CN107010179A - A kind of Deepwater Risers buoyant device embraces clamp mechanism - Google Patents
A kind of Deepwater Risers buoyant device embraces clamp mechanism Download PDFInfo
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- CN107010179A CN107010179A CN201710301446.1A CN201710301446A CN107010179A CN 107010179 A CN107010179 A CN 107010179A CN 201710301446 A CN201710301446 A CN 201710301446A CN 107010179 A CN107010179 A CN 107010179A
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- Prior art keywords
- lower clamp
- retaining mechanism
- floating holder
- movable lower
- standpipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The present invention provides a kind of Deepwater Risers buoyant device and embraces clamp mechanism, including jig frame, rear floating holder, preceding activity upper fixture, preceding movable lower clamp, the preceding movable right retaining mechanism of lower clamp, the preceding movable left retaining mechanism of lower clamp, rear floating holder retaining mechanism and preceding activity upper fixture retaining mechanism, clamp mechanism will be embraced by the U-shaped load guide rail in jig frame to be connected on riser buoyancy device, and an armful clamp mechanism fixed plate is fixed with riser buoyancy device using bolt, prevent from embracing coming off for clamp mechanism；The present invention embraces standpipe stress ring by jig frame standpipe stress surface, rear floating holder standpipe stress surface, preceding activity upper fixture standpipe stress surface and preceding movable lower clamp standpipe stress surface, TLP platforms standpipe is attached with riser buoyancy device, and all floating holders are locked by retaining mechanism, it is ensured that the reliability of connection.The present invention is with simple in construction, easy to operate, bearing capacity is strong, connection is reliable, the low advantage of manufacturing cost.
Description
Technical field
Clamp mechanism is embraced the present invention relates to a kind of Deepwater Risers buoyant device, belongs to Offshore Platform Construction field.
Background technology
With the development of economic and technical, the mankind are continuously increased to the demand of resource, because marine resources are abundant, ocean money
The exploitation in source has become important development direction, and offshore and gas development be current ocean development engineering main contents it
One.Therefore, offshore platform becomes the capital equipment in current offshore and gas development equipment.
In the 1980s, it is found that tension leg platform (TLP) have it is simple in construction, with compliance, low engineering cost, together
When also there is good stability and security, therefore deeply welcomed by the people, many countries design tension leg that begins one's study is put down
Platform, therefore obtained development at full speed.Why tension leg platform (TLP) can attract attention, and be because tension leg platform (TLP) has anti-evil
Bad environment capacity is strong, exercise performance is good, low engineering cost many advantages, such as.Tension leg platform (TLP) is currently a kind of popular ocean
Platform, the primary structure form of ocean platform is also would is that in following following period of time.
For the demand of ocean deepwater operation, China is increasing the research to deep water platform, but the country is independently ground at present
Do not have tension leg platform (TLP) in the platform of hair, do not research and develop riser buoyancy device yet.
The content of the invention
The invention aims to provide a kind of Deepwater Risers buoyant device to embrace clamp mechanism, belong to tension leg platform (TLP) standpipe
What buoyant device was connected with standpipe embraces clamp mechanism, allows riser buoyancy device quick and is effectively attached with standpipe.
The object of the present invention is achieved like this：Including section be U-shaped jig frame, rear floating holder, it is preceding activity on
Fixture, preceding movable lower clamp, the preceding movable right retaining mechanism of lower clamp, the preceding movable left retaining mechanism of lower clamp, rear floating holder lock
Tight mechanism and preceding activity upper fixture retaining mechanism, the jig frame upper end is provided with U-shaped load guide rail, front end and is provided with a pair
Clamp mechanism fixed plate is embraced, jig frame inner surface setting has before the jig frame standpipe stress surface contacted with standpipe, jig frame
End surface symmetric is provided with before a pair movable lower clamp locking wedge chute, before the both sides of jig frame front end are provided with activity
The right retaining mechanism mounting hole of fixture and the left retaining mechanism mounting hole of preceding movable lower clamp；One is provided with the rear floating holder
Floating holder installs axis hole and the rear floating holder installation axle set by jig frame is installed to by rear floating holder bearing pin afterwards
Kong Zhong, rear floating holder inner surface is set in the rear floating holder standpipe stress surface contacted with standpipe, the preceding activity upper fixture
It is equipped with a preceding activity upper fixture installation axis hole, the preceding movable lower clamp and is provided with before one movable lower clamp installation axle
Hole, the preceding movable lower clamp and preceding activity upper fixture share a preceding floating holder and install bearing pin and pacified by preceding floating holder
Dress bearing pin is installed to the preceding floating holder set by jig frame and installed in axis hole, and preceding movable lower clamp is pressed from both sides in preceding activity
The lower section of tool, the inner surface of preceding activity upper fixture, the inner surface of preceding movable lower clamp are in the preceding activity contacted with standpipe respectively
Fixture standpipe stress surface, preceding movable lower clamp standpipe stress surface.
The present invention also has following characteristics：
1. preceding activity lower clamp right retaining mechanism, the preceding movable left retaining mechanism of lower clamp, rear floating holder retaining mechanism and
Preceding activity upper fixture retaining mechanism includes locking sleeve, the push rod being arranged in locking sleeve, the locking for setting push rod one end
Wedge, the set lever for being arranged on the push rod other end, one end of the locking sleeve are that the end of thread, the other end are connection ends,
The push rod is stepped, and the push rod supporting surface coordinated with push rod cascaded surface, and the locking are provided with the set lever
The locking screw coordinated with the end of thread is provided with handle, and is pressed from both sides under the preceding movable right retaining mechanism of lower clamp, preceding activity
The end for having the set lever of left retaining mechanism is respectively arranged with preceding movable lower clamp unblock ROV operation handles, the preceding activity
Before the connection end of the locking sleeve of the right retaining mechanism of lower clamp is welded in the right retaining mechanism mounting hole of movable lower clamp, preceding activity
The locking wedge of the right retaining mechanism of lower clamp is slided before one in movable lower clamp locking wedge chute, the preceding activity
Before the connection end of the locking sleeve of the left retaining mechanism of lower clamp is welded in the left retaining mechanism mounting hole of movable lower clamp, preceding activity
The locking wedge of the left retaining mechanism of lower clamp is slided before another in movable lower clamp locking wedge chute, described rear living
The connection end of the locking sleeve of dynamic fixture is welded in rear floating holder retaining mechanism mounting hole, the locking wedge shape of rear floating holder
Block is moved on the rami posterior inferior support face of jig frame, and rear floating holder retaining mechanism mounting hole is arranged on the rear end of jig frame,
Before the connection end of the locking sleeve of the preceding activity upper fixture retaining mechanism is welded in activity upper fixture retaining mechanism mounting hole,
Preceding activity upper fixture retaining mechanism mounting hole is before being arranged on movable lower clamp, and the locking of preceding activity upper fixture retaining mechanism is wedge-shaped
Block is moved on the upper surface of preceding movable lower clamp.
Compared with prior art, the beneficial effects of the invention are as follows：Armful clamp mechanism of the present invention passes through U-shaped in jig frame
Load guide rail will embrace clamp mechanism and be connected on riser buoyancy device, and be filled armful clamp mechanism fixed plate with riser buoyancy using bolt
Put and be fixed, prevent from embracing coming off for clamp mechanism；Described armful of clamp mechanism is stood by jig frame standpipe stress surface, rear floating holder
Pipe stress surface, preceding activity upper fixture standpipe stress surface and preceding movable lower clamp standpipe stress surface embrace standpipe stress ring, so that real
The purpose for being now attached TLP platforms standpipe and riser buoyancy device, and all floating holders are locked by retaining mechanism, protect
Demonstrate,prove the reliability of connection.
The present invention's embraces that clamp mechanism and riser buoyancy device be easy to connect, reliable and uniform force, embraces clamp mechanism and standpipe
Connect because the unique self-locking performance for embracing folder mode and fixture of fixture has marine easy to connect, easy to implement, safe and reliable, carrying
The features such as ability is strong, has great significance to the research that China's tension leg platform (TLP) installs equipment.
Brief description of the drawings
Structural representation when Fig. 1 is embraces clamp mechanism unlatching；
Structural representation when Fig. 2 is preceding movable lower clamp locking
Fig. 3 is structural representation when armful clamp mechanism is closed and locked；
Fig. 4 is front view when armful clamp mechanism is closed and locked；
Fig. 5 is A-A sectional views when armful clamp mechanism is closed and locked；
Fig. 6 is B-B sectional views when armful clamp mechanism is closed and locked；
Structure sectional view when Fig. 7 is embraces clamp mechanism armful folder standpipe；
Fig. 8 is jig frame top view structural representation；
Fig. 9 is jig frame bottom view structural representation；
Figure 10 is the right locking mechanism structure schematic diagram of preceding movable lower clamp；
Figure 11 is the left locking mechanism structure schematic diagram of preceding movable lower clamp；
Figure 12 is rear floating holder locking mechanism structure schematic diagram；
Figure 13 is preceding activity upper fixture locking mechanism structure schematic diagram；
Figure 14 is rear floating holder structural representation；
Figure 15 is preceding activity upper fixture structural representation；
Figure 16 is preceding movable lower clamp structural representation；
Figure 17 is preceding movable lower clamp set lever structure sectional view；
Sectional view when Figure 18 is preceding movable lower clamp set lever locking；
In figure：1 jig frame, 11U type load guide rails, 12 armfuls of clamp mechanism fixed plates, movable lower clamp locking wedge shape before 13
Block chute, 14 jig frame standpipe stress surfaces, floating holder is installed the movable right retaining mechanism of lower clamp before axis hole, 16 and installed before 15
Floating holder is installed behind axis hole, 110 after supporting surface in bottom support surface before hole, 17 jig frames, 18 jig frames, 19 jig frames
Floating holder retaining mechanism mounting hole, the left retaining mechanism mounting hole of movable lower clamp before 111,112 jig frame rami posterior inferiors support face,
Floating holder after 2, floating holder standpipe stress surface after 21, floating holder wedge stress surface after 22, floating holder following table after 23
Face, after 24 floating holder install before activity upper fixture before floating holder upper surface behind axis hole, 25,3,31 activity upper fixture standpipe by
Power face, activity upper fixture lower surface before 32, activity upper fixture wedge stress surface before 33, activity upper fixture installs axis hole before 34,
Activity upper fixture upper surface before 35, movable lower clamp before 4, movable lower clamp standpipe stress surface before 41, before 42 on movable lower clamp
Surface, the left wedge stress surface of movable lower clamp before 43, the right wedge stress surface of movable lower clamp before 44, activity upper fixture before 45
Retaining mechanism mounting hole, movable lower clamp wedge seating surface before 46, movable lower clamp installs that activity before axis hole, 5 is lower to press from both sides before 47
Have movable lower clamp set lever, 511 handle locking screw threads, 512 handle push rod supporting surfaces, 513 handles before right retaining mechanism, 51
Handrail, 514 handle pad supporting surfaces, movable lower clamp locks movable lower clamp before right push rod, 521 and locks right push rod shaft before 52
Shoulder, movable lower clamp locks movable lower clamp before right sleeve pipe, 531 and locks movable lower clamp lock before right sleeve pipe welding ends, 532 before 53
Tight right casing threads end, movable lower clamp locking wedge before 54, movable lower clamp locking wedge lozenges before 541, before 55
Movable lower clamp set lever stop nut, movable lower clamp unblock ROV operation handles before 56,57 pads, movable lower clamp before 6
Left retaining mechanism, movable lower clamp locks movable lower clamp before left push rod, 63 and locks movable lower clamp before left sleeve pipe, 631 before 62
Lock movable lower clamp before left sleeve pipe welding ends, 632 and lock activity on floating holder retaining mechanism behind left casing threads end, 7,71
Fixture locking handle, floating holder locking push rod after 72, floating holder locking sleeve after 73, floating holder locking sleeve after 731
Welding ends, the floating holder locking sleeve end of thread after 732, floating holder locking wedge on 74, floating holder locking wedge on 741
Shape block lozenges, floating holder set lever stop nut on 75, activity upper fixture retaining mechanism before 8, activity upper fixture before 82
Lock activity upper fixture before activity upper fixture locking sleeve welding ends before activity upper fixture locking sleeve before push rod, 83,831,832
The locking sleeve end of thread, floating holder bearing pin before 9, floating holder bearing pin after 10.120 standpipes.121 standpipe stress rings.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1 to 5, the present invention provides one kind and can be attached tension leg platform (TLP) riser buoyancy device and standpipe
Embrace clamp mechanism, allow riser buoyancy device quick and be effectively attached with standpipe, pass through ROV during dismounting under water
Disassembling section can be completed.This armful of clamp mechanism includes jig frame 1, rear floating holder 2, preceding activity upper fixture 3, preceding movable lower clamp
4th, the right retaining mechanism 5 of preceding movable lower clamp, the preceding movable left retaining mechanism 6 of lower clamp, rear floating holder retaining mechanism 7 and preceding activity
Upper fixture retaining mechanism.
Clamp mechanism is embraced to connect the U-shaped load guide rail that the U-shaped load guide rail 11 in jig frame is inserted into riser buoyancy device
Receive and be attached on Cao, and clamp mechanism fixed plate 12 will be embraced using bolt and be fixed with riser buoyancy device, embrace clamp mechanism and lead to
Cross jig frame standpipe stress surface 14, rear floating holder standpipe stress surface 21, preceding activity upper fixture standpipe stress surface 31 and preceding work
Dynamic lower clamp standpipe stress surface 41 embraces standpipe stress ring 121, completes to embrace the connection of clamp mechanism and standpipe, and by under preceding activity
The preceding work on preceding movable lower clamp locking wedge 54 and the right retaining mechanism 6 of preceding movable lower clamp on the right retaining mechanism 5 of fixture
Movable lower clamp 4 before dynamic lower clamp locking wedge 54 is locked, is locked by the upper floating holder on rear floating holder retaining mechanism 7
Floating holder 2 after tight wedge 74 is locked, wedge 74 is locked by the upper floating holder on preceding activity upper fixture retaining mechanism 8
Activity upper fixture 3 before locking, so that the stable connection for embracing clamp mechanism and standpipe is reliable.
There is floating holder after one that axis hole 24 is installed after wherein on floating holder 2, installed by rear floating holder bearing pin 10
Rear floating holder to jig frame 1 is installed on axis hole 19, and rear activity upper fixture 2 can be rotated around rear floating holder bearing pin 10,
There can only be small movement vertically.
There is a preceding activity upper fixture that axis hole 34 is installed in preceding activity upper fixture 3, be installed to by preceding floating holder bearing pin 9
The preceding floating holder of jig frame 1 is installed on axis hole 15, wherein preceding activity upper fixture 3 can be rotated around preceding floating holder bearing pin 9,
There can only be small movement vertically.
There is movable lower clamp before one that axis hole 47 is installed on preceding movable lower clamp 4, be installed to by preceding floating holder bearing pin 9
The preceding floating holder of jig frame 1 is installed on axis hole 15, and preceding movable lower clamp 4 can be rotated around preceding floating holder bearing pin 9, preceding work
Dynamic lower clamp 4 shares a preceding floating holder with preceding activity upper fixture 3 and installs bearing pin 9, and preceding movable lower clamp 4 is pressed from both sides in preceding activity
The lower section of tool 3.
The preceding right retaining mechanism 5 of movable lower clamp includes preceding movable lower clamp set lever 51, the preceding movable lower clamp locking right side
Push rod 52, preceding movable lower clamp lock right sleeve pipe 53, preceding movable lower clamp locking wedge 54, preceding movable lower clamp set lever
Stop nut 55 and preceding movable lower clamp unblock ROV operation handles 56, wherein preceding movable lower clamp locks right sleeve pipe 53 before
Movable lower clamp locking wedge 54 one end is sleeve pipe welding ends 531, and the other end locks right casing threads for preceding movable lower clamp
End 532.
Movable lower clamp before the mode that preceding movable right one end of push rod 52 of lower clamp locking is connected through a screw thread or welded is connected
Wedge 54 is locked, it is the preceding movable lower clamp of connection at multi-diameter shaft, multi-diameter shaft that preceding movable lower clamp, which locks the right other end of push rod 52,
Set lever 51, preceding movable lower clamp set lever 51 can lock right push rod 52 around preceding movable lower clamp and freely rotate but axial direction
It can only move a certain distance, preceding movable lower clamp locks end at the multi-diameter shaft of right push rod 52 and is fixedly connected with preceding movable lower clamp solution
ROV operation handles 56 are locked, it is axially free in preceding movable lower clamp locks right sleeve pipe 53 that preceding movable lower clamp locks right push rod 52
Mobile, handle locking screw thread 511 can when current active lower clamp set lever 51 is close to preceding movable lower clamp locking right sleeve pipe 53
Right casing threads end 532 is locked with movable lower clamp before being screwed into.
The preceding left retaining mechanism 6 of movable lower clamp is identical with the described preceding movable right structure of retaining mechanism 5 of lower clamp, simply exists
It is somewhat different in the size of sleeve pipe and push rod.
Floating holder retaining mechanism 7 is identical with the described preceding movable right structure type of retaining mechanism 5 of lower clamp afterwards, different
It is that rear floating holder retaining mechanism 7 eliminates ROV operation handles, fixture locking compared with the preceding movable right retaining mechanism 5 of lower clamp
Wedge shape is block-shaped to be changed.
Preceding activity upper fixture retaining mechanism 8 is identical with the described rear structure of floating holder retaining mechanism 7, simply in sleeve pipe and
It is somewhat different in the size of push rod.
The right sleeve pipe welding ends 531 of preceding movable lower clamp locking that preceding movable lower clamp locks right sleeve pipe 53 is welded to preceding activity
On the right retaining mechanism mounting hole 16 of lower clamp, preceding movable lower clamp locks right push rod 52 through the right retaining mechanism of preceding movable lower clamp
Mounting hole 16 is moved freely inside it, and preceding movable lower clamp locking wedge 54 is in preceding movable lower clamp locking wedge chute
Slided in 13, preceding movable lower clamp set lever 51 is in the outside of jig frame 1.
The left sleeve pipe welding ends 631 of preceding movable lower clamp locking that preceding movable lower clamp locks left sleeve pipe 63 is welded to preceding activity
On the left retaining mechanism mounting hole 111 of lower clamp, preceding movable lower clamp locks right push rod 52 through the right locking machine of preceding movable lower clamp
Structure mounting hole 16 is moved freely inside it, the preceding movable lower clamp locking wedge in the preceding movable left retaining mechanism 6 of lower clamp
54 slide in preceding movable lower clamp locking wedge chute 13, and preceding movable lower clamp set lever 51 is in the outer of jig frame 1
Portion.
The rear floating holder locking sleeve welding ends 731 on floating holder locking sleeve 73 is welded to rear floating holder lock afterwards
On tight mechanism mounting hole 110, rear floating holder locking push rod 72 is through rear floating holder retaining mechanism mounting hole 110 inside it
Move freely, upper floating holder locking wedge 74 is moved on jig frame rami posterior inferior support face 112, and upper floating holder locks hand
Handle 71 is in the outside of jig frame 1.
Preceding activity upper fixture locking sleeve welding ends 831 on preceding activity upper fixture locking sleeve 831 is welded to preceding activity
On upper fixture retaining mechanism mounting hole 45, preceding activity upper fixture locking push rod 82 passes through preceding activity upper fixture retaining mechanism mounting hole
45 move freely inside it, and the upper floating holder locking wedge 74 on preceding activity upper fixture retaining mechanism 8 is under preceding activity
Moved on fixture upper surface 42, upper floating holder set lever 71 is in the outside of jig frame 1.
An armful clamp mechanism is connected to riser buoyancy by the clamp mechanism of embracing of the present invention by the U-shaped load guide rail 11 in jig frame
On device, and an armful clamp mechanism fixed plate 12 is fixed with riser buoyancy device using bolt, described armful of clamp mechanism passes through folder
Have under framework standpipe stress surface 14, rear floating holder standpipe stress surface 21, preceding activity upper fixture standpipe stress surface 31 and preceding activity
Fixture standpipe stress surface 41 embraces standpipe stress ring 121, so that standpipe be attached with embracing clamp mechanism.
Embrace after clamp mechanism is attached with standpipe 120 by the preceding movable right retaining mechanism 5 of lower clamp and preceding movable lower clamp
Movable lower clamp 4 before preceding movable lower clamp locking wedge 54 on left retaining mechanism 6 is locked, machine is locked by rear floating holder
Floating holder 2 after upper floating holder locking wedge 74 on structure is locked, passes through the upper work on preceding activity upper fixture retaining mechanism 8
Activity upper fixture 3 before dynamic fixture locking wedge 74 is locked.
Specifically, embrace clamp mechanism and the connection of standpipe is accomplished by the following way：
1. armful clamp mechanism is opened, as shown in figure 3, now preceding activity upper fixture 3, preceding movable lower clamp 4 and rear floating holder 2
It is movable, can arbitrarily rotates, standpipe 120 is entered in front of armful clamp mechanism in the jig frame 1 for embracing clamp mechanism, is
Standpipe 120 is facilitated smoothly to enter from clamp mechanism front is embraced in jig frame 1, preceding movable lower clamp 4 and preceding activity upper fixture 3 should turn
To position as shown in Figure 3, rear floating holder 2 should also go to the position touched less than standpipe stress ring 121.
2. standpipe 120 enters in the jig frame 1 for embracing clamp mechanism, make standpipe stress ring 121 in jig frame standpipe stress
At a certain distance from the top of face 14, movable lower clamp 4 clasps standpipe 120 before rotating, before promoting in the right retaining mechanism 5 of movable lower clamp
Preceding movable lower clamp set lever 51 and movable lower clamp locks right casing threads end before handle locking screw thread 511 is screwed into
On 532, activity lower clamp is locked right push rod 52 and is moved along before now preceding movable lower clamp set lever 51 can be promoted, current living
Dynamic lower clamp locking wedge 54 moves a certain distance rear preceding movable lower clamp locking wedge lozenges 541 and starts to extrude preceding work
The right wedge stress surface 44 of dynamic lower clamp, the left locking of movable lower clamp before the movable left retaining mechanism 6 of lower clamp makes before similarly operating
The left wedge stress surface 43 of movable lower clamp, fixture before preceding movable lower clamp locking wedge lozenges 541 in mechanism 6 is extruded
Framework standpipe stress surface 14 is taper surface, now, jig frame standpipe stress surface 14 with preceding activity upper fixture standpipe stress surface 31
With preceding activity upper fixture standpipe stress surface 31 on a conical surface, the locking of movable lower clamp 4 before completing.Preceding movable lower clamp 4
By preceding movable lower clamp set lever 51, movable lower clamp locks right sleeve pipe 53 in the past and preceding movable lower clamp locks a left side after locking
Screwed down on sleeve pipe 63, when preceding movable lower clamp set lever 51 is screwed out because preceding movable lower clamp set lever 51 and before under activity
Activity lower clamp is locked right push rod 52 and will not and then moved before fixture locking handle stop nut 55 is also not in contact with, under preceding activity
The self-locking performance that fixture locks wedge 54 by preceding movable lower clamp completes the locking of fixture, now embraces clamp mechanism as shown in Figure 2.
3. declining standpipe, standpipe stress ring 121 is set to fall in jig frame standpipe stress surface 14 and preceding activity upper fixture standpipe
On stress surface 31, the upper surface of standpipe stress ring 121 and lower surface are taper surface, now jig frame standpipe stress surface 14 with
Preceding activity upper fixture standpipe stress surface 31 supports the lower surface of standpipe stress ring 121, floating holder retaining mechanism 7 after promotion jointly
On upper floating holder set lever 71, and upper floating holder set lever 71 is screwed into the rear floating holder locking sleeve end of thread
On 732, floating holder locking push rod 72 and upper floating holder locking wedge 74 after upper floating holder set lever 71 will be promoted
Move forward together, after the upper floating holder locking wedge lozenges 741 on upper floating holder locking wedge 74 will be extruded
Floating holder wedge stress surface 22 makes rear floating holder 2 be rotated to standpipe, and rear floating holder standpipe stress surface 21 is close to standpipe
The upper surface of stress ring 121, is moved up so as to limit standpipe, the upper work before similarly promoting on activity upper fixture retaining mechanism 8
Activity upper fixture standpipe stress surface 31 is close to the upper surface of standpipe stress ring 121 before dynamic fixture locking handle 71 makes, and completes standpipe
Embrace folder, floating holder 2 in preceding activity with pressing from both sides after the locking of rear floating holder retaining mechanism 7 and preceding activity upper fixture retaining mechanism 8
Upper floating holder set lever 71 need not be backed out after tool 3, now standpipe stress ring 121 is in rear floating holder standpipe stress surface
21st, jig frame standpipe stress surface 14, preceding movable lower clamp standpipe stress surface 41 and preceding activity upper fixture standpipe stress surface 31
It can not be moved under limitation, it is achieved thereby that the connection of clamp mechanism and standpipe is embraced, as shown in Fig. 3, Fig. 5 and Fig. 7.
Specifically, the operation of set lever is realized by following principle：
With reference to Figure 18, it can be seen that the preceding movable right locking state of retaining mechanism 5 of lower clamp.Activity is lower before during locking presss from both sides
Activity lower clamp is locked the right push rod shaft shoulder 521 and moved forward before handle push rod supporting surface 512 on tool set lever 51 is withstood, when
Handle locking screw thread 511 can increase thrust when movable lower clamp locks right casing threads end 532 before being screwed into by worm drive
Make floating holder locking tighter.Back-outing preceding movable lower clamp set lever 51 after locking makes preceding movable lower clamp lock right push rod
52 will not and then exit, and current active lower clamp set lever 51 can lock right push rod after back-outing completely in preceding movable lower clamp
Moved freely on 52, but preceding movable lower clamp set lever 51 is displaced outwardly certain distance back handle pad support face 514 and will pushed up
Movable lower clamp locks right push rod 52 before firmly pad 57 can not depart from.
Specifically, rear floating holder 2 is to complete to lock by following principle with preceding activity upper fixture 3：
With reference to Fig. 5 and Fig. 7, after upper floating holder locking wedge 74 is locked floating holder 2 and preceding activity upper fixture 3 it
Before, rear floating holder lower surface 23 is contacted with jig frame rami posterior inferior support face 112, preceding activity upper fixture lower surface 32 and preceding activity
Lower clamp upper surface 42 is contacted, rear floating holder upper surface 25 and preceding activity upper fixture upper surface 35 and supporting surface in jig frame
There is gap between 18, the floating holder wedge stress surface 22 after upper floating holder locking wedge lozenges 741 is extruded
During with preceding activity upper fixture wedge stress surface 33, rear floating holder 2 and preceding activity upper fixture 3 are rotated to standpipe, rear activity folder
It is lozenges to have wedge stress surface 22 and preceding activity upper fixture wedge stress surface 33, when after floating holder standpipe stress surface 21
During with the upper surface of standpipe stress ring 121, on the inclined-plane and standpipe stress ring 121 of rear floating holder wedge stress surface 22
Inclined-plane after extruding is lower jointly floating holder 2 will move up and make rear floating holder upper surface 25 and supporting surface 18 in jig frame
Contact, rear floating holder 2 is supported in upper floating holder locking wedge lozenges 741, standpipe stress ring 121 and jig frame
It can not be moved under the extruding in 18 3 faces in face, it is achieved thereby that the locking of rear floating holder 2, same to go up floating holder locking wedge
Activity upper fixture 3 can also be locked before when shape block lozenges 741 extrudes preceding activity upper fixture wedge stress surface 33.
Claims (2)
1. a kind of Deepwater Risers buoyant device embraces clamp mechanism, it is characterised in that：It is U-shaped jig frame, rear activity including section
Fixture, preceding activity upper fixture, preceding movable lower clamp, the preceding movable right retaining mechanism of lower clamp, the preceding movable left retaining mechanism of lower clamp,
Floating holder retaining mechanism and preceding activity upper fixture retaining mechanism afterwards, the jig frame upper end is provided with U-shaped load guide rail, preceding
End is provided with a pair armfuls of clamp mechanism fixed plates, and jig frame inner surface setting has the jig frame standpipe stress contacted with standpipe
Face, jig frame front end face is symmetrically arranged with before a pair movable lower clamp locking wedge chute, the both sides of jig frame front end
The movable right retaining mechanism mounting hole of lower clamp and the left retaining mechanism mounting hole of preceding movable lower clamp before being provided with；Activity folder after described
It is provided with tool after one after floating holder installs axis hole and be installed to by rear floating holder bearing pin set by jig frame
Floating holder install axis hole in, rear floating holder inner surface is the rear floating holder standpipe stress surface contacted with standpipe, it is described before
It is provided with activity upper fixture on a preceding activity upper fixture installation axis hole, the preceding movable lower clamp and is provided with activity before one
Lower clamp installs axis hole, and the preceding movable lower clamp and preceding activity upper fixture share a preceding floating holder and install bearing pin and pass through
Preceding floating holder is installed bearing pin and is installed in the preceding floating holder installation axis hole set by jig frame, and preceding movable lower clamp position
In the lower section of preceding activity upper fixture, the inner surface of preceding activity upper fixture, the inner surface of preceding movable lower clamp are connect with standpipe respectively
Tactile preceding activity upper fixture standpipe stress surface, preceding movable lower clamp standpipe stress surface.
2. a kind of Deepwater Risers buoyant device according to claim 1 embraces clamp mechanism, it is characterised in that：Preceding movable lower clamp
Right retaining mechanism, the preceding movable left retaining mechanism of lower clamp, rear floating holder retaining mechanism and preceding activity upper fixture retaining mechanism are equal
Including locking sleeve, the push rod being arranged in locking sleeve, the locking wedge that push rod one end is set, it is arranged on the push rod other end
Set lever, one end of the locking sleeve is that the end of thread, the other end are connection ends, and the push rod is stepped, the lock
The push rod supporting surface coordinated with push rod cascaded surface is provided with tight handle, and is provided with the set lever and the end of thread
The locking screw of cooperation, and in the preceding movable right retaining mechanism of lower clamp, the set lever of the preceding movable left retaining mechanism of lower clamp
End movable lower clamp unblock ROV operation handles, the lock sleeve of the right retaining mechanism of the preceding movable lower clamp before being respectively arranged with
Before the connection end of pipe is welded in the right retaining mechanism mounting hole of movable lower clamp, the locking wedge of the preceding movable right retaining mechanism of lower clamp
Shape block is slided before one in movable lower clamp locking wedge chute, the lock sleeve of the left retaining mechanism of the preceding movable lower clamp
Before the connection end of pipe is welded in the left retaining mechanism mounting hole of movable lower clamp, the locking wedge of the preceding movable left retaining mechanism of lower clamp
Shape block is slided before another in movable lower clamp locking wedge chute, the connection end of the locking sleeve of the rear floating holder
It is welded in rear floating holder retaining mechanism mounting hole, the locking wedge of rear floating holder supports face in the rami posterior inferior of jig frame
Upper movement, rear floating holder retaining mechanism mounting hole is arranged on the rear end of jig frame, the preceding activity upper fixture retaining mechanism
Locking sleeve connection end be welded on before in activity upper fixture retaining mechanism mounting hole, preceding activity upper fixture retaining mechanism is installed
Hole is before being arranged on movable lower clamp, and the locking wedge of preceding activity upper fixture retaining mechanism is in the upper surface of preceding movable lower clamp
Upper movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301446.1A CN107010179B (en) | 2017-05-02 | 2017-05-02 | Clamping mechanism of buoyancy device of deepwater vertical pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301446.1A CN107010179B (en) | 2017-05-02 | 2017-05-02 | Clamping mechanism of buoyancy device of deepwater vertical pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107010179A true CN107010179A (en) | 2017-08-04 |
| CN107010179B CN107010179B (en) | 2023-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710301446.1A Active CN107010179B (en) | 2017-05-02 | 2017-05-02 | Clamping mechanism of buoyancy device of deepwater vertical pipe |
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| Country | Link |
|---|---|
| CN (1) | CN107010179B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180064A (en) * | 2022-07-29 | 2022-10-14 | 广船国际有限公司 | Pile fixing guide structure and ship |
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| CN206664889U (en) * | 2017-05-02 | 2017-11-24 | 哈尔滨工程大学 | A kind of Deepwater Risers buoyant device clamping mechanism |
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| FR2069845A1 (en) * | 1969-11-06 | 1971-09-10 | Philippe Robert | Welding boiler work hoops - for making cylindrical containers |
| WO1990003250A1 (en) * | 1988-09-20 | 1990-04-05 | Henrik Knudsen | A device for fixing work pieces |
| DE102004020637B3 (en) * | 2004-04-27 | 2005-11-10 | Tilman Heinrich | Connecting system for three-dimensional tubular structures uses threaded tension lock with tie rod and ball head bearing engaging in axially aligned elongated holes in tubular upright |
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| CN104653943A (en) * | 2015-01-22 | 2015-05-27 | 哈尔滨工程大学 | Double-seal hydraulic telescopic grouting clamp for underwater jacket |
| CN206664889U (en) * | 2017-05-02 | 2017-11-24 | 哈尔滨工程大学 | A kind of Deepwater Risers buoyant device clamping mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180064A (en) * | 2022-07-29 | 2022-10-14 | 广船国际有限公司 | Pile fixing guide structure and ship |
| CN115180064B (en) * | 2022-07-29 | 2023-06-16 | 广船国际有限公司 | Pile fixing guide structure and ship |
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| Publication number | Publication date |
|---|---|
| CN107010179B (en) | 2023-06-09 |
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