CN205707171U - There is the self-locking shark jaw of safe spacing feedback - Google Patents
There is the self-locking shark jaw of safe spacing feedback Download PDFInfo
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- CN205707171U CN205707171U CN201620262833.XU CN201620262833U CN205707171U CN 205707171 U CN205707171 U CN 205707171U CN 201620262833 U CN201620262833 U CN 201620262833U CN 205707171 U CN205707171 U CN 205707171U
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- rod
- pawl pincers
- casing
- connecting rod
- master connecting
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Abstract
The utility model discloses a kind of self-locking shark jaw with safe spacing feedback, including casing (1), pawl pincers (2), linkage (3), upset hydraulic jack (4) and lifting pin mechanism (5)；Linkage includes master connecting-rod (31) and slave connecting rod (32), one end of master connecting-rod is hingedly mounted on box house, the other end is articulated and connected with one end of slave connecting rod, the other end of slave connecting rod is articulated and connected with pawl pincers, slave connecting rod and the hinged inner side being centrally located at master connecting-rod and the hinged center of casing and master connecting-rod and the line extended line at the hinged center of slave connecting rod of pawl pincers when the work surface turnover that pawl clamps is risen in vertical state；Range sensor that the Support Position of box house correspondence master connecting-rod or slave connecting rod is additionally provided with or travel switch (11).Originally there is the self-locking shark jaw of safe spacing feedback, it is possible to reliablely and stablely ensure stable and system durability, the safety and reliability being greatly improved in work process during pawl pincers stress.
Description
Technical field
This utility model relates to a kind of shark jaw, the self-locking shark jaw with safe spacing feedback that a kind of ship deck uses, and belongs to ship equipment technical field.
Background technology
Shark jaw formal name used at school clamps hydraulic pressure chain cable retainer or hydraulic pressure cable, is firmly to vise cable wire or anchor chain and can bear the brake of load, and the major function of shark jaw is to hold tightly hawser, steel cable or anchor chain to prevent it from sliding；Shark jaw is typically mounted on aftdeck, acts traction operation rise of casting anchor and holds tightly, falls and keep concordant with deck, keep the unimpeded of deck slideway when not working.
Shark jaw generally has fork structure and link rod structure two kinds, the shark jaw of link rod structure generally has two may only individually overturn flexible pawl pincers, dig during work and anchor chain or cable wire are fixedly clamped between two pawl pincers, the used time does not falls concordant with deck, an ejector pin is had between two pawl pincers, can be by sagging chain cable jack-up to two pincers top, it is simple to disassemble shackle.
The pawl pincers upset of link-type shark jaw pulls linkage to realize typically by the flexible of hydraulic jack, existing link-type shark jaw in working order time rout up pawl pincers generally stress is directly acted on hydraulic jack by linkage, and the uncertain factor of shipping work environment is more, two pawl pincers stress are the most unbalanced, therefore hydraulic system load is bigger, and the lack of uniformity of stress is also easily caused the damage of hydraulic jack, and then making pawl pincers lose efficacy, the safety and reliability in work process is the highest.
Summary of the invention
For the problems referred to above, this utility model provides a kind of self-locking shark jaw with safe spacing feedback, can reliablely and stablely ensure stable and system durability during pawl pincers stress, and then ensure trouble free service and the high capacity support of pawl pincers, thus working environment brings potential danger evade, the safety and reliability being greatly improved in work process.
For achieving the above object, the self-locking shark jaw originally with safe spacing feedback includes casing, pawl pincers, linkage, upset hydraulic jack and lifting pin mechanism, pawl pincers, linkage and upset hydraulic jack are disposed as two pieces and are symmetrical set at box house, and lifting pin mechanism is arranged on box house；
The described pawl pincers sector structure in hollow, a radial location of sector structure is provided with pawl pincers work surface, and the fan-shaped home position of sector structure is arranged on box house by swivel pin, and the axes intersect of the swivel pin of two pieces pawl pincers is arranged；
Described linkage includes master connecting-rod and slave connecting rod, one end of master connecting-rod is hingedly mounted on box house by swivel pin, the other end is articulated and connected by swivel pin with one end of slave connecting rod, the other end of slave connecting rod is articulated and connected by the end of swivel pin with another radial location of described pawl pincers sector structure, and the work surface that pawl clamps turns down the inner side of the line extended line at the hinged hinged center being centrally located at master connecting-rod and the hinged center of casing and master connecting-rod and slave connecting rod of slave connecting rod and pawl pincers when rising in vertical state；
One end of described upset hydraulic jack is hingedly mounted on box house by swivel pin, the other end is hingedly mounted on master connecting-rod by swivel pin；
Described lifting pin mechanism is vertically arranged in the rear of two pieces pawl pincers, including ejector pin and ejector pin jack；
Range sensor or travel switch, range sensor or travel switch that when the work surface turnover of described box house correspondence pawl pincers is risen in vertical state, the Support Position of master connecting-rod or slave connecting rod is additionally provided with electrically connect with hydraulic power unit.
As further improvement of the utility model scheme, the master connecting-rod described in when the work surface turnover of pawl pincers is risen in vertical state and the hinged front being centrally located at master connecting-rod and the hinged center of pawl pincers of casing.
As further improvement of the utility model scheme, described master connecting-rod is provided with locating piece with the articulated position of slave connecting rod.
As a kind of embodiment of the present utility model, the axis of the swivel pin of described two pieces pawl pincers is 90 ° and intersects setting.
As a kind of embodiment of the present utility model, described casing be cross section be the box-structure of isosceles triangle, the described master connecting-rod swivel pin hinged with casing is symmetrically positioned in the waist location of isosceles triangle.
nullCompared with prior art，Originally there is the linkage of self-locking shark jaw of safe spacing feedback owing to including the master connecting-rod and the slave connecting rod that are articulated and connected，And the work surface of pawl pincers turns down and rises the hinged inner side being centrally located at its hinged dead point that during in vertical state, slave connecting rod clamps with pawl，The hinged center moving process that i.e. during upset hydraulic jack retraction, slave connecting rod and pawl clamp is crossed its hinged dead point and is positioned at the inner side formation self-locking at its hinged dead point，Now pawl pincers act on the power on slave connecting rod and make slave connecting rod have the trend that moves of direction promoting master connecting-rod to compression upset hydraulic jack，What i.e. compression upset hydraulic jack was subject to is pressure rather than pulling force，Self-locking structure can reliablely and stablely ensure stable and system durability during pawl pincers stress，Ensure trouble free service and the high capacity support of pawl pincers，Simultaneously avoid compression upset hydraulic jack by pulling force flimsy drawback，And load that the slave connecting rod of self-locking state makes hydraulic system be subject to is less；The range sensor being additionally provided with due to the Support Position of master connecting-rod or slave connecting rod when the work surface turnover of box house correspondence pawl pincers is risen in vertical state or travel switch; after crossing its hinged dead point in slave connecting rod with the hinged center moving process of pawl pincers, range sensor or travel switch i.e. feedback signal make hydraulic power unit control upset hydraulic jack stopping action; therefore can more accurately control the stroke of upset hydraulic jack, and then realize the load that protection overturns hydraulic jack, reduction hydraulic system is subject to further；When arranging, in the articulated position of master connecting-rod with slave connecting rod, the locating piece that slave connecting rod can be carried out location positioning, master connecting-rod forms rigid support with slave connecting rod, the rigid support that can realize linkage bears most pressure, reduction upset hydraulic jack pressure experienced, and then realize reducing the load of hydraulic system further, it is particularly well-suited to the large ship of large-tonnage, high capacity.
Accompanying drawing explanation
Fig. 1 is the three dimensional structure schematic diagram after the pincers turnover of this utility model pawl is risen；
Fig. 2 is that pawl of the present utility model pincers work surface turns down structural representation when rising in vertical state；
Fig. 3 is the A direction view of Fig. 1.
In figure: 1, casing, 11, range sensor or travel switch, 2, pawl pincers, 3, linkage, 31, master connecting-rod, 32, slave connecting rod, 4, upset hydraulic jack, 5, lifting pin mechanism.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further (following description clamps the direction at 2 places as rear with lifting pin mechanism 5 relative to pawl).
As shown in Figure 1, the self-locking shark jaw originally with safe spacing feedback includes casing 1, pawl pincers 2, linkage 3, upset hydraulic jack 4 and lifting pin mechanism 5, pawl pincers 2, linkage 3 and upset hydraulic jack 4 are disposed as two pieces and are symmetrical set inside casing 1, and it is internal that lifting pin mechanism 5 is arranged on casing 1.
Described pawl pincers 2 sector structures in hollow, one radial location of sector structure is provided with pawl pincers work surface, it is internal that the fan-shaped home position of sector structure is arranged on casing 1 by swivel pin, pawl pincers 2 can along swivel pin axle center rotate turnover make pawl pincers 2 pawl pincers work surface turnover rise in vertical state or turnover fall make pawl pincers 2 pawl pincers work surface concordant with the upper surface of casing 1, and two pieces pawl pincers 2 swivel pin axes intersect setting.
As shown in Figure 2, described linkage 3 includes master connecting-rod 31 and slave connecting rod 32, it is internal that one end of master connecting-rod 31 is hingedly mounted on casing 1 by swivel pin, the other end is articulated and connected by swivel pin with one end of slave connecting rod 32, the other end of slave connecting rod 32 is articulated and connected by the end of another radial location that swivel pin clamps 2 sector structures with described pawl, and the work surface turnover of pawl pincers 2 when rising in vertical state slave connecting rod 32 and pawl pincers 2 hinged be centrally located at the inner side of the hinged center of master connecting-rod 31 and casing 1 and master connecting-rod 31 and the line extended line at the hinged center of slave connecting rod 32, i.e. slave connecting rod 32 forms self-locking with the hinged inner side being centrally located at hinged dead point of pawl pincers 2.
One end of described upset hydraulic jack 4 is hingedly mounted on casing 1 inside by swivel pin, the other end is hingedly mounted on master connecting-rod 31 by swivel pin, realizes the pawl pincers 2 axle center rotation turnover along swivel pin by controlling the flexible master connecting-rod 31 tractive slave connecting rod 32 that can realize of upset hydraulic jack 4.
Described lifting pin mechanism 5 is vertically arranged in the rear of two pieces pawl pincers 2, including ejector pin and ejector pin jack, can realize stretching out or retraction of ejector pin by controlling the flexible of ejector pin jack.
The work surface of the internal corresponding pawl pincers 2 of described casing 1 turns down the range sensor or travel switch 11 that when rising in vertical state, the Support Position of master connecting-rod 31 or slave connecting rod 32 is additionally provided with, range sensor or travel switch 11 electrically connect with hydraulic power unit, can realize hydraulic power unit by the signal of range sensor or travel switch 11 feedback and control the action of upset hydraulic jack 4, i.e. after crossing its hinged dead point in slave connecting rod 32 with the hinged center moving process of pawl pincers 2, range sensor or travel switch 11 i.e. feedback signal make hydraulic power unit control upset hydraulic jack 4 stop action.
The self-locking shark jaw originally with safe spacing feedback is arranged on the upper surface of rear box 1 on ship deck concordant with ship deck, when off working state, hydraulic jack 4 is in fully extended state, ejector pin jack is in the state of being entirely retracted in upset, now pawl pincers 2 and the equal retraction of ejector pin are inside casing 1, linkage 3 and upset hydraulic jack 4 are connected in the sector structure that pawl clamps 2 hollows, and the pawl pincers work surface upper surface concordant with the upper surface of casing 1, ejector pin of pawl pincers 2 is concordant with the upper surface of casing 1, it is achieved keep the unimpeded of deck slideway；
nullTime in working order，Upset hydraulic jack 4 retraction，Drive master connecting-rod 31 along its hinged central rotation with casing 1，Master connecting-rod 31 tractive slave connecting rod 32 band pawl pincers 2 make the pawl pincers work surface turnover of pawl pincers 2 rise along its turnover of hinged central rotation with casing 1 simultaneously，Slave connecting rod 32 crosses its hinged dead point in the hinged center moving process of pawl pincers 2，As shown in Figure 3，When master connecting-rod 31 or slave connecting rod 32 are near range sensor or travel switch 11 to setpoint distance, hydraulic power unit controls upset hydraulic jack 4 and stops retraction，Now the pawl pincers work surface of two pieces pawl pincers 2 is in vertically holding state tightly，Slave connecting rod 32 forms self-locking with the hinged inner side being centrally located at hinged dead point of pawl pincers 2，Pawl pincers 2 are now by hawser、The pulling force of steel cable or anchor chain has the trend back turned down，Pawl pincers 2 act on the power on slave connecting rod 32 makes slave connecting rod 32 have the trend promoting master connecting-rod 31 to move to the direction of compression upset hydraulic jack 4，What i.e. compression upset hydraulic jack 4 was subject to is pressure rather than pulling force，Therefore avoid compression upset hydraulic jack 4 by pulling force flimsy drawback，And load that the slave connecting rod 32 of self-locking state makes hydraulic system be subject to is less.
In order to realize the more preferable stress of linkage 3, more firm support effect, as further improvement of the utility model scheme, master connecting-rod 31 described in when the work surface turnover of pawl pincers 2 is risen in vertical state and the hinged front portion being centrally located at master connecting-rod 31 and the hinged center of pawl pincers 2 of casing 1, i.e. master connecting-rod 31 is obliquely installed.
In order to make linkage 3 bear most pressure, reduction upset hydraulic jack 4 pressure experienced, thus reduce the load that hydraulic system is subject to further, as further improvement of the utility model scheme, described master connecting-rod 31 is provided with locating piece with the articulated position of slave connecting rod 32, locating piece makes slave connecting rod 32 be positioned at the position just past hinged dead point and can not be further continued for mobile, thus realizes linkage 3 and bear most pressure, reduction upset hydraulic jack 4 pressure experienced.
As a kind of embodiment of the present utility model, the axis of the swivel pin of described two pieces pawl pincers 2 is 90 ° and intersects setting.
As a kind of embodiment of the present utility model, described casing 1 is the box-structure of isosceles triangle in cross section, and described master connecting-rod 31 swivel pin hinged with casing 1 is symmetrically positioned in the waist location of isosceles triangle.
nullOriginally there is the linkage 3 of self-locking shark jaw of safe spacing feedback owing to including the master connecting-rod 31 and the slave connecting rod 32 that are articulated and connected，And the work surface of pawl pincers 2 turns down and rises slave connecting rod 32 and the hinged inner side being centrally located at its hinged dead point of pawl pincers 2 during in vertical state，The hinged center moving process of slave connecting rod 32 and pawl pincers 2 is i.e. crossed during upset hydraulic jack 4 retraction its hinged dead point and is positioned at the inner side formation self-locking at its hinged dead point，Now pawl pincers 2 act on the power on slave connecting rod 32 and make slave connecting rod 32 have the trend that moves of direction promoting master connecting-rod 31 to compression upset hydraulic jack 4，What i.e. compression upset hydraulic jack 4 was subject to is pressure rather than pulling force，Self-locking structure can reliablely and stablely ensure stablizing and system durability when pawl clamps 2 stress，Ensure trouble free service and the high capacity support of pawl pincers 2，Avoid simultaneously compression upset hydraulic jack 4 by pulling force flimsy drawback，And load that the slave connecting rod 32 of self-locking state makes hydraulic system be subject to is less；The range sensor being additionally provided with due to the Support Position of master connecting-rod 31 or slave connecting rod 32 when the work surface turnover of the internal corresponding pawl pincers 2 of casing 1 is risen in vertical state or travel switch 11; after crossing its hinged dead point in slave connecting rod 32 with the hinged center moving process of pawl pincers 2, range sensor or travel switch 11 i.e. feedback signal make hydraulic power unit control upset hydraulic jack 4 stop action; therefore can more accurately control the stroke of upset hydraulic jack 4, and then realize the load that protection overturns hydraulic jack 4, reduction hydraulic system is subject to further；When arranging, in the articulated position of master connecting-rod 31 with slave connecting rod 32, the locating piece that slave connecting rod 32 can be carried out location positioning, master connecting-rod 31 and slave connecting rod 32 form rigid support, the rigid support that can realize linkage 3 bears most pressure, reduction upset hydraulic jack 4 pressure experienced, and then realize reducing the load of hydraulic system further, it is particularly well-suited to the large ship of large-tonnage, high capacity.
Claims (5)
1. a self-locking shark jaw with safe spacing feedback, including casing (1), pawl pincers (2), linkage (3), upset hydraulic jack (4) and lifting pin mechanism (5), pawl pincers (2), linkage (3) and upset hydraulic jack (4) are disposed as two pieces and are symmetrical set at casing (1) internal, and it is internal that lifting pin mechanism (5) is arranged on casing (1)；Pawl pincers (2) sector structure in hollow, a radial location of sector structure is provided with pawl pincers work surface, and it is internal that the fan-shaped home position of sector structure is arranged on casing (1) by swivel pin, and the axes intersect of the swivel pin of two pieces pawl pincers (2) is arranged；Lifting pin mechanism (5) is vertically arranged in the rear of two pieces pawl pincers (2), including ejector pin and ejector pin jack；It is characterized in that,
Described linkage (3) includes master connecting-rod (31) and slave connecting rod (32), it is internal that one end of master connecting-rod (31) is hingedly mounted on casing (1) by swivel pin, the other end is articulated and connected by swivel pin with the one end of slave connecting rod (32), the other end of slave connecting rod (32) is articulated and connected by the end of swivel pin with another radial location of described pawl pincers (2) sector structure, and the inner side of the hinged hinged center being centrally located at master connecting-rod (31) and casing (1) of the work surface turnover of pawl pincers (2) slave connecting rod (32) and pawl pincers (2) when rising in vertical state and master connecting-rod (31) and the line extended line at the hinged center of slave connecting rod (32)；
One end of described upset hydraulic jack (4) is hingedly mounted on casing (1) inside by swivel pin, the other end is hingedly mounted on master connecting-rod (31) by swivel pin；
Range sensor or travel switch (11), range sensor or travel switch (11) that when the work surface turnover of internal corresponding pawl pincers (2) of described casing (1) is risen in vertical state, the Support Position of master connecting-rod (31) or slave connecting rod (32) is additionally provided with electrically connect with hydraulic power unit.
The self-locking shark jaw with safe spacing feedback the most according to claim 1, it is characterized in that, the master connecting-rod (31) described in when the work surface turnover of pawl pincers (2) is risen in vertical state and the hinged front being centrally located at master connecting-rod (31) and the hinged center of pawl pincers (2) of casing (1).
The self-locking shark jaw with safe spacing feedback the most according to claim 1 and 2, it is characterised in that described master connecting-rod (31) is provided with locating piece with the articulated position of slave connecting rod (32).
The self-locking shark jaw with safe spacing feedback the most according to claim 1 and 2, it is characterised in that the axis of the swivel pin of described two pieces pawl pincers (2) is 90 ° and intersects setting.
The self-locking shark jaw with safe spacing feedback the most according to claim 1 and 2, it is characterized in that, described casing (1) is the box-structure of isosceles triangle in cross section, and the hinged swivel pin of described master connecting-rod (31) and casing (1) is symmetrically positioned in the waist location of isosceles triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620262833.XU CN205707171U (en) | 2016-03-31 | 2016-03-31 | There is the self-locking shark jaw of safe spacing feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620262833.XU CN205707171U (en) | 2016-03-31 | 2016-03-31 | There is the self-locking shark jaw of safe spacing feedback |
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| Publication Number | Publication Date |
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| CN205707171U true CN205707171U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620262833.XU Active CN205707171U (en) | 2016-03-31 | 2016-03-31 | There is the self-locking shark jaw of safe spacing feedback |
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| CN (1) | CN205707171U (en) |
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- 2016-03-31 CN CN201620262833.XU patent/CN205707171U/en active Active
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| GR01 | Patent grant |