CN209970605U - Special puller for crank arm pin of internal combustion locomotive - Google Patents
Special puller for crank arm pin of internal combustion locomotive Download PDFInfo
- Publication number
- CN209970605U CN209970605U CN201920130318.XU CN201920130318U CN209970605U CN 209970605 U CN209970605 U CN 209970605U CN 201920130318 U CN201920130318 U CN 201920130318U CN 209970605 U CN209970605 U CN 209970605U
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- CN
- China
- Prior art keywords
- sleeve
- end surface
- crank arm
- pull
- arm pin
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- 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.)
- Expired - Fee Related
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A special puller for a crank arm pin of a diesel locomotive relates to the technical field of equipment maintenance of the diesel locomotive, in particular to a special puller suitable for the crank arm pin of the diesel locomotive. The device is characterized by comprising a top sleeve and a pull sleeve, wherein the upper end surface of the top sleeve is annular and is sleeved on a boss extending out of one end of a crank arm pin, and the upper part of the upper end surface of the top sleeve is contacted with the bottom surface of a crank arm pin mounting seat; the upper end surface of the pull sleeve is rectangular and is vertically arranged at the bottom of the upper end surface of the top sleeve, and the upper end surface of the pull sleeve is provided with a mounting hole corresponding to an inner screw hole arranged on a crank arm pin boss; two sides of the upper end surface of the top sleeve and the upper end surface of the pull sleeve respectively extend downwards to form two top sleeve supporting frames and two pull sleeve supporting frames, a jack is arranged between the two top sleeve supporting frames and between the lower end surface of the top sleeve and the lower end surface of the pull sleeve, the base is arranged on the lower end surface of the pull sleeve, and the extending end of the jack is connected with the lower end surface of the top sleeve and keeps a jacking state. The maintenance efficiency is improved, and the labor intensity of maintainers is reduced.
Description
Technical Field
The utility model relates to a diesel locomotive equipment maintenance technical field especially belongs to a special extractor suitable for diesel locomotive crank arm round pin.
Background
The traction force transmission of the diesel locomotive is mainly transmitted by a traction system of a bogie. The traction system consists of a bogie, a traction rod, a crank arm and a cross arm, wherein the crank arm is connected with the bogie through a crank arm pin, and the crank arm is disassembled and inspected and the crank arm pin is replaced according to the requirements of the intermediate repair process of the internal combustion locomotive. The traction force of the diesel locomotive is large (can reach 437KN to the maximum), the intermediate repair period is long (generally three years), and the crank arm pin is easy to wear and corrode in the use process, so that the crank arm pin is clamped in the crank arm pin mounting seat, and the difficulty in maintenance is caused.
Disclosure of Invention
An object of the utility model is to provide a special puller of diesel locomotive turning arm round pin promptly to reach the purpose that can pull out the turning arm round pin smoothly and change when repairing in the diesel locomotive.
The utility model provides a special puller for a crank pin of a diesel locomotive, which is characterized by comprising a top sleeve and a pull sleeve, wherein the upper end surface of the top sleeve is in a circular ring shape and is sleeved outside a boss extending out of one end of the crank pin, and the upper part of the upper end surface of the top sleeve is contacted with the bottom surface of a crank pin mounting seat; the upper end surface of the pull sleeve is rectangular and is vertically arranged at the bottom of the upper end surface of the top sleeve; the upper end surface of the pull sleeve is provided with a mounting hole corresponding to an inner screw hole arranged on the crank arm pin boss; two sides of the upper end surface of the top sleeve and the upper end surface of the pull sleeve respectively extend downwards to form a lower end surface of the top sleeve and a lower end surface of the pull sleeve between the two support frames of the top sleeve and the two support frames of the pull sleeve, and a jack is arranged between the lower end surface of the top sleeve and the lower end surface of the pull sleeve, wherein a base of the jack is arranged on the lower end surface of the pull sleeve, and the extending end of the jack is connected with the lower end surface of the top sleeve and keeps a jacking state.
Furthermore, the lower end face of the top sleeve adopts a rectangular contact surface or a circular contact surface.
Furthermore, the two top sleeve support frames are vertical or not vertical to the upper end surface of the top sleeve; the two pull sleeve support frames are vertical or not vertical to the upper end surface of the pull sleeve.
The special puller for the crank arm pin of the diesel locomotive, provided by the utility model, has the advantages that the pulling sleeve and the crank arm pin are fastened through two bolts of M16X50, and at the moment, the top sleeve between the pulling sleeve and the crank arm pin is tightly pressed on the crank arm pin mounting seat; A16T jack is arranged between the pull sleeve and the jacking sleeve, the extending end of the jack is tightly propped against the lower end face of the jacking sleeve, the bottom of the jack is fixed on the lower end face of the pull sleeve, the jack is pressed to enable the extending end of the jack to extend, a crank arm pin mounting seat at the upper end of the jacking sleeve is fixed, and a crank arm pin is driven by the extending action of the jack to downwards pull the crank arm pin through the pull sleeve connected with the crank arm pin, so that the crank arm pin can be pulled out. Therefore, the problem that the crank arm pin is not easy to replace during the middle repair of the diesel locomotive can be solved. To sum up, the utility model discloses have and improve maintenance efficiency, reduce maintainer intensity of labour's positive effect.
Drawings
The accompanying drawings partially disclose embodiments of the present invention, in which,
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a diagram illustrating an application state of the present invention;
fig. 3 is a schematic structural view of the crank pin of the present invention.
Detailed Description
As shown in fig. 1-3, the utility model provides a special extractor for crank arm pin of diesel locomotive, which comprises a top sleeve and a pull sleeve arranged below a crank arm pin mounting seat 1 of diesel locomotive. The upper end surface of the top sleeve is annular and is sleeved on a boss 3 extending out of one end of the crank arm pin 2, and the upper part of the upper end surface 4 of the top sleeve is contacted with the bottom surface of the crank arm pin mounting seat; the pull sleeve upper end face 5 is rectangular and is vertically arranged at the bottom of the top sleeve upper end face, in addition, inner screw holes 13 are respectively formed in two ends of a crank arm pin boss, two mounting holes 14 corresponding to the inner screw holes formed in the crank arm pin boss are formed in the pull sleeve upper end face, the bolt 6 sequentially penetrates through the pull sleeve upper end face and the circular hollow portion of the top sleeve upper end face and is matched with the fixing holes formed in the crank arm pin, the pull sleeve upper end face and the crank arm pin are connected and fixed, meanwhile, the top sleeve upper end face between the pull sleeve upper end face and the crank arm pin is arranged, and under the action of the bolt, the pull sleeve upper end face and the crank arm pin mounting seat bottom are contacted and pressed tightly.
Two top sleeve supporting frames 7 and two pull sleeve supporting frames 8 are respectively and downwards extended from two sides of the upper end surface of the top sleeve and the upper end surface of the pull sleeve, in a specific embodiment, the two top sleeve supporting frames and the two pull sleeve supporting frames can be respectively perpendicular to the upper end surface of the top sleeve and the upper end surface of the pull sleeve, of course, the two top sleeve supporting frames and the two pull sleeve supporting frames can also be respectively not perpendicular to the upper end surface of the top sleeve and the upper end surface of the pull sleeve, and therefore the contact area of the lower end surface of the top sleeve or the lower end surface of the pull sleeve can be increased by adopting a mode of downwards widening the lower end surface of the top sleeve and the lower end surface of the pull. The lower end face 9 of the jacking sleeve and the lower end face 10 of the pulling sleeve are respectively formed between the two jacking sleeve supporting frames and between the two pulling sleeve supporting frames, the jack 11 is installed between the lower end face of the jacking sleeve and the lower end face of the pulling sleeve, wherein the base of the jack is fixed on the lower end face of the pulling sleeve, the extending end 12 of the jack is connected with the lower end face of the jacking sleeve and keeps a jacking state, and particularly, the fixing of the base of the jack on the lower end face of the pulling sleeve or the connection between the extending end of the jack and the lower end face of the jacking sleeve can be realized by selecting a fixing mode of surface contact compression or jacking or a fixing mode of bolt or welding according to actual conditions. In addition, the jack in the technical scheme can be in other types, such as a hydraulic cylinder, an electric push rod, a pneumatic cylinder and the like, and the effect is the same.
In addition, in order to increase the contact area between the extension end of the jack and the lower end surface of the top sleeve, a circular contact surface is preferably adopted on the lower end surface of the top sleeve, and a rectangular contact surface can be adopted, so long as the rectangular contact surface is ensured to contain the effective contact area of the extension end of the jack.
Claims (3)
1. The special puller for the crank arm pin of the diesel locomotive is characterized by comprising a top sleeve and a pull sleeve, wherein the upper end surface (4) of the top sleeve is annular and is sleeved on a boss (3) extending out of one end of the crank arm pin (2), and the upper part of the upper end surface of the top sleeve is contacted with the bottom surface of a crank arm pin mounting seat (1); the upper end surface (5) of the pull sleeve is rectangular and is vertically arranged at the bottom of the upper end surface of the top sleeve, and the upper end surface of the pull sleeve is provided with a mounting hole (14) corresponding to an inner screw hole (13) formed on the crank arm pin boss; two sides of the upper end surface of the top sleeve and the upper end surface of the pull sleeve respectively extend downwards to form two top sleeve supporting frames (7) and two pull sleeve supporting frames (8), a lower end surface (9) of the top sleeve and a lower end surface (10) of the pull sleeve are formed between the two top sleeve supporting frames and between the two pull sleeve supporting frames, and a jack (11) is arranged between the lower end surface of the top sleeve and the lower end surface of the pull sleeve, wherein a base of the jack is arranged on the lower end surface of the pull sleeve, and an extending end (12) of the jack is connected with the lower end surface of the top sleeve and keeps a jacking state.
2. The extractor special for the crank pin of the diesel locomotive according to claim 1, wherein the lower end surface of the top sleeve adopts a rectangular contact surface or a circular contact surface.
3. The extractor special for the crank arm pin of the diesel locomotive according to claim 1, wherein the two ejector sleeve support frames are vertical or not vertical to the upper end surface of the ejector sleeve; the two pull sleeve support frames are vertical or not vertical to the upper end surface of the pull sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130318.XU CN209970605U (en) | 2019-01-25 | 2019-01-25 | Special puller for crank arm pin of internal combustion locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130318.XU CN209970605U (en) | 2019-01-25 | 2019-01-25 | Special puller for crank arm pin of internal combustion locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209970605U true CN209970605U (en) | 2020-01-21 |
Family
ID=69252440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920130318.XU Expired - Fee Related CN209970605U (en) | 2019-01-25 | 2019-01-25 | Special puller for crank arm pin of internal combustion locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209970605U (en) |
-
2019
- 2019-01-25 CN CN201920130318.XU patent/CN209970605U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 Termination date: 20210125 |