CN114934753A

CN114934753A - Sleeve type flap elevator

Info

Publication number: CN114934753A
Application number: CN202210755198.9A
Authority: CN
Inventors: 唐东岳; 王怯; 李国鹏; 赵荣; 王明华; 严雪春; 崔鸿全; 朱恩明; 王爱山; 鄢继兵
Original assignee: Jiangsu Cheng Chuang Intelligent Equipment Co ltd
Current assignee: Jiangsu Cheng Chuang Intelligent Equipment Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-08-23
Anticipated expiration: 2042-06-28
Also published as: CN114934753B

Abstract

The invention belongs to the technical field of hydraulic elevators, and particularly relates to a sleeve type flap elevator. The valve comprises a valve body, a first plate turnover mechanism and a rotating mechanism, wherein a through hole is formed in the center of the valve body; the first plate turning mechanism comprises two first clamping plates which are oppositely arranged, first openings are formed in the joint ends of the two first clamping plates respectively, bayonets with first diameters are formed in the axis of the through hole by the two first openings, and the tail ends of the two first clamping plates are connected with first driving devices respectively so as to drive the two first clamping plates to rotate around the tail ends of the two first clamping plates to switch between a disengaging state and a locking state; the rotating mechanism comprises two suspension arms and two driving parts which are symmetrically arranged on two sides of the valve body, the lower ends of the suspension arms are rotatably connected with the rotating center of the side surface of the valve body, the first end of each driving part is hinged with the corresponding suspension arm, and the second end of each driving part obliquely extends to be hinged with the side surface of the valve body. The side door opening device is used for solving the problem that a drilling tool is easy to fall off when a side door of a side-opening elevator is opened accidentally.

Description

Sleeve type flap elevator

Technical Field

The invention belongs to the technical field of hydraulic elevators, and particularly relates to a sleeve type flap elevator.

Background

Hydraulic elevators are tools used to raise pipe strings in oil and gas drilling. In the tripping operation, pipe columns such as a drill pipe, a drill collar, an oil pipe and the like are suspended.

At present, the conventional elevator adopts a side-open structure design, and a hydraulic oil cylinder is utilized to drive a valve to open and close. By replacing the lining, pipe columns such as drill rods, drill collars, oil pipes and the like with different specifications are suspended.

However, the side-open structure of the elevator has a safety risk that the drilling tool slips when the side door is accidentally knocked open.

Disclosure of Invention

The technical problem that this application embodiment will solve lies in overcoming prior art not enough, provides a shell type and turns over board elevator for the problem that drilling tool dropped appears easily in the unexpected opening of side door of solving side open elevator.

The technical scheme for solving the technical problems in the embodiment of the application is as follows:

a shell style flap elevator, comprising: the valve body is provided with a through hole in the center;

the first plate turning mechanism comprises two first clamping plates which are arranged oppositely, first openings are formed in the joint ends of the two first clamping plates respectively, bayonets with first diameters are formed in the two first openings on the axis of the through hole, and the tail ends of the two first clamping plates are connected with first driving devices respectively so as to drive the two first clamping plates to rotate around the tail ends of the two first clamping plates to be switched between a disengagement state and a locking state;

the rotating mechanism comprises two suspension arms and two driving parts, the two suspension arms and the two driving parts are symmetrically arranged on two sides of the valve body, the lower ends of the suspension arms are rotatably connected with the rotating center of the side face of the valve body, the first end of each driving part is hinged with the corresponding suspension arm, and the second end of each driving part obliquely extends to be hinged with the side face of the valve body.

Compared with the prior art, the technical scheme has the following beneficial effects:

set up the shell type elevator of via hole through the center, utilize the bayonet socket that first opening formation on two first cardboards blocked the drilling tool with the coaxial axis line of via hole, change into the formation of emboliaing the joint from the drilling tool tip, avoided the side door accident to open the problem that the drilling tool dropped, safe and reliable drives the valve body through the driving piece that stretches to one side and rotates around the rotation center with the articulated department of davit, with in the past in rotation center department drive rotation than, the arm of force extension, it is laborsaving convenient more to rotate.

Further, still include:

the second plate turning mechanism comprises two second clamping plates which are arranged oppositely, second openings are formed in the joint ends of the two second clamping plates respectively, bayonets with second diameters different from the first diameters are formed in the axis of the through hole of the two second openings, and the tail ends of the two second clamping plates are connected with second driving devices respectively so as to drive the two second clamping plates to rotate around the tail ends of the second clamping plates to be switched between a disengagement state and a locking state.

Through setting up second panel turnover mechanism, form a second diameter bayonet socket different with first diameter, be applicable to the drilling tool of different specifications, reduce the operation in the artifical use.

Further, the two first clamping plates are stacked on the upper end face of the through hole in the locking state, and the two first clamping plates rotate upwards around the tail ends of the two first clamping plates to be opened in the releasing state.

Because the stress direction is downward when the elevator suspends the drill string, the locking state of the first clamping plate is pressed at the upper end of the through hole, and the releasing state of the first clamping plate is upward opening and cannot be downward opening, the safety that the elevator clamps the drill string is ensured.

Further, the second clamping plates are stacked on the surfaces of the first clamping plates to form a stacked structure in the locked state, and the two second clamping plates rotate to the outer sides of the two first clamping plates in the disengaged state.

Further, the first opening and the second opening are both conical openings.

Further, the first driving device is identical in structure to the second driving device, and the second driving device includes:

a driving oil cylinder;

and one end of the connecting rod is hinged with the output end of the driving oil cylinder, and the other end of the connecting rod is hinged with the tail end of the second clamping plate.

Further, the second driving device further includes:

the guide sliding chute is arranged along the telescopic direction of the driving oil cylinder;

and the guide sliding block is connected in the guide sliding groove in a sliding manner, and is further sleeved on the output rod of the driving oil cylinder.

The design that the driving oil cylinder and the connecting rod are matched with the guide sliding block is adopted, so that the oil cylinder is prevented from being subjected to lateral force, and the service life of the oil cylinder is prolonged.

Further, the rotation mechanism further includes: and one end of the rotating arm is fixed on the suspension arm, and the other end of the rotating arm is biased towards one side of the second end of the driving piece and is hinged with the first end of the driving piece.

Through setting up the swinging boom, the flexible scope of extension driving piece improves rotary valve body's angle.

Furthermore, the lifting device further comprises a clamping seat fixed on the lifting arm, wherein a limiting bulge is arranged on the circumferential surface of the clamping seat, and a limiting groove is formed in the circumferential direction of the rotating arm and is rotatably connected with the clamping seat.

The limiting protrusion arranged in the limiting groove is utilized, so that floating rotation at a certain angle can be performed between the clamping seat and the rotating arm, and the deflection angle of the drill string can be adapted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a side view of the structure of fig. 1.

Fig. 3 is a schematic top view of the structure of fig. 1.

Fig. 4 is a schematic sectional view along the direction of a-a in fig. 1.

Fig. 5 is a schematic cross-sectional view taken along line C-C of fig. 2.

Fig. 6 is a schematic structural view of a locked state and a released state in the embodiment of the present invention.

Reference numerals:

1. a valve body; 2. a via hole;

3. a first panel turnover mechanism;

31. a first clamping plate; 32. a first opening;

4. a second panel turnover mechanism;

41. a second clamping plate; 42. a second opening;

5. a third panel turnover mechanism;

51. a third clamping plate; 52. a third opening;

6. a rotation mechanism;

61. a suspension arm; 62. a drive member; 63. a rotating arm;

7. a second driving device;

71. a driving oil cylinder; 72. A connecting rod;

8. a guide chute; 9. A guide slider;

10. a card holder; 11. a limiting bulge; 12. a limiting groove;

13. a rotating shaft.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 5, an embodiment of the present invention provides a shell type flap elevator, which includes: the valve comprises a valve body 1, a first plate turnover mechanism 3 and a rotating mechanism 6, wherein a through hole 2 is formed in the center of the valve body 1, the diameter of the through hole 2 can pass through a tubular column with the maximum diameter, and an opening at the lower end of the through hole 2 is a tapered opening which gradually expands.

The first plate turning mechanism 3 comprises two first clamping plates 31 which are arranged oppositely, first openings 32 are formed in the joint ends of the two first clamping plates 31 respectively, bayonets with first diameters are formed in the two first openings 32 on the axis of the through hole 2, the tail ends of the two first clamping plates 31 are connected with first driving devices respectively, so that the two first clamping plates 31 are driven to rotate around the tail ends of the first clamping plates to be switched between a disengaging state and a locking state, and when the first clamping plates are in the locking state, the two first openings 32 are folded to form circular bayonets.

Specifically, the two first locking plates 31 are stacked on the upper end surface of the through hole 2 in the locked state, and the two first locking plates 31 are rotated upward around the tail ends thereof to be opened in the released state.

As the stress direction is downward in the process of suspending the drill string by the elevator, the locking state of the first clamping plate 31 is pressed at the upper end of the through hole 2, and the first clamping plate 31 is upwards opened and cannot be downwards opened in the disconnecting state, the safety of clamping the drill string by the elevator is ensured.

The rotating mechanism 6 comprises two suspension arms 61 and two driving pieces 62 which are symmetrically arranged on two sides of the valve body 1, the lower end of the suspension arm 61 is rotatably connected with the rotating center of the side surface of the valve body 1, the first end of the driving piece 62 is hinged with the suspension arm 61, and the second end of the driving piece is obliquely extended to be hinged with the side surface of the valve body 1.

Through the shell type elevator of seting up via hole 2 in the center, utilize first opening 32 on two first cardboard 31 to form the bayonet socket with the coaxial line of via hole 2 and block the drilling tool, change into the formation of emboliaing the joint from the drilling tool tip, avoided the side door accident to open the problem that the drilling tool dropped, safe and reliable drives valve body 1 through the driving piece 62 that stretches to one side and rotates around the rotation center with davit 61 articulated department, with in the past in rotation center department drive rotation ratio, the arm of force extension, it is more laborsaving convenient to rotate.

In this embodiment, the second flipping mechanism 4 further includes two second clamping plates 41 disposed opposite to each other, second openings 42 are respectively formed at joint ends of the two second clamping plates 41, bayonets with a second diameter different from the first diameter are formed on the axial lines of the through holes 2 by the two second openings 42, and second driving devices 7 are respectively connected to tail ends of the two second clamping plates 41 to drive the two second clamping plates 41 to rotate around the tail ends thereof to switch between a disengaged state and a locked state.

Through setting up second panel turnover mechanism 4, form a second diameter bayonet socket different with first diameter, be applicable to the drilling tool of different specifications, reduce the operation in the artifical use.

Specifically, the second card 41 is stacked on the surface of the first card 31 in the locked state to form a stacked structure, and the two second cards 41 are rotated to the outer sides of the two first cards 31 in the unlocked state.

In this embodiment, in order to be suitable for more drilling tools with different specifications, the drilling tool further includes a third plate turnover mechanism 5, the plate turnover mechanism includes two third clamping plates 51 arranged oppositely, third openings 52 are respectively formed at joint ends of the two second clamping plates 41, bayonets with third diameters different from the first diameter and the second diameter are formed on the axis of the through hole 2 by the two third openings 52, and third driving devices are respectively connected to tail ends of the two third clamping plates 51 to drive the two third clamping plates 51 to rotate around the tail ends thereof to switch between a disengaged state and a locked state.

The third card plates 51 are stacked on the surface of the second card plate 41 to form a stacked structure in the locked state, and the two third card plates 51 rotate to the outer sides of the two second card plates 41 in the released state.

The third card board 51, the second card board 41 and the first card board 31 are sequentially stacked from bottom to top in the locking state, the lengths of the third card board 51, the second card board 41 and the first card board 31 are sequentially increased, and the first card board 31, the second card board 41 and the third card board 51 are arranged in a trapezoidal shape with a wide top and a narrow bottom in the locking state, so that the first card board 31, the second card board 41 and the third card board 51 can rotate conveniently and are not mutually influenced.

Wherein the third diameter, the second diameter and the first diameter increase in sequence; when the bayonet of the third diameter is used for clamping the drilling tool, the first clamping plate 31, the second clamping plate 41 and the third clamping plate 51 are all in a locking state, and the bayonet of the third diameter at the uppermost layer with the smallest diameter is used for clamping the drilling tool; when the drilling tool is clamped by the bayonets with the second diameter, the third clamping plate 51 on the uppermost layer is opened to be in a disconnecting state, and the second clamping plate 41 and the first clamping plate 31 are in a locking state; when the drilling tool is held by the bayonet of the first diameter, the first catch plate 31 is in the locked state, and the second catch plate 41 and the third catch plate are in the unlocked state.

The first opening 32 and the second opening 42 are both tapered openings for being fittingly retained with a drill neck.

In this embodiment, the first driving device has the same structure as the second driving device 7 and the third driving device, the first driving device, the second driving device 7 and the third driving device are arranged in parallel in the valve body 1, and the second driving device 7 includes a driving cylinder 71 and a connecting rod 72 arranged in the valve body 1.

One end of the connecting rod 72 is hinged with the output end of the driving oil cylinder 71, and the other end is hinged with the tail end of the second clamping plate 41.

As shown in fig. 4 and 6, the two second locking plates 41 are hinged to the valve body 1 through the rotating shaft 13 at positions close to the tail ends, the connecting rod 72 drives the second locking plate 41 to rotate, when the second locking plate rotates from the locked state to the unlocked state, the engaging end of the right second locking plate 41 rotates around the rotating shaft 13 in the angle range of the second quadrant, and the engaging end of the left second locking plate 41 corresponding to the right rotates around the rotating shaft 13 in the angle range of the first quadrant.

The first catch plate 31 and the third catch plate 51 are arranged the same as the second catch plate 41 and are hinged to the valve body 1 through the rotating shaft 13, and when the valve body rotates from the locking state to the disengagement state, the first catch plate 31 and the third catch plate 51 which are oppositely arranged on the left side and the right side rotate in the angle ranges of the second quadrant and the first quadrant respectively.

The second driving device 7 further includes: a guide chute 8 and a guide slide block 9.

The guide chute 8 is arranged along the telescopic direction of the driving oil cylinder 71; the guide sliding block 9 is connected in the guide sliding groove 8 in a sliding mode, and the guide sliding block 9 is further sleeved on an output rod of the driving oil cylinder 71.

The design that the driving oil cylinder 71 and the connecting rod 72 are matched with the guide sliding block 9 is adopted, so that the oil cylinder is prevented from being subjected to lateral force, and the service life of the oil cylinder is prolonged.

The rotating mechanism 6 further includes: and a rotating arm 63, wherein one end of the rotating arm 63 is fixed on the suspension arm 61, the other end of the rotating arm is far away from one side of the second end of the driving part 62, the other side of the second end of the driving part is offset, the first end of the driving part 62 is hinged, and the angle of the rotating valve body 1 is improved by setting the rotating arm 63 and lengthening the telescopic range of the driving part 62.

As shown in fig. 1 and 3, the drill string suspension device further comprises a clamping seat 10 fixed on the suspension arm 61, wherein a limiting protrusion 11 is arranged on the circumferential surface of the clamping seat 10, the limiting protrusion 11 can be realized by a bolt, a limiting groove 12 is circumferentially arranged on the rotating arm 63 in rotation connection with the clamping seat 10, the limiting protrusion 11 can be realized by a bolt, the limiting groove 12 is set to be 16-20 degrees by using the central angle of the rotation centers of the clamping seat 10 and the rotating arm 63, the limiting protrusion 11 arranged in the limiting groove 12 enables the clamping seat 10 and the rotating arm 63 to perform certain-angle floating rotation to adapt to the deflection angle of the drill string, so that the drill string can swing along with the clamping seat within a certain angle range after the drilling tool is clamped by the elevator, and damage to an oil cylinder or other components caused by deflection of the elevator due to stress is avoided.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shell type turnover plate elevator is characterized by comprising: the valve body is provided with a through hole in the center;

2. The shell-type flap elevator according to claim 1, further comprising:

the second plate turning mechanism comprises two second clamping plates which are arranged oppositely, second openings are formed in the joint ends of the two second clamping plates respectively, bayonets with second diameters different from the first diameters are formed in the axis of the through holes of the two second openings, and the tail ends of the two second clamping plates are connected with second driving devices respectively so as to drive the two second clamping plates to rotate around the tail ends of the two second clamping plates to be switched between a disengagement state and a locking state.

3. The shell-type flap elevator as recited in claim 2, wherein said two first locking plates are stacked on the upper end surface of said through hole in said locked state, and said two first locking plates are rotated upward around the tail ends thereof to be opened in said unlocked state.

4. The shell type flap elevator as recited in claim 3, wherein the second locking plate is stacked on the surface of the first locking plate in the locked state to form a stacked structure, and the two second locking plates are rotated to the outside of the two first locking plates in the unlocked state.

5. The shell-type flap elevator as recited in claim 2, wherein the first and second openings are both tapered openings.

6. The shell-type flap elevator as set forth in claim 2, wherein the first drive means is identical in construction to the second drive means, and the second drive means comprises:

a driving oil cylinder;

7. The shell-type flap elevator as set forth in claim 6, wherein the second drive means further comprises:

8. The shell-type flap elevator according to claim 1, wherein the rotating mechanism further comprises: and one end of the rotating arm is fixed on the suspension arm, and the other end of the rotating arm is biased towards one side of the second end of the driving piece and is hinged with the first end of the driving piece.

9. The shell type turning plate elevator as claimed in claim 8, further comprising a clamping seat fixed on the suspension arm, wherein a limiting protrusion is disposed on the circumferential surface of the clamping seat, and a limiting groove is disposed on the rotating arm rotatably connected with the clamping seat in the circumferential direction.