CN108266152A - A kind of anti-bias wear packing box - Google Patents
A kind of anti-bias wear packing box Download PDFInfo
- Publication number
- CN108266152A CN108266152A CN201611255227.6A CN201611255227A CN108266152A CN 108266152 A CN108266152 A CN 108266152A CN 201611255227 A CN201611255227 A CN 201611255227A CN 108266152 A CN108266152 A CN 108266152A
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- China
- Prior art keywords
- packing box
- box body
- packing
- eccentric bushing
- eccentric
- Prior art date
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Links
- 238000012856 packing Methods 0.000 title claims abstract description 259
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 210000004907 gland Anatomy 0.000 claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 238000003860 storage Methods 0.000 claims description 14
- 239000004519 grease Substances 0.000 claims description 5
- 210000002445 nipple Anatomy 0.000 claims description 5
- 238000003032 molecular docking Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 235000014121 butter Nutrition 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of anti-bias wear packing box, belong to oilfield machinery field.The packing box includes packing box body, is sleeved on the packing box pressing cap of packing box body upper end and is arranged on for compressing the gland of packing upper end in packing box body, and packing box further includes regulating part, double eccentric sleeves.Wherein, regulating part can be up or down arranged in packing box body, and upper end offsets with packing lower end；Double eccentric sleeves, upper end and the lower end of packing box body are rotatably connected, and lower end and the upper end of well head connector are rotatably connected.The packing box can overlap by adjusting the axis for the axis and polished rod for making packing box, and to prevent packing box and polished rod eccentric wear, and sealing effect is good, is conveniently replaceable packing, can be used in large-scale promotion.
Description
Technical field
The present invention relates to oilfield machinery field, more particularly to a kind of anti-bias wear packing box.
Background technology
Packing box is a kind of sealing device of oil-extractor polish-rod, is inside filled with the packing for passing through polished rod, with sealing
Annular space between oil pipe and polished rod.But with oil field produce progress, many oil wells by geologic(al) factor, installation factor,
Pipeline, which such as biases at the influences, causes well mouth of oil well to glance off, and causes polished rod and packing box decentraction, packing and polished rod is made unidirectionally to grind
Damage is serious, be easy to cause the leakage of well head thorn, runs oil, pollution environment, while can also cause security risk because of the leakage of oil gas.For gram
Packing and polished rod must often be replaced by taking the generation of these problems, time-consuming and laborious, increase the cost of oilfield exploitation operation.Therefore
It is necessary to provide a kind of adjustable packing boxs of axis, are overlapped with the axis with polished rod, and then packing box and polished rod is reduced or avoided
Unidirectional eccentric wear.
The prior art provides a kind of automatic deflection adjusting formula wellhead packing box, including packing box and is sleeved on packing box
The pressure cap at end is arranged on inside packing box to compress the gland of packing, is arranged on the tuningout seat of packing box lower end, tuningout box set
On tuningout seat, the lower part of tuningout box is connected with wellhead tee joint.Wherein, packing is provided in packing box, sealing shroud is mounted in light
On bar, the lower end of tuningout seat and packing offsets, and is sleeved on polished rod.When polished rod shifts, make tuningout seat pushing away in polished rod
It correspondingly shifts under power, the thrust of polished rod and the offset of tuningout seat drives packing box whole and moves, make with the direction of thrust
Polished rod is concentric with packing box, so that eccentric wear does not occur for packing and polished rod.
Inventor has found that the prior art has at least the following problems：
The automatic deflection adjusting formula wellhead packing box that the prior art provides, after polished rod glances off, although the axis of packing box
It can again be overlapped with the axis of packing box, but part eccentric wear occurs for the packing in packing box, it is impossible to ensure that packing can be with dynamic sealing
Polished rod, and it is inconvenient to replace packing.
Invention content
Technical problem to be solved of the embodiment of the present invention is, provide it is a kind of can adjust make the axis of packing box with
The axis of polished rod overlaps, and can compress packing again, and replaces packing easily anti-bias wear packing box.Specific technical solution is such as
Under：
An embodiment of the present invention provides a kind of anti-bias wear packing box, including packing box body, are sleeved on the packing box sheet
It the packing box pressing cap of body upper end and is arranged in the packing box body to compress the gland of packing upper end, the packing
Box further includes regulating part, can be arranged on up or down in the packing box body, and upper end offsets with the packing lower end；
Double eccentric sleeves, upper end and the lower end of the packing box body are rotatably connected, and lower end and the upper end of well head connector rotatably connect
It connects.
Specifically, preferably, the double eccentric sleeves include the upper eccentric bushing for being from top to bottom sequentially connected with and being connected, connection
Set, lower eccentric bushing；The axis of the axis of the upper eccentric bushing and the lower eccentric bushing is located at the two of the connector sleeve axis respectively
Side；The lower end of the upper eccentric bushing and the packing box body is rotatably connected；The lower eccentric bushing and the well head connector
Upper end be rotatably connected.
Specifically, preferably, the upper eccentric bushing is connected through a screw thread mode is sleeved on outside packing box body lower end；
The lower eccentric bushing is connected through a screw thread mode and is set in inside the well head connector upper end.
Specifically, preferably, being provided with a circle upper inner ring shape step, the packing box sheet on the upper eccentric bushing inner wall
Outer ring step on a circle is provided on the lower end outer wall of body；The upper eccentric bushing is rotatably mounted around the packing box body
Outside lower end, and the packing box body bottom wall offsets with the upper inner ring shape step, the upper eccentric bushing roof with it is described
Upper outer ring step offsets；Outer ring step under a circle is provided on the outer wall of the lower eccentric bushing, on the well head connector
A circle lower inner ring shape step is provided on the inner wall of end；The lower eccentric bushing is rotatably sleeved in the well head connector upper end
Portion, and the roof of the well head connector offsets with the lower outer ring step, the bottom wall of the lower eccentric bushing with it is described under
Annular step offsets.
Specifically, preferably, the packing box body bottom end is peripherally disposed steel ring slot on a circle first；Institute
It states and a circle first lower steel ring slot opposite with steel ring slot on described first is provided on the end face of upper inner ring shape step upper end；It is described
Steel ring slot forms first annular space after being docked with the first lower steel ring slot on first；The bottom wall of the lower eccentric bushing is circumferentially
Direction is provided with steel ring slot on a circle second；It is provided on a circle and described second on the end face of the lower inner ring shape step upper end
The second opposite lower steel ring slot of steel ring slot；The second annular is formed after steel ring slot is docked with the second lower steel ring slot on described second
Space；A steel ring is respectively arranged in the first annular space and second annular space.
Specifically, preferably, the packing box further includes eccentric pressure cap and lower eccentric pressure cap；The upper eccentric pressure cap
Thread set is on described on eccentric bushing and the outer wall of the packing box body junction, and the head cover of the upper eccentric pressure cap
It offsets with the upper outer ring step；The lower eccentric pressure cap thread set connects in the lower eccentric bushing and the well head connector
It connects on the outer wall at place, and the head cover of the lower eccentric pressure cap offsets with the lower outer ring step.
Specifically, preferably, the regulating part includes adjustment barrel and gear part；The adjustment barrel is axially displaceably set
It puts in the packing box body interior, and upper end offsets with the packing；The side wall of the adjustment barrel is from top to bottom provided with
One row teeth；The gear part includes gear shaft, the gear for penetrating rotatably the gear shaft；The packing box body and institute
It states and is set on the opposite side wall of teeth there are one gear grooved, the gear shaft is fixed in the gear grooved, the gear and institute
Teeth are stated to be meshed；When the gear rotates in the gear grooved, the adjustment barrel is driven to move up and down.
Specifically, it is described preferably, the packing box pressing cap inner cavity is provided with the oil storage tank above the gland
The grease nipple be connected with the oil storage tank is provided on the side wall of packing box pressing cap.
Specifically, preferably, the packing box further includes the annular being arranged in the head cover of the packing box pressing cap scrapes
Oily device；The annular oil wiper is located at the top of the oil storage tank, and middle part inner cavity is used to pass through with making polished rod dynamic sealing.
Specifically, preferably, the annular oil wiper is packing；The packing box, which further includes, is arranged on the packing box
Oil wiper gland in the head cover of pressure cap, for the oil wiper to be pressed in the packing box pressing cap.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
Anti-bias wear packing box provided in an embodiment of the present invention, by setting pair being rotatably connected with packing box body lower end
Eccentric bushing, and the lower end of double eccentric sleeves is made to be rotatably connected with the upper end of well head connector, it can be achieved that adjusting packing box in rotation
When ontology and double eccentric sleeves, the upper end of packing box body double eccentric sleeves or the axis relative position of lower end is made to change, so that
The axis of packing box body and the axis of polished rod overlap, to prevent packing and polished rod from eccentric wear occurs.It, can be real by setting regulating part
The intrinsic packing of packing box is compressed after levelling packing box now, so that the annular gap between packing_seal and polished rod,
During replacing packing, convenient for packing is squeezed out.As it can be seen that anti-bias wear packing box provided in an embodiment of the present invention can pass through tune
The axis of the whole axis for making packing box and polished rod overlaps, and to prevent packing box and polished rod eccentric wear, and sealing effect is good, is conveniently replaceable
Packing, can large-scale promotion use.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the sectional view of anti-bias wear packing box provided in an embodiment of the present invention；
Fig. 2 is the sectional view of double eccentric sleeves provided in an embodiment of the present invention.
Wherein, reference numeral represents respectively：
1 packing box body,
2 packing box pressing caps,
3 packings,
4 glands,
5 regulating parts,
501 adjustment barrels,
502 gear parts,
6 double eccentric sleeves,
Eccentric bushing on 601,
602 connector sleeves,
603 times eccentric bushings,
7 well head connectors,
Eccentric pressure cap on 8,
9 times eccentric pressure caps,
10 oil storage tanks,
11 grease nipples,
12 oil wipers,
13 oil wiper glands.
Specific embodiment
Unless otherwise defined, all technical terms used in the embodiment of the present invention are respectively provided with usual with those skilled in the art
The identical meaning understood.To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to this hair
Bright embodiment is described in further detail.
An embodiment of the present invention provides a kind of anti-bias wear packing box, as shown in Figure 1, including packing box body 1, are sleeved on
The packing box pressing cap 2 of 1 upper end of packing box body and be arranged in packing box body 1 for compress the gland 4 of 3 upper end of packing,
Regulating part 5, double eccentric sleeves 6.Wherein, regulating part 5 can be up or down arranged in packing box body 1, and upper end and packing 3
Lower end offsets；6 upper end of double eccentric sleeves and the lower end of packing box body 1 are rotatably connected, and the upper end of lower end and well head connector 7 can
Rotation connection.
The operation principle of anti-bias wear packing box provided in an embodiment of the present invention is given below and is described：
With the reciprocal operation of polished rod, polished rod glances off, and to squeeze the packing 3 in packing box body 1, sends out packing 3
Raw eccentric wear, in order to avoid polished rod and the eccentric wear of packing 3, an embodiment of the present invention provides a kind of anti-bias wear packing box, pass through rotation
Adjustment packing box body 1 or rotary sleeve solve above-mentioned technical problem mounted in the double eccentric sleeves 6 of 1 lower end of packing box body.Its
In, the packing box body 1 of the packing box is sleeved on polished rod, and 1 upper end of packing box body is set with packing box pressing cap 2, packing box
The gland 4 being sleeved on polished rod and for compressing 3 upper end of packing is provided in ontology 1, is rotatably connected with 1 lower end of packing box body
6 lower end of double eccentric sleeves connect is rotatably connected with 7 upper end of well head connector.When polished rod glances off, due in double eccentric sleeves 6
End is set for the eccentric with 1 lower end of packing box body, only rotation adjustment packing box body 1, can make packing box body 1 and double eccentric sleeves
The axis relative position of 6 upper ends changes, until the axis of packing box body 1 is made to be overlapped with the axis of polished rod, to prevent disk
Root 3 and polished rod eccentric wear.It is only double partially by rotating adjustment since 6 lower end of double eccentric sleeves and 7 upper end of well head connector are set for the eccentric
The lower end of heart set 6, can make 6 lower end of double eccentric sleeves and the axis relative position of well head connector 7 change, and packing box body
1 does not relatively rotate with double eccentric sleeves 6, therefore packing box body 1 and the axis relative position of well head connector 7 become
Change, until the axis of packing box body 1 is made to be overlapped with the axis of polished rod, to prevent packing 3 and polished rod eccentric wear.By rotating simultaneously
Packing box body 1 and double eccentric sleeves 6 are adjusted, the axis of 6 upper end of packing box body 1 and double eccentric sleeves can also be changed with respect to position
It puts or the axis relative position of packing box body 1 and 7 upper end of well head connector, so that the axis and polished rod of packing box body 1
Axis overlap, and then prevent packing 3 and polished rod eccentric wear.It, can be by adjusting in packing box sheet behind the position of levelling packing box
Regulating part 5 moving up and down in body 1, is offseted with the lower end with packing 3 and compresses packing 3, the ring between sealing and polished rod
Packing 3 when replacing packing 3, can be popped up by adjusting regulating part 5, then packing 3 replaced by shape gap.
Based on above-mentioned it is found that anti-bias wear packing box provided in an embodiment of the present invention, passes through setting and 1 lower end of packing box body
The double eccentric sleeves 6 being rotatably connected, and the lower end of double eccentric sleeves 6 and the upper end of well head connector 7 is made to be rotatably connected, it can be achieved that
In rotation adjustment packing box body 1 and double eccentric sleeves 6, make the upper end of packing box body 1 and double eccentric sleeves 6 or the axis of lower end
Relative position changes, so that the axis of the axis of packing box body 1 and polished rod overlaps, to prevent packing 3 and polished rod from occurring
Eccentric wear.By setting regulating part 5, it can be achieved that compressing the packing 3 in packing box body 1 after packing box is aligned, so that packing 3
Annular gap between sealing and polished rod, during packing 3 is replaced, convenient for packing 3 is squeezed out.As it can be seen that the present invention is real
Apply example offer anti-bias wear packing box can be overlapped by adjusting the axis for the axis and polished rod for making packing box, with prevent packing box with
Polished rod eccentric wear, and sealing effect is good, is conveniently replaceable packing, it can large-scale promotion use.
Specifically, in embodiments of the present invention, as shown in attached drawing 1 and attached drawing 2, double eccentric sleeves 6 are included from top to bottom sequentially
Upper eccentric bushing 601, connector sleeve 602, the lower eccentric bushing 603 for connecting and being connected；The axis of upper eccentric bushing 601 and lower eccentric bushing 603
Axis respectively be located at 602 axis of connector sleeve both sides；The lower end of upper eccentric bushing 601 and packing box body 1 is rotatably connected；Under
Eccentric bushing 603 and the upper end of well head connector 7 are rotatably connected.The structure of double eccentric sleeves 6 is arranged such, is easy to implement and is rotating
When adjusting packing box body 1 and double eccentric sleeves 6, the axis of packing box body 1 is made to be overlapped with the axis of polished rod, also, made partially
The axis of heart set 601 and the axis of lower eccentric bushing 603 are located at the both sides of 602 axis of connector sleeve respectively, it can be ensured that double eccentric sleeves 6
Realize larger offset distance.
Wherein, eccentric bushing 601 is rotatably connected with packing box body 1 in realization and lower eccentric bushing 603 is connect with well head
There are many embodiments that body 7 is rotatably connected, for example：
As the first embodiment, upper eccentric bushing 601 is connected through a screw thread mode and is sleeved on outside 1 lower end of packing box body
Portion；Lower eccentric bushing 603 is connected through a screw thread mode and is set in inside 7 upper end of well head connector.The mode of threaded connection is easily set
It puts, is easy to implement and is rotatably connected.
As second of embodiment：A circle upper inner ring shape step, packing box body are provided on upper 601 inner wall of eccentric bushing
Outer ring step on a circle is provided on 1 lower end outer wall；Upper eccentric bushing 601 is rotatably mounted around 1 lower end of packing box body
Outside, and 1 bottom wall of packing box body offsets with upper inner ring shape step, and upper 601 roof of eccentric bushing offsets with upper outer ring step；
Outer ring step under a circle is provided on the outer wall of lower eccentric bushing 603, is provided under a circle on 7 upper end inner wall of well head connector interior
Ring-shaped step；Lower eccentric bushing 603 is rotatably sleeved on inside 7 upper end of well head connector, and the roof of well head connector 7 with
Lower outer ring step offsets, and bottom wall and the lower inner ring shape step of lower eccentric bushing 603 offset.Pass through upper outer ring step, upper inner ring
Shape step, lower outer ring step, lower inner ring shape step are matched and are acted on and can play position-limiting action, with ensure it is in situ carry out it is above-mentioned
Rotatable process (only implementing rotation, do not generate displacement in the axial direction).Under this kind of embodiment, it can pass through
Setting pulley and the round sliding slot that is adapted with pulley realize it is above-mentioned be rotatably connected, alternatively, by the way that circular ring shape is set to slide
Rail and the circular ring shape sliding slot that is adapted with the ring-shaped sliding rail realize it is above-mentioned be rotatably connected and etc..
For example, 1 bottom end of packing box body is peripherally disposed steel ring slot on a circle first；Upper inner ring shape step
The a circle first lower steel ring slot opposite with steel ring slot on first is provided on the end face of upper end；Steel ring slot and first time steel on first
First annular space is formed after ring recess docking；The bottom wall of lower eccentric bushing 603 is peripherally disposed steel ring slot on a circle second；
The a circle second lower steel ring slot opposite with steel ring slot on second is provided on the end face of lower inner ring shape step upper end；Steel ring on second
Slot forms the second annular space after being docked with the second lower steel ring slot；It is respectively arranged in first annular space and the second annular space
One steel ring.Such setting can ensure close between packing box body 1 and double eccentric sleeves 6, double eccentric sleeves 6 and well head connector 7
Feng Xing, while preferably realize and carried out between packing box body 1 and double eccentric sleeves 6, double eccentric sleeves 6 and well head connector 7
360 ° of rotation.Wherein, the section of steel ring is in cylindrical type, convenient for the rolling of corresponding steel ring slot.
Further, in order to be fixed after rotation double eccentric sleeves 6 or packing box body 1 to suitable position, with
Ensure that follow-up oil pumping operation is smoothed out, as shown in Figure 1, packing box provided in an embodiment of the present invention further includes packing box and also wraps
Include eccentric pressure cap 8 and lower eccentric pressure cap 9；Upper bias 8 thread set of pressure cap is connected in upper eccentric bushing 601 and packing box body 1
On the outer wall at place, and the head cover of upper eccentric pressure cap 8 offsets with upper outer ring step；Lower bias 9 thread set of pressure cap is lower inclined
On heart set 603 and the outer wall of 7 junction of well head connector, and the head cover of lower eccentric pressure cap 9 offsets with lower outer ring step.If
Eccentric pressure cap 8 and lower eccentric pressure cap 9 are put convenient for packing box body 1 is made to connect with double eccentric sleeves 6 and double eccentric sleeves 6 with well head
Junctor 7 is set with connection securely.When needing to rotate adjustment packing box body 1 or double eccentric sleeves 6, need corresponding positions first
Either lower eccentric pressure cap 9 unclamps then rotation packing box body 1 or double eccentric sleeves 6 to suitable position to the upper eccentric pressure cap 8 at the place of putting
It puts.
It is understood that when implementing the first embodiment, eccentric pressure cap 8 and lower eccentric pressure can be equally set
Cap 9, and can achieve the effect that identical.
In order to ensure between the upper outer ring step of packing box body 1 and the upper eccentric bushing 601 of double eccentric sleeves 6 and it is double partially
It is sealed between the lower eccentric bushing 603 of heart set 6 and the lower inner ring shape step of well head connector 7, it can be by setting multiple O-ring seals
To seal corresponding annular gap.
In embodiments of the present invention, since the lower end of upper eccentric bushing 601 and packing box body 1 is rotatably connected, therefore packing
The wall thickness of the lower end of box body 1 is matched with the upper inner ring shape step of upper eccentric bushing 601, i.e. 1 lower end of packing box body is set as
Gradual change type wall thickness.Meanwhile the lower inner ring shape step of well head connector 7 is eccentric ring-shaped step, the wall thickness of lower eccentric bushing 603 is set
For gradual change type wall thickness, to be matched with lower inner ring shape step.
In embodiments of the present invention, using face the anti-bias wear packing box operating personnel left and right directions as "left", "right",
Using the front-rear direction of the anti-bias wear packing box as "front", "rear".602 axis of connector sleeve is deviateed with the upper eccentric bushing 601 of double eccentric sleeves 6
For the side wall of line farther out on right side, lower eccentric bushing 603 deviates the side wall of 602 axis of connector sleeve farther out for left side：
When polished rod deviates to the left, need to adjust anti-bias wear packing box provided in an embodiment of the present invention to the left, so that polished rod
Axis overlapped with the axis of the anti-bias wear packing box.The lower end of packing box body 1 is adjusted by rotation, so that packing box body
With offseting at the inner wall of the upper eccentric bushing 601 apart from 602 axis of connector sleeve farther out at 1 lower end wall thickness, so that packing box body 1
Axis deviates to the left, and then the axis of packing box body 1 is made to be overlapped with the axis of polished rod.
When polished rod deviates to the right, need to adjust anti-bias wear packing box provided in an embodiment of the present invention to the right, so that polished rod
Axis overlapped with the axis of anti-bias wear packing box.The lower eccentric bushing 603 of double eccentric sleeves 6 is adjusted by rotation, so that lower bias
With offseting at the inner wall of the lower inner ring shape step apart from 7 axis of well head connector farther out at the wall thickness of set 603, so that double eccentric sleeves
6 axis deviates to the right, the packing box body 1 being set in upper eccentric bushing 601 to be driven to deviate to the right, and then make packing box sheet
The axis of body 1 is overlapped with the axis of polished rod.
When polished rod deviates forward or backward, by rotating adjustment packing box body 1 and double eccentric sleeves 6 simultaneously, so that disk
The axis of root box body 1 and the axis of polished rod overlap.
Specifically, as shown in Figure 1, in embodiments of the present invention, regulating part 5 includes adjustment barrel 501 and gear part 502；
Adjustment barrel 501 is axially displaceably arranged on inside packing box body 1, and upper end offsets with packing 3, the side of adjustment barrel 501
Wall is from top to bottom provided with a row teeth；Gear part 502 includes gear shaft, the gear for penetrating rotatably gear shaft；Packing box
Gear grooved, gear shaft are fixed in gear grooved there are one settings on the side wall opposite with teeth of ontology 1, and gear is mutually nibbled with teeth
It closes；When gear rotates in gear grooved, adjustment barrel 501 is driven to move up and down.By rotating gear part 502, gear can be made
Teeth thrust is given, adjustment barrel 501 to be pushed to move upwards extruding packing 3 or is moved downward.For example, when in packing box
Packing 3 when fluffing, can by adjusting gear part 502, so that adjustment barrel 501 compresses packing 3, make the sealing of packing 3 and polished rod it
Between annular gap., can be by adjusting gear part 502 when replacing packing 3, to squeeze out packing 3, this makes the behaviour of replacement packing 3
Facilitate.By the way that regulating part 5 is defined as above so that the compression operation of packing 3 is more convenient, safety and controllability are strong.
For the ease of rotating gear part 502, which further includes is detachably connected with the gear shaft of gear part 502
Handle, by swing handle so that gear part 502 rotates.Wherein, handle and the axis of gear part 502 can be to be threadedly coupled
Or clamping, it,, can will be after adjustment by handle and the middle axis connection of gear part 502 when needing to adjust gear part 502
Hand is disassembled from gear part 502.It should be noted that the installation of handle does not influence gear normal rotation in tooth socket.
Specifically, in embodiments of the present invention, as shown in Figure 1,2 inner cavity of packing box pressing cap is provided on gland 4
The oil storage tank 10 of side is provided with the grease nipple 11 be connected with oil storage tank 10 on the side wall of packing box pressing cap 2.Grease nipple 11 is set just
In the injection butter in oil storage tank 10, make pumping unit when moving back and forth, polished rod passes through oil storage tank 10 and moves reciprocatingly, oil storage
Butter in slot 10 is coated on polished rod, to reduce the friction between polished rod and packing 3, extends the service life of packing 3.Its
In, oil storage tank 10 is the reaming stepped hole of 2 inner cavity of packing box pressing cap setting, i.e. the diameter of oil storage tank 10 is more than packing box pressing cap 2
The diameter in other holes in inner cavity, in order to store butter.
Specifically, annular oil wiper 12 can be packing, can play the role of the gap between frizing and sealing and polished rod.
As shown in Figure 1, for the ease of annular oil wiper 12 is fixed in the head cover of packing box pressing cap 2, the embodiment of the present invention provides
Packing box further include the oil wiper gland 13 being arranged in the head cover of packing box pressing cap 2, for oil wiper 12 to be pressed on disk
In root box pressing cap 2.Wherein, the major diameter stepped hole and path platform for being provided through polished rod on 2 roof of packing box pressing cap and being connected
Rank hole, the lower end and the upper end of path stepped hole of annular oil wiper 12 offset, and oil wiper gland 13 compresses annular oil wiper 12, and
It offsets with the lower end of major diameter stepped hole, major diameter stepped hole and path stepped hole is set to be convenient for annular oil wiper 12 and oil wiper gland
13 position in packing box pressing cap 2 is fixed.The internal diameter of oil wiper gland 13 is smaller than the internal diameter of annular oil wiper 12, with polished rod
It is adapted.
Wherein, oil wiper gland 13 is fixed on there are many modes on 2 roof of packing box pressing cap, for example, as one
Kind embodiment：Oil wiper gland 13 is connect with the roof of packing box pressing cap 2 by housing pin, oil wiper gland 13 and disk
Multiple vertical screw holes are both provided on the roof of root box pressing cap 2, vertical screw hole is respectively penetrated by multiple housing pins, will scrape
Oily device gland 13 is fixed on packing box pressing cap 2.Such mode is set conveniently, convenient for oil wiper gland 13 and packing box pressing cap 2
Dismounting.
As another embodiment, internal thread, oil wiper pressure are provided on the wall of the major diameter stepped hole of packing box pressing cap 2
The external screw thread being adapted with the internal thread of major diameter stepped hole is provided on the side wall of lid 13, oil wiper gland 13 is connected through a screw thread
Mode is set in the major diameter stepped hole of packing box pressing cap 2.The upper surface of oil wiper gland 13 needs to be threaded counterbore at this time,
In order to dismount oil wiper gland 13.
The foregoing is merely presently preferred embodiments of the present invention, the protection domain being not intended to limit the invention, all in this hair
Within bright spirit and principle, any modification, equivalent replacement, improvement and so on should be included in protection scope of the present invention
Within.
Claims (10)
1. a kind of anti-bias wear packing box, including packing box body (1), it is sleeved on the packing box of packing box body (1) upper end
It pressure cap (2) and is arranged in the packing box body (1) to compress the gland (4) of packing (3) upper end, which is characterized in that
The packing box further includes regulating part (5), can be arranged on up or down in the packing box body (1), and upper end and institute
Packing (3) lower end is stated to offset；
Double eccentric sleeves (6), upper end and the lower end of the packing box body (1) are rotatably connected, lower end and well head connector (7)
Upper end is rotatably connected.
2. packing box according to claim 1, which is characterized in that the double eccentric sleeves (6) are including from top to bottom sequentially connecting
Upper eccentric bushing (601), connector sleeve (602), the lower eccentric bushing (603) for connecing and being connected；
The axis of the upper eccentric bushing (601) and the axis of the lower eccentric bushing (603) are located at the connector sleeve (602) axis respectively
The both sides of line；
The lower end of the upper eccentric bushing (601) and the packing box body (1) is rotatably connected；
The upper end of the lower eccentric bushing (603) and the well head connector (7) is rotatably connected.
3. packing box according to claim 2, which is characterized in that the upper eccentric bushing (601) is connected through a screw thread mode
It is sleeved on outside packing box body (1) lower end；
Lower eccentric bushing (603) mode of being connected through a screw thread is set in inside well head connector (7) upper end.
4. packing box according to claim 2, which is characterized in that be provided with a circle on upper eccentric bushing (601) inner wall
Upper inner ring shape step is provided with outer ring step on a circle on the lower end outer wall of the packing box body (1)；
The upper eccentric bushing (601) is rotatably mounted around outside packing box body (1) lower end, and the packing box sheet
Body (1) bottom wall offsets with the upper inner ring shape step, and upper eccentric bushing (601) roof offsets with the upper outer ring step；
Outer ring step under a circle, well head connector (7) upper end inner wall are provided on the outer wall of the lower eccentric bushing (603)
On be provided with a circle lower inner ring shape step；
The lower eccentric bushing (603) is rotatably sleeved on inside well head connector (7) upper end, and the well head connects
The roof of body (7) offsets with the lower outer ring step, bottom wall and the lower inner ring shape step phase of the lower eccentric bushing (603)
It supports.
5. packing box according to claim 4, which is characterized in that packing box body (1) bottom end is along the circumferential direction set
It is equipped with steel ring slot on a circle first；Steel ring slot on a circle and described first is provided on the end face of the upper inner ring shape step upper end
The first opposite lower steel ring slot；Steel ring slot forms first annular space after being docked with the first lower steel ring slot on described first；
The bottom wall of the lower eccentric bushing (603) is peripherally disposed steel ring slot on a circle second；The lower inner ring shape step
The a circle second lower steel ring slot opposite with steel ring slot on described second is provided on the end face of upper end；On described second steel ring slot with
The second annular space is formed after the second lower steel ring slot docking；
A steel ring is respectively arranged in the first annular space and second annular space.
6. packing box according to claim 5, which is characterized in that the packing box further include eccentric pressure cap (8) and under
Eccentric pressure cap (9)；
Described eccentric pressure cap (8) thread set on described eccentric bushing (601) and the packing box body (1) junction outside
On wall, and the head cover of the upper eccentric pressure cap (8) offsets with the upper outer ring step；
Lower eccentric pressure cap (9) thread set the lower eccentric bushing (603) and the well head connector (7) junction outside
On wall, and the head cover of the lower eccentric pressure cap (9) offsets with the lower outer ring step.
7. packing box according to claim 1, which is characterized in that the regulating part (5) includes adjustment barrel (501) and gear
Portion (502)；
The adjustment barrel (501) is axially displaceably arranged on packing box body (1) inside, and upper end and the packing
(3) it offsets；
The side wall of the adjustment barrel (501) is from top to bottom provided with a row teeth；
The gear part (502) including gear shaft, penetrate rotatably the gear of the gear shaft；
Gear grooved, the gear shaft to be fixed on there are one settings on the packing box body (1) side wall opposite with the teeth
In the gear grooved, the gear is meshed with the teeth；
When the gear rotates in the gear grooved, the adjustment barrel (501) is driven to move up and down.
8. packing box according to claim 1, which is characterized in that packing box pressing cap (2) inner cavity is provided with positioned at institute
The oil storage tank (10) above gland (4) is stated, is provided on the side wall of the packing box pressing cap (2) and is connected with the oil storage tank (10)
Grease nipple (11).
9. packing box according to claim 8, which is characterized in that the packing box, which further includes, is arranged on the packing box pressure
Annular oil wiper (12) in the head cover of cap (2)；
The annular oil wiper (12) is positioned at the top of the oil storage tank (10), and middle part inner cavity is for making polished rod dynamic sealing
It passes through.
10. packing box according to claim 8, which is characterized in that the annular oil wiper (12) is packing；
The packing box further includes the oil wiper gland (13) being arranged in the head cover of the packing box pressing cap (2), for by institute
Oil wiper (12) is stated to be pressed in the packing box pressing cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255227.6A CN108266152B (en) | 2016-12-30 | Anti-eccentric packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255227.6A CN108266152B (en) | 2016-12-30 | Anti-eccentric packing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108266152A true CN108266152A (en) | 2018-07-10 |
| CN108266152B CN108266152B (en) | 2024-05-28 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914798A (en) * | 2020-07-08 | 2022-01-11 | 中国石油天然气股份有限公司 | Device for drilling fluid circulation system |
| CN114622895A (en) * | 2020-12-11 | 2022-06-14 | 中国石油化工股份有限公司 | Pumping unit polished rod eccentric wear alarm trigger device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034022Y (en) * | 2007-05-28 | 2008-03-12 | 青绍江 | Eccentric-wear preventive eccentric adaptor of pumping rod |
| CN101158277A (en) * | 2007-11-09 | 2008-04-09 | 张建国 | Multifunctional polish rod sealing device |
| CN201133229Y (en) * | 2007-12-14 | 2008-10-15 | 季惠军 | Combination type packing kit |
| CN202731773U (en) * | 2012-05-28 | 2013-02-13 | 中国石油天然气股份有限公司 | Double-eccentric correction device of well opening packaging box |
| CN203321400U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气股份有限公司 | Self-lubricating packing box device of oil well |
| CN206458390U (en) * | 2016-12-30 | 2017-09-01 | 中国石油天然气股份有限公司 | A kind of anti-bias wear packing box |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034022Y (en) * | 2007-05-28 | 2008-03-12 | 青绍江 | Eccentric-wear preventive eccentric adaptor of pumping rod |
| CN101158277A (en) * | 2007-11-09 | 2008-04-09 | 张建国 | Multifunctional polish rod sealing device |
| CN201133229Y (en) * | 2007-12-14 | 2008-10-15 | 季惠军 | Combination type packing kit |
| CN202731773U (en) * | 2012-05-28 | 2013-02-13 | 中国石油天然气股份有限公司 | Double-eccentric correction device of well opening packaging box |
| CN203321400U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气股份有限公司 | Self-lubricating packing box device of oil well |
| CN206458390U (en) * | 2016-12-30 | 2017-09-01 | 中国石油天然气股份有限公司 | A kind of anti-bias wear packing box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914798A (en) * | 2020-07-08 | 2022-01-11 | 中国石油天然气股份有限公司 | Device for drilling fluid circulation system |
| CN113914798B (en) * | 2020-07-08 | 2024-03-26 | 中国石油天然气股份有限公司 | Device for drilling fluid circulation system |
| CN114622895A (en) * | 2020-12-11 | 2022-06-14 | 中国石油化工股份有限公司 | Pumping unit polished rod eccentric wear alarm trigger device |
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