CN202900094U - Power tongs bearing protective jacket of continuous circulation well drilling system - Google Patents
Power tongs bearing protective jacket of continuous circulation well drilling system Download PDFInfo
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- CN202900094U CN202900094U CN 201220446223 CN201220446223U CN202900094U CN 202900094 U CN202900094 U CN 202900094U CN 201220446223 CN201220446223 CN 201220446223 CN 201220446223 U CN201220446223 U CN 201220446223U CN 202900094 U CN202900094 U CN 202900094U
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- bearing
- cover
- protective cover
- turnbarrel
- chucking
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Abstract
The utility model discloses a power tongs bearing protective jacket of a continuous circulation well drilling system. The power tongs bearing protective jacket of the continuous circulation well drilling system is applied to protecting the power tongs bearing protective jacket of the continuous circulation well drilling system. The power tongs bearing protective jacket of the continuous circulation well drilling system comprises a clamping sleeve bearing shield, a rotation sleeve bearing shield, a transmission gear bearing shield and a base discharge hole. A clamping sleeve bearing shield device is composed of an upper annular press cover and a lower annular press cover, at the same time, the upper annular press cover and the lower annular press cover connect a clamping sleeve, a bearing of the clamping sleeve and a clamping lifting plate into a whole, and at the same time, the clamping sleeve can rotate relative to the clamping lifting plate. The rotation sleeve bearing shield is protected through the annular protective jacket which is not contacted with a bearing seat, and the rotation sleeve bearing is protected without a seal ring. A transmission gear bearing is protected by utilizing an annular protecting cover fixed on the end face of a bearing seat hole. The base discharge hole is used for discharging drilling fluid and the like in an inner cavity of a base. The power tongs bearing protective jacket of the continuous circulation well drilling system has the advantages that power tongs bearing working environment is improved, solid bodies or liquid foreign materials are prevented from entering the bearing, the time of becoming invalid of a lubricating agent is slowed down , and service life of the bearing is prolonged.
Description
Technical field
The utility model relates to the drilling equipment field in the petroleum industry, the particularly means of defence of Continuous Circulation Drilling System Power Tong bearing and device.
Background technology
Conventional rotary drilling must be implemented to stop/the turn on pump operation when making up a joint, and this operation will cause bottom hole pressure surge and landwaste sedimentation inevitably, very easily cause the accidents such as well kick, leakage, gas cut, cave-in, bit freezing and bury drills at bad ground.
In order to address the above problem, at first to have proposed the concept of continuous cyclic drilling (Continuous Circulation System) abroad, and applied for Patents (US6591916B1, US6315051B1, CA2550981A1).Develop afterwards the continuous circulation system model machine abroad, and successfully realized commercial applications (SPE102851, SPE102859, SPE90702), become an advanced person's technical equipment.External continuous circulation system is mainly by main frame, part flow arrangement, power unit and composition of the control system.Main frame is the core of continuous circulation system, mainly comprises Power Tong (Iron roughneck), by force running and pulling device (Snubber), three blowout preventer set (BOP) and bottom power slip (Power slip) etc.
At present, PetroChina Company Limited.'s drilling well institute independent development domestic First LXZ type Continuous Circulation Drilling System.Power Tong on this system host is one of critical component, mainly is comprised of clamping body assembly, upper screw-off mechanism assembly, cupboard button device assembly and base assembly four large parts.Have spinner, link closely and the shackle function, can also under the driving of running and pulling device by force, can move up and down simultaneously.Clamping body in the Power Tong mainly is comprised of chucking lifting disk, chucking sleeve, chucking connecting rod and chucking clamp etc., the chucking sleeve is connected by bearing with tightening between the lifting disk, the chucking sleeve can move up and down with the chucking lifting disk, and then separate or close up by connecting rod driver card clencher, and when spinner, the chucking sleeve can be under travelling gear and turnbarrel drive relatively tightens lifting disk and rotates.Turnbarrel and travelling gear are installed on the centre bore of Power Tong base, and by upper and lower two bearings of base, the two is connected by screw and is integrated, and can rotate relative to base.The Power Tong working environment is more abominable; invade bearing if any foreign such as solid foreign materials (such as landwaste etc.), liquid foreign matters (such as drilling fluid); bearing lubricant runs off; or External Force Acting and damage the consumable accessorys such as bearing roller or retainer; can affect the life-span of bearing; even directly affect the normal operation of Power Tong; so the Power Tong inner bearing must have sealing and dustproof and prevent the protectors such as drilling fluid intrusion; but the Power Tong inner space is limited, and some bearing can't be protected with conventional protection method.
Summary of the invention
The purpose of this utility model is: a kind of Continuous Circulation Drilling System Power Tong protection cover is provided, solve Power Tong internal bearings protection question, prevent solid or liquid foreign matter intrusion Power Tong internal bearings, avoid damaging because of External Force Acting the consumable accessorys such as bearing roller or retainer, slow down simultaneously bearing lubricant and run off, play and improve the bearing effect in application life.
The technical solution adopted in the utility model is: a kind of Continuous Circulation Drilling System Power Tong protection cover is characterized in that: the protector, the protector of turnbarrel bearing b, the protector of travelling gear bearing c and protector four parts of base that comprise chucking sleeve bearing a.
The protector of chucking sleeve bearing a is comprised of upper press cover and lower cover; chucking sleeve cold charge enters the inner ring of bearing a; the outer ring of bearing a is pressed on the bearing support a of chucking lifting disk; the outer ring of bearing a together with the chucking lifting disk by ball base on the inner ring of bearing a and chucking sleeve; the pressure-bearing surface of upper press cover is pushed down the upper surface of chucking lifting disk; upper press cover is fixed on the chucking lifting disk by screw b; the pressure-bearing surface of lower cover is pushed down chucking sleeve lining lower surface; upper press cover and lower cover utilize screw c to couple together; to tighten sleeve and bearing a thereof is connected as a single entity with the chucking lifting disk; not only play the effect of protection bearing a; and the chucking sleeve both can be moved up and down with the chucking lifting disk, also can rotate relative to tightening lifting disk.Lower cover is by the annular that forms of circular arc piece of three 120 degree angles, and three circular arc pieces are along the circumference installation that is evenly distributed.
Turnbarrel bearing b utilizes protective cover to protect; the protective cover of turnbarrel bearing b is divided into ring cover and pipe wall two parts; ring cover is a ring plate; the outer wall face of cylinder of its center hole and turnbarrel is interference fit; the ring cover outer circumferential edge is along the connecting circular tube wall; pipe wall face of cylinder bus is vertical with the ring cover plane; pipe wall bottom is provided with interior chamfering; shielding cover is on the turnbarrel outer wall face of cylinder; cooperate with turnbarrel outer wall cylindrical interference by the ring cover center hole protective cover and turnbarrel are connected as one; utilize simultaneously the shoulder of turnbarrel that axial location is carried out in the ring cover lower surface; the bearing support b of turnbarrel is provided with the outer chamfering structure that chamfering cooperates in the pipe wall bottom with protective cover; after protective cover installs and fixes; chamfering is positioned at directly over the outer chamfering of bearing support b in the protective cover; keep suitable end play between the two; therefore protective cover can together rotate relative to bearing support b with turnbarrel; form simultaneously a bearing protection chamber; protective cover does not contact with bearing support b, and need not sealing ring.
The protector of travelling gear bearing c is to implement protection by annular protective cover.Be provided with the screw hole corresponding with the outer face screwed hole of travelling gear bearing support c on the protective cover, utilize screw d that protective cover is fixed on bearing support c outer face, and between the outer face of protective cover and bearing support c, add sealing mat; In addition, end face relative with travelling gear on the protective cover is processed with seal groove, and has laid sealing ring, is used for preventing that foreign matter is from the intrusion of the space between protective cover and travelling gear bearing c.
The protector of base is to be provided with the drilling fluid discharge orifice in the base bottom, is fixed with plug on the drilling fluid discharge orifice, is used for discharging the drilling fluid that flows into base intracavity.
The installation of summary Continuous Circulation Drilling System Power Tong protection cover.
1) chucking sleeve bearing protector is installed: smear capacity lubrication oil at bearing, to tighten first the sleeve cold charge and enter bearing inner race, again the outer ring is pressed on the bearing support of chucking lifting disk, after ball put into inner ring, the outer ring is placed on the ball together with the chucking lifting disk, then upper press cover is put into chucking lifting disk centre bore, its pressure-bearing surface is pushed down the upper surface of chucking lifting disk, and with screw be fixed in the chucking lifting disk on, prevent its rotation, the pressure-bearing surface of lower cover then is pressed in chucking sleeve lining lower surface, by screw upper press cover and lower cover is coupled together at last, makes the chucking sleeve, bearing and chucking lifting disk are connected as a single entity, in addition, for ease of installation and removal, lower cover is divided into three, three lower covers are 120 degree angles along circumference and evenly distribute.
2) turnbarrel protection cover is installed: the bearing that will smear first the capacity sliding agent is pressed into centre hole of base upper shaft bearing, to turn round the sleeve cold charge enters in the bearing inner race again, then by the hot charging mode, from revolution sleeve top shielding cover at the revolving sleeve drum outer wall, and make shoulder close contact on protective cover annular disk lower surface and the revolving sleeve drum outer wall, after the protective cover cooling, protective cover is combined as a whole with the revolution sleeve, guarantees to keep between bearing support and the protective cover suitable end play by the dimensional tolerance of protective cover cylindrical wall, bearing support and revolution sleeve.
3) travelling gear bearing protective cover is installed: along the circumferential direction be evenly arranged some screwed holes in travelling gear bearing support outer face, also arrange by screw protective cover to be fixed on the bearing support outer face by corresponding screw hole on protective cover.
The beneficial effects of the utility model: the utility model Continuous Circulation Drilling System Power Tong protection cover; effectively improved the working environment of Power Tong bearing, can prevent solid or liquid foreign matter intrusion bearing, slowed down the bearing in-lubricant and lost efficacy; help to protect bearing, improve bearing application life.In addition, protective device structure is simple, and easy installation and removal is conducive to bearing is carried out care and maintenance.
Description of drawings
Fig. 1 is the utility model Continuous Circulation Drilling System Power Tong protection principle schematic.
Fig. 2 is partial enlarged drawing I among Fig. 1, expression chucking sleeve bearing safeguard structure figure.
Fig. 3 a is the upper press cover sectional structure chart, and Fig. 3 b is the lower cover structure chart.
Fig. 4 is partial enlarged drawing II among Fig. 1, expression turnbarrel protection structure chart.
Fig. 5 is the protective cover sectional structure chart.
Fig. 6 is partial enlarged drawing III among Fig. 1, expression travelling gear bearing safeguard structure figure.
Fig. 7 is the protective cover sectional structure chart.
Fig. 8 is Power Tong base sectional structure chart.
Among the figure, 1-tightens lifting disk, and 2-tightens sleeve, 3-chucking sleeve bearing a, 4-upper press cover, 5-lower cover, the 6-connecting rod, 7-chucking clamp, 8-turnbarrel, 9-turnbarrel bearing b, the 10-protective cover, 11-Power Tong base, 12-travelling gear, the 13-protective cover, 14-travelling gear bearing c, 15-screw a, 16-bearing a inner ring, 17-bearing a outer ring, 18-chucking lifting disk bearing support a, the upper surface of 19-chucking lifting disk, 20-screw b, 21-chucking sleeve lining lower surface, 22-screw c, 23-upper press cover pressure-bearing surface, 24-lower cover pressure-bearing surface, 25-bearing b inner ring, 26-bearing b outer ring, 27-centre hole of base upper shaft bearing b, the outer chamfering of 28-bearing support b, 29-turnbarrel shoulder, the 30-turnbarrel outer wall face of cylinder, 31-protective cover ring cover, 32-protective cover cylindrical wall, chamfering in the 33-cylindrical wall, 34-protective cover centre bore, 35-bearing c inner ring, 36-bearing c outer ring, 37-centre hole of base bottom end bearing seat c, 38-bearing support c outer face, 39-screwed hole, 40-screw hole, 41-screw d, the 42-sealing mat, 43-sealing ring, 44-seal groove, 45-base discharge orifice, the 46-plug, 47-chucking quill bearing a ', 48-turnbarrel bearing support b ', 49-travelling gear bearing support c ', the 50-base intracavity.
The specific embodiment
Embodiment 1: consult Fig. 1, chucking rotating mechanism in the Power Tong mainly is comprised of chucking lifting disk 1, chucking sleeve 2, bearing a3, chucking connecting rod 6, chucking clamp 7, turnbarrel 8, bearing b9, travelling gear 12 and bearing c14 etc., chucking sleeve 2 is connected by bearing a3 with tightening between the lifting disk 1, chucking sleeve 2 can move up and down with chucking lifting disk 1, and then separate or close up by connecting rod 6 driver card clenchers 7, and when spinner, chucking sleeve 2 can be under travelling gear 12 and turnbarrel 8 drives relatively tightens lifting disk 1 and rotates.Turnbarrel 8 is installed on the centre bore of Power Tong base 11 with travelling gear 12, is supported by the bearing b9 on the base and bearing c14, and the two connects as one by M12 screw a15, can rotate relative to base 11.
Continuous Circulation Drilling System Power Tong protection cover comprises the protector, the protector of turnbarrel bearing b9, the protector of travelling gear bearing c14 and protector four parts of base 11 that tighten sleeve bearing a3; Wherein: chucking sleeve bearing a3 is installed between chucking lifting disk 1 bearing support a ' 47 and the chucking sleeve 2 bearing support a18, the inner ring 16 of bearing a3 is packed into and is tightened on the bearing support a ' 47 of sleeve 1, packs into and tighten on the bearing support a18 of lifting disk 1 in the outer ring 17 of bearing a3; Turnbarrel bearing b9 is installed between turnbarrel 8 bearing support b ' 48 and the base 11 centre bore upper shaft bearing b27, the inner ring 25 of bearing b9 is packed on the bearing support b ' 48 of turnbarrel 8, packs on the base 11 centre bore upper shaft bearing b27 in the outer ring 26 of bearing b9; Travelling gear bearing c14 is installed between base 11 centre bore bottom end bearing seat c37 and the travelling gear bearing support c ' 49, the inner ring 35 of bearing c14 is packed on the travelling gear bearing support c ' 49, packs on the base 11 centre bore bottom end bearing seat c37 in the outer ring 36 of bearing c14.
Consult Fig. 1; Fig. 2 and Fig. 3; the protector of chucking sleeve bearing a3 is comprised of upper press cover 4 and lower cover 5; bearing a3 smears capacity lubrication oil; to tighten first the inner ring 16 that sleeve 2 cold charges enter bearing a3; outer ring 17 with bearing a3 is pressed on the bearing support a18 of chucking lifting disk 1 again; after ball being put into the inner ring of bearing a3; the outer ring 17 of bearing a3 is placed on the ball together with chucking lifting disk 1; then upper press cover 4 is put into chucking lifting disk 1 centre bore; its pressure-bearing surface 23 is pushed down the upper surface 19 of chucking lifting disk 1; and with screw b20 be fixed in the chucking lifting disk 1 on; prevent its rotation; the pressure-bearing surface 24 of lower cover 5 then is pressed in chucking sleeve 2 inwall lower surfaces 21; by M10 screw c22 upper press cover 4 and lower cover 5 are coupled together at last, make chucking sleeve 2; bearing a3 and chucking lifting disk 1 are connected as a single entity, and not only play the effect of protection bearing a3; and chucking sleeve 2 both can be moved up and down with chucking lifting disk 1, also can rotate relative to tightening lifting disk 1.In addition, for ease of installation and removal, lower cover 5 is by the annular that forms of circular arc piece of three 120 degree angles, and three circular arc pieces are along the circumference installation that is evenly distributed.
Consult Fig. 1; Fig. 4 and Fig. 5; the protective cover 10 of turnbarrel bearing b9 is divided into ring cover 31 and pipe wall 32 two parts; ring cover 31 is a ring plate; thickness 10mm; center-hole diameter 615mm; external diameter 750mm; its central inner hole 30 is interference fit with the turnbarrel 8 outer wall faces of cylinder 30; ring cover 31 outer circumferential edge are along connecting circular tube wall 32; pipe wall 32 face of cylinder buses are vertical with ring cover 31 planes; pipe wall thickness 10mm; height 70mm; pipe wall 32 bottoms are provided with chamfering 33 in 45 degree; the outer ring 26 that to smear first the bearing b9 of capacity sliding agent during installation is pressed on the centre hole of base upper shaft bearing b27; again turnbarrel 8 cold charges are entered in the inner ring 25 of bearing b; then by the hot charging mode; be enclosed within on the outer wall face of cylinder 30 of turnbarrel 8 from turnbarrel 8 tops protective cover 10; and make ring cover 31 lower surfaces of protective cover 10 and shoulder 29 close contacts on turnbarrel 8 outer walls carry out axial location; after protective cover 10 coolings; protective cover 10 is combined as a whole with turnbarrel 8; bearing support b27 is provided with 45 chamfering 28 structures of being outside one's consideration that cooperate with chamfering 33 in protective cover 10 pipe walls 32 bottoms; after protective cover 10 installs and fixes; protective cover 10 interior chamferings 33 are positioned at directly over the outer chamfering 28 of bearing support; keep the suitable about 1mm of end play between the two; protective cover 10 can together rotate relative to bearing support b27 with turnbarrel 8 like this; form simultaneously a bearing protection chamber; protective cover 10 does not contact with bearing support b27, and need not sealing ring.
Consult Fig. 1, Fig. 6 and Fig. 7, the protector of travelling gear bearing c14 is to implement protection by annular protective cover 13.Outer face 38 at the bearing support c37 of travelling gear 12 along the circumferential direction is evenly arranged some M10 screwed holes 39, and on protective cover 13, also arrange corresponding screw hole 40, between the outer face 38 of protective cover 13 and bearing support c37, install a sealing mat 42 additional, utilize M10 screw d41 that protective cover 13 is fixed on bearing support outer face 38; Then the outer ring 36 with travelling gear bearing c14 is pressed on the bearing support c37, after in the seal groove 44 of protective cover 13, putting into the sealing ring 43 of 663mm * 7mm, travelling gear 12 cold charges are entered the inner ring 35 of bearing c, and by screw a15 travelling gear 12 and turnbarrel 8 are connected as one.
Consult Fig. 8, according to center 400mm place some discharge orifices 45 and supporting plug 46 are set in base 11 bottoms, discharge orifice 45 screw thread specification NPT1/2 〞, plug 46 can prevent that dust from entering base intracavity 50, after dismantling plug 46, can discharge the drilling fluid that flows into base intracavity 50 by discharge orifice 45.
Claims (1)
1. a Continuous Circulation Drilling System Power Tong protection cover is characterized in that: the protector, the protector of turnbarrel bearing b (9), the protector of travelling gear bearing c (14) and protector four parts of base (11) that comprise chucking sleeve bearing a (3);
The protector of chucking sleeve bearing a (3) is comprised of upper press cover (4) and lower cover (5), chucking sleeve (2) cold charge enters the inner ring (16) of bearing a (3), the outer ring (17) of bearing a (3) is pressed on the bearing support a (18) of chucking lifting disk (1), the outer ring (17) of bearing a (3) together with chucking lifting disk (1) by ball base in the inner ring (16) of bearing a (3) with tighten on the sleeve (2), the pressure-bearing surface (23) of upper press cover (4) is pushed down the upper surface (19) of chucking lifting disk, upper press cover (4) is fixed on the chucking lifting disk (1) by screw b (20), the pressure-bearing surface (24) of lower cover (5) is pushed down chucking sleeve lining lower surface (21), upper press cover (4) and lower cover (5) utilize screw c (22) to couple together, and will tighten sleeve (2) and bearing a (3) thereof and be connected as a single entity with chucking lifting disk (1); Lower cover (5) is by the annular that forms of circular arc piece of three 120 degree angles, and three circular arc pieces are along the circumference installation that is evenly distributed;
Turnbarrel bearing b (9) utilizes protective cover (10) to protect, the protective cover (10) of turnbarrel bearing b (9) is divided into ring cover (31) and pipe wall (32) two parts, ring cover (31) is a ring plate, its center hole (34) is interference fit with the outer wall face of cylinder (30) of turnbarrel (8), ring cover (31) outer circumferential edge is along connecting circular tube wall (32), pipe wall (32) face of cylinder bus is vertical with ring cover (31) plane, pipe wall (32) bottom is provided with interior chamfering (33), protective cover (10) is enclosed within the turnbarrel outer wall face of cylinder (30), by ring cover center hole (34) and the turnbarrel outer wall face of cylinder (30) interference fit protective cover (10) and turnbarrel (8) are connected as one, utilize simultaneously the shoulder (29) of turnbarrel (8) that axial location is carried out in ring cover (31) lower surface, the bearing support b (27) of turnbarrel (8) is provided with outer chamfering (28) structure that chamfering (33) cooperates in pipe wall (32) bottom with protective cover (10), after protective cover (10) installs and fixes, chamfering (32) is positioned at directly over the outer chamfering of bearing support b (27) (28) in the protective cover, keep end play between the two, protective cover (10) together rotates relative to bearing support b (27) with turnbarrel (8), form simultaneously a bearing protection chamber, protective cover (10) does not contact with bearing support b (27);
The protector of travelling gear bearing c (14) is to implement protection by annular protective cover (13); Be provided with the screw hole (40) corresponding with outer face (38) screwed hole (39) of travelling gear bearing support c (37) on the protective cover (13), utilize screw d (41) that protective cover (13) is fixed on bearing support c outer face (38), and between the outer face (38) of protective cover (13) and bearing support c, add sealing mat (42); In addition, the upper end face relative with travelling gear (12) of protective cover (13) is processed with seal groove (44), and laid sealing ring (43);
The protector of base (11) is to be provided with drilling fluid discharge orifice (45) in base (11) bottom, is fixed with plug (46) on the drilling fluid discharge orifice (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446223 CN202900094U (en) | 2012-09-04 | 2012-09-04 | Power tongs bearing protective jacket of continuous circulation well drilling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446223 CN202900094U (en) | 2012-09-04 | 2012-09-04 | Power tongs bearing protective jacket of continuous circulation well drilling system |
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| Publication Number | Publication Date |
|---|---|
| CN202900094U true CN202900094U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220446223 Withdrawn - After Issue CN202900094U (en) | 2012-09-04 | 2012-09-04 | Power tongs bearing protective jacket of continuous circulation well drilling system |
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| CN (1) | CN202900094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852473A (en) * | 2012-09-04 | 2013-01-02 | 中国石油天然气集团公司 | Protecting housing for iron roughneck bearing of continuous circulation drilling system |
-
2012
- 2012-09-04 CN CN 201220446223 patent/CN202900094U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852473A (en) * | 2012-09-04 | 2013-01-02 | 中国石油天然气集团公司 | Protecting housing for iron roughneck bearing of continuous circulation drilling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130424 Effective date of abandoning: 20140806 |
|
| RGAV | Abandon patent right to avoid regrant |