CN203542523U - Novel pumping unit crank pin bush extractor - Google Patents
Novel pumping unit crank pin bush extractor Download PDFInfo
- Publication number
- CN203542523U CN203542523U CN201320726188.9U CN201320726188U CN203542523U CN 203542523 U CN203542523 U CN 203542523U CN 201320726188 U CN201320726188 U CN 201320726188U CN 203542523 U CN203542523 U CN 203542523U
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- China
- Prior art keywords
- pumping unit
- block
- lining
- pole
- withdrawing device
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- Expired - Fee Related
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Abstract
The utility model relates to a novel pumping unit crank pin bush extractor which comprises a center rod. The right end of the center rod is connected with a nut, the left side of the nut is provided with a hollow jack, the hollow jack is driven through a power source, a gasket is arranged between the nut and the hollow jack, the left end of the center rod is provided with a blocking block, the left side of the hollow jack is provided with an ejection block, the ejection block is composed of two semi-cylinders which are connected through a buckle type structure, and the outer diameter of the ejection block is smaller than the outer diameter of a bush and larger than the inner diameter of the bush. The novel pumping unit crank pin bush extractor has the advantages of being convenient to use, high in efficiency and good in universality, and can be easily separated from a crank pin bush after detachment.
Description
Technical field
The utility model relates to mechanical field, relates to particularly a kind of new pumping unit crankpin bush withdrawing device.
Background technology
Existing oil pumper is in service in long-term production, and crank-pin and lining thereof can wear and tear, and easily causes crank-pin to become flexible, deviate from, and causes the running of oil pumper single armed, and left and right is unbalance causes walking beam on pumping units, tailing axle to break, and even causes oil pumper to turn over machine accident.Because crankpin bush is hidden in crank hole inwall, in conjunction with very tight, the more difficult discovery of damaged part, Renewal process is wasted time and energy, easily be left in the basket and be difficult for changing, can cause that newly to change crank-pin impaired once again because of lining damage, while therefore changing crank-pin, must change the potential safety hazard that crankpin bush could be eradicated crank-pin simultaneously.
The device of existing taking-up crankpin bush normally inserts the leading section of top cylinder in crank hole, allow it contact with crankpin bush inwall, in unloading process, effect due to external force, can make top cylinder leading section and crankpin bush become interference fit, cause after crankpin bush is dismantled the problem that crankpin bush is difficult separated with withdrawing device.In addition, the existing bushing device of getting is normally inserted in top cylinder in use and slides into installation site again and complete assembling from one end of center-pole, and center-pole is conventionally long, and therefore the bushing device length that expends time in is got in assembling, has inconvenient, the inefficient problem used.
Summary of the invention
The purpose of this utility model is to solve the problems of the technologies described above, provide a kind of easy to use, efficiency is high, versatility good and dismounting after and the segregative new pumping unit crankpin bush of crankpin bush withdrawing device.
The technical solution of the utility model is: a kind of new pumping unit crankpin bush withdrawing device, comprise center-pole, the right-hand member of described center-pole is connected with nut, the left side of described nut is provided with hollow jack, described hollow jack is driven by power source, between nut and hollow jack, be provided with pad, the left end of described center-pole is provided with block, the left side of described hollow jack is provided with jacking block, described jacking block is comprised of two semicircular ring cylinders that connect by fastening type structure, the outside dimension of described jacking block is less than the outside dimension of lining and is greater than the internal diameter size of lining.
By jacking block being located to lining outside, and the outside dimension of this jacking block is less than the outside dimension of lining and is greater than the internal diameter size of lining, make it not contact with lining inwall simultaneously, the jacking block causing due to External Force Acting in the time of can avoiding dismantling and lining interference fit, and make the lining problem difficult separated with withdrawing device.In addition, in order to facilitate the installation and removal of jacking block, can easily and fast lining be taken out, jacking block is designed to be comprised of two semicircular ring cylinders that connect by fastening type structure, during use, directly semicircular ring cylinder is buckled in to the installed position of jacking block on center-pole, can reduce the time of this new pumping unit of assembling crankpin bush withdrawing device, easy to use, efficiency is high, and by semicircular ring cylinder design being become different size can be applicable to retracting the lining of different size, versatility is good.
Preferably, a faying face of described semicircular ring cylinder is provided with at least one projection, has at least one corresponding with it groove on another faying face.
Preferably, the outside dimension of described jacking block is 2/3rds of Outer Diameter of lining size.
Preferably, the right side of described block is provided with support, and frame bottom has centre bore, and described support is enclosed within on center-pole by centre bore.
Preferably, the right side of described block is provided with the slide block that can slide on center-pole, on described slide block, is fixed with handle.
Further, the axis of described handle is vertical with the axis of slide block, and the outer end of handle is provided with annular knurl.
Preferably, described power source is hydraulic pump or air driven pump.
The beneficial effects of the utility model are: two semicircular ring cylinders that connect by fastening type structure, consist of by jacking block is designed to, do not contact with bush inside, can avoid and the difficult separated problem of lining, in addition the utility model oil pumping machine crank pin bush(ing) withdrawing device also have advantages of easy to use, efficiency is high, versatility good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment mono-.
Fig. 2 is the structural representation of the utility model embodiment bis-.
In figure, 1, center-pole, 2, handle, 3, lining, 4, power source, 5, pad, 6, nut, 7, hollow jack, 8, jacking block, 9, crank-pin, 10, slide block, 11, block, 12, support.
The specific embodiment
Referring to Fig. 1 and Fig. 2, new pumping unit crankpin bush withdrawing device of the present utility model, comprise center-pole 1, nut 6, pad 5, hollow jack 7, power source 4, jacking block 8, block 11, wherein, block is threaded connection at center-pole left end, and nut is arranged on the low order end of center-pole, and nut left side is provided with hollow jack, between nut and hollow jack, be provided with pad, the middle part of this hollow jack has through hole and is processed with internal thread and is connected with the external screw thread that center-pole approaches right-hand member.The left side of hollow jack is provided with jacking block, this jacking block contacts with lining 3 to be removed, and the outside dimension of jacking block is less than the outside dimension of lining and is greater than the internal diameter size of lining, particularly the outside dimension of jacking block be lining outside dimension 2/3rds, do not contact with lining inwall, the jacking block causing due to External Force Acting in the time of can avoiding dismantling and lining interference fit, and make the lining problem difficult separated with withdrawing device; In addition, this jacking block is comprised of two semicircular ring cylinders that connect by fastening type structure, semicircular ring cylinder faying face is provided with at least one projection particularly, on another faying face, have at least one corresponding with it groove, during use, directly semicircular ring cylinder is buckled in to the installed position of jacking block on center-pole, can reduce the time of this new pumping unit of assembling crankpin bush withdrawing device, easy to use, efficiency is high, and by semicircular ring cylinder design being become different size can be applicable to retracting the lining of different size, versatility is good.
In actual process of getting lining, the source that turns on the power, in embodiment of the present utility model, power source is hydraulic pump or air driven pump, it is controlled hollow jack and moves to the left, under the thrust of hollow jack, jacking block promotes lining and moves to the left, thereby realize lining, with the separated of crank-pin, lining is taken out, after lining takes out, close power source, buckle structure is untied and jacking block can be pulled down from center-pole, efficiency easy to use is high.
Referring to Fig. 1, in embodiment mono-, the right side of block is provided with support 12, and this support contacts with crank-pin 9, frame bottom has centre bore, by this centre bore, support casing is contained on center-pole, in getting the process of lining, this support can prevent that the left side of getting bushing device from rocking, and this novel bushing device of getting is played a supporting role.
Referring to Fig. 2, in embodiment bis-, the right side of block is provided with the slide block 10 that can slide on center-pole, is fixed with handle 2 on this slide block, and the axis of this handle is vertical with the axis that clashes into slide block particularly, and the outer end of handle is provided with annular knurl to facilitate assurance.In actual process of getting lining, turn on the power behind source, operator can hold handle sliding slider left rapidly, when slide block slides into stop location, slide block is blocked, and utilizes the impact between slide block and block, make center-pole produce pulling force left, thereby make lining except right side is subject to jacking block thrust left, be also subject to center-pole pulling force left, be more prone to make lining taking-up lining separated with crank-pin.
Although more than described the specific embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is to be limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection domain of the present utility model.
Claims (7)
1. a new pumping unit crankpin bush withdrawing device, comprise center-pole (1), the right-hand member of described center-pole (1) is connected with nut (6), the left side of described nut (6) is provided with hollow jack (7), described hollow jack (7) is driven by power source (4), between nut (6) and hollow jack (7), be provided with pad (5), the left end of described center-pole (1) is provided with block (11), it is characterized in that: the left side of described hollow jack (7) is provided with jacking block (8), described jacking block (8) is comprised of two semicircular ring cylinders that connect by fastening type structure, the outside dimension of described jacking block (8) is less than the outside dimension of lining (3) and is greater than the internal diameter size of lining (3).
2. new pumping unit crankpin bush withdrawing device as claimed in claim 1, is characterized in that: a faying face of described semicircular ring cylinder is provided with at least one projection, has at least one corresponding with it groove on another faying face.
3. new pumping unit crankpin bush withdrawing device as claimed in claim 1, is characterized in that: the outside dimension of described jacking block (8) is 2/3rds of lining (3) outside dimension.
4. the new pumping unit crankpin bush withdrawing device as described in as arbitrary in claims 1 to 3, it is characterized in that: the right side of described block (11) is provided with support (12), support (12) bottom has centre bore, and described support (12) is enclosed within on center-pole (1) by centre bore.
5. the new pumping unit crankpin bush withdrawing device as described in as arbitrary in claims 1 to 3, is characterized in that: the right side of described block (11) is provided with and can, at the upper slide block (10) sliding of center-pole (1), be fixed with handle (2) on described slide block (10).
6. new pumping unit crankpin bush withdrawing device as claimed in claim 5, is characterized in that: the axis of described handle (2) is vertical with the axis of slide block (10), and the outer end of handle (2) is provided with annular knurl.
7. new pumping unit crankpin bush withdrawing device as claimed in claim 1, is characterized in that: described power source (4) is hydraulic pump or air driven pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726188.9U CN203542523U (en) | 2013-11-18 | 2013-11-18 | Novel pumping unit crank pin bush extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726188.9U CN203542523U (en) | 2013-11-18 | 2013-11-18 | Novel pumping unit crank pin bush extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203542523U true CN203542523U (en) | 2014-04-16 |
Family
ID=50460690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726188.9U Expired - Fee Related CN203542523U (en) | 2013-11-18 | 2013-11-18 | Novel pumping unit crank pin bush extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203542523U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227653A (en) * | 2014-09-16 | 2014-12-24 | 沈阳飞机工业（集团）有限公司 | Tool for disassembling oppositely pressed shoulder bushings and method for disassembling oppositely pressed shoulder bushings |
| CN108994582A (en) * | 2018-08-13 | 2018-12-14 | 中车青岛四方机车车辆股份有限公司 | A kind of axle press-loading apparatus and pressing method |
| CN109895022A (en) * | 2017-12-07 | 2019-06-18 | 中冶宝钢技术服务有限公司 | A kind of dismounting of rolling mill main motor safety pin and replacing options |
| CN112476324A (en) * | 2020-10-30 | 2021-03-12 | 江西昌河航空工业有限公司 | Bush extracting tool without supporting structure |
-
2013
- 2013-11-18 CN CN201320726188.9U patent/CN203542523U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227653A (en) * | 2014-09-16 | 2014-12-24 | 沈阳飞机工业（集团）有限公司 | Tool for disassembling oppositely pressed shoulder bushings and method for disassembling oppositely pressed shoulder bushings |
| CN104227653B (en) * | 2014-09-16 | 2016-01-20 | 沈阳飞机工业（集团）有限公司 | A kind of method that dismounting is overlapped belling shoulder piece the instrument of belling shoulder piece cover and dismounting |
| CN109895022A (en) * | 2017-12-07 | 2019-06-18 | 中冶宝钢技术服务有限公司 | A kind of dismounting of rolling mill main motor safety pin and replacing options |
| CN108994582A (en) * | 2018-08-13 | 2018-12-14 | 中车青岛四方机车车辆股份有限公司 | A kind of axle press-loading apparatus and pressing method |
| CN112476324A (en) * | 2020-10-30 | 2021-03-12 | 江西昌河航空工业有限公司 | Bush extracting tool without supporting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |