CN213063475U

CN213063475U - Offshore drilling rig damping device

Info

Publication number: CN213063475U
Application number: CN202022019319.2U
Authority: CN
Inventors: 赵志刚; 袁建滨; 韦林; 王立晗
Original assignee: Fujian Yongfu Power Engineering Co Ltd
Current assignee: Fujian Yongfu Power Engineering Co Ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-04-27
Anticipated expiration: 2030-09-15

Abstract

The utility model relates to a damping device for offshore drilling machine, which comprises a drilling machine and a base, wherein the drilling machine is arranged on the base, and the rear side edge of the bottom plate of the drilling machine is hinged with the rear side of the base; the side all is provided with damping shock attenuation module about the base is anterior, damping shock attenuation module includes mount pad, spring damping subassembly and extension spring damping subassembly, the left side of base, right side are fixed one respectively the mount pad, install on the mount pad spring damping subassembly and extension spring damping subassembly with the bottom plate of rig is connected. The device mainly comprises a base, a spring and a tension spring, wherein the base is connected with the drilling machine by using a hinge at the rear side of the drilling machine, and the base is connected with the drilling machine by using the spring and tension spring combination at the front side of the drilling machine.

Description

Offshore drilling rig damping device

Technical Field

The utility model relates to a marine exploration equipment technical field, especially a marine drilling machine damping device.

Background

With the development of society, politics and economy in China, the role of marine exploration in a new round of coastal large development is more prominent, a large amount of cross-sea bridge engineering, offshore wind power engineering, ports and offshore engineering are put forward on schedule, and marine exploration projects are increased.

In the traditional offshore drilling operation, a base of a drilling machine is fixed on a ship construction platform in a rigid connection mode, and due to the fact that sea wind and wave are high and urgent, tide fluctuation and ocean current are complex and variable, a construction ship is severe in fluctuation and shaking, and construction conditions are extremely severe. The drilling machine is influenced by fluctuation and shaking of a construction ship in the drilling process, the drill rod and the drilling machine reciprocate up and down, so that the drilling machine frequently pushes up and presses down, the bit pressure change is caused, the drilling efficiency of the drilling machine is influenced, meanwhile, the drill rod, the drilling tool and parts in the drilling machine are greatly lost, the service lives of the drill rod, the drilling tool and the drilling machine are shortened, potential safety hazards in operation are generated, even the drilling machine cannot drill and is forced to stop, and the great economic loss is caused. The offshore weather is complicated and changeable, the construction time of each day is very precious, limited time is fully utilized, the drilling machine is guaranteed to reliably and continuously run during construction, the defects of the prior art are overcome under the background, the offshore drilling machine damping device is designed through repeated groping and practice, the device enables the drilling machine to be in elastic connection with the base, when the drilling machine is jacked and pressed down in the drilling process, the drilling machine is cushioned and damped due to elastic soft connection, and the influence of adverse conditions such as sea surge fluctuation and the like on drilling construction is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide a damping device for offshore drilling machines,

the embodiment of the utility model provides an in adopt following scheme to realize: the damping device comprises a drilling machine and a base, wherein the drilling machine is arranged on the base, and the rear side edge of a bottom plate of the drilling machine is hinged with the rear side of the base; the damping and shock-absorbing module is arranged on the left side and the right side of the front part of the base and comprises a mounting seat, a spring damping component and a tension spring damping component, the mounting seat is fixed on the left side and the right side of the base respectively, the spring damping component and the tension spring damping component are mounted on the mounting seat and connected with the bottom plate of the drilling machine,

the spring damping assembly is mounted in the middle of the mounting seat and comprises a fixed sleeve, a first sleeve and a buffer spring, the fixed sleeve is fixed in the middle of the upper surface of the mounting seat, the first sleeve is fixed on the fixed sleeve, the buffer spring is mounted in the first sleeve, the upper end of the spring is connected with a bolt, the bolt penetrates out of the first sleeve upwards, a first connecting block is fixed on a corresponding position of a bottom plate of the drilling machine, a U-shaped first groove is formed in the first connecting block, an anti-loosening block with a U-shaped section is inserted into the first connecting block, and a U-shaped second groove is formed in a position, corresponding to the first groove, of the anti-loosening block; the bolt penetrates through the first connecting block and the anti-loosening block and penetrates through the two nuts to be locked;

the front portion of the mounting seat is provided with the tension spring damping assembly, the tension spring damping assembly comprises a tension spring, a second connecting block is arranged on the corresponding position of the bottom plate of the drilling machine in a penetrating mode, the upper end of the tension spring is connected with the second connecting block, and the lower end of the tension spring is connected with the front portion of the mounting seat.

The utility model relates to an embodiment, extension spring damping component is still including installing the anterior first lug of mount pad upper surface, the second connecting block is fixed with the second lug, first lug is connected to the lower extreme of extension spring, the second lug is connected to the upper end of extension spring, the second connecting block installation cavity has been seted up to the anterior side of the bottom plate of rig to wear to be equipped with locking screw on the installation cavity, the screw hole has been seted up to the corresponding position of second connecting block, and locking screw penetrates in the screw hole.

The utility model relates to an embodiment, the extension spring overcoat is equipped with the second sleeve, be located in the second sleeve the upper end and the lower extreme of extension spring are fixed with the connecting plate, the other end of connecting plate is fixed with the lifting hook, and the lifting hook on the extension spring upwards wears out the second sleeve and catches on the second lug, and the lifting hook under the extension spring is worn out the second sleeve downwards and is caught on first lug.

The utility model relates to an embodiment, the connecting plate of extension spring upper end with be provided with damping spring between the lower terminal surface at second sleeve top, the connecting plate of extension spring lower extreme with be provided with damping spring between the up end of second sleeve second portion.

In one embodiment of the present invention, the section of the fixing sleeve is convex, the first sleeve is rectangular, the front side and the rear side of the bottom of the first sleeve are symmetrically provided with a protrusion, the inner wall of the bottom in the first sleeve is tapped with a thread, the lower end of the bolt is provided with a baffle, the lower end surface of the baffle is fixedly connected with the upper end surface of the buffer spring, and the part of the bottom of the bolt located in the first sleeve is penetrated with a compression spring; the lower end of the buffer spring is connected with a rotating plate through a bearing, the outer peripheral surface of the rotating plate is tapped with threads to be matched with the threads in the first sleeve, and the lower surface of the rotating plate is provided with a cross groove.

The utility model relates to an embodiment, be located in the first sleeve the revolving plate has the carousel down to revolve, anti-loosening block has been placed to the carousel upper surface.

In an embodiment of the present invention, a fixing screw is inserted through the side wall of the fixing sleeve and penetrates through the side wall of the first sleeve; and the outer convex part of the fixed sleeve is provided with a connecting screw in a penetrating way, and the connecting screw penetrates through the convex part of the corresponding side of the first sleeve and penetrates into the bottom plate of the fixed sleeve.

The utility model has the advantages that: the utility model provides a marine drilling machine damping device, the device mainly comprises base, spring, extension spring, uses the hinge to link to each other base and rig at the rig rear side, uses the mode of spring, extension spring combination to link to each other base and rig at the rig front side, and this device simple structure, reliability are high, buffering shock attenuation are effectual, can effectively reduce the influence of the last top pushing down effect that adverse conditions such as surge, morning and evening tides produced the rig in the marine drilling work progress. The influence of adverse natural conditions on the drilling construction process of the drilling machine on the sea is greatly reduced, when the drilling machine is pushed up and pressed down in the drilling construction process, the drilling machine is subjected to reverse buffering and shock absorption, the loss of drill rods, drilling tools and drilling machine parts is reduced, the maintenance frequency and maintenance cost of the drilling machine are reduced, manpower and material resources are saved, the precious window period of the sea construction is utilized to the maximum extent, the working efficiency of the sea construction is improved, and the economic benefit of the drilling machine is exerted to the maximum extent.

Drawings

FIG. 1 is a schematic structural diagram of an offshore drilling rig damping device.

FIG. 2 is a rear view of an offshore drilling rig damping device.

Fig. 3 is a schematic structural view of a spring damper assembly.

Fig. 4 is a sectional view taken along line a-a of fig. 3.

Fig. 5 is a schematic structural view of the tension spring damping assembly.

Fig. 6 is a sectional view taken along line B-B of fig. 5.

FIG. 7 is a comparative illustration of a spring damper assembly using different sized anti-loosening blocks.

Detailed Description

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

Referring to fig. 1 to 7, the utility model provides a damping device for an offshore drilling rig, which comprises a drilling rig 1 and a base 2, wherein the drilling rig 1 is arranged on the base 2, and the rear side edge of the bottom plate of the drilling rig 1 is hinged with the rear side of the base 2, preferably, the rear side edge can be hinged; the damping and shock absorption module is arranged on the left side and the right side of the front part of the base 2 and comprises a mounting seat 3, a spring damping component 4 and a tension spring damping component 5, the mounting seat 3 is respectively fixed on the left side and the right side of the base 2, the spring damping component 4 and the tension spring damping component 5 are arranged on the mounting seat 3 and are connected with the bottom plate 11 of the drilling machine 1,

the spring damping component 4 is installed in the middle of the installation base 3, the spring damping component 4 comprises a fixed sleeve 41, a first sleeve 42 and a buffer spring 40, the fixing sleeve 41 is fixed in the middle of the upper surface of the mounting base 3, the first sleeve 42 is fixed on the fixing sleeve 41, the buffer spring 40 is installed in the first sleeve 42, the upper end of the spring is connected with a bolt 46, the bolt 46 penetrates out of the first sleeve 42 upwards, a first connecting block 43 is fixed on the corresponding position of the bottom plate 11 of the drilling machine 1, the first connecting block 43 is provided with a U-shaped first groove, which facilitates the disassembly and assembly of the bolt, i.e. the connecting part of the first sleeve is easily disassembled and replaced, the first connecting block 43 is inserted with a locking block 44 with a U-shaped section, and a U-shaped second groove is formed in the position, corresponding to the first groove, of the locking block 44; the bolt 46 penetrates through the first connecting block 43 and the anti-loosening block 44 and penetrates through two nuts 45 to be locked; when the anti-loosening bolt is installed, the sleeve part penetrates into the fixing sleeve, meanwhile, the bolt transversely penetrates into the first groove, then the anti-loosening block is sleeved on the first connecting block, the second groove of the anti-loosening block penetrates through the bolt, then the two nuts are screwed to clamp the anti-loosening block, and further the anti-loosening block tightly clamps the first connecting block, so that the bolt is fixed with the first connecting block, namely the bolt is fixedly connected with a bottom plate of a drilling machine;

the anterior installation of mount pad 3 extension spring damping component 5, extension spring damping component 5 includes extension spring 50, wear to be equipped with second connecting block 55 on the corresponding position of the bottom plate 11 of rig 1, the upper end of extension spring 50 with second connecting block 55 is connected, the lower extreme of extension spring 50 with the anterior connection of mount pad 3.

Please refer to fig. 1, 5 to 6, in an embodiment of the present invention, the tension spring damping assembly 5 further includes a first lifting lug 51 installed at the front portion of the upper surface of the mounting seat 3, the second connecting block 55 is fixed with a second lifting lug 54, the lower end of the tension spring 50 is connected to the first lifting lug 51, the upper end of the tension spring 50 is connected to the second lifting lug 54, the front side of the bottom plate 11 of the drilling machine 1 is provided with a mounting cavity 12 of the second connecting block, and a locking screw 13 is arranged on the mounting cavity 12 in a penetrating manner, a screw hole 56 is arranged at a corresponding position of the second connecting block 55, and the locking screw 13 penetrates into the screw hole 56.

Referring to fig. 1 and 5 to 6, in an embodiment of the present invention, a second sleeve 53 is sleeved outside the tension spring 50, a connecting plate 57 is fixed at the upper end and the lower end of the tension spring 50 in the second sleeve 53, a hook 54 is fixed at the other end of the connecting plate 57, the hook 54 on the tension spring 50 penetrates the second sleeve 53 upwards to hook the second lifting lug 54, and the hook 54 under the tension spring 50 penetrates the second sleeve 53 downwards to hook the first lifting lug 51, so as to facilitate the dismounting and mounting of the tension spring 50.

Referring to fig. 1 and 5 to 6, in an embodiment of the present invention, a damping spring 58 is disposed between a connecting plate 57 at the upper end of the tension spring 50 and the lower end surface of the top of the second sleeve 53, and a damping spring 58 is disposed between the connecting plate 57 at the lower end of the tension spring 50 and the upper end surface of the second portion of the second sleeve 53, so as to reduce the impact of the connecting plate 57 on the upper and lower ends of the sleeve, so as to protect the second sleeve.

Referring to fig. 1, 3 to 4 and 7, in an embodiment of the present invention, a cross section of the fixing sleeve 41 is a convex shape, the first sleeve 42 is a rectangular parallelepiped, protruding portions are symmetrically disposed on a front side and a rear side of a bottom of the first sleeve 42, a thread is tapped on an inner wall of the bottom in the first sleeve 42, a baffle 461 is disposed at a lower end of the bolt 46, a lower end surface of the baffle 461 is fixedly connected to an upper end surface of the buffer spring 40, and a compression spring 462 is disposed through a portion of the bottom of the bolt 46 located in the first sleeve 42; the lower extreme of buffer spring 40 is connected with through bearing 401 and changes board 47, the screw-thread fit in screw thread and the first sleeve 42 is attacked to the outer peripheral face of changeing board 47, cross slot 471 has been seted up to the lower surface of changeing board 47, also can be a word groove or plum blossom groove etc. to not regard this as the limit, conveniently rotate the carousel with the help of the instrument and adjust buffer spring 40's length, and then adjust buffer spring 40's elasticity, guarantee to be in dynamic balance state between rig 1 and the base 2, reach the most ideal buffering shock attenuation effect.

Referring to fig. 1, fig. 3 to fig. 4, and fig. 7, in an embodiment of the present invention, a rotating disc 49 is screwed below the rotating plate 47 in the first sleeve 42, and an anti-loosening block 48 is disposed on an upper surface of the rotating disc 49; the rotation of the rotation limiting plate 47 is limited to move downwards, so that the elastic force of the buffer spring 40 is changed, and in order to adapt to the length change caused by the change of the elastic force of the buffer spring, the anti-loosening block with the corresponding height needs to be selected.

Referring to fig. 1, 3 to 4, in an embodiment of the present invention, a fixing screw 411 is inserted through a sidewall of the fixing sleeve 41 and penetrates through a sidewall of the first sleeve 42; the outer convex parts of the fixed sleeve 41 are all provided with connecting screws 412 in a penetrating way, and the connecting screws penetrate through the convex parts at the corresponding sides of the first sleeve 42 and penetrate into the bottom plate 11 of the fixed sleeve 41; the first sleeve 42 is fixed to the fixed sleeve 41, i.e. fixedly connected to the base 2.

The utility model discloses the theory of operation below has:

the tail end of the drilling machine 1 is connected with the base 2 and the drilling machine 1 through a hinge 14, the drilling machine 1 and the base 2 can rotate around the hinge under the condition that the front end of the drilling machine 1 is not fixed, a buffer spring and a tension spring 50 are respectively arranged on the left side and the right side of the front end of the drilling machine 1, 2 buffer springs and 2 tension springs 50 are arranged in total, the size of the buffer spring 40 is 2 tons, and the size of the tension spring 50 is 800 kilograms. The buffer spring and the tension spring 50 are used for providing restraint in the vertical direction, when the drilling machine 1 is pushed up and pressed down in the construction process, impact generated by pushing up the drilling machine 1 can be buffered by the tension spring 50 and then transmitted to a drill rod, the influence on the drill rod and a drilling tool is reduced, and the abrasion of the drill rod and the drilling tool is reduced. And the impact generated when the drilling machine 1 is pressed down can be transmitted to the drilling machine 1 through the buffering of the buffer spring, so that the part loss caused by the direct impact of the drilling machine 1 on the platform is avoided. The connecting position of the buffer spring, the base 2 and the drilling machine 1 is provided with the positioning pin, so that the phenomenon that the buffer spring is unhooked due to violent up-and-down lifting of the device is avoided. In summary, when the drilling machine 1 is pushed up and pressed down in the drilling process, the buffer spring and the tension spring 50 in the device are cooperatively combined to play a role, impact in the drilling process of the drilling machine 1 is reversely buffered and damped, the effect of pulling up and bouncing down is achieved, and the loss of a drill rod, a drilling tool and parts of the drilling machine 1 is reduced.

In the actual use process, the tension force of the buffer spring and the tension spring 50 can be dynamically adjusted according to the actual construction sea condition and the tension stress dissipation condition of the buffer spring and the tension spring 50, so that the drilling machine 1 and the base 2 are in a dynamic balance state, and the optimal buffering and damping effect is achieved.

The above description is only for the preferred embodiment of the present invention, and should not be interpreted as limiting the scope of the present invention, which is intended to cover all the equivalent changes and modifications made in accordance with the claims of the present invention.

Claims

1. The utility model provides an offshore drilling rig damping device, includes the rig, its characterized in that: the drilling machine is arranged on the base, and the rear side edge of the bottom plate of the drilling machine is hinged with the rear side of the base; the damping and shock-absorbing module is arranged on the left side and the right side of the front part of the base and comprises a mounting seat, a spring damping component and a tension spring damping component, the mounting seat is fixed on the left side and the right side of the base respectively, the spring damping component and the tension spring damping component are mounted on the mounting seat and connected with the bottom plate of the drilling machine,

the spring damping assembly is installed in the middle of the installation seat and comprises a fixed sleeve, a first sleeve and a buffer spring, the fixed sleeve is fixed in the middle of the upper surface of the installation seat, the first sleeve penetrates through the fixed sleeve, the buffer spring is installed in the first sleeve, the upper end of the spring is connected with a bolt, the bolt penetrates out of the first sleeve upwards, a first connecting block is fixed on a corresponding position of a bottom plate of the drilling machine, a U-shaped first groove is formed in the first connecting block, an anti-loosening block with a U-shaped cross section is inserted into the first connecting block, and a U-shaped second groove is formed in a position, corresponding to the first groove, of the anti-loosening block; the bolt penetrates through the first connecting block and the anti-loosening block and penetrates through the two nuts to be locked;

2. The offshore drilling rig damping device of claim 1, wherein: the extension spring damping component is characterized by further comprising a first lifting lug arranged on the front portion of the upper surface of the mounting seat, a second lifting lug is fixed to the second connecting block, the lower end of the extension spring is connected with the first lifting lug, the upper end of the extension spring is connected with the second lifting lug, the mounting cavity of the second connecting block is formed in the front side edge of the bottom plate of the drilling machine, locking screws penetrate through the mounting cavity, screw holes are formed in the corresponding positions of the second connecting block, and the locking screws penetrate into the screw holes.

3. The offshore drilling rig damping device of claim 1, wherein: the extension spring overcoat is equipped with the second sleeve, be located in the second sleeve the upper end and the lower extreme of extension spring are fixed with the connecting plate, the other end of connecting plate is fixed with the lifting hook, and the lifting hook on the extension spring upwards wears out the second sleeve and catches on the second lug, and the lifting hook under the extension spring is worn out the second sleeve downwards and is caught on first lug.

4. An offshore drilling rig damping device according to claim 3, characterised in that: and a damping spring is arranged between the connecting plate at the upper end of the tension spring and the lower end face of the top of the second sleeve, and a damping spring is arranged between the connecting plate at the lower end of the tension spring and the upper end face of the bottom of the second sleeve.

5. The offshore drilling rig damping device of claim 1, wherein: the section of the fixed sleeve is convex, the first sleeve is cuboid, the front side and the rear side of the bottom of the first sleeve are symmetrically provided with convex parts, the inner wall of the bottom in the first sleeve is tapped with threads, the lower end of the bolt is provided with a baffle plate, the lower end surface of the baffle plate is fixedly connected with the upper end surface of the buffer spring, and the part of the bottom of the bolt, which is positioned in the first sleeve, is penetrated with a compression spring; the lower end of the buffer spring is connected with a rotating plate through a bearing, the outer peripheral surface of the rotating plate is tapped with threads to be matched with the threads in the first sleeve, and the lower surface of the rotating plate is provided with a cross groove.

6. The offshore drilling rig damping device of claim 5, wherein: the first sleeve is internally provided with a rotary plate which is arranged below the rotary plate in a rotating mode, and an anti-loosening block is placed on the upper surface of the rotary plate.

7. The offshore drilling rig damping device of claim 5, wherein: a fixing screw penetrates through the side wall of the fixing sleeve and penetrates through the side wall of the first sleeve; and the outer convex part of the fixed sleeve is provided with a connecting screw in a penetrating way, and the connecting screw penetrates through the convex part of the corresponding side of the first sleeve and penetrates into the bottom plate of the fixed sleeve.