CN207982422U - A kind of oil pumping machine crank drawing splined arrangement - Google Patents
A kind of oil pumping machine crank drawing splined arrangement Download PDFInfo
- Publication number
- CN207982422U CN207982422U CN201820143622.3U CN201820143622U CN207982422U CN 207982422 U CN207982422 U CN 207982422U CN 201820143622 U CN201820143622 U CN 201820143622U CN 207982422 U CN207982422 U CN 207982422U
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- China
- Prior art keywords
- crank
- locating shaft
- keyway
- mandrel
- oil pumping
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model is related to pumping unit for oil field, more particularly to a kind of oil pumping machine crank draws splined arrangement.The crank lower end of the device is equipped with pedestal, support base is connected with pedestal, support base is equipped with locating shaft, locating shaft penetrates crank pin hole, locating shaft connects locking nut from one end that crank pin hole stretches out and is locked by locking nut, expansion sleeve is housed between locating shaft and crank pin hole, mandrel is set in the reducer output shaft connecting hole of crank, mandrel is connected with broaching machine, it is provided with keyway in mandrel axial direction, adjusting pad is equipped in keyway, the center of all crank pin holes in the key slot center and crank is on the same line.The utility model realizes positioning and is not required to centering, and accurate positioning is convenient and efficient, improves the machining accuracy and efficiency of crank keyway, after crank is installed with retarder by wedge key, scissors poor index meet GB/T29021 2012《Beam pumping unit》The requirement of standard.
Description
Technical field：
The utility model is related to pumping unit for oil field, more particularly to a kind of oil pumping machine crank draws splined arrangement.
Background technology：
Crank is one of the important component of pumping unit and pumping unit double leval jib component part, while playing counterweight.
Crank transmits torque with after reducer output shaft assembly by wedge key top and bottom, also needs to carry out scraping raising contact surface after installation
Product.The machining accuracy of crank keyway is most important, and the bottom end of keyway is 1:100 inclined-plane, slotting machine difficult processing are led to meeting the requirements
It is processed frequently with broaching machine.Crank keyway is other than ensureing itself precision, it is necessary to ensure the position with crank-pin mounting hole
Precision, to ensure crank with after retarder installation, crank price scissors reaches standard requirement.
Crank keyway needs centering broaching tool center and three crank-pin mounting hole centers on the same line in broaching,
The method of generally use is to use manually to be carried out with height gauge aligning method at present, and efficiency is low, and error is big, installs rear crank scissors
Difference is difficult to meet the requirements；The high precision machining of preamble, the serious raising for restricting productivity are required simultaneously.
Utility model content：
The technical problem to be solved by the present invention is to provide a kind of oil pumping machine cranks to draw splined arrangement, the arrangement achieves
Positioning is not required to centering, and accurate positioning is convenient and efficient, improves the machining accuracy and efficiency of crank keyway, crank and retarder
After being installed by wedge key, scissors poor index meet GB/T29021-2012《Beam pumping unit》The requirement of standard.It overcomes existing
There is the processing of crank keyway to need artificial centering, centering efficiency is low, and error is big, and keyway machining accuracy is low, and efficiency is low not
Foot.
Technical solution adopted in the utility model is：A kind of oil pumping machine crank drawing splined arrangement, including crank；Under crank
End is equipped with pedestal, and support base is connected with pedestal, and for support base equipped with locating shaft, locating shaft penetrates crank pin hole, locating shaft from
One end that crank pin hole stretches out connects locking nut and is locked by locking nut, and tensioner is housed between locating shaft and crank pin hole
Set, the reducer output shaft connecting hole of crank is interior to be arranged mandrel, and mandrel is connected with broaching machine, and keyway, key are provided in mandrel axial direction
Adjusting pad is equipped in slot, the center of all crank pin holes in the key slot center and crank is on the same line.
Support base is bolted on pedestal.
Quick change gasket is set on the inside of locking nut, and quick change gasket is sleeved on locating shaft.
The internal taper hole of expansion sleeve is matched with the outer conical surface of locating shaft, axially grooved on expansion sleeve.
The utility model has the beneficial effects that：The utility model realizes positioning and is not required to centering, and accurate positioning is convenient fast
Victory improves the machining accuracy and efficiency of crank keyway, and after crank is installed with retarder by wedge key, scissors poor index meet
GB/T29021-2012《Beam pumping unit》The requirement of standard.
Description of the drawings：
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the vertical view of Fig. 1.
Specific implementation mode：
As shown in Figure 1 and Figure 2, a kind of oil pumping machine crank draws splined arrangement, including crank 3；3 lower end of crank is equipped with pedestal 4,
Support base 5 is connected with pedestal 4, and support base 5 is equipped with locating shaft 6, and locating shaft 6 penetrates crank pin hole, and locating shaft 6 is from crank-pin
One end that hole is stretched out connects locking nut 9 and is locked by locking nut 9, and expansion sleeve is housed between locating shaft 6 and crank pin hole
7, the reducer output shaft connecting hole of crank 3 is interior to be arranged mandrel 1, and mandrel 1 is connected with broaching machine 10, and key is provided in 1 axial direction of mandrel
Slot, keyway is interior to be equipped with adjusting pad 2, and the one side on adjusting pad 2 is to face directly to contact with the keyway bottom surface on mandrel 1, on adjusting pad 2
Another side is 1：100 inclined-plane, contacts with broaching tool, ensures that the bottom surface of the keyway pulled out on crank is 1：100 inclined-planes；In the keyway
The center of all crank pin holes on the heart and crank 3 is on the same line.Locating shaft 6 and mandrel 1 on support base 5 play positioning
Effect.
Support base 5 is bolted on pedestal 4.
9 inside setting quick change gasket 8 of locking nut, quick change gasket 8 is sleeved on locating shaft 6.
The internal taper hole of expansion sleeve 7 is matched with the outer conical surface of locating shaft 6, axially grooved on expansion sleeve 7.Axial locking
When, expansion sleeve 7 can diameter rise outward, eliminate gap, with hole be fitted close, ensure positioning it is accurate.
When wire pulling method keyway, crank 3 is fixed on broaching machine and support base 5 by mandrel 1, locating shaft 6 and expansion sleeve 7
On, crank 3 is locked by quick change gasket 8 and locking nut 9；One side on adjusting pad 2 is to face directly and the keyway bottom on mandrel 1
Face contacts, and the another side on adjusting pad 2 is 1：100 inclined-plane, contacts with broaching tool, ensures that the bottom surface of the keyway pulled out on crank is
1：100 inclined-planes；Broaching feeding is realized by replacing the quantity of one group of gasket, be finally reached size requirement when broaching.
It is understood that above with respect to the specific descriptions of the utility model, it is merely to illustrate the utility model and is not
It is limited to technical solution described in the utility model embodiment, it will be understood by those of ordinary skill in the art that, it still can be with
It modifies to the utility model or equivalent replacement, to reach identical technique effect；Needs are used as long as meeting, all in this reality
Within novel protection domain.
Claims (4)
1. a kind of oil pumping machine crank draws splined arrangement, including crank (3)；It is characterized in that：Crank (3) lower end is equipped with pedestal (4),
Support base (5) is connected with pedestal (4), and support base (5) is equipped with locating shaft (6), and locating shaft (6) penetrates crank pin hole, positions
Axis (6) is locked from one end that crank pin hole stretches out connection locking nut (9) and by locking nut (9), locating shaft (6) and crank
Expansion sleeve (7) is housed between pin hole, mandrel (1), mandrel (1) and broaching machine are set in the reducer output shaft connecting hole of crank (3)
(10) be connected, be provided with keyway in mandrel (1) axial direction, be equipped with adjusting pad (2) in keyway, the key slot center on crank (3)
The center of all crank pin holes is on the same line.
2. oil pumping machine crank described in accordance with the claim 1 draws splined arrangement, it is characterised in that：The support base (5) uses spiral shell
Bolt is fixed on pedestal (4).
3. oil pumping machine crank described in accordance with the claim 1 draws splined arrangement, it is characterised in that：On the inside of the locking nut (9)
Quick change gasket (8) is set, and quick change gasket (8) is sleeved on locating shaft (6).
4. oil pumping machine crank described in accordance with the claim 1 draws splined arrangement, it is characterised in that：The inner cone of the expansion sleeve (7)
Hole is matched with the outer conical surface of locating shaft (6), axially grooved on expansion sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820143622.3U CN207982422U (en) | 2018-01-29 | 2018-01-29 | A kind of oil pumping machine crank drawing splined arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820143622.3U CN207982422U (en) | 2018-01-29 | 2018-01-29 | A kind of oil pumping machine crank drawing splined arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207982422U true CN207982422U (en) | 2018-10-19 |
Family
ID=63821413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820143622.3U Active CN207982422U (en) | 2018-01-29 | 2018-01-29 | A kind of oil pumping machine crank drawing splined arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207982422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145540A (en) * | 2020-10-15 | 2020-12-29 | 中国石油天然气股份有限公司 | Flat plate combined crank and crank pin of oil pumping unit |
-
2018
- 2018-01-29 CN CN201820143622.3U patent/CN207982422U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145540A (en) * | 2020-10-15 | 2020-12-29 | 中国石油天然气股份有限公司 | Flat plate combined crank and crank pin of oil pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201016 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Address before: Building 3, Binhai Service Outsourcing Industrial Park, Binhai New Area, Tianjin 300457 Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. |