Protective cap delivering and clamping device for submarine drilling rig
Technical Field
The utility model belongs to the technical field of the subsea drilling machine, a subsea drilling machine is delivered with helmet and clamping device is related to.
Background
With the continuous deepening of exploration and development technologies in China, many important seabed resources are buried under sediments, such as deepwater oil gas, natural gas hydrate and the like. From the point of view of marine geology, under blue seawater, only the marine ridge and part of the sea mountain expose hard rock, and more than 90% of the sea bottom surface is covered by soft sediments, and drilling coring is one of the important means for geological investigation of marine engineering. At present, sediment seabed drilling machines applied at home and abroad sample on the surface layer of the seabed, the functions and the structure of the sediment seabed drilling machines can not adapt to continuous multi-section drilling and coring operation of seabed deep sediments at all, single-cylinder coring can only be realized by entering the sea once, the sampling length is shallow, and the requirements of the continuous multi-section drilling and coring operation of the deep sediments can not be met.
At present, China is still in a blank state in the aspects of design and manufacturing technology of a special submarine drilling machine for sediment drilling and coring and key corollary equipment thereof.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a subsea drilling machine delivers with clamping device with helmet has realized delivering and the centre gripping of helmet.
The utility model adopts the technical proposal that the protective cap delivery and clamping device for the submarine drilling rig comprises a delivery mechanism assembly and a clamping mechanism assembly;
the delivery mechanism assembly comprises a rack, the rack is provided with a chute, a sliding base is arranged in the chute and can slide in the chute, an oil cylinder is also arranged on the rack, two sides of the rack are both fixed with limiting blocks, and the limiting blocks are provided with through holes;
the fixture assembly includes the cylinder cavity with sliding base fixed connection, a plurality of windows have been seted up to cylinder cavity lateral wall, the cylinder cavity is connected with the head end of arc binding clip, the head end shape of arc binding clip suits with cylinder cavity lateral wall shape, be fixed with tong teeth a on the arc binding clip head end, tong teeth a is located partial window, the end and the piston rod of hydro-cylinder of arc binding clip are connected, the cylinder cavity has the otic placode, the otic placode has tong teeth b pull rod one end through the round pin hub connection, the tong teeth b pull rod other end has L type pull rod through the round pin hub connection, L type pull rod passes the through-hole of stopper, and L type pull rod can slide in the through-hole of stopper, be fixed with tong teeth b on the tong teeth b pull rod, tong teeth b is located other windows.
The utility model is also characterized in that,
the window is provided with four altogether, and jaw a is provided with two, and jaw b pull rod all are provided with two, and two jaw a and two jaw b are located the same circumference of cylinder cavity, and four windows use the centre of a circle of jaw a place circumference as symmetrical center central symmetry setting.
And the limiting blocks are provided with adjusting bolts.
The sliding base is provided with a reinforcing plate, and the cylindrical cavity is fixedly connected with the reinforcing plate.
The frame is provided with four support legs.
The utility model has the advantages that:
the utility model relates to a protective cap delivering and clamping device for a submarine drilling rig, which has reasonable structural layout and economic and effective power distribution; the structure is simple, the safety and the reliability are realized, and the delivery and clamping functions of the protective cap are effectively realized; the device overcomes the defects of ultra-deep water and ultra-high pressure environment and effectively realizes the good operation of the underwater transmission device.
Drawings
Fig. 1 is a front view of a helmet delivery and gripping device for a subsea drilling rig according to the present invention;
fig. 2 is a top view of the cap delivery and gripping device for a subsea drilling rig of the present invention;
fig. 3 is a partial sectional view of the cap delivery and clamping device of the present invention shown in fig. 2.
In the figure, 1, an oil cylinder, 2, a sliding base, 3, a frame, 4, a limiting block, 5, an L-shaped pull rod, 6, a jaw a, 7, a cylindrical cavity, 8, a jaw b, 9, a jaw b pull rod, 10, an arc-shaped tong head and 11, a protective cap are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a helmet delivery and clamping device for a submarine drilling rig, which comprises a delivery mechanism assembly and a clamping mechanism assembly, as shown in figures 1-2;
the delivery mechanism assembly comprises a frame 3, four support legs are arranged at the bottom of the frame 3, the frame 3 is provided with a sliding chute, a sliding base 2 is arranged in the sliding chute, the sliding base 2 can slide in the sliding chute, the sliding base 2 is provided with a reinforcing plate, an oil cylinder 1 is further arranged on the frame 3, two sides of the frame 3 are both fixed with limiting blocks 4, the limiting blocks 4 are provided with through holes, and adjusting bolts are arranged on the limiting blocks 4;
the clamping mechanism assembly comprises a cylindrical cavity 7 fixedly connected with a reinforcing plate on the sliding base 2, four windows are arranged on the side wall of the cylindrical cavity 7, the cylindrical cavity 7 is connected with the head end of an arc-shaped tong head 10, the shape of the head end of the arc-shaped tong head 10 is matched with the shape of the side wall of the cylindrical cavity 7, two tong teeth a6 are fixed on the head end of the arc-shaped tong head 10, two tong teeth a6 are respectively positioned in the two windows, the tail end of the arc-shaped tong head 10 is connected with a piston rod of the oil cylinder 1, the cylindrical cavity 7 is provided with two lug plates, the two lug plates are respectively connected with one end of a tong teeth b pull rod 9 through pin shafts, the other end of the tong teeth b pull rod 9 is respectively connected with an L-shaped pull rod 5 through a pin shaft, the L-shaped pull rod 5 passes through a through hole of a limiting block 4, the L-shaped pull rod 5 can slide in the through hole of the limiting block 4, as shown in figure 3, the two pincers a6 and the two pincers b8 are located on the same circumference of the cylindrical cavity 7, and the four windows are arranged in a centrosymmetric mode by taking the circle center of the circumference where the pincers a6 are located as the symmetric center.
The utility model relates to a submarine drilling machine delivers with helmet and clamping device's working process specifically as follows:
the utility model discloses a stabilizer blade of frame 3 is installed in submarine drilling machine base main part, it is tight to pass through the manipulator with the drilling rod after the well drilling is accomplished, treat the well head drilling rod and get the core drilling rod and throw off the back, at first go into cylinder cavity 7 with the helmet 11 in helmet storehouse down, then hydro-cylinder 1 drive arc binding clip 10 drives cylinder cavity 7 and reachs the well head center, this moment because under stopper 4's effect, two symmetrical arrangement's L type pull rod 5 will stimulate tong b pull rod 9 in step, thereby make tong a6, tong b8 voltage-sharing tight helmet 11, then accomplished the helmet 11 and delivered well head center and pressed from both sides tightly, the drilling rod can realize screwing of helmet 11 and drilling rod in the effect below of screwing mechanism this moment, the sealed pressurize of drilling tool has been realized.
In this way, the utility model relates to a subsea drilling machine is with helmet delivery and clamping device has effectively realized the delivery and the clamping function of helmet; the device overcomes the defects of ultra-deep water and ultra-high pressure environment and effectively realizes the good operation of the underwater transmission device.