CN104002928A - Transmission structure of lifeboat gear-type safety hook - Google Patents
Transmission structure of lifeboat gear-type safety hook Download PDFInfo
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- CN104002928A CN104002928A CN201410198858.3A CN201410198858A CN104002928A CN 104002928 A CN104002928 A CN 104002928A CN 201410198858 A CN201410198858 A CN 201410198858A CN 104002928 A CN104002928 A CN 104002928A
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- gear
- transmission device
- type safety
- safety hook
- locking arm
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Abstract
The invention relates to a transmission structure of a lifeboat gear-type safety hook. The structure is characterized by comprising a first transmission mechanism (2), a second transmission mechanism (3) and a locking mechanism (4). The second transmission mechanism drives the locking mechanism to lock and unlock a main hook, and the position of the second transmission mechanism is kept due to sustaining force of a control rod on the first transmission mechanism. Accordingly, the transmission structure of the lifeboat gear-type safety hook has the advantages of being quick to brake and high in safety performance.
Description
Technical field
The present invention relates to a kind of drive mechanism of life boat gear type safety hook.
Background technology
Life boat safety hook is mainly used in the lifting of life boat, and the effect that fast and safely discharges of when escape.
Common life boat safety hook slipper contacts with suspension hook as the single way of contact, be generally that cambered surface contacts with cambered surface or plane contacts with cambered surface with plane contact or plane, the tolerance in the hole of this kind of lifeboat releasing hook generation is excessive, and the tolerance in the hole producing after long-time use is larger, life boat safety hook, in the time lifting by crane or discharge fast, can bring potential safety hazard; Common life boat safety hook, in the time that unexpected fracture appears in slipper, can lose the effect of braking.
Therefore seek a kind of drive mechanism of braking the life boat gear type safety hook fast, safety performance is high particularly important.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of drive mechanism of braking the life boat gear type safety hook fast, safety performance is high is provided.
The object of the present invention is achieved like this:
A drive mechanism for life boat gear type safety hook, it comprises the first transmission device, the second transmission device and catch gear;
Described the first transmission device comprises the first turning cylinder, on the first turning cylinder, be disposed with from front to back indicator collet, the first swivel arm, the first transmission gear, cam and axle sleeve, on the first swivel arm, be extended with backward drive link, the outer end of the first swivel arm is hinged with a control stalk downwards, the lower end connecting fluid pressing system of control stalk, the outer rim of cam is provided with two gradually open surfaces;
Described the second transmission device is positioned at the left of the first transmission device, described the second transmission device comprises the second turning cylinder, on described the second turning cylinder, be disposed with from front to back rolling disc, the second transmission gear, the second swivel arm and manual nut, the front surface of described rolling disc is provided with arc track, described rolling disc by drive link the motion in arc track rotate, the second transmission gear engages with the first transmission gear;
Described catch gear is positioned at the top of the second transmission device, and described catch gear comprises locking bearing pin and locking arm, and the left end of described locking arm is sheathed on locking bearing pin, and described locking arm coordinates rotation with the second swivel arm;
The middle part of described locking arm is upwards provided with a upper fixture block, and the right-hand member of described locking arm is to being arranged with a lower fixture block.
The below of described locking arm is provided with locking arm position-limited lever.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention drives catch gear main hoisting hook to be locked and release action by the second transmission device, maintain the position of the second transmission device by the vitality of control stalk on the first transmission device, only need drive control stalk can realize locking and the release of life boat gear type safety hook by controlling hydraulic efficiency pressure system; And the two states of first transmission device and the second transmission device is while switching, engage with the first transmission gear by the second transmission gear and two of cam gradually open surface with the coordinating of periphery of rolling disc possess higher safety performance.Therefore the drive mechanism of this life boat gear type safety hook possesses the advantage that braking is fast, safety performance is high.
Brief description of the drawings
Fig. 1 is the three-dimensional exploded view of life boat gear type safety hook.
Fig. 2 is the left view after life boat gear type safety hook is assembled under locking state.
Fig. 3 is the front elevation after life boat gear type safety hook is assembled under locking state.
Fig. 4 is the back view after life boat gear type safety hook is assembled under locking state.
Fig. 5 is the birds-eye view after life boat gear type safety hook is assembled under locking state.
Fig. 6 is the A-A cutaway view of Fig. 5.
Fig. 7 is the B-B cutaway view of Fig. 5.
Fig. 8 is the C-C cutaway view of Fig. 5.
Fig. 9 is the left view after life boat gear type safety hook is assembled under released state.
Figure 10 is the front elevation after life boat gear type safety hook is assembled under released state.
Figure 11 is the back view after life boat gear type safety hook is assembled under released state.
Figure 12 is the birds-eye view after life boat gear type safety hook is assembled under released state.
Figure 13 is the D-D cutaway view of Figure 12.
Figure 14 is the E-E cutaway view of Figure 12.
Figure 15 is the F-F cutaway view of Figure 12.
Figure 16 is the block diagram of the first transmission device.
Figure 17 is the block diagram of the second transmission device.
Figure 18 is the block diagram of catch gear.
Wherein:
Framework 1, header board 1.1, rear plate 1.2, case 1.3
The first transmission device 2, the first turning cylinder 2.1, indicator collet 2.2, the first swivel arm 2.3, cam 2.4, axle sleeve 2.5, drive link 2.6, control stalk 2.7, the first transmission gear 2.8
The second transmission device 3, the second turning cylinder 3.1, rolling disc 3.2, arc track 3.2.1, the second swivel arm 3.3, manual nut 3.4, the second transmission gear 3.5
Catch gear 4, locking bearing pin 4.1, locking arm 4.2, upper fixture block 4.2.1, lower fixture block 4.2.2, locking arm position-limited lever 4.3
Main hoisting hook 5
Secondary suspension hook 6
Escapement 7.
Detailed description of the invention
Referring to Fig. 1 ~ Figure 18, a kind of life boat gear type safety hook, it comprises framework 1, the first transmission device 2, the second transmission device 3, catch gear 4, main hoisting hook 5, secondary suspension hook 6 and escapement 7.
The first transmission device 2, the second transmission device 3, catch gear 4, main hoisting hook 5, secondary suspension hook 6 and escapement 7 are arranged on framework 1, External Force Acting is passed to catch gear 4 by the second transmission device 3 main hoisting hook 5 is locked on the first transmission device 2, and escapement 7 is for preventing shirking of rope on main hoisting hook 5.
A drive mechanism for life boat gear type safety hook, it comprises the first transmission device 2, the second transmission device 3 and catch gear 4.
Framework 1 comprises header board 1.1, rear plate 1.2 and is positioned at the case 1.3 of header board 1.1 and rear plate 1.2 peripheries, the epimere of framework 1 is the lifting segment that connects rope, the hypomere of framework 1 is the construction section for connecting life boat, and the front surface of case 1.3 is provided with the cue mark of " lock " and " unlock ".
Described the first transmission device 2 comprises the first turning cylinder 2.1 that runs through header board 1.1 and rear plate 1.2, on the first turning cylinder 2.1, be disposed with from front to back indicator collet 2.2, the first swivel arm 2.3, cam 2.4, the first transmission gear 2.8 and axle sleeve 2.5, indicator collet 2.2 is positioned at the case 1.3 in the front of header board 1.1, the first swivel arm 2.3, cam 2.4 and the first transmission gear 2.8 are between header board 1.1 and rear plate 1.2, axle sleeve 2.5 is positioned at rear plate 1.2 rears, on the first swivel arm 2.3, be extended with backward drive link 2.6, the outer end of the first swivel arm 2.3 is hinged with a control stalk 2.7 downwards, the lower end connecting fluid pressing system of control stalk 2.7, the outer rim of cam 2.4 is provided with two gradually open surfaces, two gradually open surface comprise gradually open surface and under open surface gradually.
Described the second transmission device 3 is positioned at the left of the first transmission device 2, described the second transmission device 3 comprises the second turning cylinder 3.1 that runs through header board 1.1 and rear plate 1.2, on described the second turning cylinder 3.1, be disposed with from front to back rolling disc 3.2, the second transmission gear 3.5, the second swivel arm 3.3 and manual nut 3.4, rolling disc 3.2 and the second swivel arm 3.3 are between header board 1.1 and rear plate 1.2, manual nut 3.4 is positioned at rear plate 1.2 rears, the front surface of described rolling disc 3.2 is provided with arc track 3.2.1, described rolling disc 3.2 can rotate by drive link 2.6 in the motion in arc track 3.2.1, the second transmission gear 3.5 engages with the first transmission gear 2.8, the first turning cylinder 2.1 and the second turning cylinder 3.1 contrarotations.
Described catch gear 4 is positioned at the top of the second transmission device 3, described catch gear 4 comprises the locking bearing pin 4.1 and the locking arm 4.2 that are connected between header board 1.1 and rear plate 1.2, the left end of described locking arm 4.2 is sheathed on locking bearing pin 4.1, the middle part of described locking arm 4.2 is upwards provided with a upper fixture block 4.2.1, the right-hand member of described locking arm 4.2 is to being arranged with a lower fixture block 4.2.2, and described lower fixture block 4.2.2 coordinates rotation with the second swivel arm 3.3.The below of locking arm 4.2 is provided with locking arm position-limited lever 4.3.
Principle of work:
1, life boat gear type safety hook is in locking state:
Referring to Fig. 2-Fig. 8, when lifting, with hand rotation manual nut 3.4, the second swivel arm 3.3 on the second turning cylinder 3.1 makes catch gear 4 in locked position, main hoisting hook 5 is under the effect of rope tensile force f 1, and in vertical operating mode, the lower surface of main hoisting hook 5 contacts with the upper fixture block 4.2.1 on locking arm 4.2, at this moment, main hoisting hook 5 arm 4.2 that is locked blocks.Control stalk 2.7 is connected with hydraulic efficiency pressure system, control stalk 2.7 is subject to downward tensile force f 2, control stalk 2.7 drives the first swivel arm 2.3 to make the first turning cylinder 2.1 rotate 27.5 degree, arrow points letter mark " lock " on indicator collet 2.2, drive link 2.6 can move along the arc orbit 3.2.1 of rolling disc 3.2, meanwhile, the first transmission gear 2.8(rotates counterclockwise) drive the second transmission gear 3.5(to clockwise rotate) contrarotation, play a part locking.At this moment, the upper involute surface on cam 2.6 contacts with rolling disc 3.2 outer round surface gradually, and increases gradually wedging power and friction force, so that life boat gear type safety hook is in two security insurance situations.
2, life boat gear type safety hook is in released state:
Referring to Fig. 9-Figure 15, after crane lifting service finishes, to discharge in time rope, control stalk 2.7 is subject to thrust F3 upwards, it makes the first turning cylinder 2.1 clockwise rotate 27.5 degree, arrow points letter mark " unlock " on indicator collet 2.2, drive link 2.6 departs from the arc orbit 3.2.1 of rolling disc 3.2, rolling disc 3.2 rotates 90 while spending, simultaneously, the first transmission gear 2.8(clockwise rotates) drive the second transmission gear 3.5(to rotate counterclockwise) contrarotation, the second turning cylinder 3.1 also rotates 90 degree, locking arm 4.2 can clockwise rotate approximately 15 degree, and contact with the second turning cylinder 3.1.Because locking arm 4.2 has clockwise rotated 15 degree, main hoisting hook 5 under external force, can rotate counterclockwise 60 degree left and right, and rope departs from.The second turning cylinder 3.1 can only rotate 90 degree, this be due to, when the second turning cylinder 3.1 turns to 90 while spending, the lower involute surface on cam 2.4 can contact with the periphery of rolling disc 3.2 gradually, and two surperficial friction force are rotated further prevention the second turning cylinder 3.1.
Claims (3)
1. a drive mechanism for life boat gear type safety hook, is characterized in that it comprises the first transmission device (2), the second transmission device (3) and catch gear (4),
Described the first transmission device (2) comprises the first turning cylinder (2.1), on the first turning cylinder (2.1), be disposed with from front to back indicator collet (2.2), the first swivel arm (2.3), the first transmission gear (2.8), cam (2.4) and axle sleeve (2.5), on the first swivel arm (2.3), be extended with backward drive link (2.6), the outer end of the first swivel arm (2.3) is hinged with a control stalk (2.7) downwards, the lower end connecting fluid pressing system of control stalk (2.7), the outer rim of cam (2.4) is provided with two gradually open surfaces;
Described the second transmission device (3) is positioned at the left of the first transmission device (2), described the second transmission device (3) comprises the second turning cylinder (3.1), on described the second turning cylinder (3.1), be disposed with from front to back rolling disc (3.2), the second transmission gear (3.5), the second swivel arm (3.3) and manual nut (3.4), the front surface of described rolling disc (3.2) is provided with arc track (3.2.1), described rolling disc (3.2) by drive link (2.6) motion in arc track (3.2.1) rotate, the second transmission gear (3.5) engages with the first transmission gear (2.8),
Described catch gear (4) is positioned at the top of the second transmission device (3), described catch gear (4) comprises locking bearing pin (4.1) and locking arm (4.2), it is upper that the left end of described locking arm (4.2) is sheathed on locking bearing pin (4.1), and described locking arm (4.2) coordinates rotation with the second swivel arm (3.3).
2. the drive mechanism of a kind of life boat gear type safety hook according to claim 1, the middle part that it is characterized in that described locking arm (4.2) is upwards provided with a upper fixture block (4.2.1), and the right-hand member of described locking arm (4.2) is to being arranged with a lower fixture block (4.2.2).
3. the drive mechanism of a kind of life boat gear type safety hook according to claim 1 and 2, is characterized in that the below of described locking arm (4.2) is provided with locking arm position-limited lever (4.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198858.3A CN104002928B (en) | 2014-05-12 | 2014-05-12 | The drive mechanism of lifeboat gear type safety hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198858.3A CN104002928B (en) | 2014-05-12 | 2014-05-12 | The drive mechanism of lifeboat gear type safety hook |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104002928A true CN104002928A (en) | 2014-08-27 |
| CN104002928B CN104002928B (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410198858.3A Expired - Fee Related CN104002928B (en) | 2014-05-12 | 2014-05-12 | The drive mechanism of lifeboat gear type safety hook |
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| Country | Link |
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| CN (1) | CN104002928B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191027179A (en) * | 1910-11-22 | 1911-08-10 | David Senacol | Improvements in Life-boat Releasing Appliances. |
| GB119026A (en) * | 1917-09-14 | 1919-03-27 | James Bowditch | Improvements in Boat-dropping Gear. |
| EP1777152A1 (en) * | 2005-10-20 | 2007-04-25 | Dimitrios Arapogiannis | Quick release, remote and retrievable mooring arrangement |
| CN101541632A (en) * | 2006-10-05 | 2009-09-23 | 救生系统国际公司 | Lifeboat suspension systems |
| CN201951682U (en) * | 2009-09-01 | 2011-08-31 | 挪赛夫公司 | Safe suspension hook assembly, suspension system equipped with safe suspension hook assembly and lifeboat suspension system for releasing safe suspension hook assembly |
| CN203127103U (en) * | 2012-12-24 | 2013-08-14 | 江阴市北海救生设备有限公司 | Lifting hook used for lifeboat |
| CN103303786A (en) * | 2013-06-14 | 2013-09-18 | 大连华锐重工集团股份有限公司 | Self-locking and self-unlocking type hanging hook device for replacing fan-shaped section |
-
2014
- 2014-05-12 CN CN201410198858.3A patent/CN104002928B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191027179A (en) * | 1910-11-22 | 1911-08-10 | David Senacol | Improvements in Life-boat Releasing Appliances. |
| GB119026A (en) * | 1917-09-14 | 1919-03-27 | James Bowditch | Improvements in Boat-dropping Gear. |
| EP1777152A1 (en) * | 2005-10-20 | 2007-04-25 | Dimitrios Arapogiannis | Quick release, remote and retrievable mooring arrangement |
| CN101541632A (en) * | 2006-10-05 | 2009-09-23 | 救生系统国际公司 | Lifeboat suspension systems |
| CN201951682U (en) * | 2009-09-01 | 2011-08-31 | 挪赛夫公司 | Safe suspension hook assembly, suspension system equipped with safe suspension hook assembly and lifeboat suspension system for releasing safe suspension hook assembly |
| CN203127103U (en) * | 2012-12-24 | 2013-08-14 | 江阴市北海救生设备有限公司 | Lifting hook used for lifeboat |
| CN103303786A (en) * | 2013-06-14 | 2013-09-18 | 大连华锐重工集团股份有限公司 | Self-locking and self-unlocking type hanging hook device for replacing fan-shaped section |
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| Publication number | Publication date |
|---|---|
| CN104002928B (en) | 2016-06-29 |
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