CN114673128B - Continuous truss hydraulic bolt lifting system - Google Patents
Continuous truss hydraulic bolt lifting system Download PDFInfo
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- CN114673128B CN114673128B CN202210332185.0A CN202210332185A CN114673128B CN 114673128 B CN114673128 B CN 114673128B CN 202210332185 A CN202210332185 A CN 202210332185A CN 114673128 B CN114673128 B CN 114673128B
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- 230000007246 mechanism Effects 0.000 claims abstract description 127
- 230000000712 assembly Effects 0.000 claims abstract description 26
- 238000000429 assembly Methods 0.000 claims abstract description 26
- 239000007787 solid Substances 0.000 claims abstract 6
- 239000003921 oil Substances 0.000 claims description 216
- 239000010720 hydraulic oil Substances 0.000 claims description 23
- 239000004677 Nylon Substances 0.000 claims description 8
- 229920001778 nylon Polymers 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
A continuous truss hydraulic latch lifting system comprising: truss spud leg, solid stake frame, four upper yoke mechanisms, four lower yoke mechanisms and bolt subassembly. The truss pile leg is sleeved with a pile fixing frame, an opening matched with the truss pile leg is formed in the middle of the pile fixing frame, the truss pile leg comprises four string pipes which are parallel to each other, a plurality of pin holes are uniformly distributed in the two side parts of each string pipe from top to bottom, an upper yoke mechanism and a lower yoke mechanism are sequentially sleeved on each string pipe from top to bottom, the upper yoke mechanism and the lower yoke mechanism are fixedly connected with the pile fixing frame through lifting oil cylinders arranged at the tops of the upper yoke mechanism and the lower yoke mechanism, two oppositely arranged bolt assemblies are arranged at the bottoms of telescopic rods of the lifting oil cylinders, and the bolt assemblies are in insertion fit with the pin holes. The design can work alternately through the upper yoke mechanism and the lower yoke mechanism to realize the function of stable lifting of the pile fixing frame, and meanwhile, when part of the upper yoke mechanism or the lower yoke mechanism is damaged, the rest upper yoke mechanism or the lower yoke mechanism can still form a plane to realize the support of the pile fixing frame or the pile leg.
Description
Technical Field
The invention relates to a lifting system, in particular to a continuous truss hydraulic bolt lifting system which is particularly suitable for a continuous truss hydraulic bolt lifting system with adjustable lifting speed and high reliability.
Background
The self-elevating ocean platform is a common offshore operation device, and is widely used on ocean engineering devices such as an oil and gas processing platform, a living platform, a wind power installation ship and the like due to the advantages of high bearing capacity, low manufacturing cost and the like; the self-elevating ocean platform is generally composed of a pile fixing frame, pile legs and a hydraulic lifting system, wherein the pile fixing frame is sleeved on the pile legs and can move up and down along the pile legs under the driving of the hydraulic lifting system, and for a conventional hydraulic plug pin lifting system, cylindrical pile legs are mainly adopted, and for deep water area operation, truss pile legs are mainly adopted.
Although the two schemes can drive the pile fixing frame to lift through the hydraulic lifting system so as to meet the offshore operation requirement, the two schemes still have the following defects:
1. The lifting speed of the hydraulic system cannot be adjusted, and the application range is limited.
2. After the lifting devices on part of the pile legs are damaged, the whole system cannot be used.
3. The truss type pile leg usually adopts a gear rack type lifting mechanism, the gear rack type truss pile leg has high requirements on the manufacturing process and precision of racks, the welding difficulty of the racks and the pile leg main chord tube is high, and the cost of the whole lifting device is high.
4. The round pile leg structure has the advantages of heavy weight, small section modulus, limited manufacturing height and incapability of adapting to the operation in deep water areas.
Disclosure of Invention
The invention aims to overcome the defects of high manufacturing difficulty, high cost and incapability of adjusting lifting speed of a rack and pinion type lifting mechanism in the prior art, and provides a continuous truss hydraulic plug lifting system with adjustable lifting speed and high reliability.
In order to achieve the above object, the technical solution of the present invention is:
A continuous truss hydraulic latch lift system, the lift system comprising: truss spud legs, a pile fixing frame, four upper yoke mechanisms, four lower yoke mechanisms and a bolt assembly; the truss pile leg is sleeved with a pile fixing frame, an opening matched with the truss pile leg is formed in the middle of the pile fixing frame, the truss pile leg comprises four chord tubes which are parallel to each other, a plurality of pin holes are uniformly distributed in two sides of the chord tubes from top to bottom, the pin holes are formed in the horizontal direction, an upper yoke mechanism and a lower yoke mechanism are sequentially sleeved on the chord tubes from top to bottom, the bottom of the pile fixing frame is fixedly connected with a cylinder seat of an upper lifting cylinder arranged at the top of the upper yoke mechanism, the bottom of the pile fixing frame is fixedly connected with a cylinder seat of a lower lifting cylinder arranged at the top of the lower yoke mechanism, the lower lifting cylinders are arranged on the side parts of the upper lifting cylinders, two pin assemblies which are oppositely arranged are arranged at the bottoms of telescopic rods of the upper lifting cylinders and the lower lifting cylinders, the pin assemblies which are arranged on the upper lifting cylinders are arranged in the same horizontal plane, and the pin assemblies which are arranged on the lower lifting cylinders are arranged on the same horizontal plane are in an insertion fit with the pin holes.
The pile fixing frame comprises a lifting platform, pile fixing frame positioning holes, surrounding walls and limiting plates, wherein the lifting platform is of a flat plate structure, rectangular openings matched with truss pile legs are formed in the middle of the lifting platform, pile fixing frame positioning holes matched with string tubes are formed in four corners of the rectangular openings, the surrounding walls are arranged on the outer sides of the pile fixing frame positioning holes, the tops of the surrounding walls are fixedly connected with the bottoms of the pile fixing frames, the surrounding walls are of square box structures penetrating up and down, the truss pile legs are arranged in channels formed in the middle of the surrounding walls, four corners of the surrounding walls are respectively opposite to the string tubes on the corresponding sides of the surrounding walls, and a plurality of limiting plates parallel to the string tubes are arranged at the four corners of the surrounding walls and are in limiting fit with an upper yoke mechanism and a lower yoke mechanism on the corresponding sides of the limiting plates.
The upper yoke mechanism comprises two upper lifting oil cylinders, the bottoms of the two upper lifting oil cylinders are fixedly connected with two sides of the top of an upper sliding block respectively, limiting plates on the sides, close to the upper sliding block, of the upper sliding block are arranged, upper C-shaped grooves capable of containing string tubes are formed in the side portions of the upper sliding block, the upper sliding block is sleeved on the string tubes through the upper C-shaped grooves, the upper C-shaped grooves are in sliding fit with the string tubes, upper guide plates are arranged at the tops of the upper C-shaped grooves, the upper guide plates are in limiting fit with the string tubes, two bolt assemblies which are arranged oppositely are fixedly arranged at the bottoms of the upper sliding block, and the bolt assemblies are right opposite to pin holes formed in the string tubes.
The lower yoke mechanism comprises two lower lifting cylinders, the two lower lifting cylinders are respectively arranged on the outer sides of the two upper lifting cylinders, the bottoms of the two lower lifting cylinders are respectively fixedly connected with two sides of the top of a lower sliding block, a limiting plate which is close to the corresponding side of the lower sliding block is arranged, a lower C-shaped groove which can accommodate a string pipe is formed in the side portion of the lower sliding block, the lower C-shaped groove is in sliding fit with the string pipe, the lower sliding block is sleeved on the string pipe through the lower C-shaped groove, a lower guide plate is arranged at the bottom of the lower C-shaped groove, the lower guide plate is in limiting fit with the string pipe, a bolt component horizontally penetrates through the bottom of the lower sliding block, and the bolt component is right opposite to a pin hole formed in the string pipe.
The upper lifting oil cylinder works by providing hydraulic oil through an upper yoke power oil source, an oil outlet of the upper yoke power oil source is communicated with a first oil inlet of a three-position four-way electric proportional reversing valve, an oil outlet of the three-position four-way electric proportional reversing valve is communicated with an oil inlet of the upper lifting oil cylinder, an oil outlet of the upper lifting oil cylinder is communicated with a second oil inlet of the three-position four-way electric proportional reversing valve after passing through a first safety valve, and an oil return port of the three-position four-way electric proportional reversing valve is communicated with an oil unloading return tank after passing through a second safety valve;
The lower lifting oil cylinder works by providing hydraulic oil through a lower yoke power oil source, an oil outlet of the lower yoke power oil source is communicated with a first oil inlet of a three-position four-way electric proportional reversing valve, an oil outlet of the three-position four-way electric proportional reversing valve is communicated with an oil inlet of an upper lifting oil cylinder, an oil outlet of the upper lifting oil cylinder is communicated with a second oil inlet of the three-position four-way electric proportional reversing valve after passing through a first safety valve, and an oil return port of the three-position four-way electric proportional reversing valve is communicated with an oil unloading return tank after passing through a second safety valve.
The lifting system further comprises a two-position four-way electromagnetic directional valve, the oil outlet of the upper yoke power oil source provides hydraulic oil for the upper lifting oil cylinder after passing through the oil inlet and the first working port of the two-position four-way electromagnetic directional valve, and the oil outlet of the lower yoke power oil source provides hydraulic oil for the lower lifting oil cylinder after passing through the second working port and the oil return port of the two-position four-way electromagnetic directional valve.
The bolt assembly comprises a bolt seat, a bolt support, a bolt oil cylinder and a bolt, wherein the bolt seat is of a cylindrical structure, the bolt support is of a flat plate structure with reinforcing ribs, the end faces of the bolt seat are fixedly connected with the two ends of the bolt support through two struts, the middle part of the bolt support is fixedly connected with the oil cylinder seat of the bolt oil cylinder, the bolt is fixedly arranged on a telescopic rod of the bolt oil cylinder, and is arranged in the bolt seat in a penetrating manner, and the bolt is in sliding fit with the inner wall of the bolt seat;
The plug oil cylinder is communicated with a first oil inlet of the two-position four-way reversing valve through a plug power oil source through hydraulic oil, an oil outlet of the plug power oil source is communicated with a second oil inlet of the two-position four-way reversing valve, and an oil return port of the two-position four-way reversing valve is communicated with an oil discharge and return tank.
The bolt assembly further comprises a guide rod and two proximity switches, one end of the guide rod is fixedly arranged on the side of a near-bolt oil cylinder of the bolt, a contact is arranged at the other end of the guide rod, the guide rod and the inner wall of the bolt seat are arranged in parallel, the two proximity switches are all fixed on the inner wall of the bolt seat, the two proximity switches are all arranged under the guide rod, the connecting lines of the two proximity switches are parallel to the guide rod, and the contact rods of the two proximity switches are in transmission fit with the contact of the guide rod.
The bolt subassembly still includes two elasticity righting devices, elasticity righting device includes spring bracket, spring guide block and nylon plate, and two elasticity righting devices all set up on the terminal surface of the nearly bolt hydro-cylinder of bolt seat through spring bracket is fixed, and two elasticity righting devices set up respectively in the both sides of bolt bracket, the one end and the spring bracket fixed connection of spring, the other end of spring is fixed and is provided with the spring guide block, the spring guide block is through the nylon plate fixed connection of its last setting with the contact terminal of guide bar, spring bracket passes through spring and guide bar compression fit, the bolt subassembly still includes the filler pipe, the filler pipe is fixed to be set up in the nearly bolt hydro-cylinder side of bolt.
The anti-rotation mechanism is of a square structure, the anti-rotation mechanism is arranged near the limiting plate, two wear-resisting plates are fixedly arranged on the end face of the anti-rotation mechanism near the limiting plate, one wear-resisting plate is fixedly arranged on each of the end faces of the two sides of the anti-rotation mechanism, and the wear-resisting plates of the upper yoke mechanism are matched with the limiting plates.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the continuous truss hydraulic bolt lifting system, the truss pile leg is sleeved with the pile fixing frame, the middle part of the pile fixing frame is provided with the rectangular opening matched with the truss pile leg, four corners of the rectangular opening are provided with the pile fixing frame positioning holes matched with the string tubes, the bottom of the pile fixing frame is fixedly connected with the lifting cylinders on the upper yoke mechanism and the lower yoke mechanism, the lifting cylinders are in inserted fit with the string tubes in the truss pile leg through the bolt assemblies arranged at the bottom of the lifting cylinders, the upper yoke mechanism and the lower yoke mechanism can work alternately, the stable lifting function of the pile fixing frame can be realized, and when the upper yoke mechanism or the lower yoke mechanism on a certain string tube is damaged, the rest upper yoke mechanism or lower yoke mechanism can still form a plane, so that the support of the pile fixing frame or the pile leg is realized, and the reliability of the system is effectively improved. Therefore, the pile fixing frame can stably lift through the alternate work of the upper yoke mechanism and the lower yoke mechanism, and meanwhile, when part of the upper yoke mechanism or the lower yoke mechanism is damaged, the rest upper yoke mechanism or the lower yoke mechanism can still form a plane, so that the support of the pile fixing frame or the pile leg is realized, and the reliability of the system is effectively improved.
2. When the continuous truss hydraulic plug pin lifting system works, the upper yoke mechanism and the lower yoke mechanism on different diagonals can be used for alternately working, and under the condition that the flow of hydraulic oil provided by the upper yoke power oil source and the lower yoke power oil source is constant, the doubling of the light load lifting speed is realized, the actual application requirements of the shipmen are better met, and the application range of the system is effectively expanded. Therefore, the upper yoke mechanism and the lower yoke mechanism on different diagonals alternately work, so that the lifting speed of the system is doubled under the light load working condition under the condition of a certain hydraulic oil flow, and the application range of the system is effectively enlarged.
3. According to the continuous truss hydraulic bolt lifting system, the surrounding walls are arranged at the bottoms of the pile fixing frames and are in limiting fit with the upper yoke mechanism and the lower yoke mechanism through the limiting plates, so that the upper yoke mechanism and the lower yoke mechanism cannot rotate or deflect horizontally in the using process of the system, the stability of the system in the working process is guaranteed, and the safety of the system is effectively improved. Therefore, the upper yoke mechanism and the lower yoke mechanism can be prevented from rotating or deflecting in the horizontal direction in the use process of the system through limit fit of the limit plate and the upper yoke mechanism and the lower yoke mechanism, and the safety of the system is effectively improved.
4. The bolt component in the continuous truss hydraulic bolt lifting system comprises an elastic righting device, the elastic righting device is elastically connected with a bolt and a bolt seat through a spring, the bolt can rotate or deflect due to acting force generated between the bolt and a string pipe in the working process, at the moment, the spring deforms to store elastic potential energy, and when the bolt is pulled out of a pin hole, the spring can enable the bolt to return to an initial position due to the elastic potential energy, so that damage caused by the fact that the bolt rotates or deflects too much is avoided. Therefore, the elastic centering device can enable the bolt to rotate or deflect and then return to the initial position, so that the damage of the system is avoided, and the service life of the system is effectively prolonged.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of another view of the present invention.
Fig. 3 is a schematic view of the upper yoke mechanism of fig. 1.
Fig. 4 is a schematic view of the lower yoke mechanism of fig. 1.
Fig. 5 is a top view of the anti-rotation mechanism of fig. 3.
Fig. 6 is a schematic view of the latch assembly of fig. 3.
Fig. 7 is a cross-sectional view of the plug pin assembly of fig. 3.
Fig. 8 is a schematic view of the resilient righting means of fig. 5.
Fig. 9 is a hydraulic schematic of the upper yoke mechanism of fig. 1.
Fig. 10 is a hydraulic schematic of the lower yoke mechanism of fig. 1.
In the figure: truss leg 1, chord tube 11, pin hole 12, pile fixing frame 2, lifting platform 21, pile fixing frame positioning hole 22, enclosing wall 23, limiting plate 24, upper yoke mechanism 3, upper lifting cylinder 31, upper slider 32, upper guide plate 33, upper C-shaped hole 34, lower yoke mechanism 4, lower lifting cylinder 41, lower slider 42, lower guide plate 43, lower C-shaped hole 44, latch assembly 5, latch seat 51, latch bracket 52, latch cylinder 53, latch 54, guide rod 55, proximity switch 56, elastic righting device 57, spring bracket 571, spring 572, spring guide block 573, nylon plate 574, oil filler tube 58, anti-rotation mechanism 6, wear plate 61, upper yoke power oil source 7, lower yoke power oil source 8, first safety valve 9, second safety valve 10.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 10, a continuous truss hydraulic latch lifting system, the lifting system comprising: truss spud leg 1, pile fixing frame 2, four upper yoke mechanisms 3, four lower yoke mechanisms 4 and bolt components 5; the truss pile leg 1 is sleeved with a pile fixing frame 2, an opening matched with the truss pile leg 1 is formed in the middle of the pile fixing frame 2, the truss pile leg 1 comprises four chord tubes 11 which are mutually parallel, a plurality of pin holes 12 are uniformly distributed on two side portions of the chord tubes 11 from top to bottom, the pin holes 12 are formed in the horizontal direction, an upper yoke mechanism 3 and a lower yoke mechanism 4 are sequentially sleeved on the chord tubes 11 from top to bottom, the bottom of the pile fixing frame 2 is fixedly connected with a cylinder seat of an upper lifting cylinder 31 arranged at the top of the upper yoke mechanism 3, the bottom of the pile fixing frame 2 is fixedly connected with a cylinder seat of a lower lifting cylinder 41 arranged at the top of the lower yoke mechanism 4, the lower lifting cylinders 41 are arranged on the side portions of the upper lifting cylinders 31, two pin assemblies 5 which are oppositely arranged are arranged at the bottoms of telescopic rods of the upper lifting cylinders 31 and the lower lifting cylinders 41, the pin assemblies 5 which are arranged on the upper lifting cylinders 31 are arranged in the same horizontal plane, and the assemblies 5 which are arranged on the lower lifting cylinders 41 are respectively arranged in the same horizontal plane, and the pin assemblies which are matched with the pin holes 5.
The pile fixing frame 2 comprises a lifting platform 21, pile fixing frame positioning holes 22, surrounding walls 23 and limiting plates 24, the lifting platform 21 is of a flat plate structure, rectangular openings matched with the truss pile legs 1 are formed in the middle of the lifting platform 21, pile fixing frame positioning holes 22 matched with the string pipes 11 are formed in four corners of the rectangular openings, surrounding walls 23 are arranged on the outer sides of the pile fixing frame positioning holes 22, the tops of the surrounding walls 23 are fixedly connected with the bottoms of the pile fixing frames 2, the surrounding walls 23 are of a square box structure penetrating up and down, the truss pile legs 1 are arranged in channels formed in the middle of the surrounding walls 23, four corners of the surrounding walls 23 are respectively right opposite to the string pipes 11 on corresponding sides of the surrounding walls, a plurality of limiting plates 24 arranged parallel to the string pipes 11 are arranged at four corners of the surrounding walls 23, and the limiting plates 24 are in limit fit with upper yoke mechanisms 3 and lower yoke mechanisms 4 on corresponding sides of the surrounding walls.
The upper yoke mechanism 3 comprises two upper lifting oil cylinders 31, the bottoms of the two upper lifting oil cylinders 31 are fixedly connected with two sides of the top of an upper sliding block 32 respectively, the upper sliding block 32 is arranged near a limiting plate 24 on the corresponding side of the upper sliding block 32, an upper C-shaped groove 34 capable of accommodating a string pipe 11 is formed in the side portion of the upper sliding block 32, the upper sliding block 32 is sleeved on the string pipe 11 through the upper C-shaped groove 34, the upper C-shaped groove 34 is in sliding fit with the string pipe 11, an upper guide plate 33 is arranged at the top of the upper C-shaped groove 34, the upper guide plate 33 is in limiting fit with the string pipe 11, two oppositely arranged bolt assemblies 5 are fixedly arranged at the bottom of the upper sliding block 32, and the bolt assemblies 5 are opposite to the pin holes 12 formed in the string pipe 11.
The lower yoke mechanism 4 comprises two lower lifting oil cylinders 41, the two lower lifting oil cylinders 41 are respectively arranged on the outer sides of the two upper lifting oil cylinders 31, the bottoms of the two lower lifting oil cylinders 41 are respectively fixedly connected with two sides of the top of a lower sliding block 42, the lower sliding block 42 is arranged near a limiting plate 24 on the corresponding side of the lower sliding block, a lower C-shaped groove 44 capable of containing the string tube 11 is formed in the side part of the lower sliding block 42, the lower C-shaped groove 44 is in sliding fit with the string tube 11, the lower sliding block 42 is sleeved on the string tube 11 through the lower C-shaped groove 44, a lower guide plate 43 is arranged at the bottom of the lower C-shaped groove 44 and is in limiting fit with the string tube 11, a plug pin assembly 5 is horizontally arranged at the bottom of the lower sliding block 42 in a penetrating mode, and the plug pin assembly 5 is just opposite to the pin hole 12 formed in the string tube 11.
The upper lifting oil cylinder 31 works by providing hydraulic oil through an upper yoke power oil source 7, an oil outlet of the upper yoke power oil source 7 is communicated with a first oil inlet of a three-position four-way electric proportional reversing valve, an oil outlet of the three-position four-way electric proportional reversing valve is communicated with an oil inlet of the upper lifting oil cylinder 31, an oil outlet of the upper lifting oil cylinder 31 is communicated with a second oil inlet of the three-position four-way electric proportional reversing valve after passing through a first safety valve 71, and an oil return port of the three-position four-way electric proportional reversing valve is communicated with an oil unloading and return tank after passing through a second safety valve 72;
The lower lifting oil cylinder 41 works by providing hydraulic oil through the lower yoke power oil source 8, an oil outlet of the lower yoke power oil source 8 is communicated with a first oil inlet of a three-position four-way electric proportional reversing valve, an oil outlet of the three-position four-way electric proportional reversing valve is communicated with an oil inlet of the upper lifting oil cylinder 31, an oil outlet of the upper lifting oil cylinder 31 is communicated with a second oil inlet of the three-position four-way electric proportional reversing valve after passing through a first safety valve 71, and an oil return port of the three-position four-way electric proportional reversing valve is communicated with an oil unloading and returning tank after passing through a second safety valve 72.
The lifting system further comprises a two-position four-way electromagnetic directional valve, the oil outlet of the upper yoke power oil source 7 provides hydraulic oil for the upper lifting oil cylinder 31 after passing through the oil inlet and the first working port of the two-position four-way electromagnetic directional valve, and the oil outlet of the lower yoke power oil source 8 provides hydraulic oil for the lower lifting oil cylinder 41 after passing through the second working port and the oil return port of the two-position four-way electromagnetic directional valve.
The bolt assembly 5 comprises a bolt seat 51, a bolt bracket 52, a bolt oil cylinder 53 and a bolt 54, wherein the bolt seat 51 is of a cylindrical structure, the bolt bracket 52 is of a flat plate structure with reinforcing ribs, the end faces of the bolt seat 51 are fixedly connected with the two ends of the bolt bracket 52 through two struts, the middle part of the bolt bracket 52 is fixedly connected with the oil cylinder seat of the bolt oil cylinder 53, a bolt 54 is fixedly arranged on a telescopic rod of the bolt oil cylinder 53, the bolt 54 penetrates through the bolt seat 51, and the bolt 54 is in sliding fit with the inner wall of the bolt seat 51;
The bolt oil cylinder 53 passes through hydraulic oil through a bolt power oil source, an oil outlet of the bolt power oil source is communicated with a first oil inlet of the two-position four-way reversing valve, an oil outlet of the two-position four-way reversing valve is communicated with a second oil inlet of the two-position four-way reversing valve, and an oil return port of the two-position four-way reversing valve is communicated with an oil discharge and return tank.
The bolt assembly 5 further comprises a guide rod 55 and two proximity switches 56, one end of the guide rod 55 is fixedly arranged on the side of the bolt 54, close to the bolt oil cylinder 53, a contact is arranged at the other end of the guide rod 55, the guide rod 55 is arranged in parallel with the inner wall of the bolt seat 51, the two proximity switches 56 are all fixed on the inner wall of the bolt seat 51, the two proximity switches 56 are all arranged under the guide rod 55, the connecting lines of the two proximity switches 56 are parallel to the guide rod 55, and the contact rods of the two proximity switches 56 are in transmission fit with the contact of the guide rod 55.
The latch assembly 5 further comprises two elastic righting devices 57, the elastic righting devices 57 comprise a spring support 571, a spring 572, a spring guide block 573 and a nylon plate 574, the two elastic righting devices 57 are fixedly arranged on the end face, close to the latch cylinder 53, of the latch base 51 through the spring support 571, the two elastic righting devices 57 are respectively arranged on two sides of the latch support 52, one end of the spring 572 is fixedly connected with the spring support 571, the other end of the spring 572 is fixedly provided with the spring guide block 573, the spring guide block 573 is fixedly connected with the contact end of the guide rod 55 through a nylon plate 574 arranged on the spring guide block 573, the spring support 571 is in press fit with the guide rod 55 through the spring 572, the latch assembly 5 further comprises a filler pipe 58, and the filler pipe 58 is fixedly arranged on the side, close to the latch cylinder 53, of the latch 54.
The anti-rotation mechanism 6 is of a square structure, the anti-rotation mechanism 6 is arranged near the limiting plate 24, two wear-resisting plates 61 are fixedly arranged on the end faces of the anti-rotation mechanism 6 near the limiting plate 24 side, one wear-resisting plate 61 is fixedly arranged on each of the end faces of the two sides of the anti-rotation mechanism 6, and the wear-resisting plates 61 of the upper yoke mechanism are matched with the limiting plate 24.
The principle of the invention is explained as follows:
in the invention, when the pile fixing frame 2 needs to keep the working position unchanged, the bolt cylinders 53 on all the upper yoke mechanisms 3 and the lower yoke mechanisms 4 are kept in an extension state, and all bolts 54 are inserted into the pin holes 12 on the string pipe 11 at the moment, so that the pile fixing frame 2 is stably supported;
When the pile leg is lifted, the upper yoke mechanism 3 and the lower yoke mechanism 4 on one diagonal are adopted to perform combined action, the upper yoke mechanism 3 and the lower yoke mechanism 4 on the other diagonal do not work, and under the condition of a certain hydraulic oil flow, the lifting speed is doubled under the light load working condition, so that different practical application requirements are better met;
When the pile leg is lifted, when a single upper yoke mechanism 3 or a single lower yoke mechanism 4 fails, the upper yoke mechanism 3 and the lower yoke mechanism 4 at the other opposite angles can be directly adopted to work, so that the system can still continuously lift, and the lifting speed is unchanged;
When a certain upper yoke mechanism 3 fails in the lifting platform, the rest upper yoke mechanisms 3 can be adopted for fixing and supporting, the lower yoke mechanism 4 can perform lifting action, the lifting capacity is unchanged, and the lifting mode is changed from continuous lifting to stepping lifting.
Example 1
The lifting system includes: truss spud leg 1, pile fixing frame 2, four upper yoke mechanisms 3, four lower yoke mechanisms 4 and bolt components 5; the truss pile leg 1 is sleeved with a pile fixing frame 2, an opening matched with the truss pile leg 1 is formed in the middle of the pile fixing frame 2, the truss pile leg 1 comprises four chord pipes 11 which are mutually parallel, a plurality of pin holes 12 are uniformly distributed on two side parts of the chord pipes 11 from top to bottom, the pin holes 12 are arranged along the horizontal direction, an upper yoke mechanism 3 and a lower yoke mechanism 4 are sequentially sleeved on the chord pipes 11 from top to bottom, the bottom of the pile fixing frame 2 is fixedly connected with a cylinder seat of an upper lifting cylinder 31 arranged at the top of the upper yoke mechanism 3, the bottom of the pile fixing frame 2 is fixedly connected with a cylinder seat of a lower lifting cylinder 41 arranged at the top of the lower yoke mechanism 4, the lower lifting cylinder 41 is arranged at the side parts of the upper lifting cylinder 31, two pin assemblies 5 which are oppositely arranged are respectively arranged at the bottom of telescopic rods of the upper lifting cylinder 31, the pin assemblies 5 which are respectively arranged on the lower lifting cylinders 41 are arranged in the same horizontal plane, and the pin assemblies 5 which are respectively arranged on the lower lifting cylinders 41 are respectively arranged in the same horizontal plane, and the pin assemblies which are matched with the pin holes 12 are inserted; the pile fixing frame 2 comprises a lifting platform 21, pile fixing frame positioning holes 22, surrounding walls 23 and limiting plates 24, the lifting platform 21 is of a flat plate structure, rectangular openings matched with the truss pile legs 1 are formed in the middle of the lifting platform 21, pile fixing frame positioning holes 22 matched with the string pipes 11 are formed in four corners of the rectangular openings, surrounding walls 23 are arranged on the outer sides of the pile fixing frame positioning holes 22, the tops of the surrounding walls 23 are fixedly connected with the bottoms of the pile fixing frames 2, the surrounding walls 23 are of a square box structure penetrating up and down, the truss pile legs 1 are arranged in channels formed in the middle of the surrounding walls 23, four corners of the surrounding walls 23 are respectively opposite to the string pipes 11 on corresponding sides of the surrounding walls, a plurality of limiting plates 24 which are parallel to the string pipes 11 are arranged at four corners of the surrounding walls 23, and the limiting plates 24 are in limit fit with upper yoke mechanisms 3 and lower yoke mechanisms 4 on corresponding sides of the surrounding walls. The upper yoke mechanism 3 comprises two upper lifting oil cylinders 31, the bottoms of the two upper lifting oil cylinders 31 are fixedly connected with two sides of the top of an upper sliding block 32 respectively, the upper sliding block 32 is arranged near a limiting plate 24 on the corresponding side of the upper sliding block 32, an upper C-shaped groove 34 capable of accommodating a string pipe 11 is formed in the side portion of the upper sliding block 32, the upper sliding block 32 is sleeved on the string pipe 11 through the upper C-shaped groove 34, the upper C-shaped groove 34 is in sliding fit with the string pipe 11, an upper guide plate 33 is arranged at the top of the upper C-shaped groove 34, the upper guide plate 33 is in limiting fit with the string pipe 11, two oppositely arranged bolt assemblies 5 are fixedly arranged at the bottom of the upper sliding block 32, and the bolt assemblies 5 are opposite to the pin holes 12 formed in the string pipe 11.
The lower yoke mechanism 4 comprises two lower lifting oil cylinders 41, the two lower lifting oil cylinders 41 are respectively arranged on the outer sides of the two upper lifting oil cylinders 31, the bottoms of the two lower lifting oil cylinders 41 are respectively fixedly connected with two sides of the top of a lower sliding block 42, the lower sliding block 42 is arranged near a limiting plate 24 on the corresponding side of the lower sliding block, a lower C-shaped groove 44 capable of containing the string tube 11 is formed in the side part of the lower sliding block 42, the lower C-shaped groove 44 is in sliding fit with the string tube 11, the lower sliding block 42 is sleeved on the string tube 11 through the lower C-shaped groove 44, a lower guide plate 43 is arranged at the bottom of the lower C-shaped groove 44 and is in limiting fit with the string tube 11, a plug pin assembly 5 is horizontally arranged at the bottom of the lower sliding block 42 in a penetrating mode, and the plug pin assembly 5 is just opposite to the pin hole 12 formed in the string tube 11.
The upper lifting oil cylinder 31 works by providing hydraulic oil through an upper yoke power oil source 7, an oil outlet of the upper yoke power oil source 7 is communicated with a first oil inlet of a three-position four-way electric proportional reversing valve, an oil outlet of the three-position four-way electric proportional reversing valve is communicated with an oil inlet of the upper lifting oil cylinder 31, an oil outlet of the upper lifting oil cylinder 31 is communicated with a second oil inlet of the three-position four-way electric proportional reversing valve after passing through a first safety valve 71, and an oil return port of the three-position four-way electric proportional reversing valve is communicated with an oil unloading and return tank after passing through a second safety valve 72;
The lower lifting oil cylinder 41 works by providing hydraulic oil through the lower yoke power oil source 8, an oil outlet of the lower yoke power oil source 8 is communicated with a first oil inlet of a three-position four-way electric proportional reversing valve, an oil outlet of the three-position four-way electric proportional reversing valve is communicated with an oil inlet of the upper lifting oil cylinder 31, an oil outlet of the upper lifting oil cylinder 31 is communicated with a second oil inlet of the three-position four-way electric proportional reversing valve after passing through a first safety valve 71, and an oil return port of the three-position four-way electric proportional reversing valve is communicated with an oil unloading and returning tank after passing through a second safety valve 72.
The lifting system further comprises a two-position four-way electromagnetic directional valve, the oil outlet of the upper yoke power oil source 7 provides hydraulic oil for the upper lifting oil cylinder 31 after passing through the oil inlet and the first working port of the two-position four-way electromagnetic directional valve, and the oil outlet of the lower yoke power oil source 8 provides hydraulic oil for the lower lifting oil cylinder 41 after passing through the second working port and the oil return port of the two-position four-way electromagnetic directional valve.
The bolt assembly 5 comprises a bolt seat 51, a bolt bracket 52, a bolt oil cylinder 53 and a bolt 54, wherein the bolt seat 51 is of a cylindrical structure, the bolt bracket 52 is of a flat plate structure with reinforcing ribs, the end faces of the bolt seat 51 are fixedly connected with the two ends of the bolt bracket 52 through two struts, the middle part of the bolt bracket 52 is fixedly connected with the oil cylinder seat of the bolt oil cylinder 53, a bolt 54 is fixedly arranged on a telescopic rod of the bolt oil cylinder 53, the bolt 54 penetrates through the bolt seat 51, and the bolt 54 is in sliding fit with the inner wall of the bolt seat 51; the plug oil cylinder 53 is communicated with a first oil inlet of a two-position four-way reversing valve through a plug power oil source through hydraulic oil, an oil outlet of the plug power oil source is communicated with a second oil inlet of the two-position four-way reversing valve, and an oil return port of the two-position four-way reversing valve is communicated with an oil discharge and return tank; the bolt assembly 5 further comprises a guide rod 55 and two proximity switches 56, one end of the guide rod 55 is fixedly arranged on the side of the bolt 54, close to the bolt oil cylinder 53, a contact is arranged at the other end of the guide rod 55, the guide rod 55 is arranged in parallel with the inner wall of the bolt seat 51, the two proximity switches 56 are all fixed on the inner wall of the bolt seat 51, the two proximity switches 56 are all arranged under the guide rod 55, the connecting lines of the two proximity switches 56 are parallel to the guide rod 55, and the contact rods of the two proximity switches 56 are in transmission fit with the contact of the guide rod 55.
Example 2
Example 2 is substantially the same as example 1 except that:
The latch assembly 5 further comprises two elastic righting devices 57, the elastic righting devices 57 comprise a spring support 571, a spring 572, a spring guide block 573 and a nylon plate 574, the two elastic righting devices 57 are fixedly arranged on the end face, close to the latch oil cylinder 53, of the latch seat 51 through the spring support 571, the two elastic righting devices 57 are respectively arranged on two sides of the latch support 52, one end of the spring 572 is fixedly connected with the spring support 571, the other end of the spring 572 is fixedly connected with the contact end of the guide rod 55 through the spring guide block 573, the latch assembly 5 further comprises an oil injection pipe 58, and the oil injection pipe 58 is fixedly arranged on the side, close to the latch oil cylinder 53, of the latch 54.
Example 3
Example 3 is substantially the same as example 2 except that:
The anti-rotation mechanism 6 is of a square structure, the anti-rotation mechanism 6 is arranged near the limiting plate 24, two wear-resisting plates 61 are fixedly arranged on the end faces of the anti-rotation mechanism 6 near the limiting plate 24 side, one wear-resisting plate 61 is fixedly arranged on each of the end faces of the two sides of the anti-rotation mechanism 6, and the wear-resisting plates 61 of the upper yoke mechanism are matched with the limiting plate 24.
Claims (9)
1. A continuous truss hydraulic bolt lifting system is characterized in that:
The lifting system includes: truss pile legs (1), pile fixing frames (2), four upper yoke mechanisms (3), four lower yoke mechanisms (4) and a bolt assembly (5); the truss pile leg (1) is sleeved with a pile fixing frame (2), an opening matched with the truss pile leg (1) is formed in the middle of the pile fixing frame (2), the truss pile leg (1) comprises four chord tubes (11) which are mutually parallel, a plurality of pin holes (12) are uniformly distributed on two side parts of the chord tubes (11) from top to bottom, the pin holes (12) are arranged in the horizontal direction, an upper yoke mechanism (3) and a lower yoke mechanism (4) are sequentially sleeved on the chord tubes (11) from top to bottom, the bottom of the pile fixing frame (2) is fixedly connected with a cylinder seat of an upper lifting cylinder (31) arranged at the top of the upper yoke mechanism (3), the bottom of the pile fixing frame (2) is fixedly connected with a cylinder seat of a lower lifting cylinder (41) arranged at the top of the lower yoke mechanism (4), the upper lifting cylinder (31) and the bottom of a telescopic lifting cylinder (41) are respectively provided with two lifting cylinder assemblies (5) which are arranged opposite to each other, and the upper lifting cylinder assemblies (31) and the lower lifting cylinder assemblies (5) are arranged in the same horizontal plane, and the upper lifting cylinder assemblies (5) are matched with each other;
The utility model provides a solid pile frame (2) including lift platform (21), solid pile frame locating hole (22), enclosing wall (23) and limiting plate (24), lift platform (21) is flat plate structure, the rectangular opening with truss spud leg (1) matched with is seted up at the middle part of lift platform (21), solid pile frame locating hole (22) with string tube (11) matched with are seted up in rectangular opening's four corners, the outside of solid pile frame locating hole (22) is provided with enclosing wall (23), the top of enclosing wall (23) and the bottom fixed connection of solid pile frame (2), enclosing wall (23) are square box structure that link up from top to bottom, truss spud leg (1) set up in the passageway of forming at the middle part of enclosing wall (23), the four corners of enclosing wall (23) just set up string tube (11) of its corresponding side respectively, limiting plate (24) are provided with a plurality of four corners that are on a parallel with string tube (11) and limit plate (24), limit plate (24) and upper yoke mechanism (3) and lower yoke mechanism (4) of its corresponding side.
2. The continuous truss hydraulic latch lift system of claim 1 wherein:
The upper yoke mechanism (3) comprises two upper lifting oil cylinders (31), the bottoms of the two upper lifting oil cylinders (31) are fixedly connected with two sides of the top of an upper sliding block (32) respectively, a limiting plate (24) on the corresponding side of the upper sliding block (32) is arranged near the upper sliding block, an upper C-shaped groove (34) capable of containing a string tube (11) is formed in the side portion of the upper sliding block (32), the upper sliding block (32) is sleeved on the string tube (11) through the upper C-shaped groove (34), the upper C-shaped groove (34) is in sliding fit with the string tube (11), an upper guide plate (33) is arranged at the top of the upper C-shaped groove (34), the upper guide plate (33) is in limiting fit with the string tube (11), two oppositely arranged bolt assemblies (5) are fixedly arranged at the bottom of the upper sliding block (32), and the bolt assemblies (5) are arranged right against pin holes (12) formed in the string tube (11).
3. A continuous truss hydraulic latch lift system in accordance with claim 2 wherein:
The lower yoke mechanism (4) comprises two lower lifting cylinders (41), the two lower lifting cylinders (41) are respectively arranged on the outer sides of the two upper lifting cylinders (31), the bottoms of the two lower lifting cylinders (41) are respectively fixedly connected with two sides of the top of the lower sliding block (42), the lower sliding block (42) is arranged near a limiting plate (24) on the corresponding side of the lower sliding block, a lower C-shaped groove (44) capable of containing the string tube (11) is formed in the side portion of the lower sliding block (42), the lower C-shaped groove (44) is in sliding fit with the string tube (11), the lower sliding block (42) is sleeved on the string tube (11) through the lower C-shaped groove (44), a lower guide plate (43) is arranged at the bottom of the lower C-shaped groove (44), the lower guide plate (43) is in limiting fit with the string tube (11), a bolt component (5) is horizontally arranged at the bottom of the lower sliding block (42) in a penetrating mode, and the bolt component (5) is arranged right against a pin hole (12) formed in the string tube (11).
4. A continuous truss hydraulic latch lift system according to claim 3 wherein:
The upper lifting oil cylinder (31) works by providing hydraulic oil through an upper yoke power oil source (7), an oil outlet of the upper yoke power oil source (7) is communicated with a first oil inlet of a three-position four-way electric proportional reversing valve, an oil outlet of the three-position four-way electric proportional reversing valve is communicated with an oil inlet of the upper lifting oil cylinder (31), an oil outlet of the upper lifting oil cylinder (31) is communicated with a second oil inlet of the three-position four-way electric proportional reversing valve after passing through a first safety valve (71), and an oil return port of the three-position four-way electric proportional reversing valve is communicated with an oil unloading and returning box after passing through a second safety valve (72);
The lower lifting oil cylinder (41) works by providing hydraulic oil through a lower yoke power oil source (8), an oil outlet of the lower yoke power oil source (8) is communicated with a first oil inlet of a three-position four-way electric proportional reversing valve, an oil outlet of the three-position four-way electric proportional reversing valve is communicated with an oil inlet of an upper lifting oil cylinder (31), an oil outlet of the upper lifting oil cylinder (31) is communicated with a second oil inlet of the three-position four-way electric proportional reversing valve after passing through a first safety valve (71), and an oil return port of the three-position four-way electric proportional reversing valve is communicated with an oil unloading and return tank after passing through a second safety valve (72).
5. The continuous truss hydraulic latch lift system of claim 4 wherein:
The lifting system further comprises a two-position four-way electromagnetic directional valve, wherein an oil outlet of the upper yoke power oil source (7) provides hydraulic oil for the upper lifting oil cylinder (31) after passing through an oil inlet and a first working port of the two-position four-way electromagnetic directional valve, and an oil outlet of the lower yoke power oil source (8) provides hydraulic oil for the lower lifting oil cylinder (41) after passing through a second working port and an oil return port of the two-position four-way electromagnetic directional valve.
6. A continuous truss hydraulic latch lift system according to any one of claims 1 to 5 wherein:
The bolt assembly (5) comprises a bolt seat (51), a bolt support (52), a bolt oil cylinder (53) and a bolt (54), wherein the bolt seat (51) is of a cylindrical structure, the bolt support (52) is of a flat plate structure with reinforcing ribs, the end faces of the bolt seat (51) are fixedly connected with the two ends of the bolt support (52) through two support posts, the middle part of the bolt support (52) is fixedly connected with the oil cylinder seat of the bolt oil cylinder (53), the bolt (54) is fixedly arranged on a telescopic rod of the bolt oil cylinder (53), the bolt (54) penetrates through the bolt seat (51), and the bolt (54) is in sliding fit with the inner wall of the bolt seat (51);
The plug oil cylinder (53) is communicated with a first oil inlet of the two-position four-way reversing valve through a plug power oil source through hydraulic oil, an oil outlet of the plug power oil source is communicated with a second oil inlet of the two-position four-way reversing valve, and an oil return port of the two-position four-way reversing valve is communicated with an oil discharge return tank.
7. The continuous truss hydraulic latch lift system of claim 6 wherein:
The bolt assembly (5) further comprises a guide rod (55) and two proximity switches (56), one end of the guide rod (55) is fixedly arranged on the side of a near-bolt oil cylinder (53) of the bolt (54), a contact is arranged at the other end of the guide rod (55), the guide rod (55) is arranged in parallel with the inner wall of the bolt seat (51), the two proximity switches (56) are all fixed on the inner wall of the bolt seat (51), the two proximity switches (56) are all arranged under the guide rod (55), the connecting line of the two proximity switches (56) is parallel to the guide rod (55), and the contact rods of the two proximity switches (56) are in transmission fit with the contact heads of the guide rod (55).
8. The continuous truss hydraulic latch lift system of claim 7 wherein:
The bolt subassembly (5) still includes two elasticity righting device (57), elasticity righting device (57) include spring bracket (571), spring (572), spring guide block (573) and nylon board (574), two elasticity righting device (57) are all through spring bracket (571) fixed set up on the terminal surface of bolt hydro-cylinder (53) near bolt seat (51), and two elasticity righting device (57) set up respectively in the both sides of bolt bracket (52), the one end and the spring bracket (571) fixed connection of spring (572), the other end of spring (572) is fixed to be provided with spring guide block (573), spring guide block (573) are through nylon board (574) and the contact end fixed connection of guide bar (55) that set up on it, spring bracket (571) are through spring (572) and guide bar (55) compression fit, bolt subassembly (5) still include annotate bolt (58), annotate oil pipe (58) fixed set up in the nearly hydro-cylinder (53) side of bolt (54).
9. The continuous truss hydraulic latch lift system of claim 8 wherein:
The anti-rotation mechanism is characterized in that anti-rotation mechanisms (6) are fixedly arranged on the upper yoke mechanism (3) and the lower yoke mechanism (4), the anti-rotation mechanisms (6) are of square structures, the anti-rotation mechanisms (6) are arranged near limiting plates (24), two wear-resisting plates (61) are fixedly arranged on the end faces of the anti-rotation mechanisms (6) near the limiting plates (24), one wear-resisting plate (61) is fixedly arranged on each of the end faces of the two sides of the anti-rotation mechanisms (6), and the wear-resisting plates (61) of the upper yoke mechanism are matched with the limiting plates (24).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210332185.0A CN114673128B (en) | 2022-03-31 | 2022-03-31 | Continuous truss hydraulic bolt lifting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210332185.0A CN114673128B (en) | 2022-03-31 | 2022-03-31 | Continuous truss hydraulic bolt lifting system |
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| CN114673128B true CN114673128B (en) | 2024-06-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204080777U (en) * | 2014-07-17 | 2015-01-07 | 武汉船用机械有限责任公司 | A kind of anti-rotational guiding device and hydraulic bolt formula oil cylinder jacking system |
| KR20150076462A (en) * | 2013-12-26 | 2015-07-07 | 재단법인 포항산업과학연구원 | Jack up rig and elevating device for jack up rig |
| CN105442518A (en) * | 2015-12-22 | 2016-03-30 | 西伯瀚（上海）海洋装备科技有限公司 | Lifting device for truss-type hydraulic bolt |
| CN106592560A (en) * | 2016-10-31 | 2017-04-26 | 武汉船用机械有限责任公司 | Hydraulic bolt lifting device |
| CN209162788U (en) * | 2018-11-16 | 2019-07-26 | 中国船舶工业集团公司第七0八研究所 | A kind of novel chord member spud leg hydraulic slide formula lifting device |
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2022
- 2022-03-31 CN CN202210332185.0A patent/CN114673128B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150076462A (en) * | 2013-12-26 | 2015-07-07 | 재단법인 포항산업과학연구원 | Jack up rig and elevating device for jack up rig |
| CN204080777U (en) * | 2014-07-17 | 2015-01-07 | 武汉船用机械有限责任公司 | A kind of anti-rotational guiding device and hydraulic bolt formula oil cylinder jacking system |
| CN105442518A (en) * | 2015-12-22 | 2016-03-30 | 西伯瀚（上海）海洋装备科技有限公司 | Lifting device for truss-type hydraulic bolt |
| CN106592560A (en) * | 2016-10-31 | 2017-04-26 | 武汉船用机械有限责任公司 | Hydraulic bolt lifting device |
| CN209162788U (en) * | 2018-11-16 | 2019-07-26 | 中国船舶工业集团公司第七0八研究所 | A kind of novel chord member spud leg hydraulic slide formula lifting device |
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| CN114673128A (en) | 2022-06-28 |
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