CN209903099U - Pull claw type crank pin gasket puller - Google Patents
Pull claw type crank pin gasket puller Download PDFInfo
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- CN209903099U CN209903099U CN201920614450.8U CN201920614450U CN209903099U CN 209903099 U CN209903099 U CN 209903099U CN 201920614450 U CN201920614450 U CN 201920614450U CN 209903099 U CN209903099 U CN 209903099U
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Abstract
The utility model belongs to the technical field of the crank pin gasket appurtenance is pulled out to beam-pumping unit, especially, relate to a draw claw formula crank pin gasket puller, draw the claw including connecting rod, jackscrew, fixed drawing claw and moving about, the both ends difference rigid coupling of connecting rod has the silk braid, the jackscrew have two, threaded connection is in two silk braids respectively, fixed drawing claw and moving about draw the claw and be L type turning structure, fixed drawing claw and moving about draw the claw all to concatenate on the connecting rod, two turning end are kept away from mutually, fixed drawing claw and moving about are connected with the spring between drawing the claw, the both ends of spring respectively with fixed drawing claw and moving about draw the claw rigid coupling, two silk braids, two jackscrews, fixed drawing claw and the axis that moves about and draw the claw in the coplanar. The utility model provides a problem of crank pin gasket extraction difficulty, improved work efficiency, reduce working strength, solve the potential safety hazard, have very high economic and social value, can popularize and apply on a large scale.
Description
Technical Field
The utility model belongs to the technical field of the crank pin gasket appurtenance is pulled out to beam-pumping unit, especially, relate to a draw claw formula crank pin gasket puller.
Background
During the production operation of the pumping unit well, the work of pulling out the crank pin gasket is needed for replacing the crank pin and adjusting the stroke of the pumping unit, and the work proportion for replacing the crank pin is high during the maintenance work of the pumping unit. The oil pumping unit is long in service time, the pin gasket is damaged, rusted, seriously polluted and the like, so that pulling is very laborious, 3 workers are needed to cooperate to complete the work when the crank pin gasket is disassembled, two workers need to stand on a working platform outside a crank, one worker holds a pry bar to align the gasket, one worker holds a hammer to knock the tail of the pry bar, and the worker standing on the inner side of the crank carries out the work of calibrating the positions of the pry bar head and the crank pin gasket; three workers are matched and knock with a hammer to work, so that the possibility of causing work injury is provided; meanwhile, the labor intensity is high, the disassembling work is long, and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
For solving the problem that the crank pin gasket is difficult to extract among the background art, the utility model provides a draw claw formula crank pin gasket puller, the utility model discloses possess safe risk low, low in labor strength, characteristics that work efficiency is high.
The utility model provides a technical scheme is: the utility model provides a draw claw formula crank pin gasket puller, includes crank pin gasket and crank pin cover, and the two all suit is downthehole in the crank pin, the utility model discloses still include connecting rod, jackscrew, fixed claw and the claw that draws that moves about, the both ends difference rigid coupling of connecting rod has the silk braid, the jackscrew have two, threaded connection is in two silk braids respectively, fixed claw and the claw that draws that moves about be L type turning structure, fixed claw and the claw that draws that moves about all concatenate on the connecting rod, two turning end are kept away from mutually, fixed claw and connecting rod fixed connection, move about claw and connecting rod sliding connection, fixed claw and the claw that draws that moves about between be connected with the spring, the both ends of spring respectively with fixed claw and the claw rigid coupling that draws that moves about, two silk braids, fixed claw and the axis that draws the claw and the claw that moves about in the coplanar.
The fixed pulling claw and the moving pulling claw respectively comprise an upright post and a claw, the front part of the claw is in a circular arc shape, the upright posts are in semi-cylindrical shapes, and the plane sides of the two semi-cylindrical upright posts are close to each other; the thickness of the front end of the claw is smaller than that of the rear end; the connecting rod, the jackscrew, the fixed pull claw, the movable pull claw and the screw sleeve are all made of No. 45 steel and are quenched; the jackscrew is a standard component.
The utility model has the advantages that:
1. the utility model discloses simple structure, low in cost, the volume is less, convenient to carry, it is convenient to use. The working efficiency is improved, the working strength is reduced, the potential safety hazard is solved, the economic and social values are high, and the method can be popularized and applied on a large scale.
2. The utility model discloses application scope is wide, is applicable to the work of various model beam-pumping units pulling out crank pin gasket.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the middle floating pull claw or the fixed pull claw of the present invention.
In the figure: 1-top thread. 2-wire sleeve, 3-floating pull claw, 4-spring, 5-fixed pull claw, 6-crank pin gasket, 7-crank pin sleeve, 8-connecting rod, 9-upright post and 10-claw.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
combine the attached drawing, the utility model discloses a crank pin gasket 6 and crank pin sub-cover 7, the two all suit are downthehole in the crank pin, have certain clearance between the two, and crank pin gasket 6 is difficult to take out in the reality.
The utility model discloses an innovation point lies in: including connecting rod 8, jackscrew 1, fixed draw claw 5, move about and draw claw 3 and spring 4, the both ends of connecting rod 8 rigid coupling respectively have silk braid 2, jackscrew 1 have two, threaded connection is in two silk braids 2 respectively, the bottom top of jackscrew 1 is on the crank, rotatory jackscrew 1 can lift connecting rod 8.
The fixed pulling claw 5 and the moving pulling claw 3 are both of an L-shaped corner structure, the fixed pulling claw 5 and the moving pulling claw 3 are both connected on a connecting rod 8 in series, two corner ends are far away, the fixed pulling claw 5 is fixedly connected with the connecting rod 8, the moving pulling claw 3 is in sliding connection with the connecting rod 8, a spring 4 is connected between the fixed pulling claw 5 and the moving pulling claw 3, two ends of the spring 4 are respectively fixedly connected with the fixed pulling claw 5 and the moving pulling claw 3, the moving pulling claw 3 has a trend of being far away from the fixed pulling claw 5 under the elastic force action of the spring 4, when in use, the two pulling claws extend into a gap between a crank pin gasket 6 and a crank pin sleeve 7, the elastic potential energy of the spring 4 ensures that the two pulling claws are abutted against a crank pin, the fixed pulling claw 5 and the moving pulling claw 3 both comprise an upright column 9 and a claw 10, the front part of the claw 10 is in a circular arc shape, and ensures that the claw 10 is in contact with the crank pin gasket 6 as large as possible when bearing the crank pin gasket, the increase of the stress area is beneficial to preventing the claw 10 from being damaged by stress; the vertical columns 9 are in semi-cylindrical shapes, the plane sides of the two semi-cylindrical vertical columns 9 are close to each other, and the design has two functions, one is that the space between the fixed pull claw 5 and the moving pull claw 3 is favorably reduced as much as possible, and the requirement of pulling out the crank pin gasket 6 of the minimum-model oil pumping unit is met; secondly, when the cambered surface of the upright post 9 contacts with the inner wall of the crank pin gasket 6, the contact part is attached as far as possible, so that the claw 10 is deeper when penetrating into the gap between the crank pin gasket 6 and the crank pin sleeve 7, the whole claw 10 is utilized, and the claw 10 is prevented from being overlong.
The axes of the two wire sleeves 2, the two jackscrews 1, the fixed pull claw 5 and the moving pull claw 3 are on the same plane, so that the directions of the drawing process are consistent.
Cut claw 10 along claw 10 thickness direction, claw 10 cross-section is right trapezoid, and the front end thickness of claw 10 is less than rear end thickness, and it is convenient more during the use to insert claw 10 in the clearance of crank pin gasket 6 and crank pin sleeve 7.
The connecting rod 8, the jackscrew 1, the fixed pull claw 5, the moving pull claw 3 and the screw sleeve 2 are all made of No. 45 steel and are quenched, so that the hardness and the strength of the part are improved after quenching, and the part is not easy to deform.
The jackscrew 1 is a standard part, and a worker can conveniently unscrew the jackscrew by using a common standard tool.
The utility model discloses a use is:
1. firstly, the fixed pulling claw 5 is inserted into a side gap between the crank pin sleeve 7 and the crank pin gasket 6.
2. The spring 4 is compressed along the direction of the connecting rod 8, the distance between the fixed pull claw 5 and the moving pull claw 3 is reduced, and the moving pull claw 3 is inserted into the gap at the other side between the crank pin sleeve 7 and the crank pin gasket 6, so that the fixed pull claw 5 and the moving pull claw 3 can completely support the crank pin gasket 6 because the moving pull claw 3 has the trend of being far away from the fixed pull claw 5 under the elastic force action of the spring 4.
3. After the jackscrews 1 at two ends of the connecting rod 8 are screwed by a spanner, the connecting rod 8 and the two pulling claws are driven to move outwards after the jackscrews 1 are stressed, and the crank pin gasket 6 is pulled out.
The utility model discloses simple structure, low in cost, the volume is less, convenient to carry, convenient to use swings sledgehammer operation with the tradition high altitude and compares, and the participation operation personnel are few, and factor of safety promotes by a wide margin, and work efficiency promotes by a wide margin. And simultaneously, the utility model discloses a two draw and connect through spring 4 between the claw, two draw the nimble adaptation of claw interval, make the utility model is suitable for a work of pulling out crank pin gasket 6 is carried out to various model beam-pumping units. Therefore, the utility model has high economic and social values and can be popularized and applied in a large scale.
Claims (5)
1. The utility model provides a draw claw formula crank pin gasket to pull out ware, includes crank pin gasket (6) and crank pin sub-cover (7), and the two all suit is downthehole in the crank pin, its characterized in that: also comprises a connecting rod (8), a jackscrew (1), a fixed pull claw (5) and a movable pull claw (3), two ends of the connecting rod (8) are respectively fixedly connected with a screw sleeve (2), two jackscrews (1) are respectively in threaded connection with the two screw sleeves (2), the fixed pulling claw (5) and the moving pulling claw (3) are both of L-shaped corner structures, the fixed pulling claw (5) and the moving pulling claw (3) are both connected on a connecting rod (8) in series, two corner ends are far away, the fixed pulling claw (5) is fixedly connected with the connecting rod (8), the moving pulling claw (3) is connected with the connecting rod (8) in a sliding way, a spring (4) is connected between the fixed pulling claw (5) and the moving pulling claw (3), two ends of the spring (4) are respectively fixedly connected with the fixed pull claw (5) and the movable pull claw (3), the axes of the two wire sleeves (2), the two jackscrews (1), the fixed pull claw (5) and the movable pull claw (3) are in the same plane.
2. A pull pawl crank pin shim puller as set forth in claim 1, wherein: the fixed pulling claw (5) and the moving pulling claw (3) comprise an upright post (9) and a claw (10), the front part of the claw (10) is in a circular arc shape, the upright post (9) is in a semi-cylindrical shape, and the plane sides of the two semi-cylindrical upright posts (9) are close to each other.
3. A pull pawl crank pin shim puller as set forth in claim 2, wherein: the thickness of the front end of the claw (10) is smaller than that of the rear end.
4. A pull pawl crank pin shim puller as set forth in claim 1, wherein: the connecting rod (8), the jackscrew (1), the fixed pull claw (5), the moving pull claw (3) and the wire sleeve (2) are all made of No. 45 steel and are subjected to quenching treatment.
5. A pull pawl crank pin shim puller as set forth in claim 1, wherein: the jackscrew (1) is a standard component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920614450.8U CN209903099U (en) | 2019-04-30 | 2019-04-30 | Pull claw type crank pin gasket puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920614450.8U CN209903099U (en) | 2019-04-30 | 2019-04-30 | Pull claw type crank pin gasket puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209903099U true CN209903099U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920614450.8U Active CN209903099U (en) | 2019-04-30 | 2019-04-30 | Pull claw type crank pin gasket puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209903099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116000844A (en) * | 2022-12-28 | 2023-04-25 | 中国民用航空飞行学院 | Novel aircraft engine fan blade backing plate extracting tool |
-
2019
- 2019-04-30 CN CN201920614450.8U patent/CN209903099U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116000844A (en) * | 2022-12-28 | 2023-04-25 | 中国民用航空飞行学院 | Novel aircraft engine fan blade backing plate extracting tool |
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