CN206664889U - A kind of Deepwater Risers buoyant device clamping mechanism - Google Patents
A kind of Deepwater Risers buoyant device clamping mechanism Download PDFInfo
- Publication number
- CN206664889U CN206664889U CN201720478558.XU CN201720478558U CN206664889U CN 206664889 U CN206664889 U CN 206664889U CN 201720478558 U CN201720478558 U CN 201720478558U CN 206664889 U CN206664889 U CN 206664889U
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- lower clamp
- retaining mechanism
- floating holder
- movable lower
- upper fixture
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Abstract
The utility model provides a kind of Deepwater Risers buoyant device clamping mechanism, including jig frame, rear floating holder, preceding activity upper fixture, preceding movable lower clamp, the right retaining mechanism of preceding movable lower clamp, preceding movable lower clamp left retaining mechanism, rear floating holder retaining mechanism and preceding activity upper fixture retaining mechanism, clamping mechanism is connected on riser buoyancy device by the U-shaped load guide rail in jig frame, and clamping mechanism fixed plate and riser buoyancy device are fixed using bolt, prevent coming off for clamping mechanism；The utility model 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 and riser buoyancy device are attached, and all floating holders are locked by retaining mechanism, ensure the reliability of connection.The utility model has the advantages such as simple in construction, easy to operate, bearing capacity is strong, connection is reliable, manufacturing cost is low.
Description
Technical field
A kind of Deepwater Risers buoyant device clamping mechanism is the utility model is related to, 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 enrich, 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) with 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
Many advantages, such as bad environment capacity is strong, exercise performance is good, low engineering cost.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, without research and development riser buoyancy device yet.
The content of the invention
The purpose of this utility model is to provide for a kind of Deepwater Risers buoyant device clamping mechanism, belongs to tension leg platform (TLP)
The clamping mechanism that riser buoyancy device is connected with standpipe, allow riser buoyancy device quick and effectively connected with standpipe
Connect.
What the purpose of this utility model was realized in：It is U-shaped jig frame, rear floating holder, preceding work including section
Dynamic upper fixture, preceding movable lower clamp, the right retaining mechanism of preceding movable lower clamp, the left retaining mechanism of preceding movable lower clamp, rear activity folder
Have retaining mechanism and preceding activity upper fixture retaining mechanism, the jig frame upper end is provided with U-shaped load guide rail, front end is provided with
A pair of clamping mechanism fixed plates, jig frame inner surface setting have the jig frame standpipe stress surface contacted with standpipe, jig frame
Frame front end face movable lower clamp locking wedge chute before being symmetrically arranged with a pair, the both sides of jig frame front end are provided with preceding work
The dynamic right retaining mechanism mounting hole of lower clamp and the left retaining mechanism mounting hole of preceding movable lower clamp；It is provided with after described on floating holder
Floating holder mounting shaft hole and rear floating holder set by jig frame is installed to by rear floating holder bearing pin pacified after one
Fill in axis hole, rear floating holder inner surface is the rear floating holder standpipe stress surface contacted with standpipe, the preceding activity upper fixture
On be provided with a preceding activity upper fixture mounting shaft hole, movable lower clamp installation before being provided with one on the preceding movable lower clamp
Axis hole, the preceding movable lower clamp share a preceding floating holder installation bearing pin with preceding activity upper fixture and pass through preceding floating holder
Installation bearing pin is installed in the preceding floating holder mounting shaft hole set by jig frame, and preceding movable lower clamp is in preceding activity
The lower section of fixture, the inner surface of preceding activity upper fixture, the inner surface of preceding movable lower clamp are the preceding activity contacted with standpipe respectively
Upper fixture standpipe stress surface, preceding movable lower clamp standpipe stress surface.
The utility model also has following characteristics：
1. the right retaining mechanism of preceding movable lower clamp, the left retaining mechanism of preceding movable 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 right retaining mechanism of preceding movable 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, movable before described
Before the connection end of the locking sleeve of the right retaining mechanism of lower clamp is welded in the movable right retaining mechanism mounting hole of lower clamp, preceding activity
The locking wedge of the right retaining mechanism of lower clamp slides before one in movable lower clamp locking wedge chute, movable before described
Before the connection end of the locking sleeve of the left retaining mechanism of lower clamp is welded in the movable left retaining mechanism mounting hole of lower clamp, preceding activity
The locking wedge of the left retaining mechanism of lower clamp slides before another in movable lower clamp locking wedge chute, living after described
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 moves 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,
Before preceding activity upper fixture retaining mechanism mounting hole is arranged on movable lower clamp, the locking wedge shape of preceding activity upper fixture retaining mechanism
Block moves on the upper surface of preceding movable lower clamp.
Compared with prior art, the beneficial effects of the utility model are：Clamping mechanism of the present utility model passes through jig frame
Clamping mechanism is connected on riser buoyancy device by the U-shaped load guide rail on frame, and using bolt by clamping mechanism fixed plate with
Riser buoyancy device is fixed, and prevents coming off for clamping mechanism；The clamping mechanism by jig frame standpipe stress surface, after
Floating holder standpipe stress surface, preceding activity upper fixture standpipe stress surface and preceding movable lower clamp standpipe stress surface embrace standpipe stress
Ring, so as to realize the purpose for being attached TLP platforms standpipe and riser buoyancy device, and all work are locked by retaining mechanism
Dynamic fixture, ensure the reliability of connection.
Clamping mechanism of the present utility model and riser buoyancy device are easy to connect, reliable and uniform force, clamping mechanism with
Standpipe connection because the unique self-locking performance for embracing folder mode and fixture of fixture has it is marine it is easy to connect, easy to implement, safe and reliable,
The features such as bearing capacity is strong, the research that equipment is installed to China's tension leg platform (TLP) have great significance.
Brief description of the drawings
Fig. 1 is structural representation when clamping mechanism is opened；
Structural representation when Fig. 2 locks for preceding movable lower clamp
Fig. 3 is structural representation when clamping mechanism is closed and locked；
Fig. 4 is front view when clamping mechanism is closed and locked；
Fig. 5 is A-A sectional views when clamping mechanism is closed and locked；
Fig. 6 is B-B sectional views when clamping mechanism is closed and locked；
Fig. 7 is structure sectional view when clamping mechanism embraces folder standpipe；
Fig. 8 is jig frame top view structural representation；
Fig. 9 is jig frame bottom view structural representation；
Figure 10 is the preceding movable right locking mechanism structure schematic diagram of lower clamp；
Figure 11 is the preceding movable left locking mechanism structure schematic diagram of 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 clamping mechanism fixed plates, movable lower clamp locking wedge shape before 13
Block chute, 14 jig frame standpipe stress surfaces, floating holder mounting shaft hole before 15, the movable right retaining mechanism installation of lower clamp before 16
Hole, bottom support surface before 17 jig frames, supporting surface in 18 jig frames, floating holder mounting shaft hole after 19 jig frames, after 110
Floating holder retaining mechanism mounting hole, the movable left retaining mechanism mounting hole of 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, floating holder mounting shaft hole after 24, after 25 floating holder upper surface, activity upper fixture before 3, before 31 activity upper fixture standpipe by
Power face, before 32 activity upper fixture lower surface, activity upper fixture wedge stress surface before 33, activity upper fixture mounting shaft 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 movable left wedge stress surface of lower clamp before 43, the movable right wedge stress surface of lower clamp before 44, activity upper fixture before 45
Retaining mechanism mounting hole, movable lower clamp wedge seating surface before 46, movable lower clamp mounting shaft hole before 47, activity is lower before 5 presss from both sides
Have a right retaining mechanism, movable lower clamp set lever before 51,511 handle locking screw threads, 512 handle push rod supporting surfaces, 513 handles
Handrail, 514 handle pad supporting surfaces, movable lower clamp locks right push rod before 52, and movable lower clamp locks right push rod shaft before 521
Shoulder, movable lower clamp locks right sleeve pipe before 53, and movable lower clamp locks right sleeve pipe welding ends before 531, movable lower clamp lock before 532
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 left push rod before 62, and movable lower clamp locks left sleeve pipe before 63, movable lower clamp before 631
Lock left sleeve pipe welding ends, movable lower clamp locks left casing threads end before 632, floating holder retaining mechanism after 7, activity on 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
Push rod is locked, activity upper fixture locking sleeve before 83, activity upper fixture locking sleeve welding ends before 831, activity upper fixture before 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 utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1 to 5, the utility model provides one kind and can carry out tension leg platform (TLP) riser buoyancy device and standpipe
The clamping mechanism of connection, allow riser buoyancy device quick and be effectively attached with standpipe, pass through under water during dismounting
ROV can complete disassembling section.The clamping mechanism includes jig frame 1, rear floating holder 2, preceding activity upper fixture 3, preceding activity
Lower clamp 4, the right retaining mechanism 5 of preceding movable lower clamp, the left retaining mechanism 6 of preceding movable lower clamp, the rear and of floating holder retaining mechanism 7
Preceding activity upper fixture retaining mechanism.
The U-shaped load guide rail that U-shaped load guide rail 11 in jig frame is inserted into riser buoyancy device by clamping mechanism connects
Receive and be attached on Cao, and clamping mechanism fixed plate 12 and riser buoyancy device are fixed using bolt, clamping mechanism is led 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 the connection of clamping 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 of clamping mechanism and standpipe is reliable.
Floating holder mounting shaft hole 24 after having one on floating holder 2 after wherein, is installed by rear floating holder bearing pin 10
Onto the rear floating holder mounting shaft hole 19 of jig frame 1, rear activity upper fixture 2 can rotate around rear floating holder bearing pin 10,
There can only be small movement vertically.
There is a preceding activity upper fixture mounting shaft hole 34 in preceding activity upper fixture 3, be installed to by preceding floating holder bearing pin 9
In the preceding floating holder mounting shaft hole 15 of jig frame 1, wherein preceding activity upper fixture 3 can rotate around preceding floating holder bearing pin 9,
There can only be small movement vertically.
Movable lower clamp mounting shaft hole 47 before having one on preceding movable lower clamp 4, is installed to by preceding floating holder bearing pin 9
In the preceding floating holder mounting shaft hole 15 of jig frame 1, preceding movable lower clamp 4 can rotate around preceding floating holder bearing pin 9, preceding work
Dynamic lower clamp 4 shares a preceding floating holder installation bearing pin 9 with preceding activity upper fixture 3, and preceding movable lower clamp 4 presss 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.
Preceding movable lower clamp locks movable lower clamp before the mode that right one end of push rod 52 is connected through a screw thread or welded connects
Lock wedge 54, it be multi-diameter shaft that preceding movable lower clamp, which locks the right other end of push rod 52, movable lower clamp before connection at multi-diameter shaft
Set lever 51, preceding movable lower clamp set lever 51 can freely be rotated around the right push rod 52 of preceding movable lower clamp locking 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 to be screwed into preceding movable lower clamp.
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 and passes through the preceding movable right retaining mechanism of lower clamp
Mounting hole 16 moves 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 and passes through the preceding movable right locking machine of lower clamp
Structure mounting hole 16 moves 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 moves 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.
Clamping mechanism is connected to standpipe by clamping mechanism of the present utility model by the U-shaped load guide rail 11 in jig frame
On buoyant device, and clamping mechanism fixed plate 12 and riser buoyancy device are fixed using bolt, the clamping mechanism is led 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, so as to which standpipe and clamping mechanism are attached.
Clamping mechanism and standpipe 120 be attached after 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, the connection of clamping mechanism and standpipe is accomplished by the following way：
1. clamping 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 to enter in front of clamping mechanism in the jig frame 1 of clamping mechanism, is
Standpipe 120 is facilitated smoothly to enter in front of clamping mechanism 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 of clamping 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 rotation, before promotion in the movable right retaining mechanism 5 of 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, now preceding movable lower clamp set lever 51 can promote preceding movable lower clamp to lock right push rod 52 and be moved along, current living
Preceding movable lower clamp locks wedge lozenges 541 and starts to extrude preceding work after dynamic lower clamp locking wedge 54 moves a certain distance
The right wedge stress surface 44 of dynamic lower clamp, the movable left locking of lower clamp before the movable left retaining mechanism 6 of lower clamp makes before similarly operating
The movable left wedge stress surface 43 of lower clamp before preceding movable lower clamp locking wedge lozenges 541 in mechanism 6 extrudes, fixture
Framework standpipe stress surface 14 and preceding activity upper fixture standpipe stress surface 31 are taper surface, now, jig frame standpipe stress surface 14
With preceding activity upper fixture standpipe stress surface 31 on a conical surface, the locking of movable lower clamp 4 before completion.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 screws out because before movable lower clamp set lever 51 and before under activity
Fixture locking handle stop nut 55, which is also not in contact with preceding movable lower clamp, which locks right push rod 52, and then to move, under preceding activity
Fixture locks the locking of the self-locking performance completion fixture of wedge 54 by preceding movable lower clamp, and now clamping mechanism is 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 promote
Move forward together, after the upper floating holder locking wedge lozenges 741 on upper floating holder locking wedge 74 will extrude
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, 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, after the locking of rear floating holder retaining mechanism 7 and preceding activity upper fixture retaining mechanism 8 floating holder 2 with it is preceding it is movable on press from both sides
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 clamping mechanism and standpipe, 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.Preceding activity is lower during locking presss from both sides
Movable 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 during the movable right casing threads end 532 of lower clamp locking 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
Firmly pad 57 can not depart from the right push rod 52 of preceding movable lower clamp locking.
Specifically, rear floating holder 2 is to complete to lock by following principle with preceding activity upper fixture 3：
With reference to figure 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 contacts with jig frame rami posterior inferior support face 112, preceding activity upper fixture lower surface 32 and preceding activity
Lower clamp upper surface 42 contacts, 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 extrudes
During with preceding activity upper fixture wedge stress surface 33, rear floating holder 2 and preceding activity upper fixture 3 rotate 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 support 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)
- A kind of 1. Deepwater Risers buoyant device clamping 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 right retaining mechanism of preceding movable lower clamp, the left retaining mechanism of preceding movable lower clamp, Floating holder retaining mechanism and preceding activity upper fixture retaining mechanism afterwards, the jig frame upper end are provided with U-shaped load guide rail, preceding End is provided with a pair of clamping mechanism fixed plates, and jig frame inner surface setting has the jig frame standpipe stress contacted with standpipe Face, jig frame front end face movable lower clamp locking wedge chute, both sides of jig frame front end before being symmetrically arranged with a pair 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 Floating holder mounting shaft hole and after being installed to by rear floating holder bearing pin set by jig frame after one is provided with tool In floating holder mounting shaft hole, rear floating holder inner surface is the rear floating holder standpipe stress surface contacted with standpipe, before described A preceding activity upper fixture mounting shaft hole is provided with activity upper fixture, it is movable before being provided with one on the preceding movable lower clamp Lower clamp mounting shaft hole, the preceding movable lower clamp share a preceding floating holder installation bearing pin with preceding activity upper fixture and passed through Preceding floating holder installation bearing pin is installed in the preceding floating holder mounting shaft 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.
- A kind of 2. Deepwater Risers buoyant device clamping mechanism according to claim 1, it is characterised in that：Preceding movable lower clamp Right retaining mechanism, the left retaining mechanism of preceding movable 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 preceding movable lower clamp right retaining mechanism, the set lever of the preceding movable left retaining mechanism of lower clamp End movable lower clamp unblock ROV operation handles, lock sleeve of the preceding movable right retaining mechanism of lower clamp before being respectively arranged with Before the connection end of pipe is welded in the movable right retaining mechanism mounting hole of lower clamp, the locking wedge of the preceding movable right retaining mechanism of lower clamp Shape block slides before one in movable lower clamp locking wedge chute, the lock sleeve of the preceding movable left retaining mechanism of lower clamp Before the connection end of pipe is welded in the movable left retaining mechanism mounting hole of lower clamp, the locking wedge of the preceding movable left retaining mechanism of lower clamp Shape block slides 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 are 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 installation Before hole is arranged on movable lower clamp, 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 |
|---|---|---|---|
| CN201720478558.XU CN206664889U (en) | 2017-05-02 | 2017-05-02 | A kind of Deepwater Risers buoyant device clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478558.XU CN206664889U (en) | 2017-05-02 | 2017-05-02 | A kind of Deepwater Risers buoyant device clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206664889U true CN206664889U (en) | 2017-11-24 |
Family
ID=60371818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720478558.XU Withdrawn - After Issue CN206664889U (en) | 2017-05-02 | 2017-05-02 | A kind of Deepwater Risers buoyant device clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206664889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010179A (en) * | 2017-05-02 | 2017-08-04 | 哈尔滨工程大学 | A kind of Deepwater Risers buoyant device embraces clamp mechanism |
-
2017
- 2017-05-02 CN CN201720478558.XU patent/CN206664889U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010179A (en) * | 2017-05-02 | 2017-08-04 | 哈尔滨工程大学 | A kind of Deepwater Risers buoyant device embraces clamp mechanism |
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