CN204327312U - There is the crankcase cover of oil pump assembly - Google Patents
There is the crankcase cover of oil pump assembly Download PDFInfo
- Publication number
- CN204327312U CN204327312U CN201420786336.0U CN201420786336U CN204327312U CN 204327312 U CN204327312 U CN 204327312U CN 201420786336 U CN201420786336 U CN 201420786336U CN 204327312 U CN204327312 U CN 204327312U
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- CN
- China
- Prior art keywords
- oil pump
- crankcase cover
- pin
- pump assembly
- drive pin
- 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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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of crankcase cover with oil pump assembly, comprise crankcase bodies and be arranged at the intrinsic oil pump assembly of crankcase cover, oil pump assembly comprises oil pump casing, rotor and for driving the machine oil pump shaft of rotor turns, machine oil pump shaft is fixed with drive pin, rotor end-face is provided with the cotter way coordinated with this drive pin, therefore, it is possible to fundamentally avoid drive pin to come off in oil pump pivot hole, thus simplify assembly technology.
Description
Technical field
The utility model relates to engine component field, specifically a kind of crankcase cover with oil pump assembly.
Background technique
Crankcase cover is the constituent element of cylinder of petrol engine, the oil pump of existing logical machine is arranged at crankcase cover inside usually, oil pump is the important composition parts of engine lubrication system, after it act as and machine oil is brought up to certain pressure, be sent on the moving surface of each part of motor forcibly, in the oil pump of available engine, rotor of engine oil pump is driven by machine oil pump shaft, located by drive pin between machine oil pump shaft and rotor of engine oil pump, in order to can assembling smoothly of drive pin, Spielpassung is adopted between pin-and-hole on existing machine oil pump shaft and drive pin, therefore, can slide axially between drive pin and bearing pin, cause in oil pump assembly process, drive pin easily comes off in pin-and-hole, bring inconvenience to the assembling of oil pump.
Therefore, for overcoming the above problems, need one can fundamentally avoid drive pin to come off in oil pump pivot hole, thus simplify the crankcase cover with oil pump assembly of assembly technology.
Model utility content
In view of this, the purpose of this utility model overcomes defect of the prior art, provides one can fundamentally avoid drive pin to come off in oil pump pivot hole, thus simplify the crankcase cover with oil pump assembly of assembly technology.
The crankcase cover with oil pump assembly of the present utility model, comprise crankcase bodies and be arranged at the intrinsic oil pump assembly of crankcase cover, oil pump assembly comprises oil pump casing, rotor and for driving the machine oil pump shaft of rotor turns, machine oil pump shaft is fixed with drive pin, rotor end-face is provided with the cotter way coordinated with this drive pin, rotor is arranged in oil pump casing and this rotor is connected with oil pump shaft drive, rotor turns is driven to realize pump oil by machine oil pump shaft, such as in rotor-type oil pump, rotor comprises internal rotor and external rotor, internal rotor and external rotor are all arranged in oil pump casing and internal rotor is connected with oil pump shaft drive, internal rotor and external rotor center have certain throw of eccentric, internal rotor drives external rotor rotate in the same direction together thus realize pump oil, drive pin in the utility model adopts with machine oil pump shaft and is fixedly connected with, can adopt one-body molded, be welded and fixed or the mode such as interference fit realize and oil pump turn join before complete it and connect, when oil pump is assembled, only the machine oil pump shaft be fixed as one and drive pin need be loaded in the cotter way on rotor end-face and can realize being in transmission connection of machine oil pump shaft and rotor, save the assembling of drive pin and machine oil pump shaft, avoid drive pin in assembly process to deviate from from pin-and-hole simultaneously, finally simplify the assembly technology of oil pump,
Further, described machine oil pump shaft is radially provided with pin-and-hole, drive pin is arranged in pin-and-hole and also and between pin-and-hole forms interference fit, therefore machine oil pump shaft and pin-and-hole can manufacturing complete the assembling of machine oil pump shaft and drive pin before oil pump is assembled respectively, ensure that drive pin is relative with between pin-and-hole fixing, turn timing to avoid drive pin in oil pump and come off;
Further, described drive pin is along pin bore axis to running through machine oil pump shaft, it is identical that the length of stretching out outside pin-and-hole at outer and these drive pin two ends of pin-and-hole is stretched out at these drive pin two ends, this structure can ensure uniform force between drive pin and machine oil pump shaft, thus increases substantially its working life and functional reliability;
The crankcase cover with oil pump assembly of the present utility model also comprises Decompression valves assembly, and oil pump casing is provided with pressure release hydraulic fluid port and the inner chamber of oil pump casing is sealed by an oil pump cover plate, Decompression valves assembly comprises elasticity and is connected to relief valve core between oil pump cover plate and pressure release hydraulic fluid port, seal ring should be provided with to improve its sealability between oil pump cover plate and oil pump casing, oil pump casing should be provided with the filler opening with its inner space, oil outlet and pressure release hydraulic fluid port, relief valve core is arranged between oil pump cover plate and pressure release hydraulic fluid port, pressure releasing valve core can adopt the valve core structure of existing Decompression valves, and its elasticity is connected on oil pump cover cover plate, therefore, oil pump cover plate is under the prerequisite ensureing oil pump sealing, simultaneously doublely do Decompression valves mounting base, thus reach one multiplex, make Decompression valves layout in less space range simultaneously, improve engine structure compactedness, the installation to Decompression valves is completed while assembling oil pump cover plate, final simplification assembly technology, save product cost,
Further, described oil pump casing sidewall is provided with the Decompression valves fitting seat for installing relief valve core, and this Decompression valves fitting seat for holding relief valve core, and then keeps its mounting structure, when Decompression valves carry out opening or closing motion time, guide spool slides in this Decompression valves fitting seat;
The crankcase cover with oil pump assembly of the present utility model also comprises crankcase cover, oil pump casing is arranged at crankcase cover internal surface and crankcase cover sidewall is provided with the machine oil outlet being communicated with oil pump casing inner chamber, oil pump casing and crankcase cover one-body molded, thus reduce engine component quantity further, and simplify assembly technology, machine oil outlet on crankcase cover with and the oil outlet of oil pump casing be communicated with, make pressure oil export the machine oil import through oil pipe, pressure oil being delivered to cylinder body from machine oil;
Further, described Decompression valves fitting seat comprises the groove being arranged at oil pump casing outer side wall, relief valve core is arranged between this groove and crankcase cover madial wall, spool can adopt the steel ball coordinated with this arc groove, form the passage holding spool between this arc groove and crankcase cover inwall, therefore, can first spool be installed with in this passage before assembling oil pump cover plate, in fixing oil pump cover plate, realize the assembling of Decompression valves;
Further, described spool comprises Decompression valves steel ball for closed pressure release hydraulic fluid port and the spring that is arranged between this steel ball and oil pump cover plate, when oil pressure in oil pump is lower than setting value, pressure release hydraulic fluid port seals by steel ball under the effect of spring power, after oil pump energy oil pressure is greater than setting value, Decompression valves steel ball will overcome the elastic force of spring, and pressure release hydraulic fluid port is opened, machine oil is flowed out in oil pump casing, thus reduces engine oil pressure;
Further, described oil pump cover plate is disc and this oil pump cover plate radially extends to form spring seat, this spring seat can be provided with the annular groove for fixing spring, ensure the rigging position of spring, make oil pump cover plate while guarantee seals oil pump casing, take into account the function of spring fitting position, and then realize a multiplex object;
Further, described oil pump shaft drive is connected with oil pump gear, and this oil pump gear is driven by train of gearings by engine crankshaft, thus driving machine operation of oil pump.
The beneficial effects of the utility model are: the crankcase cover with oil pump assembly of the present utility model, rotor is arranged in oil pump casing and this rotor is connected with oil pump shaft drive, rotor turns is driven to realize pump oil by machine oil pump shaft, drive pin in the utility model adopts with machine oil pump shaft and is fixedly connected with, can adopt one-body molded, be welded and fixed or the mode such as interference fit realize and oil pump turn join before complete it and connect, when oil pump is assembled, only the machine oil pump shaft be fixed as one and drive pin need be loaded in the cotter way on rotor end-face and can realize being in transmission connection of machine oil pump shaft and rotor, save the assembling of drive pin and machine oil pump shaft, avoid drive pin in assembly process to deviate from from pin-and-hole simultaneously, finally simplify the assembly technology of oil pump.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the connection diagram of machine oil pump shaft of the present utility model and rotor.
Embodiment
Fig. 1 is structural representation of the present utility model; Fig. 2 is the connection diagram of machine oil pump shaft 5 of the present utility model and rotor.The crankcase cover with oil pump assembly of the present embodiment, comprise crankcase bodies 1 and be arranged at the intrinsic oil pump assembly of crankcase cover, oil pump assembly comprises oil pump casing 2, rotor and for driving the machine oil pump shaft 5 of rotor turns, machine oil pump shaft 5 is fixed with drive pin, rotor end-face is provided with the cotter way 13 coordinated with this drive pin, rotor is arranged in oil pump casing 2 and this rotor and machine oil pump shaft 5 are in transmission connection, rotor turns is driven to realize pump oil by machine oil pump shaft 5, such as in rotor-type oil pump, rotor comprises internal rotor 7 and external rotor 8, internal rotor 7 and external rotor 8 are all arranged in oil pump casing 2 and internal rotor 7 and machine oil pump shaft 5 are in transmission connection, internal rotor 7 and external rotor 8 center have certain throw of eccentric, internal rotor 7 drives external rotor 8 rotate in the same direction together thus realize pump oil, drive pin in the utility model adopts with machine oil pump shaft 5 and is fixedly connected with, can adopt one-body molded, be welded and fixed or the mode such as interference fit realize and oil pump turn join before complete it and connect, when oil pump is assembled, only the machine oil pump shaft 5 be fixed as one and drive pin need be loaded in the cotter way 13 on rotor end-face and can realize being in transmission connection of machine oil pump shaft 5 and rotor, save the assembling of drive pin and machine oil pump shaft 5, avoid drive pin in assembly process to deviate from from pin-and-hole simultaneously, finally simplify the assembly technology of oil pump.
In the present embodiment, described machine oil pump shaft 5 is radially provided with pin-and-hole, drive pin is arranged in pin-and-hole and also and between pin-and-hole forms interference fit, therefore machine oil pump shaft 5 and pin-and-hole can manufacturing complete the assembling of machine oil pump shaft 5 and drive pin before oil pump assemble respectively, ensure that drive pin is relative with between pin-and-hole fixing, turn timing to avoid drive pin in oil pump and come off.
In the present embodiment, described drive pin is along pin bore axis to running through machine oil pump shaft 5, it is identical that the length of stretching out outside pin-and-hole at outer and these drive pin two ends of pin-and-hole is stretched out at these drive pin two ends, this structure can ensure uniform force between drive pin and machine oil pump shaft 5, thus increases substantially its working life and functional reliability.
The crankcase cover with oil pump assembly of the present embodiment also comprises Decompression valves assembly, and oil pump casing 2 is provided with pressure release hydraulic fluid port and the inner chamber of oil pump casing 2 is sealed by an oil pump cover plate 10, Decompression valves assembly comprises elasticity and is connected to relief valve core between oil pump cover plate 10 and pressure release hydraulic fluid port, seal ring 9 should be provided with to improve its sealability between oil pump cover plate 10 and oil pump casing 2, oil pump casing 2 should be provided with the filler opening with its inner space, oil outlet and pressure release hydraulic fluid port, relief valve core is arranged between oil pump cover plate 10 and pressure release hydraulic fluid port, pressure releasing valve core can adopt the valve core structure of existing Decompression valves, and its elasticity is connected on oil pump cover cover plate, therefore, oil pump cover plate 10 is under the prerequisite ensureing oil pump sealing, simultaneously doublely do Decompression valves mounting base, thus reach one multiplex, make Decompression valves layout in less space range simultaneously, improve engine structure compactedness, the installation to Decompression valves is completed while assembling oil pump cover plate 10, final simplification assembly technology, save product cost.
In the present embodiment, described oil pump casing 2 sidewall is provided with the Decompression valves fitting seat 3 for installing relief valve core, this Decompression valves fitting seat 3 is for holding relief valve core, and then keep its mounting structure, when Decompression valves carry out opening or closing motion time, guide spool slides in this Decompression valves fitting seat 3;
The crankcase cover with oil pump assembly of the present embodiment also comprises crankcase cover, oil pump casing 2 is arranged at crankcase cover internal surface and crankcase cover sidewall is provided with the machine oil outlet being communicated with oil pump casing 2 inner chamber, oil pump casing 2 is one-body molded with crankcase cover, thus reduce engine component quantity further, and simplify assembly technology, machine oil outlet on crankcase cover with and the oil outlet of oil pump casing 2 be communicated with, make pressure oil export the machine oil import through oil pipe, pressure oil being delivered to cylinder body from machine oil.
In the present embodiment, described Decompression valves fitting seat 3 comprises the groove being arranged at oil pump casing 2 outer side wall, relief valve core is arranged between this groove and crankcase cover madial wall, spool can adopt the steel ball 4 coordinated with this arc groove, form the passage holding spool between this arc groove and crankcase cover inwall, therefore, can first spool be installed with in this passage before assembling oil pump cover plate 10, in fixing oil pump cover plate 10, realize the assembling of Decompression valves.
In the present embodiment, described spool comprises Decompression valves steel ball 4 for closed pressure release hydraulic fluid port and the spring 5 that is arranged between this steel ball 4 and oil pump cover plate 10, when oil pressure in oil pump is lower than setting value, pressure release hydraulic fluid port seals by steel ball 4 under the effect of spring 5 elastic force, after oil pump energy oil pressure is greater than setting value, Decompression valves steel ball 4 will overcome the elastic force of spring 5, and pressure release hydraulic fluid port is opened, machine oil is flowed out in oil pump casing 2, thus reduces engine oil pressure.
In the present embodiment, described oil pump cover plate 10 is for disc and this oil pump cover plate 10 radially extends to form spring seat 11, this spring seat 11 can be provided with the annular groove for fixing spring 5, ensure the rigging position of spring 5, make oil pump cover plate 10 while guarantee seals oil pump casing 2, take into account the function of spring 5 installation position, and then realize a multiplex object.
In the present embodiment, described machine oil pump shaft 5 is connected with oil pump gear 12, and this oil pump gear 12 is driven by train of gearings by engine crankshaft, thus driving machine operation of oil pump.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (10)
1. there is a crankcase cover for oil pump assembly, it is characterized in that: comprise crankcase bodies and be arranged at the intrinsic oil pump assembly of crankcase cover; Described oil pump assembly comprises oil pump casing, rotor and for driving the machine oil pump shaft of described rotor turns; Described machine oil pump shaft is fixed with drive pin, and described rotor end-face is provided with the cotter way coordinated with this drive pin.
2. the crankcase cover with oil pump assembly according to claim 1, is characterized in that: described machine oil pump shaft is radially provided with pin-and-hole, and described drive pin is arranged in pin-and-hole and also and between pin-and-hole forms interference fit.
3. the crankcase cover with oil pump assembly according to claim 1, is characterized in that: also comprise Decompression valves assembly, and described oil pump casing is provided with pressure release hydraulic fluid port and the inner chamber of oil pump casing is sealed by an oil pump cover plate; Described Decompression valves assembly comprises elasticity and is connected to relief valve core between oil pump cover plate and pressure release hydraulic fluid port.
4. the crankcase cover with oil pump assembly according to claim 3, is characterized in that: described relief valve core comprises Decompression valves steel ball for closed pressure release hydraulic fluid port and the spring that is arranged between this steel ball and oil pump cover plate.
5. the crankcase cover with oil pump assembly according to claim 2, is characterized in that: described drive pin is along pin bore axis to running through described machine oil pump shaft, and it is identical that the length of stretching out outside pin-and-hole at outer and these drive pin two ends of pin-and-hole is stretched out at these drive pin two ends.
6. the crankcase cover with oil pump assembly according to claim 3, is characterized in that: described oil pump casing sidewall is provided with the Decompression valves fitting seat for installing relief valve core.
7. the crankcase cover with oil pump assembly according to claim 1, is characterized in that: also comprise crankcase cover, and described oil pump casing is arranged at crankcase cover internal surface and described crankcase cover sidewall is provided with the machine oil outlet being communicated with oil pump casing inner chamber.
8. the crankcase cover with oil pump assembly according to claim 6, is characterized in that: described Decompression valves fitting seat comprises the groove being arranged at oil pump casing outer side wall, and described relief valve core is arranged between this groove and crankcase cover madial wall.
9. the crankcase cover with oil pump assembly according to claim 8, is characterized in that: described oil pump cover plate is disc and this oil pump cover plate radially extends to form spring seat.
10. the crankcase cover with oil pump assembly according to claim 1, is characterized in that: described oil pump shaft drive is connected with oil pump gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786336.0U CN204327312U (en) | 2014-12-12 | 2014-12-12 | There is the crankcase cover of oil pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786336.0U CN204327312U (en) | 2014-12-12 | 2014-12-12 | There is the crankcase cover of oil pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327312U true CN204327312U (en) | 2015-05-13 |
Family
ID=53163681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420786336.0U Expired - Fee Related CN204327312U (en) | 2014-12-12 | 2014-12-12 | There is the crankcase cover of oil pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595054A (en) * | 2014-12-12 | 2015-05-06 | 隆鑫通用动力股份有限公司 | Crankcase cover with fixed driving pin |
-
2014
- 2014-12-12 CN CN201420786336.0U patent/CN204327312U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595054A (en) * | 2014-12-12 | 2015-05-06 | 隆鑫通用动力股份有限公司 | Crankcase cover with fixed driving pin |
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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: 20150513 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |