CN201246419Y - Hydraulic pump splined spindle connecting apparatus - Google Patents
Hydraulic pump splined spindle connecting apparatus Download PDFInfo
- Publication number
- CN201246419Y CN201246419Y CNU2008200144436U CN200820014443U CN201246419Y CN 201246419 Y CN201246419 Y CN 201246419Y CN U2008200144436 U CNU2008200144436 U CN U2008200144436U CN 200820014443 U CN200820014443 U CN 200820014443U CN 201246419 Y CN201246419 Y CN 201246419Y
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- CN
- China
- Prior art keywords
- spline
- hydraulic pump
- shaft
- splined shaft
- head
- 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 - Lifetime
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A spline shaft connecting device of a hydraulic pump relates to an improvement on the spline shaft structure of a hydraulic pump of a crane, and solves the defect that the whole machine is useless caused by the original spline shaft which is abraded and can not be repaired. The spline shaft connecting device of the hydraulic pump is characterized in that an inner threaded hole is formed at an end head of the spline shaft, a spline transition shaft head is mounted in the inner threaded hole, a threaded shaft is formed at one end of the spline transition shaft head, and a spline shaft is formed at the other end of the spline transition shaft head. The utility model has the advantages that the maintenance is convenient after the spline transition shaft head is abraded, the service lives of the spline and the whole equipment can be prolonged, and the production cost can be reduced.
Description
Technical field: the invention is the improvement to hoist oil hydraulic pump spline shaft structure.
Background technique: splined shaft connection gear, gear connects coupling, and splined shaft should only bear moment of torsion under normal transmission situation, but the circumferential revolution that can bear small gear at engine start with when stopping is impacted, in the high speed rotary process, if the gear dynamic balancing is bad, will cause circular runout, splined shaft is produced radial impact, cause the spline on the splined shaft can produce serious wearing and tearing, can make the coupling damping effect bad, in case break down, maintenance difficulty is big.
Summary of the invention: the purpose of the invention provides a kind of oil hydraulic pump splined shaft connection set easy to maintenance; The purpose of the invention is to realize by following technological scheme: oil hydraulic pump splined shaft connection set, it is characterized in that making interior threaded hole in the splined shaft termination, spline transition spindle nose is installed in interior threaded hole, and the first end of spline transition axis is made a thread spindle, and an end is made splined shaft.
The advantage of the invention: original structure is that splined shaft directly is connected with gear, gear is connected with coupling, structure after the improvement is to connect spline transition spindle nose on splined shaft, spline transition spindle nose is connected with coupling, after the spline on the spline transition spindle nose decreases,, easy to maintenance as long as spline transition spindle nose is pulled down the spline transition spindle nose that renews, be unlikely to make whole equipment scrapping, reduced cost of production.
Description of drawings:
Fig. 1 is an oil hydraulic pump splined shaft connection set structure separated state schematic representation;
Fig. 2 is an oil hydraulic pump splined shaft connection set structural representation.
Among the figure: 1, the excessive spindle nose 2 of spline, splined shaft
Embodiment: oil hydraulic pump splined shaft connection set, it is characterized in that making interior threaded hole in the splined shaft termination, spline transition spindle nose is installed in interior threaded hole, the first end of spline transition axis is made a thread spindle, and an end is made splined shaft.
Spline transition spindle nose and splined shaft are by being threaded, and disassemble or assemble are convenient, the spline wearing and tearing on spline transition spindle nose, as long as more renew.Spline transition spindle nose selects for use 38CrMuAl to make, this material hardness height, and the wear resistance height, anti-contact load ability is better, and good bending fatigue strength is arranged, well block resistance.In order to improve fatigue strength, spline transition spindle nose is carried out surface peening, the surface rockwell hardness after the processing reaches HRC62.
Claims (1)
1, oil hydraulic pump splined shaft connection set is characterized in that making interior threaded hole in the splined shaft termination, and spline transition spindle nose is installed in interior threaded hole, and the first end of spline transition axis is made a thread spindle, and an end is made splined shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200144436U CN201246419Y (en) | 2008-07-24 | 2008-07-24 | Hydraulic pump splined spindle connecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200144436U CN201246419Y (en) | 2008-07-24 | 2008-07-24 | Hydraulic pump splined spindle connecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246419Y true CN201246419Y (en) | 2009-05-27 |
Family
ID=40730241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200144436U Expired - Lifetime CN201246419Y (en) | 2008-07-24 | 2008-07-24 | Hydraulic pump splined spindle connecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246419Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757131A (en) * | 2016-04-19 | 2016-07-13 | 哈尔滨东安发动机（集团）有限公司 | Method for repairing spline abrasion |
-
2008
- 2008-07-24 CN CNU2008200144436U patent/CN201246419Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757131A (en) * | 2016-04-19 | 2016-07-13 | 哈尔滨东安发动机（集团）有限公司 | Method for repairing spline abrasion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |
|
| CX01 | Expiry of patent term |