CN209195364U - Pumping unit horsehead locking mechanism - Google Patents
Pumping unit horsehead locking mechanism Download PDFInfo
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- CN209195364U CN209195364U CN201821570374.7U CN201821570374U CN209195364U CN 209195364 U CN209195364 U CN 209195364U CN 201821570374 U CN201821570374 U CN 201821570374U CN 209195364 U CN209195364 U CN 209195364U
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- head
- walking beam
- pin
- mule
- horse head
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Abstract
The utility model relates to pumping units, in particular to pumping unit horsehead locking mechanism.Pumping unit horsehead locking mechanism, including walking beam and horse head, walking beam is equipped with upper walking beam pin shaft plate, lower walking beam pin shaft plate, horse head is equipped with upper mule head pin axillare, lower mule head pin axillare, mule head pin is equipped on upper walking beam pin shaft plate and upper mule head pin axillare, lower mule head pin is equipped on lower walking beam pin shaft plate and lower mule head pin axillare, it is fixedly connected between horse head and walking beam by upper mule head pin and lower mule head pin, the pushing tow structure of the top half for pushing tow horse head is equipped between walking beam and horse head, the drawing structure of the lower half portion for pulling horse head is additionally provided between walking beam and horse head.Above scheme can improve the stress at lower mule head pin, it avoids occurring at lower mule head pin spacious dynamic, and pushing tow structure and drawing structure collective effect can be to avoid spacious dynamic to impacting at upper mule head pin at lower mule head pin, so that horse head be avoided to be easy spacious dynamic problem on the whole.
Description
Technical field
The utility model relates to pumping units, in particular to pumping unit horsehead locking mechanism.
Background technique
Currently, oil field largely uses beam pumping unit in the process of development, the main force as exploitation petroleum is set
It is standby, underground load is loaded by horse head when beam pumping unit works and is moved up and down, downhole crude is produced into ground.Existing allusion quotation
In type pumping unit, horse head is equipped with mule head pin axillare at upper and lower two, is accordingly equipped with walking beam pin shaft plate at upper and lower two, donkey on walking beam
Head is fixed on walking beam by passing through the mule head pin of mule head pin axillare and walking beam pin shaft plate, such as Authorization Notice No. is
Pumping unit disclosed in CN203257383U.With the growth of runing time, the horse head of this pumping unit is easy to appear spacious dynamic existing
As, main cause is that downhole load reaches 6-12T, under long-term working order, the mule head pin and pin shaft plate of walking beam and horse head are connected
On pin hole between easily wear, cause the pin hole aperture on walking beam and/or horse head to become larger, mule head pin generates spacious dynamic, horse head
It will be abnormal sound and vibration in the running, or even pin hole is caused to tear.After there is tearing in pin hole on mule head pin axillare
Need to carry out soldering, if discovery may cause horse head or walking beam is scrapped and needs replacing horse head or walking beam not in time, caused by lose
It is huge, and certain insecurity factor can be generated.
To solve the above problems, the Chinese patent that Authorization Notice No. is CN204663501U discloses a kind of pumping unit horsehead
Fixed device, is equipped with pushing tow structure (jacking mechanism in i.e. above-mentioned patent) on the top surface of walking beam, and pushing tow structure includes fixing
Pedestal on walking beam, pedestal include the transverse slat and vertical plate of at L-shaped arrangement, and vertical plate is equipped with fixture nut, and fixture nut is built-in
Equipped with fixture nut, fixture nut and the upper mule head pin axillare (fixing key seat on the horse head in i.e. above-mentioned patent) on horse head are right
It answers, mule head pin axillare can be held out against, loosening and the Fast Wearing of mule head pin can be reduced.
But when pumping unit runs to bottom dead centre, since horse head is spacious dynamic, entire horse head is in underground load and own wt
Under the influence of, horse head lower half portion can be spacious dynamic to the direction backwards to walking beam；When pumping unit runs to top dead-centre, entire horse head is in well
Under the influence of lower load and own wt, horse head lower half portion can be shunk to walking beam direction.Therefore, although horse head upper board part
It has been set holding device, but has still had spacious to a certain degree dynamic, has caused to occur wearing at mule head pin and deform.
Utility model content
The purpose of the utility model is to provide a kind of pumping unit horsehead locking mechanisms, better solve and pump in the prior art
The horse head of machine is easy to appear spacious dynamic problem.
The technical solutions adopted are as follows in the utility model.
Pumping unit horsehead locking mechanism, including walking beam and horse head, walking beam are equipped with upper walking beam pin shaft plate, lower walking beam pin shaft
Plate, horse head are equipped with upper mule head pin axillare, lower mule head pin axillare, are equipped with donkey on upper walking beam pin shaft plate and upper mule head pin axillare
Head pin, is equipped with lower mule head pin on lower walking beam pin shaft plate and lower mule head pin axillare, between horse head and walking beam by upper mule head pin and
Lower mule head pin is fixedly connected, and the pushing tow structure of the top half for pushing tow horse head, walking beam and donkey are equipped between walking beam and horse head
The drawing structure of the lower half portion for pulling horse head is additionally provided between head.
The technical solution the utility model has the advantages that the utility model by adopting the above technical scheme, by setting pull structure, can
Improve the stress at lower mule head pin, avoid appearance at lower mule head pin spacious dynamic, and pushing tow structure and drawing structure collective effect can
To avoid spacious dynamic to being impacted at upper mule head pin at lower mule head pin, so as to the state for making horse head be maintained at stable,
Horse head is avoided to be easy to appear spacious dynamic problem on the whole.
As a kind of perferred technical scheme, the drawing structure is connected to lower mule head pin axillare close to one end of horse head
On.
The utility model has the advantages that drawing structure be connected to close to one end of horse head it is compact-sized on lower mule head pin axillare, can be direct
Active force is generated to lower mule head pin axillare.
As a kind of perferred technical scheme, the drawing structure is equipped with drawing screw flight transmission mechanism.
The utility model has the advantages that drawing screw rod realizes drawing for transmitting traction force, it is equipped with drawing screw flight transmission mechanism
Can be convenient for that traction force is adjusted.
As a kind of perferred technical scheme, the drawing structure includes the pull rod being fixed on the lower half portion of horse head,
It further include the draw-bar seat that the downside of walking beam is arranged in protrusion, the pull rod passes through draw-bar seat, is threaded with adjusting on pull rod
Nut, the adjusting nut are located at draw-bar seat backwards to the side of horse head.
The utility model has the advantages that structure is simple using the above scheme, it is easy to implement.
As a kind of perferred technical scheme, fixture nut is fixed on the lower half portion of horse head, the pull rod screw connects
It connects in fixture nut to be fixed on the lower half portion of horse head.
The utility model has the advantages that setting fixture nut carrys out the assembly that steady brace is convenient for pull rod.
As a kind of perferred technical scheme, the pull rod is bolt.
The utility model has the advantages that pull rod is convenient for adjusting using bolt, it is easy to operate.
As a kind of perferred technical scheme, the fixture nut is welded on lower mule head pin axillare.
The utility model has the advantages that fixture nut is welded on structural strength height on lower mule head pin axillare, it is easy to accomplish.
Above-mentioned each preferred technical solution can be used individually, can also be with two or more any in the case where that can combine
Combination, the technical solution for combining formation no longer specifically describe herein, in this format included in the record of this patent.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment one of pumping unit horsehead locking mechanism in the utility model；
Fig. 2 is the structural schematic diagram of the embodiment two of pumping unit horsehead locking mechanism in the utility model.
The title of component part corresponding to corresponding appended drawing reference in figure are as follows: 10- walking beam, the upper walking beam pin shaft plate of 11-,
Walking beam pin shaft plate under 12-, 20- horse head, the upper mule head pin axillare of 21-, mule head pin axillare under 22-, the upper mule head pin of 31-, horse head under 32-
Pin, 40- fixture nut, 41- pull rod, 42- draw-bar seat, 43- adjusting nut, 51- tip-lever support, 52- mandril, 53- locking nut,
61- studs, outer six sides of 62-, 63- Stud connection seat.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
One embodiment of the utility model pumping unit horsehead locking mechanism as shown in Figure 1, include walking beam 10 and horse head 20,
Walking beam 10 is equipped with upper walking beam pin shaft plate 11, lower walking beam pin shaft plate 12, and horse head 20 is equipped with upper mule head pin axillare 21, lower mule head pin
Axillare 22 is equipped with mule head pin 31, lower walking beam pin shaft plate 12 and lower donkey on upper walking beam pin shaft plate 11 and upper mule head pin axillare 21
It is equipped with lower mule head pin 32 on head pin shaft plate 22, it is fixed by upper mule head pin 31 and lower mule head pin 32 between horse head 20 and walking beam 10
Connection.It is equipped with the pushing tow structure of the top half for pushing tow horse head 20 between walking beam 10 and horse head 20, is additionally provided with for pulling
The drawing structure of the lower half portion of horse head 20.
Drawing structure is thread transmission, including the fixation spiral shell being weldingly fixed on the lower mule head pin axillare 22 of horse head 20
Mother 40, the downside draw-bar seat 42 being arranged for protruding walking beam 10 and the pull rod 41 being threadedly coupled with fixture nut 40, the pull rod
41 be bolt, and easily bolt can be tightened in fixture nut 40 by the head of bolt.The pull rod 41 passes through
Draw-bar seat 42 is simultaneously vertical with the side of lower mule head pin axillare 22, and adjusting nut 43, the adjusting spiral shell are threaded on pull rod 41
Mother 43 is located at draw-bar seat 42 backwards to the side of horse head 20.Tightening secured adjusted nut 43 can be such that pull rod 41 leads to the transmitting of horse head 20
Gravitation realizes the drawing to 20 lower half portion of horse head.
Pushing tow structure includes mandril 52 and the tip-lever support 51 that is fixed on the upper side of walking beam 10, and mandril 52 uses bolt,
Tip-lever support 51 is equipped with internal screw thread, and mandril 52 is threaded on tip-lever support 51, and locking nut 53 is threaded on mandril 52, locks
Tight nut 53 is located at side of the tip-lever support 51 backwards to horse head 20.
When assembling horse head 20, the top half of horse head 20 is held out against by pushing tow structure, and horse head 20 is pulled by drawing structure
Lower half portion, pushing tow structure and drawing structure collective effect can be avoided at lower mule head pin 32 and occur spacious dynamic, while can keep away
Exempt from spacious move at lower mule head pin 32 to impact upper mule head pin 31, it is whole so as to the state for making horse head 20 be maintained at stable
Horse head 20 is avoided to be easy to appear spacious dynamic problem on body.
The embodiment two of pumping unit horsehead locking mechanism is as shown in Fig. 2, the present embodiment and embodiment one in the utility model
The difference is that pull rod is studs 61 in the present embodiment, the axial middle part of studs 61 is equipped with to be connected for tool
To realize outer six side 62 of torque transmitting, hinge axes have been respectively articulated on the upper and lower mule head pin axillare 22 of walking beam 10 along level side
To the Stud connection seat 63 of extension, Stud connection seat 63 is equipped with the screw thread being adapted to stud, forms thread transmission, passes through
The drawing to horse head 20 can be realized in rotation studs 61.
In other embodiments, pull rod 41, which can also tilt, is connected between walking beam 10 and horse head 20.
In other embodiments, drawing structure may be replaced by other forms, for example, on the basis of example 1,
Pull rod 41 is assembled on the lower half portion of horse head 20 along own axis, rotating tension bar 41 can be directly realized by donkey at this time
First 20 drawing；For another example, pull rod is welded direct on horse head, pull rod can be using externally threaded stud be had, in order to wear
Cross draw-bar seat.In other embodiments, drawing structure can also use the form in addition to screw thread pulls structure, such as in horse head
Setting drawing spring between 20 and walking beam 10.
In the above-described embodiments, the one end for pulling structure is connected on lower mule head pin axillare 22, and the other end is connected to walking beam
On 10 downside.In other embodiments, one end that drawing structure is connected with horse head 20 also can connect under horse head 20
In the main body of half part, one end that drawing structure is connected with walking beam 10 also be can connect in the side of the horizontal direction two sides of walking beam 10
On face.It is further to note that the quantity of pull rod 41 and mandril 52 can be adjusted according to stress condition.
Claims (7)
1. pumping unit horsehead locking mechanism, including walking beam and horse head, walking beam is equipped with upper walking beam pin shaft plate, lower walking beam pin shaft plate,
Horse head is equipped with upper mule head pin axillare, lower mule head pin axillare, is equipped with horse head on upper walking beam pin shaft plate and upper mule head pin axillare
Pin is equipped with lower mule head pin on lower walking beam pin shaft plate and lower mule head pin axillare, between horse head and walking beam by upper mule head pin and under
Mule head pin is fixedly connected, and the pushing tow structure of the top half for pushing tow horse head is equipped between walking beam and horse head, it is characterised in that:
The drawing structure of the lower half portion for pulling horse head is additionally provided between walking beam and horse head.
2. pumping unit horsehead locking mechanism according to claim 1, it is characterised in that: the drawing structure is close to horse head
One end is connected on lower mule head pin axillare.
3. pumping unit horsehead locking mechanism according to claim 1 or 2, it is characterised in that: the drawing structure be equipped with
Pull screw flight transmission mechanism.
4. pumping unit horsehead locking mechanism according to claim 3, it is characterised in that: the drawing structure includes being fixed on
Pull rod on the lower half portion of horse head, further includes the draw-bar seat that the downside of walking beam is arranged in protrusion, and the pull rod passes through pull rod
, it is threaded with adjusting nut on pull rod, the adjusting nut is located at draw-bar seat backwards to the side of horse head.
5. pumping unit horsehead locking mechanism according to claim 4, it is characterised in that: be fixed on the lower half portion of horse head
Fixture nut, the pull rod screw are connected in fixture nut to be fixed on the lower half portion of horse head.
6. pumping unit horsehead locking mechanism according to claim 4, it is characterised in that: the pull rod is bolt.
7. pumping unit horsehead locking mechanism according to claim 5, it is characterised in that: the fixture nut is welded on lower donkey
On head pin shaft plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821570374.7U CN209195364U (en) | 2018-09-26 | 2018-09-26 | Pumping unit horsehead locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821570374.7U CN209195364U (en) | 2018-09-26 | 2018-09-26 | Pumping unit horsehead locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209195364U true CN209195364U (en) | 2019-08-02 |
Family
ID=67406641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821570374.7U Active CN209195364U (en) | 2018-09-26 | 2018-09-26 | Pumping unit horsehead locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209195364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439430A (en) * | 2022-02-16 | 2022-05-06 | 中国石油化工股份有限公司 | Donkey head pulling assembly |
| CN114439431A (en) * | 2022-02-16 | 2022-05-06 | 中国石油化工股份有限公司 | Horse head assembly of oil pumping unit |
-
2018
- 2018-09-26 CN CN201821570374.7U patent/CN209195364U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439430A (en) * | 2022-02-16 | 2022-05-06 | 中国石油化工股份有限公司 | Donkey head pulling assembly |
| CN114439431A (en) * | 2022-02-16 | 2022-05-06 | 中国石油化工股份有限公司 | Horse head assembly of oil pumping unit |
| CN114439431B (en) * | 2022-02-16 | 2023-09-22 | 中国石油化工股份有限公司 | Horsehead assembly of oil pumping unit |
| CN114439430B (en) * | 2022-02-16 | 2023-09-22 | 中国石油化工股份有限公司 | Horsehead pulling assembly |
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