CN202833595U - Connetion assembly of harvester crank shaft and belt pulley - Google Patents
Connetion assembly of harvester crank shaft and belt pulley Download PDFInfo
- Publication number
- CN202833595U CN202833595U CN 201220344352 CN201220344352U CN202833595U CN 202833595 U CN202833595 U CN 202833595U CN 201220344352 CN201220344352 CN 201220344352 CN 201220344352 U CN201220344352 U CN 201220344352U CN 202833595 U CN202833595 U CN 202833595U
- Authority
- CN
- China
- Prior art keywords
- belt pulley
- crank shaft
- harvester
- neck
- bent axle
- Prior art date
- 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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Abstract
The utility model discloses a connection assembly of a harvester crank shaft and a belt pulley. The connection assembly of the harvester crank shaft and the belt pulley comprise a crank shaft, wherein a curved neck is arranged at the front end of the crank shaft, outer threads are arranged on the outer wall of the curved neck, a compression nut is installed on the curved neck in a matched mode, the belt pulley is installed on the curved neck in a pressing mode, and a compression pad is arranged between the compression nut and the belt pulley. The connection assembly of the harvester crank shaft and the belt pulley improve intensity of the crank shaft, eliminate source of fatigue, improve fatigue intensity of the crank shaft and avoid the phenomenon of cracking of the front end of the crank shaft when a diesel engine works under a larger loading condition.
Description
Technical field
The utility model relates generally to the diesel engine field, specifically a kind of bent axle that improves the crankshaft front end structure.
Background technique
The diesel engine of prior art (corn harvester) bent axle, front end is equipped with a big belt pulley, reaper walking power and corn thin skin mechanism power are provided, and it is larger to load, and crankshaft front end is thinner, intensity is lower, there is the tapped hole of a M24 at the crankshaft front end center simultaneously, has reduced the intensity of bent axle, and tapped hole easily produces the stress concentration phenomenon, reduce the fatigue strength of bent axle, caused the fracture of crankshaft of diesel engine front end.
The model utility content
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of crankshaft front end structure that is simple and easy to process to be provided.It has improved the intensity of the bent neck of crankshaft front end, has eliminated tired source, has improved the fatigue strength of bent axle, and the phenomenon of crankshaft front end fracture occurs when having avoided diesel engine to work in the larger situation of load.
The utility model technical solution problem provides following scheme:
The connection part of a kind of reaper bent axle and belt pulley comprises bent axle, it is characterized in that: described crankshaft front end is provided with bent neck, and the outer wall of described bent neck is provided with outside thread, cooperates on the described bent neck gland nut is installed, and is pressed with belt pulley on the described bent neck.
Be provided with the compression cushion block between described gland nut and the belt pulley.
The utility model is achieved through the following technical solutions:
1. the bent neck of crankshaft front end to Φ 50mm, improves crankshaft strength by original Φ 45mm overstriking.
2. the tapped hole of cancellation center M24 improves crankshaft strength, eliminates tired source, improves crankshaft fatigue strength.
3. increase the outside thread of M30, strengthen screw-down torque, improve the ability of bent axle output torque.
The utility model has the advantages that:
The utility model has improved the intensity of bent axle, has eliminated tired source, has improved crankshaft fatigue strength, and the phenomenon of crankshaft front end fracture occurs when having avoided diesel engine to work in the larger situation of load.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, the connection part of a kind of reaper bent axle and belt pulley, comprise bent axle 1, described bent axle 1 front end is provided with bent neck 2, the outer wall of described bent neck 2 is provided with outside thread 3, cooperate on the described bent neck 2 gland nut 4 is installed, be pressed with belt pulley 5 on the described bent neck 2, be provided with between described gland nut 4 and the belt pulley 5 and compress cushion block 6.
Claims (2)
1. the connection part of a reaper bent axle and belt pulley comprises bent axle, and it is characterized in that: described crankshaft front end is provided with bent neck, and the outer wall of described bent neck is provided with outside thread, cooperates on the described bent neck gland nut is installed, and is pressed with belt pulley on the described bent neck.
2. the connection part of described reaper bent axle and belt pulley according to claim 1 is characterized in that: be provided with the compression cushion block between described gland nut and the belt pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344352 CN202833595U (en) | 2012-07-16 | 2012-07-16 | Connetion assembly of harvester crank shaft and belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344352 CN202833595U (en) | 2012-07-16 | 2012-07-16 | Connetion assembly of harvester crank shaft and belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833595U true CN202833595U (en) | 2013-03-27 |
Family
ID=47945308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220344352 Expired - Fee Related CN202833595U (en) | 2012-07-16 | 2012-07-16 | Connetion assembly of harvester crank shaft and belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833595U (en) |
-
2012
- 2012-07-16 CN CN 201220344352 patent/CN202833595U/en not_active Expired - Fee Related
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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: 20130327 Termination date: 20150716 |
|
| EXPY | Termination of patent right or utility model |