CN208870551U - A kind of sleeve type hydraulic rotating slips - Google Patents

A kind of sleeve type hydraulic rotating slips Download PDF

Info

Publication number
CN208870551U
CN208870551U CN201821289471.9U CN201821289471U CN208870551U CN 208870551 U CN208870551 U CN 208870551U CN 201821289471 U CN201821289471 U CN 201821289471U CN 208870551 U CN208870551 U CN 208870551U
Authority
CN
China
Prior art keywords
slips
cylinder
fixed
sleeve
type hydraulic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201821289471.9U
Other languages
Chinese (zh)
Inventor
张建
王�华
许宏奇
屈志明
廖伟恒
李勇
马龙
胡俊成
祝钰明
王文胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rongsheng Machinery Manufacturing Co Ltd Of Huabei Petroleum Heibei
Original Assignee
Rongsheng Machinery Manufacturing Co Ltd Of Huabei Petroleum Heibei
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rongsheng Machinery Manufacturing Co Ltd Of Huabei Petroleum Heibei filed Critical Rongsheng Machinery Manufacturing Co Ltd Of Huabei Petroleum Heibei
Priority to CN201821289471.9U priority Critical patent/CN208870551U/en
Application granted granted Critical
Publication of CN208870551U publication Critical patent/CN208870551U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

The utility model discloses a kind of sleeve type hydraulic rotating slips, comprising: fixed sleeves cylinder, interior sliding sleeve, hydraulic cylinder fixed ear and fluid cylinder;The interior sliding sleeve is placed in the fixed sleeves cylinder;The hydraulic cylinder fixed ear is symmetricly set on the two sides of the interior sliding sleeve;One end of the fluid cylinder is fixed in the hydraulic cylinder fixed ear, and the other end is fixed on the pedestal of the fixed sleeves cylinder.The utility model, which discloses, provides a kind of sleeve type hydraulic rotating slips, it can be rotated together with tubing string, and liquid controling pipe line can close pressure with sustainable supply when rotating, make slips clamping tubing string always, it is completely in slave mode, and slips body assembly is able to bear the torque that tubing string rotation generates, and can satisfy the demand of the rotary operations such as salvaging, grinding.

Description

A kind of sleeve type hydraulic rotating slips
Technical field
The utility model relates to oil drilling, well workover technology field, more particularly to a kind of sleeve type hydraulic swing Turn slips.
Background technique
Slips is to be used to clamping tubing string in drilling well or well workover, holds tubing string weight to outstanding or prevents tubing string because of bottom pressure Effect and on the rig tool altered be frequently run onto milling, bore the rotary operations such as plug, at this moment in addition to needing to pipe but in operation Column is provided outside rotary power, it is also necessary to and a kind of rotation slips for capableing of clamping tubing string always in rotary operation carrys out coordinative construction, But existing hydraulic pressure pipe slips are when tubing string needs to carry out rotary operation, it is necessary to liquid controling pipe line be removed, tubing string can be made to be in this way Incomplete slave mode is easy to happen and alters event of running affairs.
Therefore, how a kind of sleeve type hydraulic rotating card that same tubing string rotates together, while keeping tubing string entirely controlled is provided The problem of watt being those skilled in the art's urgent need to resolve.
Utility model content
In view of this, the present invention provides a kind of sleeve type hydraulic rotating slips, can rotate with tubing string, and Liquid controling pipe line can close pressure with sustainable supply when rotation, make slips clamping tubing string always, be completely in slave mode, and slips Body assembly is able to bear the torque that tubing string rotation generates, and can satisfy the demand of the rotary operations such as salvaging, grinding.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of sleeve type hydraulic rotating slips, comprising: fixed sleeves cylinder, interior sliding sleeve and hydraulic cylinder fixed ear and liquid Cylinder;The interior sliding sleeve is placed in the fixed sleeves cylinder, and realization slides up and down;The hydraulic cylinder fixed ear is symmetrical arranged In the two sides of the interior sliding sleeve;One end of the fluid cylinder is fixed in the hydraulic cylinder fixed ear, and the other end is fixed on institute On the pedestal for stating fixed sleeves cylinder;
Wherein, slips shell, socket cover, slips body, slips housing, bearing, bearing are provided in the interior sliding sleeve Positioning sleeve, slip insert, connecting plate and sliding copper sheathing;The socket cover is fixed on the top of the fixed sleeves cylinder;The slips shell Body is connected and fixed by bolt and turntable;The slips housing is fixed on the slips shell;The slips body and the company Plate is attached;The sliding copper sheathing is mounted on the connecting plate, and is slided in the slips housing, to drive the card Watt body moves up and down;The slip insert is mounted on the slips body;The slips body is at least provided with 4;The slips body Bottom end is fixedly connected with the connecting plate, and is slided on the track of the slips housing;Slips body top by connecting rod with The bearing positioning sleeve carries out hinged;The bearing is placed in the bearing positioning sleeve, and the bearing is covered by bearing gland Positioning sleeve.
By above-mentioned technical characteristic, the technical effect of the utility model: in use, interior under the drive of fluid cylinder Sliding sleeve slides up and down, while connecting rod drives slips body and slip insert to realize the movement of either on or off, is used for clamping or release Tubing string;It is provided with bearing in the bearing gland connecting with interior sliding sleeve, and has bearing positioning sleeve to position bearing, it is fixed in bearing Position set lower end be connected on slips body by connecting rod, make in hydraulic rotating slips rotating mechanism (slips body, slips housing, Bearing positioning sleeve etc.) kept apart with non-rotating mechanism (interior sliding sleeve, bearing gland etc.) by bearing.
Preferably, in a kind of above-mentioned sleeve type hydraulic rotating slips, slip insert locking is installed on the slips body Screw.
By above-mentioned technical characteristic, the technical effect of the utility model: slip insert lock screw is for locking slip insert.
Preferably, in a kind of above-mentioned sleeve type hydraulic rotating slips, the socket cover and the fixed sleeves cylinder it Between place dustband.
By above-mentioned technical characteristic, the technical effect of the utility model: the setting of dustband prevents impurity from entering outer fixation Gap between sleeve and interior sliding sleeve, prolongs the service life, and reduces abrasion.
Preferably, in a kind of above-mentioned sleeve type hydraulic rotating slips, the fixed sleeves cylinder and the interior sliding sleeve Spline is provided between cylinder.
By above-mentioned technical characteristic, the technical effect of the utility model: prevent between interior sliding sleeve and fixed sleeves cylinder Mutually torsion, while playing the guiding role when interior sliding sleeve slides up and down.
Preferably, in a kind of above-mentioned sleeve type hydraulic rotating slips, the bearing positioning sleeve and the bearing gland Between gap place rotating seal ring.
By above-mentioned technical characteristic, the technical effect of the utility model: prevent impurity from entering fixed sleeves cylinder and interior sliding Gap between sleeve, prolongs the service life, and reduces abrasion.
Preferably, in a kind of above-mentioned sleeve type hydraulic rotating slips, the slips housing connects with the slips body Contacting surface is inclined-plane.
By above-mentioned technical characteristic, the technical effect of the utility model: being on the one hand able to bear the torque generated when rotation, On the other hand the wedge structure can guarantee that slips body when sliding along the inclined-plane of slips housing, the more is embraced the more tight, i.e., slip insert is held The power received is bigger, bigger to the enclasping force of tubing string.
Preferably, in a kind of above-mentioned sleeve type hydraulic rotating slips, the sleeve type hydraulic rotating slips is set in pairs It sets, and symmetrical about turntable.
Preferably, in a kind of above-mentioned sleeve type hydraulic rotating slips, the turntable includes: connecting cross beam, connection method Blue and second bearing;The slips shell is attached with the connecting flange;The fixed sleeves cylinder and the connecting cross beam It is attached;Second bearing is provided between the connecting cross beam and the connecting flange.
By above-mentioned technical characteristic, the technical effect of the utility model: pairs of sleeve type hydraulic rotating slips cooperation is passive Turntable, slips shell are rotated with turntable, and the components such as slips housing are connected with bearing inner race, are passively revolved by the rotation function of bearing Turn, and the inner and outer sleeves for installing fluid cylinder are not rotated as the fixation catch mechanism of bearing, in rotary operation, sleeve type is hydraulic The hydraulic line of rotation slips, being capable of sustainable supply closing pressure there is no need to disassemble.
Preferably, in a kind of above-mentioned sleeve type hydraulic rotating slips, the turntable includes: connecting cross beam, connection method Orchid, gear wheel, pinion gear, hydraulic motor and turntable shell;The slips of one of them sleeve type hydraulic rotating slips Shell is fixedly connected with the gear wheel, and the fixed sleeves cylinder is fixedly connected with the turntable shell;Another described sliding sleeve The slips shell of formula hydraulic rotating slips is fixedly connected with the connecting flange, and the fixed sleeves cylinder and the connection are horizontal Beam is attached;The pinion gear is mounted in the shaft of the hydraulic motor;The gear wheel engages biography with the pinion gear It is dynamic.
By above-mentioned technical characteristic, the technical effect of the utility model: pairs of sleeve type hydraulic rotating slips cooperation is actively Turntable realizes that slips shell drives tubing string rotation.
Preferably, in a kind of above-mentioned sleeve type hydraulic rotating slips, in the fixed sleeves cylinder and interior sliding sleeve Contact surface, the bearing and the second bearing rubbing surface are all provided with grease nipple, for the lubrication between component, extend and use the longevity Life reduces abrasion.
It can be seen via above technical scheme that compared with prior art, the utility model, which discloses, provides a kind of sleeve type Hydraulic rotating slips can passively be rotated with tubing string, and liquid controling pipe line can close pressure with sustainable supply when rotation, and slips be made to begin Whole clamping tubing string is completely in slave mode, and slips body assembly is able to bear the torque that tubing string rotation generates, and can satisfy and beats The demand of the rotary operations such as fishing, grinding.In use, under the drive of fluid cylinder, interior sliding sleeve is slided up and down, and is connected simultaneously Bar drives slips body and slip insert to realize the movement of either on or off, for clamping or unclamps tubing string;It is connect with interior sliding sleeve Bearing gland be provided with bearing, and there is bearing positioning sleeve to position bearing, pass through connecting rod in the lower end of bearing positioning sleeve and connect On slips body, so that sliding sleeve is rotated together with bearing positioning sleeve and bearing in realizing.Slips housing connects with slips body Contacting surface is inclined-plane, is on the one hand able to bear the torque generated when rotation, on the other hand the wedge structure can guarantee that slips body exists When being slided along the inclined-plane of slips housing, the more embrace the more tight, i.e. the power of slip insert receiving is bigger, bigger to the enclasping force of tubing string.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 attached drawing is the main view of the utility model;
Fig. 2 attached drawing is the top view of the utility model;
Fig. 3 attached drawing is the schematic diagram that the utility model cooperates passive turntable;
Fig. 4 attached drawing is the schematic diagram that the utility model cooperates active turntable.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model embodiment discloses a kind of sleeve type hydraulic rotating slips, can rotate with tubing string, and when rotation Liquid controling pipe line can close pressure with sustainable supply, make slips clamping tubing string always, be completely in slave mode, and slips body assembly It is able to bear the torque that tubing string rotation generates, can satisfy the demand of the rotary operations such as salvaging, grinding.
Embodiment 1
A kind of sleeve type hydraulic rotating slips, comprising: fixed sleeves cylinder 2, interior sliding sleeve 3,17 and of hydraulic cylinder fixed ear Fluid cylinder 18;Interior sliding sleeve 3 is placed in fixed sleeves cylinder 2, and realization slides up and down;Including hydraulic cylinder fixed ear 17 is symmetrical arranged The two sides of sliding sleeve 3;One end of fluid cylinder 18 is fixed in hydraulic cylinder fixed ear 17, and the other end is fixed on fixed sleeves cylinder 2 On pedestal;
Wherein, interior sliding sleeve 3 is internally provided with: slips shell 4, socket cover 5, slips body 7, slips housing 8, bearing 13, bearing positioning sleeve 14, slip insert 15, connecting plate 19 and sliding copper sheathing 20;Socket cover 5 is fixed on the top of fixed sleeves cylinder 2;Card Watt shell 4 is connected and fixed by bolt and turntable;Slips housing 8 is fixed on slips shell 4;Sliding copper sheathing 20 is mounted on connecting plate On 19, and 8 sliding in slips housing, so that slips body 7 be driven to move up and down;Slip insert 15 is mounted on slips body 7;Slips Body 7 is at least provided with 4;7 bottom end of slips body is fixedly connected with connecting plate 19, and is slided on the track of slips housing 8;Slips 7 top of body is carried out hingedly by connecting rod 9 and bearing positioning sleeve 14;Bearing 13 is placed in bearing positioning sleeve 14, and by bearing gland 12 covering bearing positioning sleeves 14.
In order to further optimize the above technical scheme, slip insert lock screw 10 is installed on slips body 7.
In order to further optimize the above technical scheme, dustband 6 is placed between socket cover 5 and fixed sleeves cylinder 2.
In order to further optimize the above technical scheme, spline 1 is provided between fixed sleeves cylinder 2 and interior sliding sleeve 3.
In order to further optimize the above technical scheme, rotation is placed in the gap between bearing positioning sleeve 14 and bearing gland 12 Sealing ring 11.
In order to further optimize the above technical scheme, the contact surface of slips housing 8 and slips body 7 is inclined-plane.
In order to further optimize the above technical scheme, sleeve type hydraulic rotating slips is arranged in pairs, and about turntable pair Claim.
In order to further optimize the above technical scheme, it includes: connecting cross beam 21,22 and of connecting flange that turntable, which is passive turntable, Second bearing 23;Slips shell 4 is attached with connecting flange 22;Fixed sleeves cylinder 2 is attached with connecting cross beam 21;Even It connects and is provided with second bearing 23 between crossbeam 21 and connecting flange 22.
Embodiment 2
A kind of sleeve type hydraulic rotating slips, comprising: fixed sleeves cylinder 2, interior sliding sleeve 3,17 and of hydraulic cylinder fixed ear Fluid cylinder 18;Interior sliding sleeve 3 is placed in fixed sleeves cylinder 2;Hydraulic cylinder fixed ear 17 is symmetrical arranged the two of interior sliding sleeve 3 Side;One end of fluid cylinder 18 is fixed in hydraulic cylinder fixed ear 17, and the other end is fixed on the pedestal of fixed sleeves cylinder 2;
Wherein, be provided in interior sliding sleeve 3 slips shell 4, socket cover 5, slips body 7, slips housing 8, bearing 13, Bearing positioning sleeve 14, slip insert 15, connecting plate 19 and sliding copper sheathing 20;Socket cover 5 is fixed on the top of fixed sleeves cylinder 2;Slips Shell 4 is connected and fixed by bolt and turntable;Slips housing 8 is fixed on slips shell 4;Sliding copper sheathing 20 is mounted on connecting plate 19 On, and 8 sliding in slips housing, so that slips body 7 be driven to move up and down;Slip insert 15 is mounted on slips body 7;Slips body 7 at least provided with 4;7 bottom end of slips body is fixedly connected with connecting plate 19, and is slided on the track of slips housing 8;Slips body 7 Top is carried out hingedly by connecting rod 9 and bearing positioning sleeve 14;Bearing 13 is placed in bearing positioning sleeve 14, and is covered by bearing gland 12 Lid bearing positioning sleeve 14.
In order to further optimize the above technical scheme, slip insert lock screw 10 is installed on slips body 7.
In order to further optimize the above technical scheme, dustband 6 is placed between socket cover 5 and fixed sleeves cylinder 2.
In order to further optimize the above technical scheme, spline 1 is provided between fixed sleeves cylinder 2 and interior sliding sleeve 3.
In order to further optimize the above technical scheme, rotation is placed in the gap between bearing positioning sleeve 14 and bearing gland 12 Sealing ring 11.
In order to further optimize the above technical scheme, the contact surface of slips housing 8 and slips body 7 is inclined-plane.
In order to further optimize the above technical scheme, sleeve type hydraulic rotating slips is arranged in pairs, and about turntable pair Claim.
In order to further optimize the above technical scheme, turntable be main turn disk include: connecting cross beam 21, connecting flange 22, Gear wheel 24, pinion gear 25, hydraulic motor 26 and turntable shell 27;The slips shell of one of sleeve type hydraulic rotating slips 4 are fixedly connected with gear wheel 24, and fixed sleeves cylinder 2 is fixedly connected with turntable shell 27;Another sleeve type hydraulic rotating slips Slips shell 4 be fixedly connected with connecting flange 22, fixed sleeves cylinder 2 is attached with connecting cross beam 21;Pinion gear 25 is installed In the shaft of hydraulic motor 26;25 engaged transmission of gear wheel 24 and pinion gear.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part It is bright.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (9)

1. a kind of sleeve type hydraulic rotating slips characterized by comprising fixed sleeves cylinder (2), interior sliding sleeve (3), hydraulic Cylinder fixed ear (17) and fluid cylinder (18);The interior sliding sleeve (3) is placed in the fixed sleeves cylinder (2), glides in realization It is dynamic;The hydraulic cylinder fixed ear (17) is symmetricly set on the two sides of the interior sliding sleeve (3);One end of the fluid cylinder (18) is solid Due on the hydraulic cylinder fixed ear (17), the other end is fixed on the pedestal of the fixed sleeves cylinder (2);Wherein, in described Sliding sleeve (3) is internally provided with: slips shell (4), socket cover (5), slips body (7), slips housing (8), bearing (13), axis Hold positioning sleeve (14), slip insert (15), connecting plate (19) and sliding copper sheathing (20);
The socket cover (5) is fixed on the top of the fixed sleeves cylinder (2);The slips shell (4) passes through bolt and turntable It is connected and fixed;The slips housing (8) is fixed on the slips shell (4);The slips body (7) and the connecting plate (19) into Row connection, the sliding copper sheathing (20) is mounted on the connecting plate (19), and slides on the slips housing (8), thus band The slips body (7) is moved to move up and down;
The slip insert (15) is mounted on the slips body (7);The slips body (7) is at least provided with 4;The slips body (7) bottom end is fixedly connected with the connecting plate (19), and is slided on the track of the slips housing (8);Slips body (7) top End is carried out hinged by connecting rod (9) and the bearing positioning sleeve (14);The bearing is placed in the bearing positioning sleeve (14) (13), and by bearing gland (12) the bearing positioning sleeve (14) is covered.
2. a kind of sleeve type hydraulic rotating slips according to claim 1, which is characterized in that pacify on the slips body (7) Equipped with slip insert lock screw (10).
3. a kind of sleeve type hydraulic rotating slips according to claim 1, which is characterized in that the socket cover (5) and institute State placement dustband (6) between fixed sleeves cylinder (2).
4. a kind of sleeve type hydraulic rotating slips according to claim 1, which is characterized in that the fixed sleeves cylinder (2) Spline (1) is provided between the interior sliding sleeve (3).
5. a kind of sleeve type hydraulic rotating slips according to claim 1, which is characterized in that the bearing positioning sleeve (14) Place rotating seal ring (11) in gap between the bearing gland (12).
6. a kind of sleeve type hydraulic rotating slips according to claim 1, which is characterized in that the slips housing (8) with The contact surface of the slips body (7) is inclined-plane.
7. a kind of sleeve type hydraulic rotating slips according to claim 1-6, which is characterized in that the sleeve type Hydraulic rotating slips is preferably arranged in pairs, and symmetrical about turntable.
8. a kind of sleeve type hydraulic rotating slips according to claim 7, which is characterized in that the turntable is passive turntable It include: connecting cross beam (21), connecting flange (22) and second bearing (23);The slips shell (4) and the connecting flange (22) it is attached;The fixed sleeves cylinder (2) is attached with the connecting cross beam (21);The connecting cross beam (21) and institute It states and is provided with second bearing (23) between connecting flange (22).
9. a kind of sleeve type hydraulic rotating slips according to claim 7, which is characterized in that the turntable is main turn disk It include: connecting cross beam (21), connecting flange (22), gear wheel (24), pinion gear (25), hydraulic motor (26) and turntable shell (27);The slips shell (4) of one of them sleeve type hydraulic rotating slips is fixedly connected with the gear wheel (24), The fixed sleeves cylinder (2) is fixedly connected with the turntable shell (27);The institute of another sleeve type hydraulic rotating slips Slips shell (4) is stated to be fixedly connected with the connecting flange (22), the fixed sleeves cylinder (2) and the connecting cross beam (21) into Row connection;The pinion gear (25) is mounted in the shaft of the hydraulic motor (26);The gear wheel (24) and the small tooth Take turns (25) engaged transmission.
CN201821289471.9U 2018-08-10 2018-08-10 A kind of sleeve type hydraulic rotating slips Active CN208870551U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821289471.9U CN208870551U (en) 2018-08-10 2018-08-10 A kind of sleeve type hydraulic rotating slips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821289471.9U CN208870551U (en) 2018-08-10 2018-08-10 A kind of sleeve type hydraulic rotating slips

Publications (1)

Publication Number Publication Date
CN208870551U true CN208870551U (en) 2019-05-17

Family

ID=66464488

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821289471.9U Active CN208870551U (en) 2018-08-10 2018-08-10 A kind of sleeve type hydraulic rotating slips

Country Status (1)

Country Link
CN (1) CN208870551U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108915618A (en) * 2018-08-10 2018-11-30 河北华北石油荣盛机械制造有限公司 A kind of sleeve type hydraulic rotating slips

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108915618A (en) * 2018-08-10 2018-11-30 河北华北石油荣盛机械制造有限公司 A kind of sleeve type hydraulic rotating slips
CN108915618B (en) * 2018-08-10 2024-09-13 河北华北石油荣盛机械制造有限公司 Sliding sleeve type hydraulic rotary slip

Similar Documents

Publication Publication Date Title
CA2646012C (en) Seal assembly for use in a top drive
US9347265B2 (en) Top drive systems for wellbore and drilling operations
AU2015201488B2 (en) Swivel elevator
US20220381091A1 (en) Top drive, traction motor de-coupling device
CN208870551U (en) A kind of sleeve type hydraulic rotating slips
CN108915618A (en) A kind of sleeve type hydraulic rotating slips
US5370179A (en) Drive head for rotary down hole pump
CN105239941B (en) Annular drill pipe tong
CN103615192B (en) Hydraulic top driving device of drilling machine
CA2984809A1 (en) Rotating split tubing hanger
CA2541142A1 (en) Tubing rotator
CN205225117U (en) Annular drilling rod power tong
US20080210437A1 (en) Top drive with shaft seal isolation
CN109025797B (en) Drilling machine top drive transmission device, drilling machine top drive and drilling machine
CN110630190B (en) Box elevator and well workover rig
CN205936429U (en) Buffering formula drilling rod connector
CN115584925A (en) Drilling top drive system
CN203685018U (en) Hydraulic top driving device of drilling machine
CN208330180U (en) A kind of architectural engineering Rotary table for drilling machine device
CN207260971U (en) Primary speed-down component and the oild chuck formula drill rod grip device for installing the component
CN207634043U (en) A kind of drilling rod Fast Installation and provision for disengagement
CN106150387A (en) The hinged driving-shaft assembly of helicoid hydraulic motor
CN106801584B (en) Rotary power well repairing device
RU2237790C1 (en) Upper power drive for drilling device
CN205638287U (en) Roller type holder

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Sliding sleeve type hydraulic rotary slip

Effective date of registration: 20211229

Granted publication date: 20190517

Pledgee: China Construction Bank Corporation North China Petroleum Branch

Pledgor: RONGSHENG MACHINERY MANUFACTURE Ltd. OF HUABEI OILFIELD

Registration number: Y2021980017013

PE01 Entry into force of the registration of the contract for pledge of patent right