CN204851149U - Oil well head polish rod lubricating device - Google Patents
Oil well head polish rod lubricating device Download PDFInfo
- Publication number
- CN204851149U CN204851149U CN201520517868.9U CN201520517868U CN204851149U CN 204851149 U CN204851149 U CN 204851149U CN 201520517868 U CN201520517868 U CN 201520517868U CN 204851149 U CN204851149 U CN 204851149U
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- oil
- packing
- well
- packing box
- chamber
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- 239000003129 oil well Substances 0.000 title claims abstract description 75
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 43
- 238000012856 packing Methods 0.000 claims abstract description 165
- 239000010705 motor oil Substances 0.000 claims abstract description 46
- 239000003921 oil Substances 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 239000010721 machine oil Substances 0.000 claims description 102
- 210000004907 gland Anatomy 0.000 claims description 15
- 230000011218 segmentation Effects 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 210000001138 tear Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- -1 finally Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model provides an oil well wellhead polished rod lubricating arrangement, it includes: the packing box that cavity and axial link up, the polished rod can move along the axial of packing box run through the packing box, and the intracavity that link up at the packing box communicates in proper order from top to bottom and is equipped with: the engine oil sealing chamber is internally provided with an engine oil sealing packing which is hermetically coated on the outer wall of the polished rod, and the engine oil sealing packing is limited in the engine oil sealing chamber through limiting pieces positioned at two ends of the engine oil sealing chamber; an oil chamber for containing oil; the packing chamber is used for accommodating a wellhead sealing packing, and the lower part of the packing chamber is connected above the wellhead of the oil well; at least one oil injection channel communicated to the engine oil chamber is formed in the upper end face of the packing box along the side wall of the packing box, and the oil injection channel is not communicated with the engine oil sealing chamber. The utility model provides an oil well head polished rod lubricating arrangement can long-term lubrication polished rod to improved the sealed packing life of well head, reduced staff intensity of labour, guaranteed the clean innocent production of oil well head.
Description
Technical field
The utility model relates to technical field of petroleum extraction, particularly a kind of well mouth of oil well polish rod lubricating device.
Background technology
At present, well station administration requires that realizing oil pumping machine well head cleans hamlessizing technology, and the oil pumping unit well head sealer that prior art uses uses 8 ~ 9 " O " type single-stage packings usually, the sealing of toric space between oil pipe and sucker rod is realized by packing gland compacting packing, but in viscous crude and super-viscous oil wellhead sealing process, the impact by following principal element:
1, viscosity of crude excessive (under standard conditions, viscosity is between 8000mPas ~ 220000mPas), makes polished rod and packing frictional force increase, causes sealing effectiveness to be deteriorated;
2, go out seriously to make packing to dry grind between oil well to lose efficacy;
3, sand production, water outlet (containing macro-corrosion material in water), corrosion wellhead polish rod and packing, packing_seal short term failure;
Existing oil pumping unit well head sealer is caused to there is following problem:
1, use single-stage packing_seal, sealing effectiveness is poor, easily runs oil after wearing and tearing;
2, lubricate by produced liquid in oil well between packing and polished rod, lubricant effect is poor, and packing easily weares and teares;
3, viscosity of thickened oil is large, needs underground mixing light oil to reduce viscosity, prevents packing from running oil, and run oil for preventing, every mouthful of oil well need increase by 2 ~ 5 side's thin oils simultaneously, increases oil mining cost;
4, unlubricated dose of storage area, polished rod cannot lubricate for a long time, packing dry grinding when to go out.
Utility model content
The purpose of this utility model is to provide a kind of well mouth of oil well polish rod lubricating device that can lubricate polished rod for a long time, to solve because the friction between polished rod and well head sealing packing causes packing to wear and tear, cause the problem of wellhead sealing weak effect, thus ensure that the clean hamlessizing technology of well mouth of oil well, improve well head sealing packing application life simultaneously, reduce intensity of workers, rate when improve oil well production.
For achieving the above object, the utility model provides a kind of well mouth of oil well polish rod lubricating device, it comprises: hollow and axially through packing box, polished rod runs through described packing box along the axis of described packing box is mobile, from top to bottom be communicated with successively in the through chamber of described packing box and be provided with: machine oil closed chamber, in described machine oil closed chamber, be provided with sealed packet be overlying on machine oil sealed packing on described polished rod outer wall, described machine oil sealed packing is limited in described machine oil closed chamber by the locating part being positioned at described machine oil closed chamber two ends; For being installed in the engine oil chamber of machine oil; For being installed in the packing room of well head sealing packing, its underpart is connected to above described well mouth of oil well; Offer along its sidewall the oiling passage that at least one is communicated to described engine oil chamber by the upper surface of described packing box, and described oiling passage is not communicated with mutually with described machine oil closed chamber.
Well mouth of oil well polish rod lubricating device as above, wherein, described locating part comprises: the annular block reinforcement being arranged on described machine oil closed chamber and described engine oil chamber connection, and one end of described machine oil sealed packing is connected in described annular block reinforcement; Be arranged on described machine oil closed chamber upper end and the gland that can move along its axis, described polished rod is mobile runs through described gland, and the other end of described machine oil sealed packing is limited in described machine oil closed chamber by described gland.
Well mouth of oil well polish rod lubricating device as above, wherein, the upper surface of described packing box is provided with annular recess, and the entrance of described oiling passage is arranged on the bottom surface of described annular recess.
Well mouth of oil well polish rod lubricating device as above, wherein, described oiling passage has many, and many described oiling passages are evenly arranged along the circumference of described packing box.
Well mouth of oil well polish rod lubricating device as above, wherein, described well mouth of oil well polish rod lubricating device also comprises: end cap, it is rotatably connected in the upper end of described packing box, described polished rod is mobile runs through described end cap, described end cap corresponds to described oiling passage place and offers oiling through hole, and on described end cap, be arranged with two outward extending assister bars vertically.
Well mouth of oil well polish rod lubricating device as above, wherein, the upper surface of described end cap is provided with annular oil storage tank, and described oil filler point is arranged on the bottom surface of described annular oil storage tank.
Well mouth of oil well polish rod lubricating device as above, wherein, the upper/lower terminal of described packing box all opens wide and is up-narrow and down-wide expanding shape, described machine oil closed chamber is formed at the top of described packing box, the segmentation ring of radially convex is provided with in the lower inner surface of described packing box, by described segmentation ring, the segmentation of the lower space of described packing box is formed the described engine oil chamber of top and the described packing room of below, the endoporus of described segmentation ring allows described polished rod to pass.
Well mouth of oil well polish rod lubricating device as above, wherein, the bottom of described packing room is connected to above described well mouth of oil well by tubing thread.
Well mouth of oil well polish rod lubricating device as above, wherein, offers leakage fluid dram in the side wall lower ends of described engine oil chamber.
Well mouth of oil well polish rod lubricating device as above, wherein, described packing box adopts No. 45 steel to make.
Compared with prior art, advantage of the present utility model is as follows:
The well mouth of oil well polish rod lubricating device that the utility model provides, be applicable to most of oil pumper sucker rod pumping, by setting gradually the machine oil closed chamber be connected in packing box from top to bottom, for being installed in the engine oil chamber of machine oil and the packing room for being installed in well head sealing packing, make polished rod can by the lubrication be installed in engine oil chamber inner engine oil while movement, thus solve because the friction between polished rod and well head sealing packing causes packing to wear and tear, cause the problem of wellhead sealing weak effect, and the replacing construction of well head sealing packing was changed 1 time (each about 1 hour ~ 1.5 hours operating time changed) by 3 days ~ 11 days, be reduced to 40 days ~ 50 days and change 1 time, namely well head sealing packing application life is extended, and then reduce staff and change the labour intensity of packing and change the cost of packing, and rate when improve oil well production, and the machine oil sealed packing be installed in machine oil closed chamber can scrape along with the movement of polished rod will be attached to machine oil on polished rod, avoid well head and run oily problem, both reduced clean-up cost use, in turn ensure that the clean hamlessizing technology of well mouth of oil well, in addition, engine oil chamber, between machine oil closed chamber and packing room, ensure that engine oil chamber does not bear oil well borehole pressure, thus ensure that the safety in use of well mouth of oil well polish rod lubricating device, the setting of oiling passage, makes oiling execute-in-place simple, only needs can complete in the minicomputer oil can short time to dose maintenance, the packing box security performance adopting No. 45 steel modifier treatment to make is good, and shock resistance is strong, can successfully manage the impact of touching to packing box in the process such as pump, merit figure test.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the structural representation of the well mouth of oil well polish rod lubricating device provided according to the utility model one embodiment;
Fig. 2 be in the well mouth of oil well polish rod lubricating device shown in Fig. 1 packing box partly cut open structural representation;
Fig. 3 is the left TV structure schematic diagram of the packing box shown in Fig. 2;
Fig. 4 is the sectional structure schematic diagram of end cap in the well mouth of oil well polish rod lubricating device shown in Fig. 1;
Fig. 5 be in the well mouth of oil well polish rod lubricating device shown in Fig. 1 gland partly cut open structure for amplifying schematic diagram.
Drawing reference numeral illustrates:
1-packing box; 11-machine oil closed chamber; 12-engine oil chamber; 13-packing room; 14-oiling passage; 15-annular recess; 16-splits ring; 17-leakage fluid dram; 2-machine oil sealed packing; 3-locating part; 31-annular block reinforcement; 32-gland; 4-end cap; 41-oiling through hole; 42-assister bar; 43-annular oil storage tank.
Detailed description of the invention
In order to have clearer understanding to the technical solution of the utility model, object and effect, existing accompanying drawings detailed description of the invention of the present utility model.
As shown in Figure 1, the well mouth of oil well polish rod lubricating device that the utility model provides comprises: hollow and axially through packing box 1, polished rod (not shown) runs through packing box 1 along the axis of packing box 1 is mobile, as shown in Figure 2, the machine oil closed chamber 11 be connected is provided with from top to bottom successively in the through chamber of packing box 1, for being installed in the engine oil chamber 12 of machine oil and the packing room 13 for being installed in well head sealing packing, the bottom of packing room 13 is connected to above well mouth of oil well, wherein, being housed in well head sealing packing in packing room 13 can effective sealing well mouth of oil well, the engine oil chamber 12 being installed in organic oil can lubricate polished rod for a long time with the movement of polished rod, thus solve because the friction between polished rod and well head sealing packing causes packing to wear and tear, cause the problem of wellhead sealing weak effect, and the replacing construction of well head sealing packing was changed 1 time (each about 1 hour ~ 1.5 hours operating time changed) by 3 days ~ 11 days, be reduced to 40 days ~ 50 days and change 1 time, namely well head sealing packing application life is extended, and then reduce staff and change the labour intensity of packing and change the cost of packing, rate when improve oil well production, in order to avoid the machine oil in engine oil chamber 12 pollutes well head with mobile outflow of polished rod, in machine oil closed chamber 11, be provided with sealed packet be overlying on machine oil sealed packing 2 on polished rod outer wall, machine oil sealed packing 2 is limited in machine oil closed chamber 11 by the locating part 3 being positioned at machine oil closed chamber 11 two ends, namely by machine oil sealed packing 2, engine oil chamber 12 is sealed, and machine oil sealed packing 2 can scrape along with the movement of polished rod will be attached to machine oil on polished rod, thus avoid well head and run oily problem, both reduce clean-up cost use, in turn ensure that the clean hamlessizing technology of well mouth of oil well, in addition, because engine oil chamber 12 is between machine oil closed chamber 11 and packing room 13, for the ease of injecting machine oil in engine oil chamber 12, offer along its sidewall the oiling passage 14 that at least one is communicated to engine oil chamber 12 by the upper surface of packing box 1, and oiling passage 14 is not communicated with mutually with machine oil closed chamber 11, like this, both the injection of machine oil had been facilitated, in turn ensure that the sealing effectiveness of machine oil sealed packing 2, in addition, engine oil chamber 12 is between machine oil closed chamber 11 and packing room 13, ensure that engine oil chamber 12 does not bear oil well borehole pressure, thus the well mouth of oil well polish rod lubricating device safety in use that ensure that.
Particularly, packing box 1 adopts No. 45 steel to make, as shown in Figure 2, the upper/lower terminal of packing box 1 opens wide and is up-narrow and down-wide expanding shape, the forming machine oil seal room, top 11 of packing box 1, the segmentation ring 16 of radially convex is provided with in the lower inner surface of packing box 1, by segmentation ring 16, the segmentation of the lower space of packing box 1 is formed the engine oil chamber 12 of top and the packing room 13 of below, the endoporus of segmentation ring 16 allows polished rod to pass, and the bottom of packing room 13 is connected to above well mouth of oil well by tubing thread.Packing box 1 security performance adopting No. 45 steel modifier treatment to make is good, shock resistance is strong, the impact of touching to packing box 1 in the process such as pump, merit figure test can be successfully managed, packing box 1 is in up-small and down-big expanding shape, and in forming machine oil seal room, top 11, namely the radial dimension of machine oil closed chamber 11 is less than the radial dimension of engine oil chamber 12, makes offering of oiling passage 14 simple and convenient, thus makes filling engine oil operation in engine oil chamber 12 become simple and convenient.
Further, because oiling passage 14 is what open wide, rainwater is easily via oiling passage 14 ingress engine grease chamber 12, again because the density of rainwater is greater than the density of machine oil, rainwater can be placed in engine oil chamber 12 bottom, for the ease of rainwater is discharged, as shown in Figure 2, leakage fluid dram 17 is offered in engine oil chamber 12 side wall lower ends, leakage fluid dram 17 is in normally off, in needs descaling machine grease chamber 12 during rainwater, leakage fluid dram 17 can be opened by staff, by leakage fluid dram 17, rainwater is discharged, in addition, when needs dismounting well mouth of oil well polish rod lubricating device, also by leakage fluid dram 17 machine oil in engine oil chamber 12 discharged and reclaim.
As a preferred embodiment of the present utility model, as Fig. 1, shown in Fig. 2 and Fig. 5, locating part 3 comprises: the annular block reinforcement 31 being arranged on machine oil closed chamber 11 and engine oil chamber 12 connection, and be arranged on machine oil closed chamber 11 upper end and the gland 32 that can move along its axis, polished rod is mobile runs through gland 32, one end of machine oil sealed packing 2 is connected in annular block reinforcement 31, the other end of machine oil sealed packing 2 is limited in machine oil closed chamber 11 by gland 32, namely the degree of freedom of machine oil sealed packing 2 with polished rod movement is limited by annular block reinforcement 31 with gland 32, thus machine oil sealed packing 2 can be scraped along with the movement of polished rod will be attached to machine oil on polished rod, avoid oil pollution well head, ensure that the clean hamlessizing technology of well mouth of oil well.
Certainly, locating part 3 can be two snap rings being arranged on machine oil closed chamber 11 two ends, and machine oil sealed packing 2 is connected between two snap rings; Locating part 3 also can be the two groups of spacing preiections being arranged on machine oil closed chamber 11 two ends; often organize spacing preiection and at least comprise two symmetrically arranged salient points to convex; machine oil sealed packing 2 is connected between two groups of spacing preiections; or other structures; do not repeat them here; if but meet any existing structure of machine oil sealed packing 2 being limited to machine oil closed chamber 11 or it is simply replaced, all should within protection domain of the present utility model.
Alternatively, during in order to avoid injecting machine oil in oiling passage 14, the situation that machine oil pollutes well head by oiling passage 14 internal diameter size restriction spilling packing box 1 occurs, as shown in Figure 2, the upper surface of packing box 1 arranges annular recess 15, and the entrance of oiling passage 14 is arranged on the bottom surface of annular recess 15, like this, when injecting machine oil to oiling passage 14, the machine oil overflowed by the restriction of oiling passage 14 internal diameter size can first be placed in annular recess 15, slowly flow into again in oiling passage 14, thus ensure that the clean hamlessizing technology of well mouth of oil well, in addition, the setting of annular recess 15, make the operation of on-the-spot oiling machine oil more simple and convenient, only need can complete dosing of machine oil in the minicomputer oil can short time.
Further, as shown in Figure 3, oiling passage 14 has many, and many oiling passages 14 are evenly arranged along the circumference of packing box 1, make the machine oil be placed in annular recess 15 can flow into many oiling passages 14 equably, thus improve the operating efficiency of oiling in engine oil chamber 12.
Further again, as shown in Figure 1 and Figure 4, well mouth of oil well polish rod lubricating device also comprises: end cap 4, it is rotatably connected in the upper end of packing box 1, polished rod is mobile runs through end cap 4, end cap 4 corresponds to oiling passage 14 place and offers oiling through hole 41, and on end cap 4, be arranged with two outward extending assister bars 42 vertically, specifically, internal thread is provided with in the inside of end cap 4, external screw thread is provided with in the sidewall outside, upper end of packing box 1, coordinated with externally threaded by internal thread, end cap 4 is rotatably connected in the upper end of packing box 1, the setting of end cap 4, on the one hand, limit the degree of freedom of gland 32 to the outside movement of machine oil closed chamber 11, ensure that the sealing effectiveness of machine oil sealed packing 2, thus ensure that the clean hamlessizing technology of well mouth of oil well, on the other hand, after end cap 4 and packing box 1 screw, packing box 1 rotation can be driven to be tightened in above well mouth of oil well by rotating assister bar 42, thus make the connection between packing box 1 and well mouth of oil well simple and convenient.
Alternatively, due to the end cap 4 that spun in the upper end of packing box 1, same, during in order to avoid injecting machine oil in oil filler point, the situation that machine oil pollutes well head by oil filler point size restrictions spilling end cap 4 occurs, as shown in Figure 4, annular oil storage tank 43 is provided with at the upper surface of end cap 4, and oil filler point is arranged on the bottom surface of annular oil storage tank 43, like this, when injecting machine oil to oil filler point, the machine oil overflowed by oil filler point size restrictions can first be placed in annular oil storage tank 43, slowly flow into oil filler point again, thus ensure that the clean hamlessizing technology of well mouth of oil well, now, the annular recess 15 be arranged on the upper surface of packing box 1 can play guide effect to the machine oil injected from oil filler point, with the upper surface avoiding machine oil to be detained packing box 1, cause machine oil to waste and block the situation generation of oiling passage 14, thus ensure that the smoothness of oiling in well mouth of oil well polish rod lubricating device.
Connection with figures illustrates the installation process of the well mouth of oil well polish rod lubricating device that the utility model provides below:
As shown in Figure 1, during installation, first well head sealing packing is positioned in packing room 13, and make polished rod run through well head sealing packing and packing box 1 successively, again bottom, packing room 13 is rotatably connected in above well mouth of oil well, then machine oil sealed packing 2 sealed packet is overlying on the outside of polished rod, and make machine oil sealed packing 2 be positioned in machine oil closed chamber 11, afterwards polished rod is passed gland 32, and machine oil sealed packing 2 is limited in machine oil closed chamber 11 by the upper end of gland 32 insertion machine oil seal room 11, subsequently polished rod run through end cap 4 and end cap 4 be rotatably connected in the upper end of packing box 1, now, by the assister bar 42 on rotary end cover 4, end cap 4 is tightened in the upper end of packing box 1, after end cap 4 screws, bottom, packing room 13 is tightened in above well mouth of oil well by the assister bar 42 be rotated further on end cap 4, make well head sealing packing compacted, to complete the sealing of well head sealing packing to well mouth of oil well, finally, machine oil is injected in annular oil storage tank 43, machine oil first flow in the annular recess 15 be located on packing box 1 upper surface by the oil filler point being opened in annular oil storage tank 43 bottom surface, oiling passage 14 is entered again by the entrance of the oiling passage 14 being arranged at annular recess 15 bottom surface, finally by oiling passage 14 ingress engine grease chamber 12, so far, complete the installation of well mouth of oil well polish rod lubricating device.
In sum, the well mouth of oil well polish rod lubricating device that the utility model provides, by setting gradually the machine oil closed chamber be connected in packing box from top to bottom, for being installed in the engine oil chamber of machine oil and the packing room for being installed in well head sealing packing, make polished rod can by the lubrication be installed in engine oil chamber inner engine oil while movement, thus solve because the friction between polished rod and well head sealing packing causes packing to wear and tear, cause the problem of wellhead sealing weak effect, and the replacing construction of well head sealing packing was changed 1 time (each about 1 hour ~ 1.5 hours operating time changed) by 3 days ~ 11 days, be reduced to 40 days ~ 50 days and change 1 time, namely well head sealing packing application life is extended, and then reduce staff and change the labour intensity of packing and change the cost of packing, and rate when improve oil well production, and the machine oil sealed packing be installed in machine oil closed chamber can scrape along with the movement of polished rod will be attached to machine oil on polished rod, avoid well head and run oily problem, both reduced clean-up cost use, in turn ensure that the clean hamlessizing technology of well mouth of oil well, in addition, engine oil chamber, between machine oil closed chamber and packing room, ensure that engine oil chamber does not bear oil well borehole pressure, thus ensure that the safety in use of well mouth of oil well polish rod lubricating device, the setting of oiling passage, makes oiling execute-in-place simple, only needs can complete in the minicomputer oil can short time to dose maintenance, the packing box security performance adopting No. 45 steel modifier treatment to make is good, and shock resistance is strong, can successfully manage the impact of touching to packing box in the process such as pump, merit figure test.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those of ordinary skill in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (10)
1. a well mouth of oil well polish rod lubricating device, comprising: hollow and axially through packing box, and polished rod runs through described packing box along the axis of described packing box is mobile, it is characterized in that, is from top to bottom communicated with successively and is provided with in the through chamber of described packing box:
Machine oil closed chamber, in described machine oil closed chamber, be provided with sealed packet be overlying on machine oil sealed packing on described polished rod outer wall, described machine oil sealed packing is limited in described machine oil closed chamber by the locating part being positioned at described machine oil closed chamber two ends;
For being installed in the engine oil chamber of machine oil;
For being installed in the packing room of well head sealing packing, its underpart is connected to above described well mouth of oil well;
Offer along its sidewall the oiling passage that at least one is communicated to described engine oil chamber by the upper surface of described packing box, and described oiling passage is not communicated with mutually with described machine oil closed chamber.
2. well mouth of oil well polish rod lubricating device according to claim 1, is characterized in that,
Described locating part comprises:
Be arranged on the annular block reinforcement of described machine oil closed chamber and described engine oil chamber connection, one end of described machine oil sealed packing is connected in described annular block reinforcement;
Be arranged on described machine oil closed chamber upper end and the gland that can move along its axis, described polished rod is mobile runs through described gland, and the other end of described machine oil sealed packing is limited in described machine oil closed chamber by described gland.
3. well mouth of oil well polish rod lubricating device according to claim 1, is characterized in that,
The upper surface of described packing box is provided with annular recess, and the entrance of described oiling passage is arranged on the bottom surface of described annular recess.
4. well mouth of oil well polish rod lubricating device according to claim 3, is characterized in that,
Described oiling passage has many, and many described oiling passages are evenly arranged along the circumference of described packing box.
5. well mouth of oil well polish rod lubricating device according to claim 1, is characterized in that,
Described well mouth of oil well polish rod lubricating device also comprises: end cap, it is rotatably connected in the upper end of described packing box, described polished rod is mobile runs through described end cap, described end cap corresponds to described oiling passage place and offers oiling through hole, and on described end cap, be arranged with two outward extending assister bars vertically.
6. well mouth of oil well polish rod lubricating device according to claim 5, is characterized in that,
The upper surface of described end cap is provided with annular oil storage tank, and described oil filler point is arranged on the bottom surface of described annular oil storage tank.
7. well mouth of oil well polish rod lubricating device according to any one of claim 1 to 6, is characterized in that,
The upper/lower terminal of described packing box all opens wide and is up-narrow and down-wide expanding shape, described machine oil closed chamber is formed at the top of described packing box, the segmentation ring of radially convex is provided with in the lower inner surface of described packing box, by described segmentation ring, the segmentation of the lower space of described packing box is formed the described engine oil chamber of top and the described packing room of below, the endoporus of described segmentation ring allows described polished rod to pass.
8. well mouth of oil well polish rod lubricating device according to claim 7, is characterized in that,
The bottom of described packing room is connected to above described well mouth of oil well by tubing thread.
9. well mouth of oil well polish rod lubricating device according to any one of claim 1 to 6, is characterized in that,
Leakage fluid dram is offered in the side wall lower ends of described engine oil chamber.
10. well mouth of oil well polish rod lubricating device according to any one of claim 1 to 6, is characterized in that,
Described packing box adopts No. 45 steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520517868.9U CN204851149U (en) | 2015-07-16 | 2015-07-16 | Oil well head polish rod lubricating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520517868.9U CN204851149U (en) | 2015-07-16 | 2015-07-16 | Oil well head polish rod lubricating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851149U true CN204851149U (en) | 2015-12-09 |
Family
ID=54741707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520517868.9U Withdrawn - After Issue CN204851149U (en) | 2015-07-16 | 2015-07-16 | Oil well head polish rod lubricating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089539A (en) * | 2015-07-16 | 2015-11-25 | 中国石油天然气股份有限公司 | Oil well head polish rod lubricating device |
-
2015
- 2015-07-16 CN CN201520517868.9U patent/CN204851149U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089539A (en) * | 2015-07-16 | 2015-11-25 | 中国石油天然气股份有限公司 | Oil well head polish rod lubricating device |
| CN105089539B (en) * | 2015-07-16 | 2019-02-15 | 中国石油天然气股份有限公司 | Oil well head polish rod lubricating device |
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