CN118008170A - Top anti-falling chuck is prevented in combined type hydraulic gear drive - Google Patents
Top anti-falling chuck is prevented in combined type hydraulic gear drive Download PDFInfo
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- CN118008170A CN118008170A CN202410425094.0A CN202410425094A CN118008170A CN 118008170 A CN118008170 A CN 118008170A CN 202410425094 A CN202410425094 A CN 202410425094A CN 118008170 A CN118008170 A CN 118008170A
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- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 10
- 230000005465 channeling Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
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Abstract
The invention relates to a chuck, in particular to a combined hydraulic gear transmission anti-top anti-falling chuck, which is used for solving the defects that in conventional well repairing operation, an air chuck or a hydraulic chuck is usually adopted, but the chuck only plays the role of preventing falling of a pipe column and can not solve the problem of upward movement, and in pressurized operation equipment, the independent anti-top chuck and the anti-falling chuck are matched, the installation space is large, in addition, a linkage swinging mode is adopted, the whole pressurized operation equipment is large in size, and the adopted link mechanism is not completely synchronous, so that the pipe column is difficult to center. The combined hydraulic gear transmission anti-jacking anti-falling chuck is provided with two cavities, each cavity is provided with a hydraulic cylinder, a gear transmission mechanism and a slip assembly, and the slip assembly is enabled to rapidly move upwards or downwards through the hydraulic cylinders and the gear transmission mechanism, so that a pipe column is prevented from continuously moving upwards or falling downwards.
Description
Technical Field
The invention relates to a chuck, in particular to a combined hydraulic gear transmission anti-top anti-falling chuck.
Background
During conventional well workover, the elevator is generally hung by a large hook, and the elevator is used for lifting or lowering the pipe column by the lower part of the coupling. In order to prevent the pipe string from falling down into the well, an air chuck or a hydraulic chuck is generally pre-installed on a wellhead blowout preventer, but the air chuck or the hydraulic chuck can only realize the anti-falling function, if pressure suddenly exists in the well in the process of lifting or lowering the pipe string, the pipe string can be caused to flow up, and further the wellhead is out of control.
In the operation equipment with pressure, though the top-preventing chuck and the falling-preventing chuck are matched, the two chucks are two independent components, the installation space is large, and a linkage swinging mode can be adopted, but the whole set of operation equipment with pressure is larger, and a connecting rod mechanism adopted in the linkage swinging mode is not completely synchronous, so that the centering of a pipe column is difficult.
Disclosure of Invention
The invention aims to solve the defects that in conventional well repair operation, an air chuck or a hydraulic chuck is usually adopted, but the chuck only plays a role in preventing a pipe column from falling, the problem of upward movement cannot be solved, and in pressurized operation equipment, a separate matched anti-top chuck and anti-falling chuck are large in installation space, a linkage swinging mode is adopted, the whole pressurized operation equipment is large in size, and a adopted link mechanism is not completely synchronous, so that the pipe column is difficult to center.
In order to solve the defects existing in the prior art, the invention provides the following technical solutions:
the utility model provides a compound hydraulic gear transmission prevents top anti-falling chuck which characterized in that: the device comprises a shell assembly, wherein the shell assembly comprises a front plate, a rear plate and an inner middle plate, wherein the front plate and the rear plate are respectively positioned at the front part and the rear part; a cavity is formed in the shell assembly, the cavity is divided into two cavities which are arranged vertically symmetrically by the middle plate, and a through hole penetrating through the two cavities is formed in the shell assembly and is used for a pipe column to pass through;
each cavity is provided with a hydraulic cylinder, a gear transmission mechanism and a slip assembly; the hydraulic cylinder is arranged on the rear plate of the corresponding cavity; the gear transmission mechanism comprises two groups of slip driving mechanisms and a rack connecting plate, wherein the two groups of slip driving mechanisms are symmetrically arranged left and right along the hydraulic cylinder, and the input end of each group of slip driving mechanisms is connected with the telescopic end of the hydraulic cylinder through the rack connecting plate;
The slip assembly comprises two slip seats and two tooth blocks which are symmetrically arranged in the cavity, the two tooth blocks are respectively arranged in the two slip seats, each slip seat is in sliding connection with the front plate and the rear plate through the output ends of the corresponding slip driving mechanisms on the same side, the two slip seats are closer to the middle plate, the distance between the two tooth blocks is larger, and the two tooth blocks are used for holding a tubular column tightly;
The slip assembly is arranged in the cavity above and used for preventing the roof from being lifted, and the slip assembly is arranged in the cavity below and used for preventing the falling.
Further, the shell assembly further comprises two end plates respectively positioned at the upper part and the lower part, and a left side plate and a right side plate respectively positioned at the left part and the right part; and the two end plates and the middle plate are respectively provided with the through holes for the pipe column to pass through.
Further, the left side plate and the right side plate of each cavity are arranged in a splayed left-right symmetry manner, and the front plate and the rear plate of each cavity are provided with two sliding grooves which are left-right symmetry and respectively parallel to the left side plate and the right side plate; each slip seat is connected in a corresponding sliding groove on the same side in a sliding way.
Further, each slip seat is provided with an upper through hole and a connecting pin, the upper through holes penetrate through the slip seat front and back, the middle part of the connecting pin is positioned in the upper through hole, and two ends of the connecting pin are respectively arranged in corresponding sliding grooves of the front plate and the rear plate.
Further, each slip driving mechanism comprises a rack, a driving gear, a driven gear, a first connecting shaft, a second connecting shaft and an inner telescopic shaft which are positioned on the outer side of the rear plate; racks of the two groups of slip driving mechanisms in each cavity are symmetrically arranged on two sides of the hydraulic cylinder, the lower ends of the racks are respectively connected with two ends of a rack connecting plate, and the middle of the rack connecting plate is connected with the telescopic ends of the hydraulic cylinder; the rack, the driving gear and the driven gear are meshed in sequence; the rear end of the first connecting shaft penetrates through the rear plate and then is connected with the driven gear, the middle part of the first connecting shaft is vertically provided with a connecting sleeve, and the front end of the first connecting shaft penetrates through the front plate; the outer end of the inner telescopic shaft penetrates through the strip-shaped opening arranged on the left side plate or the right side plate and then stretches into the connecting sleeve, and the inner end of the inner telescopic shaft is connected between the front plate and the rear plate of the cavity in a sliding manner through the slip seat corresponding to the same side through the second connecting shaft.
Further, each slip seat is further provided with a mounting groove and a lower through hole, the mounting groove is positioned at the lower part of the outer side wall of the slip seat, the opening of the mounting groove is downward, the mounting groove is positioned at the middle position of the slip seat in the front-back direction, and the lower through hole penetrates through the front side wall and the rear side wall of the mounting groove;
The inner end of the inner telescopic shaft is positioned in the installation groove of the slip seat corresponding to the same side, and the second connecting shaft penetrates through the lower through hole of the slip seat corresponding to the same side and the through hole on the inner end of the inner telescopic shaft, and then the two ends of the second connecting shaft are respectively positioned in the sliding grooves on the same side on the front plate and the rear plate, so that the slip seat on the same side is in sliding connection between the front plate and the rear plate.
Further, the front ends of two first connecting shafts in the gear transmission mechanism in the same cavity vertically connect with sensor sensing rods after penetrating through the front plate of the cavity;
Each cavity front plate is provided with a clamping sensor and an opening sensor which correspond to the two sensor sensing rods respectively, the clamping sensors are arranged at positions close to the end plates, and the opening sensors are arranged at positions close to the middle plate.
Further, the front ends of two first connecting shafts in the gear transmission mechanism in the same cavity vertically connect with sensor sensing rods after penetrating through the front plate of the cavity;
each of the cavity front plates is provided with a slip clamping position indication board and a slip opening position indication board which correspond to the two sensor sensing rods respectively, the slip clamping position indication boards are arranged at positions close to the end plates, and the slip opening position indication boards are arranged at positions close to the middle plates.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention relates to a combined type hydraulic gear transmission anti-jacking anti-falling chuck, which is provided with two cavities, wherein each cavity is provided with a hydraulic cylinder, a gear transmission mechanism and a slip assembly, and the slip assembly is enabled to rapidly move upwards or downwards through the hydraulic cylinder and the gear transmission mechanism so as to prevent a pipe column from continuously channeling upwards or falling downwards.
(2) The invention relates to a combined hydraulic gear transmission anti-top anti-falling chuck, which can realize anti-top and anti-falling of a tubular column under two different working conditions of conventional well workover and under-pressure well workover by using only one set of chuck.
(3) According to the combined type hydraulic gear transmission anti-jacking and anti-falling chuck, the hydraulic cylinders are adopted to drive the slip driving mechanisms on the left side and the right side simultaneously, compared with the connecting rod mechanism, the driving force of the hydraulic transmission mechanism is larger, the synchronous movement of two slip seats can be ensured, and the centering of a pipe column is ensured.
(4) In the combined hydraulic gear transmission anti-jacking anti-falling chuck, a cavity positioned above is used as an upper cavity, a slip assembly in the upper cavity is used for jacking prevention, a cavity positioned below is used as a lower cavity, and the slip assembly in the lower cavity is used for falling prevention; because the two cavities have the same structure, the upper cavity and the lower cavity can be exchanged.
Drawings
FIG. 1 is a front view of a composite hydraulic gear drive anti-jack anti-fall chuck embodiment of the present invention in a slip assembly gripping configuration;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a front view of an embodiment of the slip assembly of the present invention in an undamped condition;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a rear view of FIG. 4;
FIG. 7 is a B-B view of FIG. 6;
FIG. 8 is a schematic diagram of a chucking sensor and an opening sensor according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a slip gripping position indicator and a slip open position indicator according to an embodiment of the present invention;
FIG. 10 is a schematic illustration of a slip bowl according to an embodiment of the present invention;
fig. 11 is a C-C cross-sectional view of fig. 10.
The reference numerals are explained as follows:
1-a shell assembly, 11-an end plate, 12-a front plate, 13-a rear plate, 14-a left side plate, 15-a right side plate, 16-a middle plate and 17-a sliding groove;
2-a hydraulic cylinder;
3-slip assembly, 31-slip bowl, 311-mounting groove, 312-lower through hole, 313-upper through hole, 314-connecting pin, 32-tooth block;
4-gear transmission mechanism, 41-rack, 42-driving gear, 43-driven gear, 44-first connecting shaft, 441-connecting sleeve, 45-second connecting shaft, 46-inner telescopic shaft, 47-sensor sensing rod and 48-rack connecting plate;
5-upper cavity, 51-strip opening; 6-a lower cavity;
7-clamping the sensor; 8-turn on sensor; 9-slips clamping position indication board and 10-slips opening position indication board.
Detailed Description
The invention is further described below with reference to the drawings and exemplary embodiments.
Referring to fig. 1 to 11, a composite hydraulic gear drive roof fall preventing chuck (hereinafter simply referred to as "chuck") includes a housing assembly 1, two hydraulic cylinders 2, two gear drive mechanisms 4 and two slip assemblies 3.
The housing assembly 1 includes front and rear plates 12 and 13 at the front and rear, respectively, two end plates 11 at the upper and lower, respectively, left and right side plates 14 and 15 at the left and right, respectively, and an intermediate plate 16 at the inside.
The cavity is formed in the shell assembly 1, the middle plate 16 divides the cavity into two cavities which are arranged up and down symmetrically, through holes which penetrate through the two cavities and are used for the pipe column to pass through are formed in the shell assembly 1, and specifically, through holes which are used for the pipe column to pass through are formed in the two end plates 11 and the middle plate 16. To facilitate removal of the spider in the presence of a string in the well, openings (not shown) for access to the string are also provided in the front plate 12 and the two end plates 11.
Each cavity is provided with a slip assembly 3, a hydraulic cylinder 2 and a gear transmission mechanism 4.
Referring to fig. 1, the left side plate 14 and the right side plate 15 of each cavity are arranged in a splayed bilateral symmetry; the front plate 12 and the rear plate 13 of each cavity are respectively provided with two sliding grooves 17, and the two sliding grooves 17 are symmetrically arranged left and right and are respectively parallel to the left side plate 14 and the right side plate 15.
Referring to fig. 1, 4, 10 and 11, the slip assembly 3 is used for holding a pipe column tightly, and preventing the pipe column from channeling or falling down; the slip assembly 3 comprises two slip seats 31 and two tooth blocks 32 which are symmetrically arranged in the cavity, and the two tooth blocks 32 are respectively arranged in the two slip seats 31 in a detachable mode; each slip bowl 31 is provided with a mounting groove 311, an upper through hole 313, a lower through hole 312 and a connecting pin 314, wherein the mounting groove 311 is positioned at the lower part of the outer side wall of the slip bowl 31, the mounting groove 311 is downward open and positioned at the middle position of the slip bowl 31 in the front-rear direction, the upper through hole 313 and the lower through hole 312 penetrate through the slip bowl 31 front and rear, and the lower through hole 312 penetrates through the front side wall and the rear side wall of the mounting groove 311; the middle part of the connecting pin 314 is positioned in the upper through hole 313, and the two ends of the connecting pin are arranged in the corresponding sliding groove 17.
Referring to fig. 6, the hydraulic cylinder 2 is used to drive the gear transmission mechanism 4, the hydraulic cylinder 2 is provided on the rear plate 13, and the upper end is connected to a portion of the end plate 11 protruding from the rear plate 13.
Referring to fig. 1, 2 and 4-7, the gear transmission mechanism 4 is used for driving the slip assembly 3 under the driving of the hydraulic cylinder 2, and the gear transmission mechanism 4 comprises two groups of slip driving mechanisms symmetrically arranged along the hydraulic cylinder 2 and a rack connecting plate 48;
Each slip driving mechanism comprises a rack 41, a driving gear 42, a driven gear 43, a first connecting shaft 44, a second connecting shaft 45 and an inner telescopic shaft 46 which are positioned on the outer side of the rear plate 13; the racks 41 of the two groups of slip driving mechanisms in each cavity are symmetrically arranged on two sides of the hydraulic cylinder 2, the lower ends of the racks 41 are respectively connected with two ends of a rack connecting plate 48, and the middle part of the rack connecting plate 48 is connected with the telescopic end of the hydraulic cylinder 2; the rack 41, the driving gear 42, and the driven gear 43 are sequentially engaged; the rear end of the first connecting shaft 44 passes through the rear plate 13 and is provided with a driven gear 43, the middle part of the first connecting shaft is vertically provided with a connecting sleeve 441, and the front end of the first connecting shaft passes through the front plate 12; the outer end of the inner telescopic shaft 46 passes through the elongated opening 51 provided on the left side plate 14 or the right side plate 15 and then extends into the connecting sleeve 441, the inner end is located in the mounting groove 311 of the slip seat 31 corresponding to the same side, and the second connecting shaft 45 passes through the lower through hole 312 of the slip seat 31 corresponding to the same side and the through hole on the inner end of the inner telescopic shaft 46, and then the two ends are respectively located in the sliding grooves 17 on the same side on the front plate 12 and the rear plate 13, so that the slip seat 31 on the same side is slidably connected between the front plate 12 and the rear plate 13.
Referring to fig. 1 and 4, the closer the two slip bowl 31 of each cavity is to the intermediate plate 16, the greater the distance between the two segments 32;
Referring to fig. 8, in order to remotely and accurately obtain the position of the slip assembly 3, the front ends of two first connecting shafts 44 in the gear transmission mechanism 4 in the same cavity are vertically connected with sensor sensing rods 47 after passing through the front plate 12 of the cavity; the front plate 12 is provided with a clamping sensor 7 and an opening sensor 8 which correspond to the two sensor sensing rods 47 respectively, the clamping sensor 7 is arranged close to the end plate 11, the opening sensor 8 is arranged close to the middle plate 16, when the slip assembly 3 moves up to the clamping position of the tooth block 32, the first connecting shaft 44 rotates to drive the sensor sensing rods 47 to swing upwards until being in contact with the clamping sensor 7, the clamping sensor 7 sends a clamping signal to the operation table, and similarly, when the slip assembly 3 moves down to the opening position, the opening sensor 8 sends an opening signal to the operation table.
Referring to fig. 9, the grip sensor 7 and the open sensor 8 may also be replaced with a slip grip position indicator 9 and a slip open position indicator 10 to facilitate direct viewing of the position of the slip assembly 3 at close range.
The cavity positioned above is used as an upper cavity 5, the slip assembly 3 in the upper cavity 5 is used for preventing roof, the cavity positioned below is used as a lower cavity 6, and the slip assembly 3 in the lower cavity 6 is used for preventing falling; because the two cavities have the same structure, the upper cavity 5 and the lower cavity 6 can be exchanged.
The working principle of the chuck of the invention is as follows:
during conventional workover operations:
1. When the pressure in the well suddenly appears and the tubular column is channeling upwards, liquid is supplied to the liquid cylinder 2 in the upper cavity 5, the telescopic end of the liquid cylinder 2 stretches out and drives the two racks 41 to descend; taking a slip driving mechanism on the left side as an example, the rack 41 drives the driving gear 42 to rotate clockwise, the driving gear 42 drives the driven gear 43 to rotate anticlockwise, the driven gear 43 drives the first connecting shaft 44 to rotate and drives the inner telescopic shaft 46 to swing upwards, and the inner telescopic shaft 46 drives the second connecting shaft 45 to slide upwards along the sliding groove 17, so that the slip assembly 3 is driven to move upwards rapidly to hold the pipe column tightly, and upward movement of the pipe column is prevented;
2. After the pipe column is well controlled, the blowout prevention wellhead can be lifted, the blowout prevention wellhead is connected to the head of the pipe column in the well, the large hook lifts the blowout prevention wellhead, the pipe column is lowered, after the pressure of the hydraulic cylinder 2 in the upper cavity 5 is released, the slip assembly 3 automatically falls back, the pipe column is loosened, and the chuck can be lifted off the wellhead;
It should be noted that, when the pressure in the well suddenly disappears, the hydraulic cylinder 2 in the lower cavity 6 is supplied with fluid, and the working principles of the slip assembly 3, the hydraulic cylinder 2 and the gear transmission mechanism 4 in the upper cavity 5 and the lower cavity 6 are similar, which will not be described in detail herein.
In pressurized workover operations:
When the weight of the pipe column is smaller than the jacking force, liquid is supplied to the liquid cylinder 2 in the upper cavity 5, and the jacked pipe column is clamped; when the weight of the pipe column is larger than the jacking force, liquid is supplied to the liquid cylinder 2 in the lower cavity 6, and the falling pipe column is clamped; when the weight of the pipe column approaches to the top force, liquid is supplied to the liquid cylinder 2 in the upper cavity 5 and the liquid cylinder 2 in the lower cavity 6 simultaneously, and the pipe column is clamped, as shown in fig. 1. The working principle is the same as that of the conventional well repair operation, and the detailed description is omitted here.
Claims (8)
1. A composite hydraulic gear transmission anti-top anti-falling chuck is characterized in that: comprises a shell assembly (1), wherein the shell assembly (1) comprises a front plate (12) and a rear plate (13) which are respectively positioned at the front part and the rear part, and an intermediate plate (16) positioned inside; a cavity is formed in the shell assembly (1), the cavity is divided into two cavities which are arranged symmetrically up and down by the middle plate (16), and a through hole penetrating through the two cavities is formed in the shell assembly (1) and is used for a pipe column to pass through;
Each cavity is provided with a hydraulic cylinder (2), a gear transmission mechanism (4) and a slip assembly (3); the hydraulic cylinder (2) is arranged on the rear plate (13) corresponding to the cavity; the gear transmission mechanism (4) comprises two groups of slip driving mechanisms which are symmetrically arranged left and right along the hydraulic cylinder (2) and a rack connecting plate (48), and the input end of each group of slip driving mechanisms is connected with the telescopic end of the hydraulic cylinder (2) through the rack connecting plate (48);
The slip assembly (3) comprises two slip seats (31) and two tooth blocks (32) which are symmetrically arranged in the cavity, the two tooth blocks (32) are respectively arranged in the two slip seats (31), each slip seat (31) is in sliding connection with the front plate (12) and the rear plate (13) through the output ends of the corresponding slip driving mechanisms on the same side, the two slip seats (31) are closer to the middle plate (16), the distance between the two tooth blocks (32) is larger, and the two tooth blocks (32) are used for holding a pipe column tightly;
the slip assembly (3) is positioned in the cavity above and used for preventing roof, and the slip assembly (3) is positioned in the cavity below and used for preventing falling.
2. The composite hydraulic gear drive anti-top anti-drop chuck according to claim 1, wherein: the shell assembly (1) further comprises two end plates (11) respectively positioned at the upper part and the lower part, a left side plate (14) and a right side plate (15) respectively positioned at the left part and the right part; the two end plates (11) and the middle plate (16) are respectively provided with the through holes for the pipe column to pass through.
3. The composite hydraulic gear drive anti-top anti-drop chuck according to claim 2, wherein: the left side plate (14) and the right side plate (15) of each cavity are arranged in a splayed bilateral symmetry manner, and the front plate (12) and the rear plate (13) of each cavity are provided with two sliding grooves (17) which are bilaterally symmetrical and are respectively parallel to the left side plate (14) and the right side plate (15); each slip seat (31) is connected in a sliding way in a corresponding sliding groove (17) on the same side.
4. A composite hydraulic gear drive anti-jack anti-drop chuck as claimed in claim 3, wherein: each slip seat (31) is provided with an upper through hole (313) and a connecting pin (314), the upper through hole (313) penetrates through the slip seat (31) front and back, the middle part of the connecting pin (314) is positioned in the upper through hole (313), and two ends of the connecting pin are respectively arranged in corresponding sliding grooves (17) of the front plate (12) and the rear plate (13).
5. The composite hydraulic gear drive anti-top anti-drop chuck of claim 4, wherein: each slip driving mechanism comprises a rack (41), a driving gear (42), a driven gear (43), a first connecting shaft (44), a second connecting shaft (45) and an inner telescopic shaft (46) which are positioned on the outer side of the rear plate (13); racks (41) of the two groups of slip driving mechanisms in each cavity are symmetrically arranged on two sides of the hydraulic cylinder (2), the lower ends of the racks (41) are respectively connected with two ends of a rack connecting plate (48), and the middle part of the rack connecting plate (48) is connected with the telescopic end of the hydraulic cylinder (2); the rack (41), the driving gear (42) and the driven gear (43) are sequentially meshed; the rear end of the first connecting shaft (44) passes through the rear plate (13) and then is connected with the driven gear (43), the middle part of the first connecting shaft is vertically provided with a connecting sleeve (441), and the front end of the first connecting shaft passes through the front plate (12); the outer end of the inner telescopic shaft (46) penetrates through a strip-shaped opening (51) formed in the left side plate (14) or the right side plate (15) and then stretches into the connecting sleeve (441), and the inner end of the inner telescopic shaft is connected between the front plate (12) and the rear plate (13) of the cavity in a sliding mode through a slip seat (31) corresponding to the same side through a second connecting shaft (45).
6. The composite hydraulic gear drive anti-top anti-drop chuck of claim 5, wherein: each slip seat (31) is further provided with a mounting groove (311) and a lower through hole (312), the mounting grooves (311) are positioned at the lower part of the outer side wall of the slip seat (31), the openings of the mounting grooves (311) are downward, the mounting grooves are positioned at the middle position of the slip seat (31) in the front-back direction, and the lower through holes (312) penetrate through the front side wall and the rear side wall of the mounting grooves (311);
The inner end of the inner telescopic shaft (46) is positioned in a mounting groove (311) of the slip seat (31) corresponding to the same side, and the second connecting shaft (45) passes through a lower through hole (312) of the slip seat (31) corresponding to the same side and a through hole on the inner end of the inner telescopic shaft (46), and two ends of the second connecting shaft are respectively positioned in sliding grooves (17) on the same side on the front plate (12) and the rear plate (13), so that the slip seat (31) on the same side is slidably connected between the front plate (12) and the rear plate (13).
7. The composite hydraulic gear drive roof and fall prevention chuck of claim 5 or 6, wherein: the front ends of two first connecting shafts (44) in the gear transmission mechanism (4) in the same cavity vertically connect with sensor induction rods (47) after passing through the front plate (12) of the cavity;
Each cavity front plate (12) is provided with a clamping sensor (7) and an opening sensor (8) which correspond to the two sensor sensing rods (47), the clamping sensor (7) is arranged at a position close to the end plate (11), and the opening sensor (8) is arranged at a position close to the middle plate (16).
8. The composite hydraulic gear drive roof and fall prevention chuck of claim 5 or 6, wherein: the front ends of two first connecting shafts (44) in the gear transmission mechanism (4) in the same cavity vertically connect with sensor induction rods (47) after passing through the front plate (12) of the cavity;
each front plate (12) of the cavity is provided with a slip clamping position indicator (9) and a slip opening position indicator (10) which correspond to the two sensor sensing rods (47), the slip clamping position indicator (9) is arranged at a position close to the end plate (11), and the slip opening position indicator (10) is arranged at a position close to the middle plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410425094.0A CN118008170A (en) | 2024-04-10 | 2024-04-10 | Top anti-falling chuck is prevented in combined type hydraulic gear drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410425094.0A CN118008170A (en) | 2024-04-10 | 2024-04-10 | Top anti-falling chuck is prevented in combined type hydraulic gear drive |
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| Publication Number | Publication Date |
|---|---|
| CN118008170A true CN118008170A (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410425094.0A Pending CN118008170A (en) | 2024-04-10 | 2024-04-10 | Top anti-falling chuck is prevented in combined type hydraulic gear drive |
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| CN (1) | CN118008170A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0116563D0 (en) * | 2001-07-06 | 2001-08-29 | Coupler Developments Ltd | Improved drilling method & apparatus |
| CN2777180Y (en) * | 2005-01-10 | 2006-05-03 | 河北华北石油荣盛机械制造有限公司 | Automatic tightening type anti-pushing-up slips |
| ES2328979T3 (en) * | 2007-01-30 | 2009-11-19 | Bauer Maschinen Gmbh | HOLDING HEAD FOR A BAR ELEMENT WITH TENSORS. |
| CN202266203U (en) * | 2011-10-18 | 2012-06-06 | 西安秦森科技有限公司 | Snubbing top pressure prevention system |
| US20140262538A1 (en) * | 2013-03-15 | 2014-09-18 | Offshore Energy Services, Inc. | Multi-slip pipe gripping assembly |
| CN104481426A (en) * | 2014-12-02 | 2015-04-01 | 中国石油天然气股份有限公司 | Anti-ejection and anti-rising device of operating well |
| CN204386511U (en) * | 2014-11-12 | 2015-06-10 | 霸州市石大宏盛石化机械有限责任公司 | A kind of vertical oil pipe anti-jack slips |
| CN104775764A (en) * | 2015-04-24 | 2015-07-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Under-pressure operating device for low-pressure gas well |
| CN204532152U (en) * | 2015-01-23 | 2015-08-05 | 魏文科 | One is surged the built-in slips of pressure-bearing |
| CN110344778A (en) * | 2019-07-11 | 2019-10-18 | 西安宇星石油机械新技术开发有限公司 | Workover treatment rotary chuck |
| CN210033329U (en) * | 2019-03-22 | 2020-02-07 | 美钻石油钻采系统工程（上海）有限公司 | Screw type conical slip |
| CN212958515U (en) * | 2020-04-29 | 2021-04-13 | 廊坊景隆重工机械有限公司 | Bidirectional universal slip assembly |
| CN220621791U (en) * | 2023-09-01 | 2024-03-19 | 四川康特斯能源技术有限公司 | Novel axial loading type slip |
-
2024
- 2024-04-10 CN CN202410425094.0A patent/CN118008170A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050006147A1 (en) * | 2001-07-06 | 2005-01-13 | Ayling Laurence John | Method and apparatus with slips assembly for coupling tubulars without interruption of circulation |
| GB0116563D0 (en) * | 2001-07-06 | 2001-08-29 | Coupler Developments Ltd | Improved drilling method & apparatus |
| CN2777180Y (en) * | 2005-01-10 | 2006-05-03 | 河北华北石油荣盛机械制造有限公司 | Automatic tightening type anti-pushing-up slips |
| ES2328979T3 (en) * | 2007-01-30 | 2009-11-19 | Bauer Maschinen Gmbh | HOLDING HEAD FOR A BAR ELEMENT WITH TENSORS. |
| CN202266203U (en) * | 2011-10-18 | 2012-06-06 | 西安秦森科技有限公司 | Snubbing top pressure prevention system |
| US20140262538A1 (en) * | 2013-03-15 | 2014-09-18 | Offshore Energy Services, Inc. | Multi-slip pipe gripping assembly |
| CN204386511U (en) * | 2014-11-12 | 2015-06-10 | 霸州市石大宏盛石化机械有限责任公司 | A kind of vertical oil pipe anti-jack slips |
| CN104481426A (en) * | 2014-12-02 | 2015-04-01 | 中国石油天然气股份有限公司 | Anti-ejection and anti-rising device of operating well |
| CN204532152U (en) * | 2015-01-23 | 2015-08-05 | 魏文科 | One is surged the built-in slips of pressure-bearing |
| CN104775764A (en) * | 2015-04-24 | 2015-07-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Under-pressure operating device for low-pressure gas well |
| CN210033329U (en) * | 2019-03-22 | 2020-02-07 | 美钻石油钻采系统工程（上海）有限公司 | Screw type conical slip |
| CN110344778A (en) * | 2019-07-11 | 2019-10-18 | 西安宇星石油机械新技术开发有限公司 | Workover treatment rotary chuck |
| CN212958515U (en) * | 2020-04-29 | 2021-04-13 | 廊坊景隆重工机械有限公司 | Bidirectional universal slip assembly |
| CN220621791U (en) * | 2023-09-01 | 2024-03-19 | 四川康特斯能源技术有限公司 | Novel axial loading type slip |
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