first hydraulic rod 34 and the second hydraulic rod 38 are connected with the same external source hydraulic system through hydraulic conduits, when the hydraulic system supplies oil to two identical oil cylinders at the same time, theoretically, the extension amounts of the two oil cylinders are equal at any moment, and in the two parallelogram structures in the second step, as the first suspension arm 33 and the second suspension arm 37 move symmetrically relative to the middle connecting seat 35, the movement tracks of the clamping seat 31 and the mounting seat are on the same straight line.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011428860.7A CN112407155A (en) | 2020-12-09 | 2020-12-09 | A double-parallelogram four-bar linkage small boat retracting device and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011428860.7A CN112407155A (en) | 2020-12-09 | 2020-12-09 | A double-parallelogram four-bar linkage small boat retracting device and using method thereof |
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| CN112407155A true CN112407155A (en) | 2021-02-26 |
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| CN202011428860.7A Pending CN112407155A (en) | 2020-12-09 | 2020-12-09 | A double-parallelogram four-bar linkage small boat retracting device and using method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129480A (en) * | 1991-03-21 | 1992-07-14 | Kidde Industries, Inc. | Articulated parallelogram boom assembly synchronization device |
| EP1340711A1 (en) * | 1997-01-31 | 2003-09-03 | Grove U.S. LLC | Lift apparatus having an articulated double parallelogram boom assembly |
| CN201538419U (en) * | 2009-07-17 | 2010-08-04 | 射阳远洋船舶辅机有限公司 | Damping device of fast recovery and launch device for small boats |
| CN102862650A (en) * | 2012-09-21 | 2013-01-09 | 哈尔滨工程大学 | Foldable extensile suspension arm |
| KR101280889B1 (en) * | 2011-12-22 | 2013-07-02 | 삼성중공업 주식회사 | Lifeboat connecting unit and lifeboat davit comprising the same |
| CN104310244A (en) * | 2014-10-10 | 2015-01-28 | 无锡美特船舶设备有限公司 | Horizontal folding suspension arm |
| CN213735435U (en) * | 2020-12-09 | 2021-07-20 | 中船绿洲镇江船舶辅机有限公司 | Double-parallelogram four-bar mechanism boat folding and unfolding device |
-
2020
- 2020-12-09 CN CN202011428860.7A patent/CN112407155A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129480A (en) * | 1991-03-21 | 1992-07-14 | Kidde Industries, Inc. | Articulated parallelogram boom assembly synchronization device |
| EP1340711A1 (en) * | 1997-01-31 | 2003-09-03 | Grove U.S. LLC | Lift apparatus having an articulated double parallelogram boom assembly |
| CN201538419U (en) * | 2009-07-17 | 2010-08-04 | 射阳远洋船舶辅机有限公司 | Damping device of fast recovery and launch device for small boats |
| KR101280889B1 (en) * | 2011-12-22 | 2013-07-02 | 삼성중공업 주식회사 | Lifeboat connecting unit and lifeboat davit comprising the same |
| CN102862650A (en) * | 2012-09-21 | 2013-01-09 | 哈尔滨工程大学 | Foldable extensile suspension arm |
| CN104310244A (en) * | 2014-10-10 | 2015-01-28 | 无锡美特船舶设备有限公司 | Horizontal folding suspension arm |
| CN213735435U (en) * | 2020-12-09 | 2021-07-20 | 中船绿洲镇江船舶辅机有限公司 | Double-parallelogram four-bar mechanism boat folding and unfolding device |
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Application publication date: 20210226 |
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