CN202702186U - Hammer bent axle structure - Google Patents
Hammer bent axle structure Download PDFInfo
- Publication number
- CN202702186U CN202702186U CN 201220403614 CN201220403614U CN202702186U CN 202702186 U CN202702186 U CN 202702186U CN 201220403614 CN201220403614 CN 201220403614 CN 201220403614 U CN201220403614 U CN 201220403614U CN 202702186 U CN202702186 U CN 202702186U
- Authority
- CN
- China
- Prior art keywords
- bent axle
- hammer
- axle structure
- needle bearing
- bearing
- 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
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses an electric hammer bent axle structure. The hammer bent axle structure comprises a shell, a cylinder liner with a hammer head inside, a hammer head piston rod and a crankshaft of a motor drive. The electric hammer bent axle structure is characterized in that the bent axle is provided with a ball bearing and a needle bearing in sleeved manner, and the needle bearing is arranged an the lower end of the bent axle. The hammer bent axle structure has a reasonable construction, a good performance and a long service life.
Description
Technical field
The utility model relates to a kind of hammer crank mechanism.
Background technology
Be subjected to the restriction in one-level wheel space, existing electric hammer selects the bent axle lower bearing can only select the 688-2Z ball bearing, because impulsive force is large, bearing bears changeable load, so bearing very easily damages, and causes other damage of components.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, the hammer crank mechanism of favorable working performance, electric hammer long service life.
Technical solution of the present utility model is:
A kind of electric hammer crank mechanism comprises that housing, inside arrange the cylinder sleeve of tup, and the hammer piston connecting rod is connected with motor-driven bent axle, it is characterized in that: suit ball bearing and needle bearing on the bent axle, needle bearing is positioned at the lower end of bent axle.
The utility model is rational in infrastructure, has increased a needle bearing, greatly improves service life.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of an embodiment of the utility model.
The specific embodiment
A kind of electric hammer crank mechanism comprises that housing, inside arrange the cylinder sleeve 1 of tup, and hammer piston connecting rod 5 is connected with motor-driven bent axle 2, suit ball bearing 3 and needle bearing 4 on the bent axle, and needle bearing is positioned at the lower end of bent axle.
Claims (1)
1. an electric hammer crank mechanism comprises that housing, inside arrange the cylinder sleeve of tup, and the hammer piston connecting rod is connected with motor-driven bent axle, it is characterized in that: suit ball bearing and needle bearing on the bent axle, needle bearing is positioned at the lower end of bent axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403614 CN202702186U (en) | 2012-08-15 | 2012-08-15 | Hammer bent axle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403614 CN202702186U (en) | 2012-08-15 | 2012-08-15 | Hammer bent axle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202702186U true CN202702186U (en) | 2013-01-30 |
Family
ID=47582525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220403614 Expired - Fee Related CN202702186U (en) | 2012-08-15 | 2012-08-15 | Hammer bent axle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202702186U (en) |
-
2012
- 2012-08-15 CN CN 201220403614 patent/CN202702186U/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: 20130130 Termination date: 20140815 |
|
| EXPY | Termination of patent right or utility model |