CN102758426B - The locking device of elevating platform - Google Patents
The locking device of elevating platform Download PDFInfo
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- CN102758426B CN102758426B CN201110108709.XA CN201110108709A CN102758426B CN 102758426 B CN102758426 B CN 102758426B CN 201110108709 A CN201110108709 A CN 201110108709A CN 102758426 B CN102758426 B CN 102758426B
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- rack
- locking
- platform
- locking device
- locking rack
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Abstract
A kind of locking device of elevating platform, comprise platform support, locking rack, first driver, for spud leg and the lifter rack be arranged on spud leg of support platform support, first driver moves in order to drive locking rack, locking rack is made to engage with lifter rack or to be separated, described elevating platform locking device also comprises swing fluid cylinder, described swing fluid cylinder one end is articulated with on the A point of platform support, the other end is articulated with on the B point of locking rack, when the height of adjusting pole platform, angle a between line segment AB and spud leg is more than or equal to 0 degree and is less than or equal to 90 degree.The locking device of above-mentioned elevating platform swings the rodless cavity of fluid cylinder and the oil pressure of rod chamber by adjustment, realizes the accurate adjustment of adjustment locking rack upper and lower displacement, has saved the time of adjustment.
Description
Technical field
The present invention relates to a kind of elevating platform, particularly relate to a kind of locking device of elevating platform.
Background technology
Elevating platform is a kind of mobile ocean engineering platform of exploiting for marine energy sources and reconnoitring, and this platform arrives predetermined area work by barge traction.The chief component of elevating platform is the locking device behind working platform, the spud leg of support platform, the power set controlling workbench lifting and working platform location.After suitable height adjusted to by working platform, locking device need be started platform is pinned, by support and the locking of locking device implementation platform.
Existing locking device comprise locking rack, for promote drive locking rack to engage with the lifter rack on spud leg or be separated dynamical element, for promoting the lifter that locking rack moves up and down.After suitable height adjusted to by working platform, start dynamical element, thus promotion locking rack engages with lifter rack, when the tooth top of locking rack is relative with the tooth top of lifter rack, start lifter, promote locking teeth block and move up and down, make, the tooth top of locking rack is relative with the teeth groove of lifter rack, thus locking rack is engaged smoothly with lifter rack.
But in actual use, find to need the stroke through adjustment lifter repeatedly, the tooth top that can reach locking rack is relative with the teeth groove of lifter rack.
Summary of the invention
In view of this, be necessary to provide a kind of elevating platform locking device being convenient to adjust locking rack upper and lower displacement.
A kind of locking device of elevating platform, comprise platform support, locking rack, first driver, for spud leg and the lifter rack be arranged on spud leg of support platform support, first driver moves in order to drive locking rack, locking rack is made to engage with lifter rack or to be separated, described elevating platform locking device also comprises swing fluid cylinder, described swing fluid cylinder one end is articulated with on the A point of platform support, the other end is articulated with on the B point of locking rack, when the height of adjusting pole platform, angle a between line segment AB and spud leg is more than or equal to 0 degree and is less than or equal to 90 degree.
Described swing fluid cylinder is for supporting locking rack.
When described locking rack engages with described lifter rack, angle b between described line segment AB and spud leg is more than or equal to 0 degree and is less than or equal to 90 degree, and angle a and wedge angle b sum equal to swing fluid cylinder 70 swings to locked position angle from the position during height of adjusting pole platform.
Described angle a is more than or equal to 1 degree and is less than or equal to 20 degree.
Described angle a is 5 degree.
Described swing fluid cylinder comprises cylinder body, first piston bar and the second piston rod, and described cylinder body is divided into the first chamber and the second chamber by dividing plate, and described first piston bar is arranged in the first chamber actively, and described second piston rod is arranged in the second chamber actively.
Described cylinder body is hinged with on platform support, and described second piston rod is articulated with on described locking rack.
Described swing fluid cylinder comprises cylinder body, piston rod and flexible member, and described cylinder body is divided into the first chamber and the second chamber by dividing plate, and described flexible member is arranged in the first chamber, and described piston rod is arranged in the second chamber actively.
Described cylinder body is hinged with on platform support, and described piston rod is articulated with on described locking rack.
Described first driver is fluid cylinder, and one end of described fluid cylinder is articulated on platform support, and the other end is articulated on locking rack, and described fluid cylinder moves upward in close or away from described lifter rack side for promoting described locking rack.
The number of described fluid cylinder is two, and these two fluid cylinders are disposed in parallel between described platform support and described locking rack.
The locking device of described elevating platform also comprises two wedges and two second drivers, and described two wedges are arranged at the two ends of locking rack respectively, described two second drivers in order to drive two wedges near or move away from locking rack direction.
Described second driver is worm and gear lifter.
The locking device of above-mentioned elevating platform swings the rodless cavity of fluid cylinder and the oil pressure of rod chamber by adjustment, realizes the accurate adjustment of adjustment locking rack upper and lower displacement, has saved the time of adjustment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the locking device of a preferred embodiment elevating platform.
Fig. 2 is the schematic diagram swinging fluid cylinder in Fig. 1.
Fig. 3 is the schematic diagram of the first locking state of the locking device of elevating platform in Fig. 1.
Fig. 4 is the schematic diagram of the second locking state of the locking device of elevating platform in Fig. 1.
Fig. 5 is the schematic diagram that another better embodiment swings fluid cylinder.
Specific embodiment
As shown in Figure 1, be the schematic diagram of locking device 100 of a preferred embodiment elevating platform.The locking device 100 of elevating platform comprises spud leg 10, platform support 20, locking rack 30, first driver 40, two wedge 50, two second driver 60 and swings fluid cylinder 70.
Spud leg 10, for support platform support 20, spud leg 10 is provided with lifter rack 11.
Platform support 20 offers two chutes 21.Two chutes 21 be arranged in parallel with spud leg 10, and two chutes 21 are disposed on same straight line.
Locking rack 30, for engaging with lifter rack 11, by adjusting the position that locking rack 30 engages with lifter rack 11, thus adjusts the height of platform support 20.
First driver 40 one end connects locking rack 30, other end connecting platform support 20.First driver 40 engages with lifter rack 11 for driving locking rack 30, or drives locking rack 30 to be separated with lifter rack 11.In the present embodiment, this first driver 40 is reset fluid cylinder.The number of reset fluid cylinder is two.
Two wedges 50 are arranged at the two ends of locking rack 30 respectively, and are arranged at slidably respectively in two chutes 21.
Two second drivers 60 are arranged at the outside of two wedges 50, and its one end is fixed on platform support 20, and the other end connects two wedges 50 respectively, in order to drive two wedges 50 near or move away from locking rack 30 direction.When locking rack 30 engages with lifter rack 11, two second drivers 60 promote two wedges 50 near the motion of locking rack 30 direction, push locking rack 30, prevent locking rack 30 to be separated with lifter rack 11.
In the present embodiment, two second drivers 60 are worm and gear lifter, and in other embodiments, two second drivers 60 can be the driving elements such as fluid cylinder.
Swinging fluid cylinder 70 one end is articulated with on platform support 20, and the other end is articulated with on locking rack 30, and is positioned at the center of gravity place of locking rack 30, swings fluid cylinder 70 and supports locking rack 30.It is A that setting swings fluid cylinder 70 with the pin joint of platform support 20, and swinging fluid cylinder 70 with the pin joint of locking rack 30 is B.When initial position, namely when adjusting the height of platform support 20, as shown in Figure 1, the angle between line segment AB and spud leg is a, and angle a is more than or equal to 0 degree, is less than 90 degree, and the preferable range of angle a is less than or equal to 20 degree for being greater than 1 degree.Refer to Fig. 3 and Fig. 4, when locked position, namely when locking rack 30 engages with lifter rack 11, the angle between line segment AB and spud leg is b, and angle b is more than or equal to 0 degree, is less than 90 degree.The angle that angle a adds angle b equals to swing fluid cylinder 70 swings to locked position angle from initial position.In the present embodiment, a equals 5 degree.
In the present embodiment, swinging fluid cylinder 70 is a secondary fluid cylinder.Swing fluid cylinder 70 and comprise cylinder body 71, first piston bar 73 and the second piston rod 75.Cylinder body 71 is hinged with on platform support 20, and is divided into the first chamber 711 and the second chamber 713 by dividing plate 77.First piston bar 73 is arranged in the first chamber 711 actively, and the second piston rod 75 is arranged in the second chamber 713 actively, and its end is articulated with locking rack 30.
After having assembled in turn, need first to oil-feed in the rodless cavity of the first chamber 711 of swing fluid cylinder 70, thus make first piston bar 73 promote the second piston rod 75 overcome locking rack 30 gravity rise, when locking rack 30 arrives operating position, pressurize is carried out to the rodless cavity of the first chamber 711, prevents locking rack 30 from surprisingly dropping.
As shown in Figure 1, be the state of the locking device 100 of elevating platform during adjustment podium level.Please refer to Fig. 3 and Fig. 4, when the Height Adjustment of platform is complete, then need platform support 20 to lock onto on spud leg 10, first, start the first driver 40, promote locking rack 30 and engage with lifter rack 11.When the tooth top of locking rack 30 is relative with the teeth groove of lifter rack 11, overcome and swing fluid cylinder 70 active force, the tooth top of locking rack 30 slips in the teeth groove of lifter rack 11 smoothly, thus realizes locking.When the tooth top of locking rack 30 is relative with the tooth top of lifter rack 11, adjustment swings the rodless cavity of the second chamber 713 and the oil pressure of rod chamber of fluid cylinder 70, drive the second piston rod 75 upwards or move downward, thus drive locking rack 30 upwards or move downward, thus make the tooth top of locking rack 30 relative with the teeth groove of lifter rack 11, the tooth top of locking rack 30 slips in the teeth groove of lifter rack 11 smoothly, thus realizes locking.Finally, start two second drivers 60, promote two wedges 50 respectively near the motion of locking rack 30 direction, push locking rack 30, prevent locking rack 30 to be separated with lifter rack 11 further.
When locking state removed by needs, first two second drivers 60 are started, two wedges 50 are driven to move to away from locking rack 30 direction respectively, unclamp locking rack 30, restart the first driver 10, drive locking rack 30 to move to the direction away from lifter rack 11, locking rack 30 is separated with lifter rack 11, thus remove the locking of locking rack 30 and lifter rack 11.
The locking device of above-mentioned elevating platform swings the rodless cavity of the second chamber 713 and the oil pressure of rod chamber of fluid cylinder 70 by adjustment, realize the accurate adjustment of adjustment locking rack 30 upper and lower displacement, thus avoid repeatedly adjusting.
Refer to Fig. 5, for another better embodiment swings the schematic diagram of fluid cylinder 80.Swinging fluid cylinder 80 one end is articulated with on platform support 20, and the other end is articulated with on locking rack 30, and is positioned at the center of gravity place of locking rack 30.Swing fluid cylinder 80 and comprise cylinder body 81, piston rod 83 and flexible member 85.Cylinder body 81 is hinged with on platform support 20, and is divided into the first chamber 811 and the second chamber 813 by dividing plate 87.Flexible member 85 is arranged in the first chamber 811, and piston rod 85 is arranged in the second chamber 813 actively, and its end is articulated with locking rack 30.Swing before fluid cylinder 80 in use, without the need to injecting liquid in the first chamber 811, the active force that flexible member 85 pairs of locking racks produce also can reach and prevent the unexpected object dropped of locking rack 30, other steps all with use swing fluid cylinder 70 time identical.
In addition, swing fluid cylinder and also can be a common fluid cylinder, it can drive locking rack 30 upwards or move downward equally, thus makes the tooth top of locking rack 30 relative with the teeth groove of lifter rack 11, the tooth top of locking rack 30 slips in the teeth groove of lifter rack 11 smoothly, thus realizes locking.
Claims (8)
1. the locking device of an elevating platform, comprise platform support, locking rack, first driver, for spud leg and the lifter rack be arranged on spud leg of support platform support, first driver is in order to drive the movement of locking rack, locking rack is made to engage with lifter rack or to be separated, it is characterized in that: described first driver is made up of two fluid cylinders, described two fluid cylinders are disposed in parallel between described platform support and described locking rack, one end of described two fluid cylinders is articulated on platform support, the other end is articulated on locking rack, described two fluid cylinders move upward in close or away from described lifter rack side for promoting described locking rack, described elevating platform locking device also comprises swing fluid cylinder, described swing fluid cylinder one end is articulated with on the A point of platform support, the other end is articulated with on the B point of locking rack, described swing fluid cylinder is for supporting locking rack, when the height of adjusting pole platform, angle a between line segment AB and spud leg is more than or equal to 0 degree and is less than or equal to 90 degree.
2. the locking device of elevating platform as claimed in claim 1, it is characterized in that: when described locking rack engages with described lifter rack, angle b between described line segment AB and spud leg is more than or equal to 0 degree and is less than or equal to 90 degree, and angle a and angle b sum equal described swing fluid cylinder swings to locked position angle from the position during height of adjusting pole platform.
3. the locking device of elevating platform as claimed in claim 2, is characterized in that: described angle a is more than or equal to 1 degree and is less than or equal to 20 degree.
4. the locking device of elevating platform as claimed in claim 3, is characterized in that: described angle a is 5 degree.
5. the locking device of elevating platform as claimed in claim 1, it is characterized in that: described swing fluid cylinder comprises cylinder body, first piston bar and the second piston rod, described cylinder body is divided into the first chamber and the second chamber by dividing plate, described first piston bar is arranged in the first chamber actively, and described second piston rod is arranged in the second chamber actively.
6. the locking device of elevating platform as claimed in claim 5, it is characterized in that: described cylinder body is articulated with on platform support, described second piston rod is articulated with on described locking rack.
7. the locking device of elevating platform as claimed in claim 1, it is characterized in that: the locking device of described elevating platform also comprises two wedges and two second drivers, described two wedges are arranged at the two ends of locking rack respectively, described two second drivers in order to drive two wedges near or move away from locking rack direction.
8. the locking device of elevating platform as claimed in claim 7, is characterized in that: described second driver is worm and gear lifter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110108709.XA CN102758426B (en) | 2011-04-28 | 2011-04-28 | The locking device of elevating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110108709.XA CN102758426B (en) | 2011-04-28 | 2011-04-28 | The locking device of elevating platform |
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| Publication Number | Publication Date |
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| CN102758426A CN102758426A (en) | 2012-10-31 |
| CN102758426B true CN102758426B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110108709.XA Active CN102758426B (en) | 2011-04-28 | 2011-04-28 | The locking device of elevating platform |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439129A (en) * | 2013-08-03 | 2013-12-11 | 广东精铟机械有限公司 | Lifting system joint debugging testing machine for drilling platform |
| CN104743471A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Lifting rack random locking mechanism of truss pile leg platform |
| CN104278663B (en) * | 2014-09-18 | 2016-08-24 | 武汉船用机械有限责任公司 | A kind of locking device of gear rack lifting system |
| CN110421519A (en) * | 2019-09-06 | 2019-11-08 | 中国重型机械研究院股份公司 | A kind of swing type stepless rack gear locking device |
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| CN1192714A (en) * | 1995-07-06 | 1998-09-09 | 株式会社小松制作所 | High-speed high-load hydraulic cylinder system and control method thereof |
| US5915882A (en) * | 1997-06-26 | 1999-06-29 | Letourneau, Inc. | Jack-up platform locking apparatus and method |
| CN101305203A (en) * | 2005-11-08 | 2008-11-12 | 萱场工业株式会社 | Single cylinder type hydraulic buffer for automobile |
| CN201459700U (en) * | 2009-07-22 | 2010-05-12 | 上海振华重工(集团)股份有限公司 | Self-elevating engineering platform and locking device thereof |
| CN201704683U (en) * | 2010-05-21 | 2011-01-12 | 四川宏华石油设备有限公司 | Locking mechanism for lifting of ocean platform |
| CN201778345U (en) * | 2010-07-20 | 2011-03-30 | 佛山市精铟机械有限公司 | Testing machine for spud leg locking system of self-elevating drilling platform |
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- 2011-04-28 CN CN201110108709.XA patent/CN102758426B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192714A (en) * | 1995-07-06 | 1998-09-09 | 株式会社小松制作所 | High-speed high-load hydraulic cylinder system and control method thereof |
| US5915882A (en) * | 1997-06-26 | 1999-06-29 | Letourneau, Inc. | Jack-up platform locking apparatus and method |
| CN101305203A (en) * | 2005-11-08 | 2008-11-12 | 萱场工业株式会社 | Single cylinder type hydraulic buffer for automobile |
| CN201459700U (en) * | 2009-07-22 | 2010-05-12 | 上海振华重工(集团)股份有限公司 | Self-elevating engineering platform and locking device thereof |
| CN201704683U (en) * | 2010-05-21 | 2011-01-12 | 四川宏华石油设备有限公司 | Locking mechanism for lifting of ocean platform |
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| CN102758426A (en) | 2012-10-31 |
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