CN104074482A - Elevator spider - Google Patents
Elevator spider Download PDFInfo
- Publication number
- CN104074482A CN104074482A CN201410262540.7A CN201410262540A CN104074482A CN 104074482 A CN104074482 A CN 104074482A CN 201410262540 A CN201410262540 A CN 201410262540A CN 104074482 A CN104074482 A CN 104074482A
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- main body
- spring piston
- slips
- slip
- safety plug
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Abstract
This invention introduces an elevator spider which includes a main body, a valve and a slip. The valve is connected with the main body and a guide ring is fixed at the bottom of the valve. The slip is a three-piece slip and is provided with slip teeth. The main body is equipped with an upper guide plate at the top and a lower guide plate at the bottom. The lower guide plate is connected with a lower taper guider. The main body also has a safety mechanism inside. With the three-piece slip structure design, the slip encloses a tubular column from the directions of 360 DEG while clamping and holding the tubular column. The tubular column suffers uniform stress in different directions. It is easy, convenient, safe and reliable to run casing. If the slip rises, the safety mechanism can function automatically. Therefore, the accident can be avoided when the slip or the slip teeth are changed and the regular operation can be ensured even a shaft deviates.
Description
Technical field
The present invention relates to a kind of equipment using in oil, natural gas casing job process, relate in particular to a kind of elevator chuck.
Background technology
Existing casing job cooperatively interacts to carry out operation with casing elevator and casing slip conventionally, Ye You drilling team carries out casing job with casing elevator/chuck, casing elevator/the chuck main body using is at present two-piece type mechanism, after slips promotes, can not automatic locking, when changing slips and slip insert, be prone to accidents, also bad use in the situation that well is inclined to one side.Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
For addressing the above problem, the invention provides a kind of rational in infrastructurely, easy to operate, can meet the safe and reliable elevator chuck of oil, natural gas casing job.
The technical solution used in the present invention is:
Elevator chuck, comprise main body, valve and slips, described valve is connected with main body, described valve bottom is fixed with guide ring, and described slips is three-chip type slips, on described slips, slip insert is installed, described main body top is provided with top guide strip, described lower body part is provided with lower guide plates, and described lower guide plates is connected with the conical guider of below, and described body interior is provided with insurance institution.
Described valve is connected with main body by two joint pins.
Described insurance institution comprises insurance cylinder, safety plug, latch segment, spring piston assembly and joystick, described safety plug inserts in insurance cylinder and locks by latch segment, in latch segment, have for locking the dead bolt of safety plug, described joystick lower end is connected with spring piston assembly, the junction of described joystick lower end and spring piston assembly is provided with an overload pin, and this overload pin is used for controlling safety plug and moves up and down.
Described spring piston assembly comprises spring piston bar, spring and spring piston cover, and described spring and spring piston cover are all placed on spring piston bar.
One spacing place, right angle is formed at described safety plug top, and a spacing place, inclined-plane is formed at described safety plug bottom.
Beneficial effect of the present invention: adopt three-chip type slips structure design, holding tubing string realizes 360 degree and entirely surrounds, tubing string is stressed evenly, setting of casing is rapid, easy to operate, safe and reliable, after slips promotes, insurance institution can automatic locking, when changing slips and slip insert, can not have an accident, and in the situation that well is inclined to one side, might as well use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the top view of Fig. 1.
The structural representation of Tu3Wei insurance institution of the present invention.
The fundamental diagram of Tu4Wei insurance institution of the present invention.(Fig. 4 (a) handle is in upper position, and slips body is in buckling state; Fig. 4 (b) handle is in lower position, and slips body is in open mode; When Fig. 4 (c) slips body need to decline, upwards promote joystick) b handle wherein: 1, main body, 2, valve, 3, slips, 4, slip insert, 5, top guide strip, 6, lower guide plates, 7, guide ring, 8, conical guider, 9, insurance institution, 91, latch segment, 92, joystick, 93, spring piston bar, 94, spring, 95, spring piston cover, 96, insurance cylinder, 97, safety plug, 971, spacing place, right angle, 972, spacing place, inclined-plane, 98, dead bolt, 99, overload pin, 10, joint pin, 11, rack rod.
The specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only, for explaining the present invention, does not form the restriction to protection scope of the present invention.
As illustrated in fig. 1 and 2, elevator chuck of the present invention, comprises main body 1, valve 2 and slips 3, valve 2 is connected with main body 1, for convenient, connect, valve 2 is connected with main body 1 by two joint pins 10, and valve 2 bottoms are fixed with guide ring 7, slips 3 is three-chip type slips, slip insert 4 is installed on slips 3, and main body 1 top is provided with top guide strip 5, and main body 1 bottom is provided with lower guide plates 6, lower guide plates 6 is connected with the conical guider 8 of below, and main body 1 inside is provided with insurance institution 9.
Shown in Fig. 3, insurance institution 9 comprises insurance cylinder 96, safety plug 97, latch segment 91, spring piston assembly and joystick 92, safety plug 97 inserts in insurance cylinder 96 and locks by latch segment 91, in latch segment 91, have for locking the dead bolt 98 of safety plug 97, joystick 92 lower ends are connected with spring piston assembly, the junction of joystick lower end and spring piston assembly is provided with an overload pin 99, this overload pin 99 moves up and down for controlling safety plug 97, spring piston assembly comprises spring piston bar 93, spring 94 and spring piston cover 95, spring 94 and spring piston cover 95 are all placed on spring piston bar 93.
One spacing place 971, right angle is formed at safety plug 97 tops, and a spacing place 972, inclined-plane is formed at safety plug 97 bottoms.
Shown in Fig. 4 (a), now joystick 92 is in upper position, slips body is in buckling state, when prizing rack rod 11 with crow bar, safety plug 97 is locked by dead bolt 98, and dead bolt 98 is stuck in the spacing place 971, right angle of safety plug 97 tops formation, cannot prize, safety plug 97 can not move downward, and slips body can not move up, and plays safety effect;
Shown in Fig. 4 (b), now joystick 92 is in lower position, slips body is in open mode, overload pin 99 and joystick 92 act on by spring 94, stop safety plug 97 to move up, at this moment, in the spacing place 972, inclined-plane that the pin of overload shown in Fig. 4 (b) 99 ends form in safety plug 97 bottoms, slips body can not move down at open position locking;
Shown in Fig. 4 (c), when slips body need to decline, upwards promote joystick 92, overload pin 99 will depart from safety plug 97, and safety plug 97 will be conducted oneself with dignity and be moved upward by slips.
Valve 2 is connected with main body 1 by two joint pins 10, slip insert 4 is arranged in slips 3, top guide strip 5, lower guide plates 6 and conical guider 8 are all fixed in main body 1, valve bottom guide ring 7 is fixed on valve 2, insurance institution 9 is arranged on main body 1 inside, can effectively play safety effect.
Elevator chuck adopts three-chip type slips structure design, holds tubing string and realizes 360 degree and entirely surround, and tubing string is stressed, and evenly setting of casing is rapid, easy to operate, safe and reliable, and slips back cone adopts many ledge structures, and bearing load is larger.
This insurance institution 9, after slips 3 promotes, insurance institution 9 starts working, and when changing slips 3 or slip insert 4, slips 3 can not occur due to the situation of gravity fall, avoids having an accident, and has greatly promoted the safety of operation.Because three pages of slips 3 act on simultaneously, in the situation that well is inclined to one side, also can normally use.
Claims (5)
1. elevator chuck, comprise main body, valve and slips, it is characterized in that: described valve is connected with main body, described valve bottom is fixed with guide ring, and described slips is three-chip type slips, on described slips, slip insert is installed, described main body top is provided with top guide strip, described lower body part is provided with lower guide plates, and described lower guide plates is connected with the conical guider of below, and described body interior is provided with insurance institution.
2. elevator chuck according to claim 1, is characterized in that: described valve is connected with main body by two joint pins.
3. elevator chuck according to claim 1, it is characterized in that: described insurance institution comprises insurance cylinder, safety plug, latch segment, spring piston assembly and joystick, described safety plug inserts in insurance cylinder and locks by latch segment, in described latch segment, have for locking the dead bolt of safety plug, described joystick lower end is connected with spring piston assembly, the junction of described joystick lower end and spring piston assembly is provided with an overload pin, and this overload pin is used for controlling safety plug and moves up and down.
4. elevator chuck according to claim 3, is characterized in that: described spring piston assembly comprises spring piston bar, spring and spring piston cover, and described spring and spring piston cover are all placed on spring piston bar.
5. elevator chuck according to claim 3, is characterized in that: a spacing place, right angle is formed at described safety plug top, and a spacing place, inclined-plane is formed at described safety plug bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262540.7A CN104074482B (en) | 2014-06-13 | 2014-06-13 | Elevator spider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262540.7A CN104074482B (en) | 2014-06-13 | 2014-06-13 | Elevator spider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074482A true CN104074482A (en) | 2014-10-01 |
| CN104074482B CN104074482B (en) | 2016-08-24 |
Family
ID=51596048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410262540.7A Active CN104074482B (en) | 2014-06-13 | 2014-06-13 | Elevator spider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104074482B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761550A (en) * | 2019-10-21 | 2021-05-07 | 江苏如通石油机械股份有限公司 | Hydraulic elevator control mechanism with function of sensing entering of tubular column |
| CN113153179A (en) * | 2021-04-01 | 2021-07-23 | 中油智采(天津)科技有限公司 | Single-well overload separation device of single-machine multi-well pumping unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361940A (en) * | 1981-08-04 | 1982-12-07 | Bj-Hughes Inc. | Slip-type elevator locking mechanism |
| US20020041072A1 (en) * | 1998-08-14 | 2002-04-11 | Larry Wilson | Chuck with locking sleeve |
| CN201560727U (en) * | 2009-12-11 | 2010-08-25 | 中国石油集团长城钻探工程有限公司 | Anti-skidding slip of rotating control head |
| CN203257347U (en) * | 2013-05-23 | 2013-10-30 | 长沙探矿机械厂 | Chuck of drill rod of drilling machine |
| CN103573197A (en) * | 2012-08-09 | 2014-02-12 | 江苏如通石油机械股份有限公司 | Hydraulic slip |
| CN203948053U (en) * | 2014-06-13 | 2014-11-19 | 江苏如通石油机械股份有限公司 | Elevator chuck |
-
2014
- 2014-06-13 CN CN201410262540.7A patent/CN104074482B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361940A (en) * | 1981-08-04 | 1982-12-07 | Bj-Hughes Inc. | Slip-type elevator locking mechanism |
| US20020041072A1 (en) * | 1998-08-14 | 2002-04-11 | Larry Wilson | Chuck with locking sleeve |
| CN201560727U (en) * | 2009-12-11 | 2010-08-25 | 中国石油集团长城钻探工程有限公司 | Anti-skidding slip of rotating control head |
| CN103573197A (en) * | 2012-08-09 | 2014-02-12 | 江苏如通石油机械股份有限公司 | Hydraulic slip |
| CN203257347U (en) * | 2013-05-23 | 2013-10-30 | 长沙探矿机械厂 | Chuck of drill rod of drilling machine |
| CN203948053U (en) * | 2014-06-13 | 2014-11-19 | 江苏如通石油机械股份有限公司 | Elevator chuck |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761550A (en) * | 2019-10-21 | 2021-05-07 | 江苏如通石油机械股份有限公司 | Hydraulic elevator control mechanism with function of sensing entering of tubular column |
| CN113153179A (en) * | 2021-04-01 | 2021-07-23 | 中油智采(天津)科技有限公司 | Single-well overload separation device of single-machine multi-well pumping unit |
| CN113153179B (en) * | 2021-04-01 | 2022-06-24 | 中油智采(天津)科技有限公司 | Single-well overload separation device of single-machine multi-well pumping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104074482B (en) | 2016-08-24 |
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