CN203477244U - Main transmission shaft structure of engine oil pump - Google Patents
Main transmission shaft structure of engine oil pump Download PDFInfo
- Publication number
- CN203477244U CN203477244U CN201320567434.0U CN201320567434U CN203477244U CN 203477244 U CN203477244 U CN 203477244U CN 201320567434 U CN201320567434 U CN 201320567434U CN 203477244 U CN203477244 U CN 203477244U
- Authority
- CN
- China
- Prior art keywords
- shaft
- oil pump
- main transmission
- transmission shaft
- driving
- 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
Images
Abstract
A main transmission shaft structure of an engine oil pump mainly solves the problems that an existing engine oil pump is difficult to assemble, and matching components are inconvenient to machine. The main transmission shaft structure is characterized in that a connecting shaft (4) is inserted in one end of a driving shaft (5), the driving shaft (5) is provided with a shaft neck (6) matched with a mounting hole in the sidewall of a pump shell, and a key groove (7) is formed in the sidewall of the driving shaft (5). According to the main transmission shaft structure, a split-type connection structure of a gear shaft and a transmission shaft is adopted, and accordingly the engine oil pump is easy to assemble, and the matching components are convenient to machine.
Description
Technical field
The utility model relates to a kind of oil pump parts, is specifically related to a kind of main transmission shaft structure of oil pump.
Background technique
Oil pump is for engine oil pressure being raise and guaranteeing that certain oil mass is to the device of each friction surface pressure fuel feeding, oil pump is mainly divided into gear type oil pump and rotor-type oil pump, gear type oil pump is wherein simple in structure, easy to process, reliable operation, long service life, pump oil pressure is high, is used widely.Gear type oil pump comprises pump case, driving gear and driven gear, driving gear is connected with external power supply by main drive shaft, with transmitting torque, make oil pump work, for some miniature gasoline engines, because overall structure is less, the structure space of oil pump is also restricted, conventionally driving gear and main drive shaft are processed into integral structure, gear shaft structure namely, because the diameter of gear is less, the external part of gear shaft is thinner, is not easy to be connected with outside transmission part, has that assembling difficulty is large, matching parts is processed inconvenient defect.
Model utility content
In order to overcome the large and matching parts of existing oil pump assembling difficulty, process inconvenient deficiency, the utility model provides a kind of main transmission shaft structure of oil pump, the main transmission shaft structure of this oil pump adopts gear shaft and transmission shaft Split connection structure, easily assembling, and matching parts is easy to process.
The technical solution of the utility model is: a kind of main transmission shaft structure of oil pump comprises gear shaft, gear shaft is provided with driving gear, back shaft and coupling shaft, axle bed in back shaft and pump case is slidably matched, coupling shaft inserts one end of driving shaft, described driving shaft is provided with the axle journal suitable with pump case sidewall mounting hole, and the sidewall of driving shaft is provided with keyway.
Between described coupling shaft and driving shaft, be penetrated with bearing pin.
The utlity model has following beneficial effect: owing to taking such scheme, adding man-hour, processing the laggard luggage of gear shaft and driving shaft joins, both guaranteed the physical dimension of driving gear, guaranteed again the Conncetion cimension of driving shaft and outside transmission part, driving shaft can be assembled with outside transmission part easily, and supporting outside transmission part is also convenient to processing simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is structure sectional view of the present utility model.
1-gear shaft in figure, 2-driving gear, 3-back shaft, 4-coupling shaft, 5-driving shaft, 6-axle journal, 7-keyway, 8-bearing pin.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of main transmission shaft structure of oil pump comprises gear shaft 1, gear shaft 1 is provided with driving gear 2, back shaft 3 and coupling shaft 4, back shaft 3 is slidably matched with the axle bed in pump case, one end that coupling shaft 4 inserts driving shaft 5, described driving shaft 5 is provided with the axle journal 6 suitable with pump case sidewall mounting hole, and the sidewall of driving shaft 5 is provided with keyway 7.Owing to taking such scheme, adding man-hour, process gear shaft 1 and the laggard luggage of driving shaft 5 is joined, both guaranteed the physical dimension of driving gear 2, guaranteed again the Conncetion cimension of driving shaft 5 with outside transmission part, driving shaft 5 can be assembled with outside transmission part easily, and supporting outside transmission part is also convenient to processing simultaneously.
Between described coupling shaft 4 and driving shaft 5, be penetrated with bearing pin 8.Bearing pin 8 is avoided skidding between coupling shaft 4 and driving shaft 5.
Claims (2)
1. the main transmission shaft structure of an oil pump, comprise gear shaft (1), gear shaft (1) is provided with driving gear (2), back shaft (3) and coupling shaft (4), back shaft (3) is slidably matched with the axle bed in pump case, it is characterized in that: coupling shaft (4) inserts one end of driving shaft (5), described driving shaft (5) is provided with the axle journal (6) suitable with pump case sidewall mounting hole, and the sidewall of driving shaft (5) is provided with keyway (7).
2. the main transmission shaft structure of a kind of oil pump according to claim 1, is characterized in that: between described coupling shaft (4) and driving shaft (5), be penetrated with bearing pin (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567434.0U CN203477244U (en) | 2013-09-12 | 2013-09-12 | Main transmission shaft structure of engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567434.0U CN203477244U (en) | 2013-09-12 | 2013-09-12 | Main transmission shaft structure of engine oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477244U true CN203477244U (en) | 2014-03-12 |
Family
ID=50225577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320567434.0U Expired - Fee Related CN203477244U (en) | 2013-09-12 | 2013-09-12 | Main transmission shaft structure of engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505854A (en) * | 2017-09-14 | 2019-03-22 | 柴姣姣 | A kind of combined high-speed generator shaft |
-
2013
- 2013-09-12 CN CN201320567434.0U patent/CN203477244U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505854A (en) * | 2017-09-14 | 2019-03-22 | 柴姣姣 | A kind of combined high-speed generator shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203477244U (en) | Main transmission shaft structure of engine oil pump | |
| CN201547142U (en) | Novel coupler used on hydraulic pump | |
| CN207999454U (en) | Adapter for connecting motor and transmission input shaft | |
| CN203430972U (en) | Connecting shaft of oil supply system of engine | |
| CN204083751U (en) | A kind of internal rotor of oil pump and the linkage structure of axle | |
| CN203500306U (en) | Novel transmission shaft connecting sleeve | |
| CN102966679B (en) | A kind of motor output shaft | |
| CN203380298U (en) | Single-machine driving device of can-making machine | |
| CN203273251U (en) | Machine seat with self-lubricating function | |
| CN203477848U (en) | Small-sized gear type oil pump | |
| CN204716497U (en) | A kind of compressor crank shaft | |
| CN204082946U (en) | A kind of coupling of downhole instrument | |
| CN203835998U (en) | Novel spline locating and guiding structure of input shaft of electric steering gear | |
| CN203743227U (en) | Motor and coupling connecting structure | |
| CN202840814U (en) | Coupling device used for servo motor | |
| CN202340374U (en) | Speed changing box of minitype rotary cultivator | |
| CN203784114U (en) | Coupling | |
| CN203309011U (en) | Speed reducer used for oil drilling rig | |
| CN203477849U (en) | Plastic shell oil pump | |
| CN203256439U (en) | Crankshafts of warp knitting machine | |
| CN202140383U (en) | Built-in key joint mechanism | |
| CN203051522U (en) | Molded surface connection structure of chain wheel and bent axle | |
| CN204299634U (en) | A kind of camshaft | |
| CN202252762U (en) | Oil pump for supercharger | |
| CN201733176U (en) | Motor structure for directly driving sewing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140912 |
|
| EXPY | Termination of patent right or utility model |