阅读说明：本技术 适用于海底钻机绳索取心钻具的挂钩式快捷拆装内管总成 (Hook type quick-dismounting inner pipe assembly suitable for submarine drilling rig rope core drilling tool ) 是由 王佳亮 孙杨 彭奋飞 钱弟垒 于 2021-03-12 设计创作，主要内容包括：本发明公开了一种适用于海底钻机绳索取心钻具的挂钩式快捷拆装内管总成,包括弹卡组件、单动组件、挂钩式拆装装置及内管,所述的弹卡组件与单动组件连接,挂钩式拆装装置包括挂钩接头、压缩弹簧、弹簧导正座、滑套及钩罩接头；单动组件通过内管接头与挂钩接头连接；挂钩接头与内管接头上分别设有弹簧孔及弹簧盲孔；压缩弹簧一端与弹簧盲孔底部连接,另一端与弹簧导正座连接；滑套套在挂钩接头上,滑套的圆柱销穿过挂钩接头上的长直孔；弹簧导正座支撑在圆柱销上；挂钩接头设有两个对称挂钩；圆柱销上下移动能驱动两个挂钩绕铰接副转动实现对钩罩接头的抓捕和脱钩；钩罩接头与内管连接。本发明结构简单,操作快捷,可满足内管总成快速拆装的需求。(The invention discloses a hook type quick dismounting inner pipe assembly suitable for a submarine drilling rig rope core drill, which comprises an elastic clamping component, a single-action component, a hook type dismounting device and an inner pipe, wherein the elastic clamping component is connected with the single-action component; the single-acting component is connected with the hook joint through the inner pipe joint; the hook joint and the inner pipe joint are respectively provided with a spring hole and a spring blind hole; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the sliding sleeve is sleeved on the hook joint, and a cylindrical pin of the sliding sleeve penetrates through a long straight hole in the hook joint; the spring guide seat is supported on the cylindrical pin; the hook joint is provided with two symmetrical hooks; the cylindrical pin moves up and down to drive the two hooks to rotate around the hinge pair to capture and unhook the hook cover joint; the hook cover joint is connected with the inner pipe. The quick assembling and disassembling device is simple in structure and quick to operate, and can meet the requirement of quick assembling and disassembling of the inner pipe assembly.)

1. The utility model provides a swift dismouting inner tube assembly of couple formula suitable for seafloor drilling rig wire line coring drilling tool, includes bullet card subassembly, single action subassembly, couple formula dismouting device and inner tube, bullet card subassembly and single action subassembly be connected characterized by: the hook type dismounting device comprises a hook joint, a compression spring, a spring guide seat, a sliding sleeve and a hook cover joint; the single-acting component is connected with the hook joint through the inner pipe joint; the hook joint and the inner pipe joint are respectively provided with a spring hole and a spring blind hole, and the spring hole is communicated and coaxial with the spring blind hole; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the hook joint is provided with a long straight hole, and the length direction of the long straight hole is along the axial direction of the inner pipe; the sliding sleeve is sleeved on the hook joint, a pin hole is formed in the sliding sleeve, a cylindrical pin is arranged in the pin hole, the axis of the cylindrical pin is perpendicular to the central line of the inner pipe, and the cylindrical pin penetrates through a long straight hole in the hook joint; the spring guide seat is supported on the cylindrical pin; the hook joint is provided with two symmetrical hook grooves, and a hook is hinged in each hook groove; the hooks are provided with waist-shaped holes, the cylindrical pin penetrates through the waist-shaped holes on the two hooks, and the cylindrical pin can drive the two hooks to rotate around the hinge pair by moving up and down to realize the catching and unhooking of the hook cover joint; the upper end of the inner hole of the hook cover joint is provided with an inward flange which can be meshed with the hook; the hook cover joint is connected with the inner pipe.

2. The quick release inner tube assembly as defined in claim 1, further comprising: the spring is led positive seat bottom and is equipped with the arc recess, the cylindric lock inlays in the arc recess.

3. The quick release inner tube assembly as defined in claim 1, further comprising: the spring guide seat is provided with a hook groove II corresponding to the hook groove, and the hook groove II can prevent the hook from interfering with the spring guide seat when rotating.

4. The quick release inner tube assembly as defined in claim 1, further comprising: the hook cover joint be equipped with the multiunit through-hole, every group through-hole includes the through-hole that two symmetries set up, in two couples can interlock into a set of through-hole, prevent that couple and hook cover joint from rotating relatively.

5. The quick release inner tube assembly as defined in claim 4, wherein said inner tube assembly comprises: when the hook is meshed with the hook cover joint, a gap is reserved between the lower end of the sliding sleeve and the bottom of the through hole.

Technical Field

The invention relates to a hook type quickly-disassembled and assembled inner pipe assembly suitable for a submarine drilling rig rope core drill.

Background

As the mineral resources on land are gradually depleted, the ocean resources become potential alternative energy sources for the future socioeconomic development due to the huge reserves. At present, the seabed core drilling operation mainly has two forms, which are large drilling ship sampling and seabed drilling machine sampling respectively. The submarine drilling rig is a type of highly automated and modular submarine sampling equipment which is remotely controlled on a mother ship deck through an armored cable. Compared with the sampling by using a large drilling ship, the submarine drilling rig has the characteristics of high operating efficiency, strong concealment, low requirement on mother ship configuration and the like, and has wide application prospect in the field of marine geological exploration.

The inner pipe assembly which is commonly used at present and is suitable for the wire line core drill of the submarine drilling rig comprises an elastic clamping component, a single-action component and an inner pipe, and the elastic clamping component, the single-action component and the inner pipe are all connected by threads. Compared with land drilling, seabed drilling is limited by sites, rapid assembly and disassembly of the inner pipe assembly are inconvenient to carry out on the seabed due to the threaded connection mode, all required inner pipe assemblies need to be placed to the seabed together before operation at each time, and after drilling is finished at each time, the elastic clamping assembly and the single-action assembly in the upper end of each inner pipe assembly need to be maintained at the sea, so that auxiliary operation time of offshore operation is prolonged. In addition, because the weight of the whole machine is strictly limited when the seabed drilling operation is carried out at each time, the number of the inner pipe assemblies which can be carried is directly related to the weight of a single inner pipe assembly, and the total number of the inner pipe assemblies which can be carried is reduced when the single inner pipe assembly is overweight, so that the effective coring capability of the seabed drilling machine is directly influenced.

Disclosure of Invention

In order to solve the technical problems, the invention provides the hook type quick dismounting and mounting inner pipe assembly which is simple in structure, quick to operate and capable of meeting the quick dismounting and mounting requirements and is suitable for the submarine drilling rig rope core drilling tool.

The technical scheme adopted by the invention is as follows: the utility model provides a swift dismouting inner tube assembly of couple formula suitable for seafloor drilling rig wire line coring drilling tool, includes bullet card subassembly, single action subassembly, couple formula dismouting device and inner tube, bullet card subassembly and single action subassembly be connected characterized by: the hook type dismounting device comprises a hook joint, a compression spring, a spring guide seat, a sliding sleeve and a hook cover joint; the single-acting component is connected with the hook joint through the inner pipe joint; the hook joint and the inner pipe joint are respectively provided with a spring hole and a spring blind hole, and the spring hole is communicated and coaxial with the spring blind hole; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the hook joint is provided with a long straight hole, and the length direction of the long straight hole is along the axial direction of the inner pipe; the sliding sleeve is sleeved on the hook joint, a pin hole is formed in the sliding sleeve, a cylindrical pin is arranged in the pin hole, the axis of the cylindrical pin is perpendicular to the central line of the inner pipe, and the cylindrical pin penetrates through a long straight hole in the hook joint; the spring guide seat is supported on the cylindrical pin; the hook joint is provided with two symmetrical hook grooves, and a hook is hinged in each hook groove; the hooks are provided with waist-shaped holes, the cylindrical pin penetrates through the waist-shaped holes on the two hooks, and the cylindrical pin can drive the two hooks to rotate around the hinge pair by moving up and down to realize the catching and unhooking of the hook cover joint; the upper end of the inner hole of the hook cover joint is provided with an inward flange which can be meshed with the hook; the hook cover joint is connected with the inner pipe.

In the quickly disassembled and assembled inner pipe assembly suitable for the submarine drilling rig wire coring drilling tool, the bottom of the spring guide seat is provided with the arc-shaped groove, and the cylindrical pin is embedded in the arc-shaped groove.

In the quickly disassembled and assembled inner pipe assembly suitable for the submarine drilling rig rope core drill, the spring guide seat is provided with a hook groove II corresponding to the hook groove, and the hook groove II can prevent the hook from interfering with the spring guide seat when rotating.

In the quick dismounting inner pipe assembly suitable for the submarine drilling rig wire coring drilling tool, the hook cover joint is provided with a plurality of groups of through holes, each group of through holes comprises two symmetrically arranged through holes, and the two hooks can be meshed into one group of through holes to prevent the hooks and the hook cover joint from rotating relatively.

In the quick dismounting inner pipe assembly suitable for the submarine drilling rig wire coring drilling tool, when the hook is meshed with the hook cover joint, a gap is reserved between the lower end of the sliding sleeve and the bottom of the through hole.

Compared with the prior art, the invention has the beneficial effects that:

1) the inner pipe assembly is simple in structure, the existing threaded connection mode is replaced by the mode that the hook and the hook cover flange are meshed with each other, and the submarine drilling machine can rapidly disassemble the inner pipe assembly on the seabed by means of the mechanical arm and the rotary chuck. Therefore, the upper end of the inner pipe assembly is matched with the inner pipes rapidly, so that the total weight of the inner pipe assembly is reduced, the number of the inner pipes is increased on the premise that the rated weight of the submarine drilling rig is not changed, and the effective coring depth of the submarine drilling rig is increased.

2) The hook is arranged in the hook groove of the hook joint, and the sliding sleeve for controlling the movement of the hook is free from other external forces except the rotating force of the cylindrical pin on the sliding sleeve during drilling operation, so that the risk of accidental unhooking in the drilling process is reduced, and the hook joint has the advantage of high reliability.

3) Compared with the inner pipe assembly of the existing submarine drilling rig rope core drilling tool, the invention greatly reduces the maintenance time and labor workload of all the drilling tools carried at sea after drilling because the carrying quantity of the upper end of the inner pipe assembly is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of an inner tube assembly of the present invention.

Fig. 2 is a cross-sectional view of the hook attaching and detaching device of the present invention.

Fig. 3 is an exploded view of the hook-type attaching and detaching device of the present invention.

Fig. 4 is a schematic view of the hook structure of the present invention.

Fig. 5 is a schematic view of the hook cover structure of the present invention.

FIG. 6 is an assembly view of the inner tube of the present invention.

Fig. 7 is a schematic view of the inner tube of the present invention removed.

In the figure: 3-a hook joint; 4-compression spring; 5-a spring guide seat; 6-pin; 7-cylindrical pins; 8-a sliding sleeve; 9-hanging hooks; 10-hook cover joint; 11-an inner tube; 021-inner tube fitting; 031-a spring chamber; 091-kidney shaped hole; 092-hook bevel; 101-a flange; 102-through holes.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, the present invention comprises a latch assembly 1, a single action assembly 2, a hook type dismounting device and an inner tube 11. The elastic clamping component 1 is connected with the single-action component 2, and the hook type quick dismounting device comprises a hook connector 3, a compression spring 4, a spring guide seat 5, a pin 6, a cylindrical pin 7, a sliding sleeve 8, a hook 9 and a hook cover connector 10. The single acting component 2 is connected with the hook joint 3 through the inner pipe joint 021; the hook joint 3 and the inner pipe joint 021 are respectively provided with a spring hole 031 and a spring blind hole, and the spring hole 031 is communicated with and coaxial with the spring blind hole. One end of the compression spring 4 is connected with the bottom of the spring blind hole, and the other end is connected with the spring guide seat 5. The hook joint 3 is provided with a long straight hole, and the length direction of the long straight hole is along the axis direction of the inner pipe. The sliding sleeve 8 is sleeved on the hook connector 3, a pin hole is formed in the sliding sleeve 8, a cylindrical pin 7 is arranged in the pin hole, the axis of the cylindrical pin 7 is perpendicular to the central line of the inner pipe, and the cylindrical pin 7 penetrates through a long straight hole in the hook connector 3. The bottom of the spring guide seat 5 is provided with an arc-shaped groove, and the spring guide seat 5 is supported on the cylindrical pin 7; the cylindrical pin 7 is embedded in the arc-shaped groove.

The hook connector 3 is provided with two symmetrical hook grooves, and a hook 9 is hinged in each hook groove through a pin 6. The hooks 9 are provided with kidney-shaped holes 091, the cylindrical pin 7 penetrates through the kidney-shaped holes 091 in the two hooks 9, and the cylindrical pin 7 moves up and down to drive the two hooks 9 to rotate around the hinge pair (pin 6) to capture and unhook the hook cover joint 10; the spring guide seat 5 is provided with a hook groove II corresponding to the hook groove, and the hook groove II can prevent the hook 7 from interfering with the spring guide seat 5 when rotating. The upper end of the inner hole of the hook cover joint 10 is provided with an inward flange 101, and the flange 101 can be meshed with the hook 9. In order to prevent the hook 9 and the hook cover joint 10 from rotating relatively, a plurality of groups of through holes are arranged on the hook cover joint 10, each group of through holes comprises two through holes 102 which are symmetrically arranged, and the two hooks 9 can be meshed into one group of through holes. When the hook 9 is meshed with the hook cover joint 10, a gap is reserved between the lower end of the sliding sleeve 8 and the bottom of the through hole 102. The hook cover joint 10 is connected to the inner pipe 11.

The specific application method of the invention is as follows:

the method comprises the following installation steps: as shown in fig. 6, the main manipulator of the subsea drilling rig takes out the lower end of the inner pipe assembly formed by connecting the inner pipe 11 and the hook cover joint 10 by screw threads from the drilling tool magazine, moves above the rotary chuck of the subsea drilling rig, and makes the lower end of the inner pipe assembly, the rotary chuck and the upper end of the inner pipe assembly hooked by the fishing mechanism pulled by the steel wire rope on the same axis, the rotary chuck moves upwards to clamp the inner pipe 11, the main manipulator is removed, and then the fishing mechanism is pulled by the steel wire rope to make the upper end of the inner pipe assembly move downwards axially; until the flange 101 of the hook cover tab 10 encounters the hook ramp 092 of the hook 9. Continuing the axial movement, the flange 101 applies a reaction force to the hook inclined plane 092 in the radial direction, the hook 9 rotates by a certain angle with the pin 6 as the center, and the kidney-shaped hole 091 drives the cylindrical pin 7 to compress the compression spring 4. When the flange 101 is not in contact with the hook inclined plane 092 any longer, the hook 9 is restored to a closed state under the reset action of the compression spring 4, at this time, whether the hook 9 is completely clamped into the through hole 102 of the hook cover connector 10 can be observed through the submarine camera, if not, the rotation of the single-action assembly can be limited by clamping the hook 9 through the auxiliary mechanical arm of the submarine drilling machine, then the rotating chuck of the submarine drilling machine drives the inner pipe 11 to rotate, so that the hook 9 is completely clamped into the through hole 102, and the installation is completed.

The invention comprises the following disassembly steps: as shown in fig. 7, after the inner pipe assembly is fished out, the mechanical arm of the subsea drilling machine displaces the inner pipe assembly above the rotating chuck of the subsea drilling machine, and the rotating chuck moves upwards to clamp the inner pipe 11 and remove the mechanical arm; then, a sliding sleeve 8 of the hook type quick dismounting device is clamped to slide upwards by using the auxiliary manipulator of the submarine drilling rig, the sliding sleeve 8 drives a hook 9 connected with the sliding sleeve through a cylindrical pin 7 to rotate, the hook 9 is separated from a hook cover joint 10 to realize the dismounting of the hook type quick dismounting device, and the dismounting of the inner pipe assembly is completed.