CN106704330A - Self-locking horse head pin device - Google Patents
Self-locking horse head pin device Download PDFInfo
- Publication number
- CN106704330A CN106704330A CN201611039652.1A CN201611039652A CN106704330A CN 106704330 A CN106704330 A CN 106704330A CN 201611039652 A CN201611039652 A CN 201611039652A CN 106704330 A CN106704330 A CN 106704330A
- Authority
- CN
- China
- Prior art keywords
- locking
- horse head
- self
- lock core
- pin device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 241001023788 Cyttus traversi Species 0.000 title claims abstract description 40
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 description 5
- 241001331845 Equus asinus x caballus Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention provides a self-locking horse head pin device. The self-locking horse head pin device comprises a pin body boss (1), a pin body (2), a sliding way (3), a lock cylinder chamber (4), a conical tail (5), an opening groove (6), a locking connection rod (7), a lock cylinder (8), a locking nut (9) and a spring washer (10). Connection is performed according to the structural cooperation relationship, and the self-locking horse head pin device is formed. According to the self-locking horse head pin device, the gap between a pin hole and the pin body can be adjusted, the pin hole is tightly expanded all the time, and vibration caused by abrasion of the pin hole can be avoided.
Description
Technical field
The present invention relates to the field of recovering the oil, and in particular to the part that the walking beam of oil-field oil pumper is connected with horse head, i.e., it is a kind of from
Locking horse head pin device.
Background technology
Horse head pin of pumping unit device is the part connected for beam pumping unit walking beam and horse head.
Oil pumper operationally, because horse head bears stress alternation, cause walking beam and horse head connecting pin bores and mule head pin it
Between produce abrasion, occur it is spacious dynamic, junction send crash when crash the sound worked as, deviate from pin, horse head cracking causes safe thing
Therefore.
In sum, there is problems with the prior art：Mule head pin easily departs from between horse head connecting pin bores, causes
Security incident.
The content of the invention
The present invention provides a kind of self-locking horse head pin device, is easily taken off between horse head connecting pin bores with solving mule head pin
From, cause the problem of security incident.
Therefore, the present invention proposes a kind of self-locking horse head pin device, the self-locking horse head pin device includes：
Shank；
It is connected to the shank boss at the top of the shank；
Open slot, is arranged on the lateral of the shank and stretches out the top of the shank boss from bottom to up；
Lock core room, is arranged in the open slot and is located at the bottom of the open slot；The lock core room has positioned at institute
State the inwall on the inside of open slot；
The slideway of extension is inclined from top to bottom, is arranged in the open slot and by the inwall of the lock core room；It is described
Slideway intersects angle a with the axis of shank, and a is more than 0 degree, less than 45 degree；
Locking nut, is arranged on the top of the shank boss and is fastened on the top of open slot；
The lock core that can be slided along the slideway, is arranged in the lock core room and is fixedly connected with the locking nut, leads to
Tightening for the locking nut is crossed, the lock core is along the slideway upward sliding, while the lateral surface of the lock core is radially stretched
Go out the open slot tensioner horse head connecting pin bores.
Further, the open slot is straight trough.
Further, the angle a is 8 degree to 12 degree.
Further, the lock core is closing piece.
Further, the lateral surface of closing piece is arc surface.
Further, the lock core connects the locking nut by locking connecting rod, is provided with the top of the locking connecting rod
External screw thread.
Further, the slideway is plane.
Further, the slideway is the face of cylinder.
Further, the diameter of the lateral surface of the closing piece is identical with the diameter of the shank.
Further, the locking connecting rod is round bar, the depth of the bore less than the open slot of the locking connecting rod.
Lock core feeding lock core room, and shank are loaded into pin-and-hole together, turn clockwise locking nut, band movable lock core is along slideway
Move up, axial tension is changed into lateral thrust, lock core is stretched out overflow pin-and-hole clearance.Therefore, lock core tensioner pin-and-hole all the time, can
Pin bore wear is avoided to produce vibration.
Simple structure of the present invention, compact, required part only provide simple machining, and cost is relatively low, substantially reduces
The cost that pumping unit horsehead is installed and used.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of self-locking horse head pin device of the invention；
Fig. 2 is the cross section structure diagram in self-locking horse head pin device main view direction of the invention.
Drawing reference numeral explanation：
1st, shank boss；
2nd, shank；
3rd, slideway；
4th, lock core room；
5th, tail is bored；
6th, open slot；
7th, connecting rod is locked；
8th, lock core；
9th, locking nut；
10th, spring washer
Specific embodiment
In order to be more clearly understood to technical characteristic of the invention, purpose and effect, now control illustrates this hair
It is bright.
As depicted in figs. 1 and 2, self-locking horse head pin device of the invention includes：
Shank 2, for example, cylinder, for being inserted into horse head connecting pin bores；
The shank boss 1 at the top of the shank 2 is connected to, for example, with diameter greater than the round platform of horse head connecting pin bores, is used for
Block horse head connecting pin bores (abbreviation pin-and-hole)；
Positioned at the cone tail 5 (afterbody of taper) of the bottom of the shank 2, to be oriented to；
Open slot 6, is arranged on the lateral of the shank 2 and stretches out the top of the shank boss 1 from bottom to up, to provide
The space of the movement of lock core 8；
Lock core room 4, is arranged in the open slot 6 and is located at the bottom of the open slot 6, for accommodating lock core 8；It is described
Lock core room has the inwall positioned at the inner side of the open slot 6；I.e. lock core room has the inwall away from the opening of open slot 6, Huo Zhesuo
Core room has the inwall in face of the opening of open slot 6, and the outside (near the outer surface of shank 2) of lock core room 4 is penetrating, i.e. lock core
The outside of room 4 is the bottom opening of open slot；
The slideway 3 of extension is inclined from top to bottom, is arranged in the open slot 6 and (remote by the inwall of the lock core room 4
From the outer surface of shank 2)；The slideway 3 intersects angle a with the axis of shank 2, and a is more than 0 degree, less than 45 degree；
Locking nut 9, is arranged on the top of the shank boss 1 and is fastened on the top of open slot 6；Can be along the slideway
3 lock cores 8 for sliding, are arranged in the lock core room 4 and are fixedly connected with the locking nut 9, by the locking nut 9
Tighten, the lock core 8 is along the upward sliding of the slideway 3, while the lateral surface of the lock core 8 extends radially the open slot 6
Tensioner horse head connecting pin bores.
Further, the open slot 6 is straight trough, is easy to processing, is easy to the rectilinear movement of lock core 8.
Further, the angle a is 8 degree to 12 degree, is reasonably received with obtaining the suitable tensioner degree of lock core 8 and undertaking
Power.Angle a is, for example, 10 degree, with preferable tensioner degree and stressed effect.
Further, the lock core 8 is closing piece, to process.
Further, the lateral surface of closing piece is arc surface, to coordinate with pin-and-hole.The medial surface of closing piece is identical with slideway
The plane or curved surface of gradient.Further, the diameter of the lateral surface of the closing piece is identical with the diameter of the shank 2, to realize
With the tight fit of pin-and-hole.
Further, the lock core 8 connects the locking nut 9 by locking connecting rod 7, to realize strong connection, institute
The top for stating locking connecting rod 7 is provided with external screw thread, to coordinate with locking nut 9, for damping and locking, on locking connecting rod 7
It is arranged with spring washer 10.
Further, the slideway 3 is plane, so as to clamping.
Further, the slideway 3 is the face of cylinder or circular conical surface, to process.
Further, the locking connecting rod 7 is round bar, the depth of the bore less than the open slot 6 of the locking connecting rod 7
Degree.Open slot 6 is extended laterally to avoid locking connecting rod 7 from being in course of adjustment, with pin bore wear.
The present invention can solve the problem that existing oil pumping machine mule head pin operationally, the abrasion increasing of the spacious dynamic, shank of generation and pin-and-hole,
Be simultaneously emitted by crash when crash the problem of sound worked as.After using device of the invention, pin-and-hole and shank gap are can adjust, all the time tensioner
Pin-and-hole, can avoid pin bore wear from producing vibration.
Simple structure of the present invention, compact, required part only provide simple machining, and cost is relatively low, substantially reduces
The cost that pumping unit horsehead is installed and used.
Schematical specific embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.For this
Each part of invention can be mutually combined under conditions of not conflicting, any those skilled in the art, not depart from this
Done equivalent variations and modification, all should belong to the scope of protection of the invention on the premise of the design of invention and principle.
Claims (10)
1. a kind of self-locking horse head pin device, it is characterised in that the self-locking horse head pin device includes：
Shank (2)；
It is connected to the shank boss (1) at the top of the shank (2)；
Open slot (6), is arranged on the lateral of the shank (2) and stretches out the top of the shank boss (1) from bottom to up；
Lock core room (4), is arranged in the open slot (6) and is located at the bottom of the open slot (6)；The lock core room has position
Inwall on the inside of the open slot (6)；
The slideway (3) of extension is inclined from top to bottom, is arranged in the open slot (6) and by the inwall of the lock core room (4)；
The slideway (3) intersects angle a with the axis of shank (2), and a is more than 0 degree, less than 45 degree；
Locking nut (9), is arranged on the top of the shank boss (1) and is fastened on the top of open slot (6)；
The lock core (8) that can be slided along the slideway (3), is arranged in the lock core room (4) and fixed with the locking nut (9)
Connection, by tightening for the locking nut (9), the lock core (8) along the slideway (3) upward sliding, while the lock core
(8) lateral surface extends radially the open slot (6) tensioner horse head connecting pin bores.
2. self-locking horse head pin device as claimed in claim 1, it is characterised in that the open slot (6) is straight trough.
3. self-locking horse head pin device as claimed in claim 1, it is characterised in that the angle a is 8 degree to 12 degree.
4. self-locking horse head pin device as claimed in claim 1, it is characterised in that the lock core (8) is closing piece.
5. self-locking horse head pin device as claimed in claim 4, it is characterised in that the lateral surface of closing piece is arc surface.
6. self-locking horse head pin device as claimed in claim 1, it is characterised in that the lock core (8) is by locking connecting rod
(7) locking nut (9) is connected, external screw thread is provided with the top of locking connecting rod (7).
7. self-locking horse head pin device as claimed in claim 1, it is characterised in that the slideway (3) is plane.
8. self-locking horse head pin device as claimed in claim 1, it is characterised in that the slideway (3) is the face of cylinder.
9. self-locking horse head pin device as claimed in claim 5, it is characterised in that the diameter of the lateral surface of the closing piece with
The diameter of the shank (2) is identical.
10. self-locking horse head pin device as claimed in claim 6, it is characterised in that the locking connecting rod (7) is round bar,
The depth of the bore less than the open slot (6) of locking connecting rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039652.1A CN106704330B (en) | 2016-11-11 | 2016-11-11 | Self-locking horse head pin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039652.1A CN106704330B (en) | 2016-11-11 | 2016-11-11 | Self-locking horse head pin device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106704330A true CN106704330A (en) | 2017-05-24 |
| CN106704330B CN106704330B (en) | 2019-07-09 |
Family
ID=58940377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611039652.1A Active CN106704330B (en) | 2016-11-11 | 2016-11-11 | Self-locking horse head pin device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704330B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853018A (en) * | 2019-04-28 | 2020-10-30 | 中国石油天然气股份有限公司 | Donkey head pin and tensioning method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB168773A (en) * | 1920-08-20 | 1921-09-15 | Thaddeus Leon Euclid Haug | Improvements in bolts |
| CN2171719Y (en) * | 1993-08-07 | 1994-07-13 | 陈振兴 | Quick dismounting eccentric fixed bolt |
| CA2472873A1 (en) * | 2003-08-12 | 2005-02-12 | Jim J. Berna | Fastener with key way and locking piece |
| CN201281064Y (en) * | 2008-11-03 | 2009-07-29 | 张卫 | Wedge-type expansion screw |
| CN102434566A (en) * | 2011-11-15 | 2012-05-02 | 张更生 | Anti-shock and anti-dropping self-locking bolt |
| CN203627473U (en) * | 2013-11-29 | 2014-06-04 | 董立新 | Internal expanding horse head pin for pumping unit |
| CN104895888A (en) * | 2015-05-26 | 2015-09-09 | 中国石油天然气股份有限公司 | Horsehead connecting pin |
| CN206309727U (en) * | 2016-11-11 | 2017-07-07 | 中国石油天然气股份有限公司 | Self-locking horse head pin device |
-
2016
- 2016-11-11 CN CN201611039652.1A patent/CN106704330B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB168773A (en) * | 1920-08-20 | 1921-09-15 | Thaddeus Leon Euclid Haug | Improvements in bolts |
| CN2171719Y (en) * | 1993-08-07 | 1994-07-13 | 陈振兴 | Quick dismounting eccentric fixed bolt |
| CA2472873A1 (en) * | 2003-08-12 | 2005-02-12 | Jim J. Berna | Fastener with key way and locking piece |
| CN201281064Y (en) * | 2008-11-03 | 2009-07-29 | 张卫 | Wedge-type expansion screw |
| CN102434566A (en) * | 2011-11-15 | 2012-05-02 | 张更生 | Anti-shock and anti-dropping self-locking bolt |
| CN203627473U (en) * | 2013-11-29 | 2014-06-04 | 董立新 | Internal expanding horse head pin for pumping unit |
| CN104895888A (en) * | 2015-05-26 | 2015-09-09 | 中国石油天然气股份有限公司 | Horsehead connecting pin |
| CN206309727U (en) * | 2016-11-11 | 2017-07-07 | 中国石油天然气股份有限公司 | Self-locking horse head pin device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853018A (en) * | 2019-04-28 | 2020-10-30 | 中国石油天然气股份有限公司 | Donkey head pin and tensioning method |
| CN111853018B (en) * | 2019-04-28 | 2022-03-29 | 中国石油天然气股份有限公司 | Donkey head pin and tensioning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106704330B (en) | 2019-07-09 |
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| PB01 | Publication | ||
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| GR01 | Patent grant |