CN206458390U - A kind of anti-bias wear packing box - Google Patents
A kind of anti-bias wear packing box Download PDFInfo
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- CN206458390U CN206458390U CN201621476133.7U CN201621476133U CN206458390U CN 206458390 U CN206458390 U CN 206458390U CN 201621476133 U CN201621476133 U CN 201621476133U CN 206458390 U CN206458390 U CN 206458390U
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- packing box
- box body
- packing
- eccentric bushing
- eccentric
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Abstract
The utility model 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 the gland for compressing packing upper end in packing box body, and packing box also includes regulating part, double eccentric sleeves.Wherein, regulating part can be arranged in packing box body up or down, 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 overlaps by adjustment the axis of packing box and the axis of polished rod, to prevent packing box and polished rod eccentric wear, and good sealing effect, be conveniently replaceable packing, can be used in large-scale promotion.
Description
Technical field
The utility model is related 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 filled with it for the packing through polished rod, to seal
Annular space between oil pipe and polished rod.But the progress produced with oil field, many oil wells by geologic(al) factor, install factor,
Pipeline, which such as biases at the influence, causes well mouth of oil well to glance off, and causes polished rod and packing box decentraction, packing and polished rod is unidirectionally ground
Damage serious, easily cause the leakage of well head thorn, oil, pollution environment are run, while also potential safety hazard can be caused because of the leakage of oil gas.For gram
Packing and polished rod must often be changed by taking the generation of these problems, wasted time and energy, added the cost of oilfield exploitation operation.Therefore
It is necessary to provide a kind of axis adjustable packing box, is overlapped with the axis with polished rod, and then packing box and polished rod is reduced or avoided
Unidirectional eccentric wear.
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, being arranged on is used for the gland for compressing packing inside packing box, be arranged on the tuningout seat of packing box lower end, tuningout box set
On tuningout seat, the bottom of tuningout box is connected with wellhead tee joint.Wherein, packing is provided with 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
Correspondingly shifted under power, the thrust of polished rod and tuningout seat skew drives packing box overall 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.
Designer has found that prior art at least has problems with：
The automatic deflection adjusting formula wellhead packing box that prior art is provided, after polished rod is glanced off, although the axis of packing box
Can again it 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 change packing inconvenience.
Utility model content
The utility model embodiment technical problem to be solved is to make the axle of packing box there is provided a kind of can adjust
Line is overlapped with the axis of polished rod, and can compress packing again, and changes the convenient anti-bias wear packing box of packing.Particular technique side
Case is as follows：
The utility model embodiment provides a kind of anti-bias wear packing box, including packing box body, is sleeved on the packing
The packing box pressing cap of box body upper end and it is arranged on and is used for the gland for compressing packing upper end in the packing box body, it is described
Packing box also includes regulating part, can be arranged on up or down in the packing box body, and upper end and the packing lower end
Offset；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 can turn
Dynamic connection.
Specifically, preferably, the double eccentric sleeves include upper eccentric bushing, the connection for being from top to bottom sequentially connected with and turning on
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 adapter 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 inwall
Outer ring-shaped step on a circle is provided with 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-shaped step offsets；It is provided with the outer wall of the lower eccentric bushing on outer ring-shaped step under a circle, the well head connector
A circle lower inner ring shape step is provided with the inwall 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-shaped step, the bottom wall of the lower eccentric bushing with it is described under
Annular step offsets.
Specifically, preferably, the packing box body bottom is peripherally disposed steel ring slot on a circle first；Institute
The a circle first lower steel ring groove relative with steel ring slot on described first is provided with the end face for stating 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 groove 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 with the end face of the lower inner ring shape step upper end on a circle and described second
The second relative lower steel ring groove of steel ring slot；The second annular is formed after steel ring slot is docked with the second lower steel ring groove on described second
Space；A steel ring is respectively arranged with the first annular space and second annular space.
Specifically, preferably, the packing box also includes upper 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 top cover of the upper eccentric pressure cap
Offseted with the upper outer ring-shaped step；The lower eccentric pressure cap thread set connects in the lower eccentric bushing and the well head connector
Connect on the outer wall at place, and the top cover of the lower eccentric pressure cap offsets with the lower outer ring-shaped step.
Specifically, preferably, the regulating part includes adjustment barrel and gear part；The adjustment barrel is axially displaceably set
Put 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, penetrates rotatably the gear of the gear shaft；The packing box body and institute
State and be provided with a gear grooved on the relative side wall of teeth, the gear shaft is fixed in the gear grooved, the gear and institute
Teeth are stated to be meshed；When the gear is rotated 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 chamber is provided with the oil storage tank above the gland
The grease nipple turned on the oil storage tank is provided with the side wall of packing box pressing cap.
Specifically, preferably, the annular that the packing box also includes being arranged in the top cover of the packing box pressing cap is scraped
Oily device；The annular oil wiper is located at the top of the oil storage tank, and middle part inner chamber is used to pass through with making polished rod dynamic sealing.
Specifically, preferably, the annular oil wiper is packing；The packing box also includes being arranged on the packing box
Oil wiper gland in the top cover of pressure cap, for the oil wiper to be pressed in the packing box pressing cap.
The beneficial effect brought of technical scheme that the utility model embodiment is provided is：
The anti-bias wear packing box that the utility model embodiment is provided, is rotatably connected by setting with packing box body lower end
Double eccentric sleeves, and the lower end and the upper end of well head connector of double eccentric sleeves is rotatably connected, may be implemented in rotation adjustment plate
When root box body and double eccentric sleeves, the upper end of packing box body double eccentric sleeves or the axis relative position of lower end is set to change,
So that the axis of packing box body and the axis of polished rod are overlapped, to prevent packing and polished rod from occurring eccentric wear.By setting regulating part,
It may be implemented in by the intrinsic packing compression of packing box after levelling packing box, so that between the annular between packing_seal and polished rod
Gap, during packing is changed, is easy to squeeze out packing.It can be seen that, the anti-bias indian abution root that the utility model embodiment is provided
Box overlaps by adjustment the axis of packing box and the axis of polished rod, to prevent packing box and polished rod eccentric wear, and sealing effectiveness
It is good, be conveniently replaceable packing, can large-scale promotion use.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the profile for the anti-bias wear packing box that the utility model embodiment is provided；
Fig. 2 is the profile for the double eccentric sleeves that the utility model embodiment is provided.
Wherein, reference is represented 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 adapter 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.
Embodiment
Unless otherwise defined, all technical terms used in the utility model embodiment are respectively provided with and those skilled in the art
The identical implication being generally understood that.To make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with attached
Figure is described in further detail to the utility model embodiment.
The utility model embodiment provides a kind of anti-bias wear packing box, as shown in Figure 1, including packing box body 1, set
Mounted in the upper end of packing box body 1 packing box pressing cap 2 and be arranged on and be used for the pressure for compressing the upper end of packing 3 in packing box body 1
Lid 4, regulating part 5, double eccentric sleeves 6.Wherein, regulating part 5 can be arranged in packing box body 1 up or down, and upper end with
The lower end of packing 3 offsets；The upper end of double eccentric sleeves 6 and the lower end of packing box body 1 are rotatably connected, lower end and well head connector 7
Upper end is rotatably connected.
The operation principle of the anti-bias wear packing box provided below with regard to the utility model embodiment, which is given, to be described：
With the reciprocal operation of polished rod, polished rod is glanced off, and to extrude 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, the utility model embodiment provides a kind of anti-bias wear packing box, passed through
The double eccentric sleeves 6 of rotation adjustment packing box body 1 or rotary sleeve mounted in the lower end of packing box body 1 are asked to solve above-mentioned technology
Topic.Wherein, the packing box body 1 of the packing box is sleeved on polished rod, and the upper end of packing box body 1 is set with packing box pressing cap 2, disk
The gland 4 being sleeved on polished rod and for compressing the upper end of packing 3 is provided with root box body 1, can be turned with the lower end of packing box body 1
The lower end of double eccentric sleeves 6 of dynamic connection is rotatably connected with the upper end of well head connector 7.When polished rod is glanced off, due to double bias
Cover 6 upper ends to be set for the eccentric with the lower end of packing box body 1, only rotation adjustment packing box body 1, packing box body 1 can be made and double
The axis relative position of the upper end of eccentric bushing 6 changes, until the axis of packing box body 1 is overlapped with the axis of polished rod, with
Prevent packing 3 and polished rod eccentric wear.Because the lower end of double eccentric sleeves 6 is set for the eccentric with the upper end of well head connector 7, only adjusted by rotating
The lower end of whole double eccentric sleeves 6, can make the lower end of double eccentric sleeves 6 and the axis relative position of well head connector 7 change, and packing
Box body 1 is not relatively rotated with double eccentric sleeves 6, therefore the axis relative position of packing box body 1 and well head connector 7 is sent out
Changing, until making the axis of packing box body 1 be overlapped with the axis of polished rod, to prevent packing 3 and polished rod eccentric wear.By simultaneously
Rotation adjustment packing box body 1 and double eccentric sleeves 6, can also change packing box body 1 relative with the axis of the upper end of double eccentric sleeves 6
Position, or packing box body 1 and the axis relative position of the upper end of well head connector 7, so that the axis and light of packing box body 1
The axis of bar is overlapped, and then prevents packing 3 and polished rod eccentric wear., can be by adjusting in packing box 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, between sealing and polished rod
Annular gap, packing 3 when changing packing 3, can be ejected by adjusting regulating part 5, then packing 3 changed.
Understood based on above-mentioned, the anti-bias wear packing box that the utility model embodiment is provided, by setting and packing box body 1
The double eccentric sleeves 6 that lower end is rotatably connected, and the lower end and the upper end of well head connector 7 of double eccentric sleeves 6 is rotatably connected, can
Realize in rotation adjustment packing box body 1 and double eccentric sleeves 6, make the upper end or lower end of packing box body 1 and double eccentric sleeves 6
Axis relative position changes, so that the axis of packing box body 1 and the axis of polished rod are overlapped, to prevent packing 3 and polished rod
Generation eccentric wear.By setting regulating part 5, the packing 3 in packing box body 1 is compressed after may be implemented in levelling packing box, so that
Packing 3 seals the annular gap between polished rod, during packing 3 is changed, is easy to squeeze out packing 3.It can be seen that, this reality
The anti-bias wear packing box provided with new embodiment overlaps by adjustment the axis of packing box and the axis of polished rod, to prevent
Packing box and polished rod eccentric wear, and good sealing effect, are conveniently replaceable packing, can large-scale promotion use.
Specifically, in the utility model embodiment, as shown in accompanying drawing 1 and accompanying drawing 2, double eccentric sleeves 6 are included from top to bottom
Upper eccentric bushing 601, adapter sleeve 602, the lower eccentric bushing 603 for being sequentially connected with and turning on；The axis of upper eccentric bushing 601 and lower eccentric bushing
603 axis is located at the both sides of the axis of adapter sleeve 602 respectively；The lower end of upper eccentric bushing 601 and packing box body 1 rotatably connects
Connect；The upper end of lower eccentric bushing 603 and well head connector 7 is rotatably connected.The structure of double eccentric sleeves 6 is arranged such, is easy to implement
In rotation adjustment packing box body 1 and double eccentric sleeves 6, the axis of packing box body 1 is set to be overlapped with the axis of polished rod, also,
The axis of eccentric bushing 601 and the axis of lower eccentric bushing 603 is set to be located at the both sides of the axis of adapter sleeve 602 respectively, it can be ensured that double
Eccentric bushing 6 realizes larger offset distance.
Wherein, eccentric bushing 601 is rotatably connected with packing box body 1 in realization and lower eccentric bushing 603 is connected with well head
The embodiment that body 7 is rotatably connected has a variety of, for example：
As the first embodiment, upper eccentric bushing 601 is connected through a screw thread mode and is sleeved on outside the lower end of packing box body 1
Portion；Lower eccentric bushing 603 is connected through a screw thread mode and is set in inside the upper end of well head connector 7.The mode of threaded connection is easily set
Put, be easy to implement and be rotatably connected.
It is used as second of embodiment：A circle upper inner ring shape step, packing box body are provided with the upper inwall of eccentric bushing 601
Outer ring-shaped step on a circle is provided with 1 lower end outer wall；Upper eccentric bushing 601 is rotatably mounted around the lower end of packing box body 1
Outside, and the bottom wall of packing box body 1 offsets with upper inner ring shape step, and the upper roof of eccentric bushing 601 offsets with upper outer ring-shaped step；
It is provided with the outer wall of lower eccentric bushing 603 on outer ring-shaped step under a circle, the upper end inwall of well head connector 7 in being provided with a circle
Ring-shaped step；Lower eccentric bushing 603 is rotatably sleeved on inside the upper end of well head connector 7, and the roof of well head connector 7 with
Lower outer ring-shaped step offsets, and bottom wall and the lower inner ring shape step of lower eccentric bushing 603 offset.Pass through upper outer ring-shaped step, upper inner ring
Shape step, lower outer ring-shaped step, lower inner ring shape step are matched somebody with somebody and acted on and can play position-limiting action, with ensure it is in situ carry out it is above-mentioned
Rotatable process (only implementing to rotate, displacement is not produced in the axial direction).Under this kind of embodiment, it can pass through
Pulley and the circular chute that is adapted with pulley are set realize it is above-mentioned be rotatably connected, or, by setting annular to slide
Rail and the annular chute that is adapted with the ring-shaped sliding rail realize it is above-mentioned be rotatably connected, and etc..
For example, the bottom of packing box body 1 is peripherally disposed steel ring slot on a circle first；Upper inner ring shape step
The a circle first lower steel ring groove relative with steel ring slot on first is provided with 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 groove relative with steel ring slot on second is provided with the end face of lower inner ring shape step upper end；Steel ring on second
Groove forms the second annular space after being docked with the second lower steel ring groove；It is respectively arranged with first annular space and the second annular space
One steel ring.Being arranged such can ensure close between packing box body 1 and double eccentric sleeves 6, double eccentric sleeves 6 and well head connector 7
Feng Xing, is carried out while preferably realizing 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, is easy to 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
The operation that ensures subsequently to pump is smoothed out, as shown in Figure 1, and the packing box that the utility model embodiment is provided also includes packing box
Also include upper eccentric pressure cap 8 and lower eccentric pressure cap 9；The upper thread set of eccentric pressure cap 8 is in upper eccentric bushing 601 and packing box body 1
On the outer wall of junction, and the top cover of upper eccentric pressure cap 8 offsets with upper outer ring-shaped step；The lower thread set of eccentric pressure cap 9 exists
On the outer wall of lower eccentric bushing 603 and well head connector 7 junction, and the top cover of lower eccentric pressure cap 9 and lower outer ring-shaped step phase
Support.Eccentric pressure cap 8 and lower eccentric pressure cap 9 are easy to make packing box body 1 and double eccentric sleeves 6, and double eccentric sleeves 6 and well in setting
Mouth connector 7 is set with connection securely.When needing to rotate adjustment packing box body 1 or double eccentric sleeves 6, it is necessary to first by phase
Answer upper eccentric pressure cap 8 or lower eccentric pressure cap 9 at position to unclamp, then rotate packing box body 1 or double eccentric sleeves 6 to conjunction
Put right position.
It is understood that when implementing the first embodiment, can equally set eccentric pressure cap 8 and lower eccentric pressure
Cap 9, and identical effect can be reached.
In order to ensure between the upper outer ring-shaped step of packing box body 1 and the upper eccentric bushing 601 of double eccentric sleeves 6 and it is double partially
Sealed between the lower eccentric bushing 603 of heart set 6 and the lower inner ring shape step of well head connector 7, can be by setting multiple O-ring seals
To seal corresponding annular gap.
In the utility model embodiment, because the lower end of upper eccentric bushing 601 and packing box body 1 is rotatably connected, therefore
The wall thickness of the lower end of packing box body 1 is engaged with the upper inner ring shape step of upper eccentric bushing 601, i.e. the lower end of packing box body 1 is set
It is set to 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
Gradual change type wall thickness is set to, to be engaged with lower inner ring shape step.
In the utility model embodiment, using the left and right directions of the operating personnel in face of the anti-bias wear packing box as " left side ",
" right side ", using the fore-and-aft direction of the anti-bias wear packing box as "front", "rear".Adapter sleeve is deviateed with the upper eccentric bushing 601 of double eccentric sleeves 6
The side wall of 602 axis farther out is on right side, and lower eccentric bushing 603 deviates the side wall of the axis of adapter sleeve 602 farther out exemplified by left side：
When polished rod is offset to the left, it is necessary to adjust the anti-bias wear packing box that the utility model embodiment is provided to the left, so that
The axis of polished rod is overlapped with the axis of the anti-bias wear packing box.By rotating the lower end of adjustment packing box body 1, so that packing box
With being offseted at the inwall of the upper eccentric bushing 601 apart from the axis of adapter sleeve 602 farther out at the lower end wall thickness of body 1, so that packing box sheet
The axis of body 1 is offset to the left, and then the axis of packing box body 1 is overlapped with the axis of polished rod.
When polished rod is offset to the right, it is necessary to adjust the anti-bias wear packing box that the utility model embodiment is provided to the right, so that
The axis of polished rod is overlapped with the axis of anti-bias wear packing box.By rotating the lower eccentric bushing 603 of adjustment double eccentric sleeves 6, so that under
With being offseted at the inwall of the lower inner ring shape step apart from the axis of well head connector 7 farther out at the wall thickness of eccentric bushing 603, so that double inclined
The axis of heart set 6 is offset to the right, to drive the packing box body 1 being set in upper eccentric bushing 601 to offset to the right, and then makes packing
The axis of box body 1 is overlapped with the axis of polished rod.
When polished rod is offset 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 are overlapped.
Specifically, as shown in Figure 1, in the utility model embodiment, 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, adjustment barrel 501
Side wall be from top to bottom provided with a row teeth；Gear part 502 includes gear shaft, penetrates rotatably the gear of gear shaft；Disk
A gear grooved is provided with the side wall relative with teeth of root box body 1, gear shaft is fixed in gear grooved, gear and teeth phase
Engagement；When gear is rotated in gear grooved, adjustment barrel 501 is driven to move up and down.By rotating gear part 502, tooth can be made
Wheel gives teeth thrust, and to promote adjustment barrel 501, motion extrudes packing 3 or moved downward upwards.For example, packing box is worked as
When interior packing 3 fluffs, so that adjustment barrel 501 compresses packing 3, packing 3 can be made to seal and polished rod by adjusting gear part 502
Between annular gap., can be by adjusting gear part 502, to extrude packing 3 when changing packing 3, this makes replacing packing 3
It is easy to operate.By the way that regulating part 5 is defined as above so that the compression operation of packing 3 more convenient, safety and controllability
By force.
For the ease of rotating gear part 502, the regulating part 5 also includes being detachably connected with the gear shaft of gear part 502
Handle, by swing handle so that gear part 502 is rotated.Wherein, handle and the axis of gear part 502 can be threaded connection
Or clamping, when needing adjustment gear part 502, handle and the axis of gear part 502 are connected, after adjustment is finished, can by
Hand is disassembled from gear part 502.It should be noted that the installation of handle does not influence gear normal rotation in teeth groove.
Specifically, in the utility model embodiment, as shown in Figure 1, the inner chamber of packing box pressing cap 2 is provided with positioned at gland
The grease nipple 11 turned on oil storage tank 10 is provided with the oil storage tank 10 of 4 tops, the side wall of packing box pressing cap 2.Grease nipple is set
11 are easy to the injection butter in oil storage tank 10, make oil pumper in reciprocating motion, polished rod is through oil storage tank 10 and moves reciprocatingly,
Butter in oil storage tank 10 is coated on polished rod, to reduce the friction between polished rod and packing 3, extends the service life of packing 3.
Wherein, oil storage tank 10 is that the reaming stepped hole that the inner chamber of packing box pressing cap 2 is set, the i.e. diameter of oil storage tank 10 are more than packing box pressing cap
The diameter in other holes in 2 inner chambers, in order to store butter.
Specifically, annular oil wiper 12 can be packing, can play a part 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 top cover of packing box pressing cap 2, the utility model embodiment
The packing box of offer also includes the oil wiper gland 13 being arranged in the top cover of packing box pressing cap 2, for oil wiper 12 to be compressed
In packing box pressing cap 2.Wherein, the big footpath stepped hole that is provided through polished rod on the roof of packing box pressing cap 2 and is connected and small
Footpath stepped 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 offseted with the lower end of big footpath stepped hole, set big footpath stepped hole and path stepped hole to be easy to annular oil wiper 12 and frizing
Position of the device gland 13 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
It is adapted with polished rod.
Wherein, the mode that oil wiper gland 13 is fixed on the roof of packing box pressing cap 2 has a variety of, for example, be used as one
Plant embodiment：Oil wiper gland 13 is connected with the roof of packing box pressing cap 2 by housing pin, oil wiper gland 13 and disk
Multiple vertical screws are provided with the roof of root box pressing cap 2, vertical screw is respectively penetrated by multiple housing pins, will be scraped
Oily device gland 13 is fixed on packing box pressing cap 2.Such a mode is set conveniently, is easy to oil wiper gland 13 and packing box pressing cap 2
Dismounting.
As another embodiment, internal thread, oil wiper pressure are provided with the wall of the big footpath stepped hole of packing box pressing cap 2
The external screw thread being adapted with the internal thread of big footpath stepped hole is provided with the side wall of lid 13, oil wiper gland 13 is connected through a screw thread
Mode is set in the big footpath stepped hole of packing box pressing cap 2.Now the upper surface of oil wiper gland 13 needs to be threaded counterbore,
In order to dismount oil wiper gland 13.
Preferred embodiment of the present utility model is the foregoing is only, not to limit protection domain of the present utility model,
It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc. should be included in this reality
Within new protection domain.
Claims (10)
1. a kind of anti-bias wear packing box, including packing box body (1), the packing box for being sleeved on packing box body (1) upper end
Pressure cap (2) and it is arranged on and is used for the gland (4) for compressing packing (3) upper end in the packing box body (1), it is characterised in that
The packing box also 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, it is characterised in that the double eccentric sleeves (6) include from top to bottom sequentially connecting
Upper eccentric bushing (601), adapter sleeve (602), the lower eccentric bushing (603) for connecing and turning on；
The axis of the upper eccentric bushing (601) and the axis of the lower eccentric bushing (603) are located at the adapter sleeve (602) axle 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, it is characterised 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, it is characterised in that be provided with a circle on upper eccentric bushing (601) inwall
Outer ring-shaped step on a circle is provided with upper inner ring shape step, 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-shaped step；
Outer ring-shaped step under a circle, well head connector (7) upper end inwall are provided with 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 junctor (7) offsets with the lower outer ring-shaped step, bottom wall and the lower inner ring shape step of the lower eccentric bushing (603)
Offset.
5. packing box according to claim 4, it is characterised in that packing box body (1) bottom 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 with the end face of the upper inner ring shape step upper end
The first relative lower steel ring groove；Steel ring slot forms first annular space after being docked with the first lower steel ring groove 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 groove relative with steel ring slot on described second is provided with 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 groove docking；
A steel ring is respectively arranged with the first annular space and second annular space.
6. packing box according to claim 5, it is characterised in that the packing box also include upper eccentric pressure cap (8) and under
Eccentric pressure cap (9)；
Upper eccentric pressure cap (8) thread set on described eccentric bushing (601) and the packing box body (1) junction it is outer
On wall, and the top cover of the upper eccentric pressure cap (8) offsets with the upper outer ring-shaped step；
Lower eccentric pressure cap (9) thread set is in the outer of the lower eccentric bushing (603) and the well head connector (7) junction
On wall, and the top cover of the lower eccentric pressure cap (9) offsets with the lower outer ring-shaped step.
7. packing box according to claim 1, it is characterised 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) offset；
The side wall of the adjustment barrel (501) is from top to bottom provided with a row teeth；
The gear part (502) includes gear shaft, penetrates rotatably the gear of the gear shaft；
A gear grooved is provided with the packing box body (1) the side wall relative with the teeth, the gear shaft is fixed on
In the gear grooved, the gear is meshed with the teeth；
When the gear is rotated in the gear grooved, the adjustment barrel (501) is driven to move up and down.
8. packing box according to claim 1, it is characterised in that packing box pressing cap (2) inner chamber is provided with positioned at institute
State to be provided with the oil storage tank (10) above gland (4), the side wall of the packing box pressing cap (2) and turned on the oil storage tank (10)
Grease nipple (11).
9. packing box according to claim 8, it is characterised in that the packing box also includes being arranged on the packing box pressure
Annular oil wiper (12) in the top cover of cap (2)；
The annular oil wiper (12) is located at the top of the oil storage tank (10), and middle part inner chamber is used for making polished rod dynamic sealing
Pass through.
10. packing box according to claim 9, it is characterised in that the annular oil wiper (12) is packing；
The packing box also includes being arranged on oil wiper gland (13) in the top 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 |
|---|---|---|---|
| CN201621476133.7U CN206458390U (en) | 2016-12-30 | 2016-12-30 | A kind of anti-bias wear packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476133.7U CN206458390U (en) | 2016-12-30 | 2016-12-30 | A kind of anti-bias wear packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458390U true CN206458390U (en) | 2017-09-01 |
Family
ID=59696671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621476133.7U Active CN206458390U (en) | 2016-12-30 | 2016-12-30 | A kind of anti-bias wear packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266152A (en) * | 2016-12-30 | 2018-07-10 | 中国石油天然气股份有限公司 | A kind of anti-bias wear packing box |
-
2016
- 2016-12-30 CN CN201621476133.7U patent/CN206458390U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266152A (en) * | 2016-12-30 | 2018-07-10 | 中国石油天然气股份有限公司 | A kind of anti-bias wear packing box |
| CN108266152B (en) * | 2016-12-30 | 2024-05-28 | 中国石油天然气股份有限公司 | Anti-eccentric packing box |
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