CN210217682U - Pumping unit well head spiral wire rope sucker rod sealing device - Google Patents
Pumping unit well head spiral wire rope sucker rod sealing device Download PDFInfo
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- CN210217682U CN210217682U CN201921298150.XU CN201921298150U CN210217682U CN 210217682 U CN210217682 U CN 210217682U CN 201921298150 U CN201921298150 U CN 201921298150U CN 210217682 U CN210217682 U CN 210217682U
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Abstract
The utility model particularly relates to a beam-pumping unit well head spiral wire rope sucker rod sealing device has solved the sealed problem that has sealed effect difference, fragile and maintain time and energy consuming of current beam-pumping unit well head. The middle part of the spiral steel wire rope sucker rod is sleeved with a rotary sleeve, a sealing gasket, a spiral sealing packing block and a sleeve-shaped oil scraping ring seat are arranged between the rotary sleeve and the spiral steel wire rope sucker rod, oil scraping rings are arranged in the sleeve-shaped oil scraping ring seats, sealing glands are arranged at the axial outer ends of the two sets of the cylindrical oil scraping ring seats, and bolts are screwed on the sealing glands; an oil storage box is arranged above the sleeve-shaped flange, a sleeve-shaped connecting seat is arranged between the sleeve-shaped flange and the oil storage box, and a thrust bearing, a bearing and an oil seal are arranged in the sleeve-shaped connecting seat. The utility model discloses when having reduced manufacturing cost, reduced operator's intensity of labour, hardness configuration is reasonable moreover, has realized preventing eccentric wear function, has prolonged life.
Description
Technical Field
The utility model relates to an oil has pole oil recovery sealing device specifically is a beam-pumping unit well head spiral wire rope sucker rod sealing device.
Background
In the current oil extraction technology, well head sealing is always the focus of much attention and is one of the difficult problems that are difficult to solve in each oil field. The existing pumping unit well head uses a steel wire rope sucker rod, and the steel wire rope sucker rod is changed into a polished rod shape for sealing through nylon or resin wrapping.
When the pumping unit pumps oil from top to bottom, the steel wire rope sucker rod wrapping material and the wellhead are always kept in a friction state, the friction clearance can cause the leakage of the sealing core material and the loss of the steel wire rope sucker rod wrapping material, the service life of the sealing core material is shortened, the frequency of adding the sealing core material is increased, the steel wire rope sucker rod wrapping material is damaged at the same time, and the production and working efficiency are seriously influenced.
In addition, the sealing core material moves up and down along with the up-and-down reciprocating motion of the sucker rod, the sealing core material is often required to be pressurized manually, the labor intensity of operators is increased, if the sealing core material is not maintained timely, the sealing of the sucker rod by the sealing core material is affected, the phenomenon of liquid leakage caused by unbalanced pressure often occurs, and the production efficiency is greatly affected.
Disclosure of Invention
The utility model discloses a solve the sealed problem that has sealed effect poor, fragile and maintain waste time and energy of current beam-pumping unit well head, provide a beam-pumping unit well head spiral wire rope sucker rod sealing device.
The utility model discloses an adopt following technical scheme to realize: a sealing device for the spiral steel cable sucker rod of pumping well head is composed of a spiral steel cable sucker rod and a sleeve-shaped flange sleeved on its lower end and linked to well head, a rotary sleeve sleeved on the middle part of said spiral steel cable sucker rod, the internal radial wall of said rotary sleeve and having the internal annular convex blocks, the external radial wall of said rotary sleeve and having the external annular convex blocks, the sealing pads between said rotary sleeve and spiral steel cable sucker rod, the spiral sealing filler blocks close to the external axial end of said sealing pads, and the sleeve-shaped oil scraping ring seats close to the external axial end of said sealing filler blocks, and several oil scraping rings matched with spiral grooves of spiral steel cable sucker rod and vertically distributed in said oil scraping ring seats, the axial outer end of the annular connecting disc is provided with a sealing gland which is sleeved on the spiral steel wire rope sucker rod, and a bolt which penetrates through the annular connecting disc and is in threaded connection with the rotating sleeve is screwed on the sealing gland; the sleeve form flange top is provided with, the oil storage box that the terminal surface all opened the round mouth down, the oil storage box upper end is provided with the shield, be provided with the sleeve form connecting seat of being connected with both between sleeve form flange and the oil storage box, sleeve form connecting seat inner wall middle part is provided with annular groove, all be provided with the thrust bearing who hugs closely with both between annular groove terminal surface and the cyclic annular evagination piece terminal surface rather than corresponding, two thrust bearing's the outside all is provided with bearing and the oil blanket that is located between sleeve form connecting seat and the swivel housing.
When the oil pumping operation is carried out, and the spiral steel wire rope sucker rod is stretched upwards, the spiral steel wire rope sucker rod enables the oil scraper ring at the bottom to do rotary motion, so that oil carried in the spiral groove of the spiral steel wire rope sucker rod is scraped, and then the oil carried in the spiral groove of the spiral steel wire rope sucker rod is further scraped through the rotation of the spiral sealing packing block at the bottom, so that the first oil scraping is completed; the spiral sealing filler block at the top is driven to rotate along with the continuous lifting of the spiral steel wire rope sucker rod, a small amount of oil carried in the spiral groove of the spiral steel wire rope sucker rod is scraped, then the oil scraper ring at the top does rotary motion, and the small amount of oil carried in the spiral groove of the spiral steel wire rope sucker rod is further scraped, so that secondary oil scraping is completed; a small amount of oil scraped for the second time falls into a cavity defined by the two sealing gaskets and the rotating sleeve, when the spiral steel wire rope sucker rod moves downwards, a gap is generated inside the spiral steel wire rope sucker rod after the tensile force of the spiral steel wire rope sucker rod is removed, and a small amount of oil in the cavity defined by the two sealing gaskets and the rotating sleeve seeps into the gap in the spiral steel wire rope sucker rod and is brought into a well mouth under the action of the spiral steel wire rope sucker rod; when the spiral steel wire rope sucker rod is stretched upwards or moved downwards, the oil scraper ring and the spiral sealing filler block rotate to drive the sleeve-shaped oil scraper ring seat and the rotary sleeve to rotate, the circumferential direction of the rotary sleeve is sealed and supported through the oil seal and the bearing, the axial direction of the rotary sleeve is supported through the thrust bearing, and the spiral motion is decomposed into rotary motion and linear motion; the oil storage box and the dust cover are arranged to inspect the sealing effect and whether the adjustment is needed; the problems that the sealing effect is poor, the sealing effect is easy to damage, and the maintenance is time-consuming and labor-consuming in the existing pumping unit well head sealing are solved.
The axial outer ends of the two annular connecting discs are provided with a sleeve-shaped rotating body, a partition plate integrated with the sleeve-shaped rotating body is arranged in the sleeve-shaped rotating body, a sleeve-shaped oil scraping ring seat I is arranged in the axial outer portion of the sleeve-shaped rotating body, a spiral sealing filler block I tightly attached to the sleeve-shaped oil scraping ring seat I and the partition plate is arranged between the sleeve-shaped oil scraping ring seat I and the partition plate, a plurality of oil scraping rings I which are matched with spiral grooves of a spiral steel wire rope sucker rod and vertically distributed are arranged in the sleeve-shaped oil scraping ring seat I, the axial outer ends of the two sets of cylindrical oil scraping ring seats I are provided with annular connecting discs I integrated with the annular connecting discs I and radially and outwards extending along the edges of the annular connecting.
When the oil pumping operation is carried out, the spiral steel wire rope sucker rod stretches upwards, the spiral steel wire rope sucker rod enables the oil scraper ring I at the bottom to do rotary motion, oil carried in the spiral groove of the spiral steel wire rope sucker rod is scraped, then the spiral sealing filler block I at the bottom rotates, the oil carried in the spiral groove of the spiral steel wire rope sucker rod is further scraped, and the first oil scraping is carried out after the oil scraping operation is finished; with the continuous lifting of the spiral steel wire rope sucker rod, after the secondary oil scraping is finished, the spiral sealing filler block I at the top is driven to rotate, a small amount of oil carried in the spiral groove of the spiral steel wire rope sucker rod is scraped, then the oil scraper ring I at the top does rotating motion, and a small amount of oil carried in the spiral groove of the spiral steel wire rope sucker rod is further scraped, so that the oil scraping is finished; the oil scraped from the head and the tail twice falls into the axial inner cavities of the two sets of tubular rotating bodies, when the spiral steel wire rope sucker rod moves downwards, a gap is generated in the spiral steel wire rope sucker rod after the tensile force of the spiral steel wire rope sucker rod is removed, and the oil in the cavity seeps into the gap in the spiral steel wire rope sucker rod and is brought into a well mouth under the action of the spiral steel wire rope sucker rod; the sealing effect is further improved.
The axial inner end of the sleeve-shaped rotating body is provided with an annular outer protruding block I integrated with the sleeve-shaped rotating body, the axial outer end of the annular outer protruding block I is provided with an annular pressure plate limiting the outer end and the side wall of the annular outer protruding block I, and a bolt II penetrating through the annular connecting plate and connected with the rotating sleeve through threads is screwed on the annular pressure plate.
The arrangement of the annular pressure plate and the annular outer convex block I realizes the limit of the sleeve-shaped rotating body in the circumferential direction and avoids the eccentric wear; meanwhile, when the upper and lower screw pitches of the spiral steel wire rope sucker rod are asynchronous, compensation is realized through finely adjusting the positions of the annular pressure plate and the annular outer convex block I in the circumferential direction, and the abrasion phenomenon is effectively avoided.
The utility model has reasonable and reliable structural design, reduces the operation frequency and the loss caused by misoperation, reduces the production cost, reduces the labor intensity of operators, and improves the working efficiency of the operators and the production efficiency of equipment; and the hardness is reasonably configured, the eccentric wear prevention function is realized, the service life is prolonged, the loss caused by shutdown is reduced, the production efficiency and the economic benefit of enterprises are improved, and the oil pumping unit with the ultra-long flexible sucker rod is easy to popularize and use on a large scale.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is another schematic structural diagram of the present invention.
In the figure: 1-spiral steel wire rope sucker rod, 2-sleeve-shaped flange, 3-rotating sleeve, 4-annular inner convex block, 5-annular outer convex block, 6-sealing gasket, 7-spiral sealing filler block, 8-sleeve-shaped oil scraping ring seat, 9-oil scraping ring, 10-annular connecting disc, 11-sealing gland, 12-bolt, 13-oil storage box, 14-dust cap, 15-sleeve-shaped connecting seat, 16-thrust bearing, 17-bearing, 18-oil seal, 19-sleeve-shaped rotating body, 20-clapboard, 21-sleeve-shaped oil scraping ring seat I, 22-spiral sealing filler block I, 23-oil scraping ring I, 24-annular connecting disc I, 25-bolt I, 26-annular outer convex block I, 27-annular pressure plate, 28-bolt II.
Detailed Description
The utility model provides a beam-pumping unit well head spiral wire rope sucker rod sealing device, includes spiral wire rope sucker rod 1 and cover under it and with the cover sleeve form flange 2 of well head hookup:
a rotary sleeve 3 is sleeved at the middle part of a spiral steel wire rope sucker rod 1, an annular inner convex block 4 integrated with the rotary sleeve 3 is arranged on the radial inner side wall of the middle part of the rotary sleeve 3, an annular outer convex block 5 integrated with the rotary sleeve 3 is arranged on the radial outer side wall of the middle part of the rotary sleeve 3, sealing gaskets 6 tightly attached to the upper end surface and the lower end surface of the annular inner convex block 4, spiral sealing packing blocks 7 tightly attached to the axial outer end surfaces of the two sealing gaskets 6 and a sleeve-shaped oil scraping ring seat 8 tightly attached to the axial outer end surfaces of the two spiral sealing packing blocks 7 are arranged between the rotary sleeve 3 and the spiral steel wire rope sucker rod 1, a plurality of oil scraping rings 9 which are matched with the spiral grooves of the spiral steel wire rope sucker rod 1 and are vertically distributed are arranged in the sleeve-shaped oil scraping ring seat 8, annular connecting discs 10 which are integrated with the two sets of the cylindrical oil scraping ring seats 8 and, a bolt 12 which penetrates through the annular connecting disc 10 and is in threaded connection with the rotating sleeve 3 is screwed on the sealing gland 11;
the upper portion of sleeve form flange 2 is provided with, the lower terminal surface all opens the oil storage box 13 that has the round mouth, oil storage box 13 upper end is provided with shield 14, be provided with sleeve form connecting seat 15 of being connected with both between sleeve form flange 2 and the oil storage box 13, sleeve form connecting seat 15 inner wall middle part is provided with annular groove, all be provided with the thrust bearing 16 of hugging closely with both between annular groove terminal surface and the cyclic annular evagination piece 5 terminal surfaces rather than corresponding, the outside of two thrust bearing 16 all is provided with bearing 17 and the oil blanket 18 that is located between sleeve form connecting seat 15 and the swivel mount 3.
The axial outer ends of the two annular connecting discs 10 are respectively provided with a sleeve-shaped rotating body 19, a partition plate 20 integrated with the sleeve-shaped rotating body is arranged in the sleeve-shaped rotating body 19, sleeve-shaped oil scraping ring seats I21 are arranged in the axial outer portion of the sleeve-shaped rotating body 19, spiral sealing filler blocks I22 tightly attached to the sleeve-shaped oil scraping ring seats I21 and the partition plate 20 are arranged between the sleeve-shaped oil scraping ring seats I21 and the partition plate 20, a plurality of oil scraping rings I23 matched with the spiral grooves of the spiral steel wire rope sucker rod 1 and vertically distributed are arranged in the sleeve-shaped oil scraping ring seats I21, the axial outer ends of the two sets of cylindrical oil scraping ring seats I23 are respectively provided with an annular connecting disc I24 which is integrated with the annular connecting disc I24 and radially and outwards extends along the edge of the.
The axial inner ends of the sleeve-shaped rotating bodies 19 are respectively provided with an annular outer protruding block I26 integrated with the sleeve-shaped rotating bodies, the axial outer ends of the annular outer protruding blocks I26 are respectively provided with an annular pressure plate 27 for limiting the outer ends and the side walls of the annular outer protruding blocks, and bolts II28 penetrating through the annular connecting disc 10 and connected with the rotating sleeve 3 in a threaded mode are screwed on the annular pressure plates 27.
In the specific implementation process, the spiral sealing filler block 7 and the spiral sealing filler block I22 are both made of pure cotton fabric; the sleeve-shaped oil scraping ring seat 8, the sleeve-shaped oil scraping ring seat I21, the oil scraping ring 9 and the oil scraping ring I23 are the first linear seal compared with the piston ring seal of an engine; the oil seal 18 and the bearing 17 are used for sealing and supporting rotary motion; the thrust bearing 16, the sleeve-shaped connecting seat 15, the sealing gasket 6, the spiral sealing packing block 7 and the sealing gland 11 are used for second and third linear sealing, and the annular pressure plate 27 and the sleeve-shaped rotating body 19 are used for fourth linear sealing.
Claims (3)
1. The utility model provides a beam-pumping unit well head spiral wire rope sucker rod sealing device, includes spiral wire rope sucker rod (1) and cover under it and with cover sleeve form flange (2) of well head hookup, its characterized in that:
a rotary sleeve (3) is sleeved at the middle part of a spiral steel wire rope sucker rod (1), an annular inner convex block (4) integrated with the rotary sleeve (3) is arranged on the radial inner side wall of the middle part of the rotary sleeve (3), an annular outer convex block (5) integrated with the rotary sleeve is arranged on the radial outer side wall of the middle part of the rotary sleeve (3), sealing gaskets (6) tightly attached to the upper end face and the lower end face of the annular inner convex block (4), spiral sealing filler blocks (7) tightly attached to the axial outer end faces of the two sealing gaskets (6) and a sleeve-shaped oil scraping ring seat (8) tightly attached to the axial outer end face of the two spiral sealing filler blocks (7) are arranged between the rotary sleeve (3) and the spiral steel wire rope sucker rod (1), a plurality of oil scraping rings (9) which are matched with spiral grooves of the spiral steel wire rope sucker rod (1) and are vertically distributed are arranged in the sleeve-shaped oil scraping ring seat (8), annular connecting discs (10, the axial outer end of the annular connecting disc (10) is provided with a sealing gland (11) sleeved on the spiral steel wire rope sucker rod (1), and a bolt (12) penetrating through the annular connecting disc (10) and in threaded connection with the rotating sleeve (3) is screwed on the sealing gland (11);
an oil storage box (13) with round openings at the upper end surface and the lower end surface is arranged above the sleeve-shaped flange (2), a dustproof cover (14) is arranged at the upper end of the oil storage box (13), a sleeve-shaped connecting seat (15) connected with the sleeve-shaped flange (2) and the oil storage box (13) is arranged between the sleeve-shaped flange and the oil storage box, an annular groove is arranged in the middle of the inner wall of the sleeve-shaped connecting seat (15), a thrust bearing (16) tightly attached to the annular groove is arranged between the end surface of the annular groove and the end surface of the annular outer protruding block (5) corresponding to the annular groove, and a bearing (17) and an oil seal (18) which are positioned between the sleeve-shaped connecting seat (15) and the rotating.
2. The sealing device for the spiral steel wire rope sucker rod of the wellhead of the pumping unit according to claim 1, is characterized in that: the axial outer ends of the two annular connecting discs (10) are respectively provided with a sleeve-shaped rotating body (19), a partition plate (20) integrated with the sleeve-shaped rotating body is arranged in the sleeve-shaped rotating body (19), sleeve-shaped oil scraping ring seats I (21) are arranged in the axial outer portion of the sleeve-shaped rotating body (19), spiral sealing filler blocks I (22) tightly attached to the sleeve-shaped oil scraping ring seats I (21) and the partition plate (20) are arranged between the sleeve-shaped oil scraping ring seats I (21) and the partition plate, a plurality of oil scraping rings I (23) which are matched with spiral grooves of the spiral steel wire rope sucker rod (1) and are vertically distributed are arranged in the sleeve-shaped oil scraping ring seats I (21), the axial outer ends of the two sleeve-shaped oil scraping ring seats I (21) are respectively provided with an annular connecting disc I (24) which is integrated with the sleeve-shaped rotating body and radially and outwards extends along the edge of the annular connecting.
3. The sealing device for the spiral steel wire rope sucker rod of the wellhead of the pumping unit according to claim 2, is characterized in that: the axial inner end of the sleeve-shaped rotating body (19) is provided with an annular outer protruding block I (26) which is integrated with the sleeve-shaped rotating body, the axial outer end of the annular outer protruding block I (26) is provided with an annular pressure plate (27) which limits the outer end and the side wall of the annular outer protruding block I, and a bolt II (28) which penetrates through the annular connection plate (10) and is in threaded connection with the rotating sleeve (3) is screwed on the annular pressure plate (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921298150.XU CN210217682U (en) | 2019-08-12 | 2019-08-12 | Pumping unit well head spiral wire rope sucker rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921298150.XU CN210217682U (en) | 2019-08-12 | 2019-08-12 | Pumping unit well head spiral wire rope sucker rod sealing device |
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| Publication Number | Publication Date |
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| CN210217682U true CN210217682U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921298150.XU Active CN210217682U (en) | 2019-08-12 | 2019-08-12 | Pumping unit well head spiral wire rope sucker rod sealing device |
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| CN (1) | CN210217682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284850A (en) * | 2019-08-12 | 2019-09-27 | 山西省平遥减速器有限责任公司 | A kind of oil pumping machine well head spiral wire rope polish rod sealing device |
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2019
- 2019-08-12 CN CN201921298150.XU patent/CN210217682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284850A (en) * | 2019-08-12 | 2019-09-27 | 山西省平遥减速器有限责任公司 | A kind of oil pumping machine well head spiral wire rope polish rod sealing device |
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