CN204295463U - Crankshaft of diesel engine burnishing device - Google Patents
Crankshaft of diesel engine burnishing device Download PDFInfo
- Publication number
- CN204295463U CN204295463U CN201420385588.2U CN201420385588U CN204295463U CN 204295463 U CN204295463 U CN 204295463U CN 201420385588 U CN201420385588 U CN 201420385588U CN 204295463 U CN204295463 U CN 204295463U
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- Prior art keywords
- crankshaft
- abrasive band
- special runner
- crankshaft journal
- diesel engine
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a kind of crankshaft of diesel engine burnishing device, comprise air grinder, be fixed on special runner in air grinder rotating shaft and abrasive band circle, abrasive band circle grinding face is enclosed within crankshaft journal and special runner inwardly.The utility model structure is simple, cost is low, only need enclose and a special runner in air grinder, a grinding face abrasive band inwardly, drive the speed difference between special runner High Rotation Speed and lathe driving crank low speed rotation by compressed air-driven air grinder, drive abrasive band circle around crankshaft journal and special runner high-speed rotation; Utilize the abrasive band circle being included in half crankshaft journal surface to contact the face of crankshaft journal, polishing is carried out to crankshaft journal, substantially increases polishing efficiency and polishing effect is remarkable.
Description
Technical field
The utility model relates to a kind of crankshaft journal surface processing unit (plant), and particularly a kind of burnishing device for crankshaft of diesel engine axle journal, belongs to metal cutting process technical field.
Background technology
Crankshaft of diesel engine is the vital part of diesel engine, bear the rotary motion rectilinear motion of connecting rod being transferred to crankshaft of diesel engine, relatively rotating of high load capacity is there is between the bearing shell of small end and crankshaft of diesel engine axle journal, to crankshaft of diesel engine journal surface except having higher surface roughness requirements, also has higher Geometrical Tolerance Principle.There is chatter mark in the crankshaft journal surface after grinding, cannot reach required Geometrical Tolerance Principle, polishing processing method must be adopted to remove chatter mark, could meet the Geometrical Tolerance Principle of crankshaft of diesel engine.
The Chinese utility model patent of CN201579683 discloses a kind of belt sander for crankshaft journal polishing, this belt sander comprises front pedestal, framework and rear pedestal, front pedestal is connected by framework with rear pedestal, front pedestal is provided with abrasive band tensioning apparatus, abrasive band drive unit is arranged on rear pedestal, endless abrasive belt one end outwardly, cutting face is enclosed within the driven pulley on front pedestal, and the other end is enclosed within the driving wheel of rear pedestal.During use, the endless abrasive belt of high-speed mobile is near the bent axle rotated, utilize the crankshaft journal that the linear contact lay polishing of the grinding face outside endless abrasive belt and crankshaft journal rotates, under the condition that removal surplus is very little, make the surface roughness of crankshaft journal reach Ra0.02 rapidly.But this belt sander complex structure and heavy, uses also inconvenient; During grinding crankshaft journal, the linear contact lay of grinding face and crankshaft journal outside endless abrasive belt can only be utilized to carry out polishing to it, and operating efficiency is lower.
Utility model content
The purpose of this utility model is to provide the crankshaft of diesel engine axle journal burnishing device that a kind of structure is simple, cost is low, and operation is very easy, efficiency is high and can reach requirement on machining accuracy very well.
The utility model is achieved by the following technical programs:
A kind of crankshaft of diesel engine burnishing device, comprise air grinder, special runner and abrasive band circle, air grinder rotating shaft is fixedly connected with special runner, and abrasive band circle grinding face is enclosed within crankshaft journal and special runner inwardly.
The purpose of this utility model can also be realized further by following technical measures.
Aforesaid crankshaft of diesel engine burnishing device, wherein said special runner is that cast aluminium material is made.
Aforesaid crankshaft of diesel engine burnishing device, wherein said abrasive band circle material is common aluminum oxide sandpaper.
The utility model structure is simple, cost is low, only need enclose and a special runner in air grinder, a grinding face abrasive band inwardly, drive the speed difference between special runner High Rotation Speed and lathe driving crank low speed rotation by compressed air-driven air grinder, drive abrasive band circle around crankshaft journal and special runner high-speed rotation; Utilize the abrasive band circle being included in half crankshaft journal surface to contact the face of crankshaft journal, carry out polishing to crankshaft journal, compared to the linear contact lay polishing of prior art, the utility model substantially increases polishing efficiency and Be very effective.
Advantage and disadvantage of the present utility model, carries out figure explanation, these embodiments by the non-limitative illustration by preferred embodiment below, only provides as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model to the polishing of crankshaft of diesel engine axle journal;
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model comprises air grinder 1, special runner 2 and abrasive band circle 3, and air grinder rotating shaft 11 is fixedly connected with special runner 2, and abrasive band is enclosed 3 grinding faces and is enclosed within inwardly on crankshaft journal 41 and special runner 2.Special runner 2 is made for cast aluminium material, lighter weight, hand-held pneumatic abrasive machine 1 rapid operation.The material of abrasive band circle 3 is common aluminum oxide sandpaper, and polishing effect is good.It is 20mm that 3 width are enclosed in the abrasive band of the present embodiment, and the wheel well width of special runner 2 is 25mm, and compressed air pressure reaches 0.6MPa.
Polishing process is as follows:
1) special runner 2 is fixed on air grinder 1;
2) first grinding face abrasive band inwardly being enclosed 3 one end is enclosed within a crankshaft journal 41, then being clamped respectively at bent axle 4 two ends is bearing on lathe, abrasive band being enclosed 3 other ends is enclosed within special runner 2 again, and hand-held pneumatic abrasive machine 1 is firmly outer to be drawn, and makes abrasive band enclose 3 and is remaining on tensioning state;
3) start lathe, bent axle 4 keeps slowly running; Open air grinder 1 switch, special runner 2 high-speed rotation, thus 3 flexing shaft necks 41 are enclosed in drive abrasive band and special runner 2 rotates, hand-held pneumatic abrasive machine 1 drives abrasive band to enclose 3 and moves along crankshaft journal 41 axial reciprocating, until crankshaft journal 41 reaches requirement on machining accuracy.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (3)
1. a crankshaft of diesel engine burnishing device, is characterized in that, comprise air grinder, special runner and abrasive band circle, air grinder rotating shaft is fixedly connected with special runner, and abrasive band circle grinding face is enclosed within crankshaft journal and special runner inwardly.
2. crankshaft of diesel engine burnishing device as claimed in claim 1, it is characterized in that, described special runner is that cast aluminium material is made.
3. crankshaft of diesel engine burnishing device as claimed in claim 1, is characterized in that, described abrasive band circle material is common aluminum oxide sandpaper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385588.2U CN204295463U (en) | 2014-07-14 | 2014-07-14 | Crankshaft of diesel engine burnishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385588.2U CN204295463U (en) | 2014-07-14 | 2014-07-14 | Crankshaft of diesel engine burnishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204295463U true CN204295463U (en) | 2015-04-29 |
Family
ID=53101041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420385588.2U Active CN204295463U (en) | 2014-07-14 | 2014-07-14 | Crankshaft of diesel engine burnishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204295463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084865A (en) * | 2014-07-14 | 2014-10-08 | 中船动力有限公司 | Polishing device and method for diesel engine crankshaft |
-
2014
- 2014-07-14 CN CN201420385588.2U patent/CN204295463U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084865A (en) * | 2014-07-14 | 2014-10-08 | 中船动力有限公司 | Polishing device and method for diesel engine crankshaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |
|
| CP03 | Change of name, title or address |