CN201496117U - Assembling structure of engine oil pump on engine - Google Patents

Assembling structure of engine oil pump on engine Download PDF

Info

Publication number
CN201496117U
CN201496117U CN2009201282090U CN200920128209U CN201496117U CN 201496117 U CN201496117 U CN 201496117U CN 2009201282090 U CN2009201282090 U CN 2009201282090U CN 200920128209 U CN200920128209 U CN 200920128209U CN 201496117 U CN201496117 U CN 201496117U
Authority
CN
China
Prior art keywords
oil pump
oil
gear
pedestal
engine
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
Application number
CN2009201282090U
Other languages
Chinese (zh)
Inventor
孔令华
程仕杰
彭发碧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Longxin Engine Co Ltd
Original Assignee
Chongqing Longxin Engine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Longxin Engine Co Ltd filed Critical Chongqing Longxin Engine Co Ltd
Priority to CN2009201282090U priority Critical patent/CN201496117U/en
Application granted granted Critical
Publication of CN201496117U publication Critical patent/CN201496117U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an assembling structure of an engine oil pump on an engine, which comprises an oil pump seat body (1), an oil pump cover (2), an oil pump shaft (3), an oil pump driven gear (4) and a gear assembly or a rotor assembly, wherein the gear assembly or the rotor assembly is arranged on the oil pump shaft (3) and is positioned in the inner cavity of the oil pump seat body (1), the oil pump seat body (1) and the inner wall of a crankcase body (5) is in an integral structure which is integrally formed, and the oil pump driven gear (4) arranged on the end of the oil pump shaft (3) is engaged with an oil pump driving gear (7) arranged on a crank shaft (6). The utility model has the advantages of compact structure of the engine, manufacture cost reduction and obvious reduction on engagement noise between the driving gear and the driven gear of the engine oil pump.

Description

The assembling structure of oil pump on motor
Technical field
The utility model relates to the equipment part on the motor, especially the assembling structure of oil pump on motor.
Background technique
Oil pump is the core component of engine lubrication system, in order to a certain amount of lubricant oil is extracted out pressurization from oil sump after, delivers to each part surface continuously and is lubricated, and keeps the circulation of lubricant oil in lubricating system.Oil pump is loaded in the crankcase mostly, adopts the gear drive mode, drives by camshaft, bent axle or timing gear.
On existing four stroke engine, usually adopt be have compact structure, fuel delivery is big, fuel feeding is even, noise is little and the rotor-type oil pump of oil suction degree of vacuum advantages of higher, this oil pump mainly is assembled into an assembly by oil pump pedestal, inner and outer rotors, oil pump cover, oil pump shaft, oil pump driven gear etc., during the assembling motor this assembly is installed on the motor.This mode oil pump shared space in motor is bigger, makes whole motor cost higher; And owing to make and assembly error, the centre distance of oil pump driven gear and driving gear is not easy to be guaranteed, and causes the engagement noise between oil pump driven gear and the driving gear bigger than normal.
The model utility content
The purpose of this utility model provides the assembling structure of a kind of oil pump on motor, and to take the engine interior space big to solve existing oil pump, and the big problem of driving and driven gear tooth noise of oil pump.
For solving the problems of the technologies described above, the utility model provides the assembling structure of a kind of oil pump on motor, include oil pump pedestal, oil pump cover, oil pump shaft, oil pump driven gear and be contained on the oil pump shaft and be positioned at gear assembly or rotor assembly in the oil pump pedestal inner chamber, the monolithic construction that oil pump pedestal and crankcase body inwall are formed in one is installed in the oil pump driven gear and the engagement of the oil pump drive gear on the bent axle of oil pump axle head.
Because the oil pump pedestal is set to become all-in-one-piece structure with the crankcase body inwall, be that the oil pump pedestal is to be integral by the crankcase body inwall to extend boss, and on boss, process oil pump chamber, oil inlet hole and oil outlet and form, be assembled into an assembly with the independent processing of traditional oil pump, and then the mode that this assembly is assemblied in the crankcase body compared, can make the compact assembling structure of oil pump in crankcase body, reduce it and take up room; Simultaneously can also reduce assembly error, guarantee that the centre distance between the driving and driven gear of oil pump meets the demands, thereby reduce the engagement noise between them.
Further, the oil inlet hole of described oil pump pedestal inner chamber is connected with the machine oil pond of crankcase body bottom by a continuously straight oil duct, being used for being provided with the continuous directly fin of oil duct is to be integral from the crankcase body inwall to extend, and be connected as a single entity with the oil pump pedestal, make compact structure like this, sealing is reliable, and oil-feed is more direct, abundant.
The utility model makes the compact structure of motor, has reduced manufacture cost, and the engagement noise between the driving and driven gear of oil pump is able to obvious reduction.
Description of drawings
Fig. 1 is the side view of engine crankshaft casing among the utility model embodiment 1;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the side view of engine crankshaft casing among the utility model embodiment 2;
Fig. 4 is the B-B sectional view of Fig. 3;
Among the figure: 1. oil pump pedestal; 2. oil pump cover; 3. oil pump shaft; 4. oil pump driven gear; 5. crankcase body; 6. bent axle; 7. oil pump drive gear; 8. straight oil duct; 9. machine oil pond; 10. fin; 11. internal rotor; 12. bearing pin; 13. external rotor; 14. packing ring; 15. collar; 16. oil outlet; 17. thick filtering net; 18. driving tooth; 19. driven tooth; 20. transmission shaft; 21. filler opening.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figures 1 to 4, the assembling structure of oil pump described in the utility model on motor, have oil pump pedestal 1, oil pump cover 2, oil pump shaft 3, oil pump driven gear 4 and be contained on the oil pump shaft 3 and be positioned at gear assembly or rotor assembly in oil pump pedestal 1 inner chamber, oil pump pedestal 1 and the monolithic construction that crankcase body 5 inwalls are formed in one are installed in the oil pump driven gear 4 and 7 engagements of the oil pump drive gear on the bent axle 6 of oil pump shaft 3 ends.Oil pump pedestal 1 is to be integral by crankcase body 1 inwall to extend boss, and on boss, process oil pump chamber, oil inlet hole and oil outlet and form, be assembled into an assembly with the independent processing of traditional oil pump, and then the mode that this assembly is assemblied in the crankcase body compared, can make the compact assembling structure of oil pump in crankcase body, reduce it and take up room; Simultaneously can also reduce assembly error, guarantee that the centre distance between the driving and driven gear of oil pump meets the demands, thereby reduce the engagement noise between them.Gear assembly on the oil pump shaft 3 or rotor assembly structure wheeled with conventional tooth or rotor-type oil pump is identical.
The oil inlet hole of oil pump pedestal 1 inner chamber is connected with the machine oil pond 9 of crankcase body 5 bottoms by a continuously straight oil duct 8, being used for being provided with the continuous directly fin 10 of oil duct 8 is to be integral from crankcase body 5 inwalls to extend, and be connected as a single entity with oil pump pedestal 1, make compact structure like this, sealing is reliable, and oil-feed is more direct, abundant.
Oil pump cover 2 is a platy structure, and oil pump cover 2 is fixed by bolts on the end face of oil pump pedestal 1, and is easy for installation, quick.
Among Fig. 1 to Fig. 4, label 16 is the oil outlet of oil pump pedestal 1 inner chamber, and 21 is oil inlet hole, and 17 is the thick filtering net in 9 li in machine oil pond.
In Fig. 1, embodiment 1 shown in Figure 2, oil pump is the rotator type structure, and internal rotor 11 usefulness bearing pins 12 are fixed on the oil pump shaft 3, and is eccentric between external rotor 13 and the internal rotor 11.Oil pump driven gear 4 usefulness packing rings 14 and collar 15 are fixed on oil pump shaft 3 ends.When internal rotor 11 rotation, drive external rotor 13 and rotate, because when in the design of rotor tooth form flank profil line, making that rotor forwards any position to, total energy holding point contact condition mutually on the profile of tooth flank profil line of inside and outside rotor 11 and each tooth of 13; Like this, inside and outside rotor 11 and 13 just form four active chambers, when some active chambers when oil sucting cavity turns over, volume increases, and produces vacuum, machine oil is inhaled into active chamber from oil inlet hole 21; Along with being rotated further of inside and outside rotor 11 and 13, when this active chamber forwarded the position that pumping cavity communicates to, volume diminished, and oil pressure raises, and machine oil is pressed into the oil leab from oil outlet 16 through pumping cavity.
In Fig. 3, embodiment 2 shown in Figure 4, oil pump is an outer gearing formula gear pump structure, driving tooth 18 is fixed on the oil pump shaft 3, driven tooth 19 is fixed on the transmission shaft 20 parallel with oil pump shaft 3, when driving tooth 18 drives driven tooth 19 rotations, the volume of oil suction chamber is owing to gear increases to the motion of out-of-gear direction, the certain degree of vacuum of the generation chamber in, and machine oil just is inhaled into and is full of oil suction chamber from filler opening 21.The machine oil that between cog is deposited in the gear rotation takes to out in the oil pocket, because a fuel-displaced side gear enters engagement, goes out the oil pocket volume and reduces, and oil pressure raises, and machine oil is just discharged through oil outlet 16.
The also inside and outside mesh gear pump structure of oil pump in the utility model is because its concrete structure is identical with the oil pump of working principle and traditional independent assembly of using always, so its structure and principle are no longer described.

Claims (3)

1. the assembling structure of an oil pump on motor, comprise oil pump pedestal, oil pump cover, oil pump shaft, oil pump driven gear and be contained on the oil pump shaft and be positioned at gear assembly or rotor assembly in the oil pump pedestal inner chamber, it is characterized in that: the monolithic construction that described oil pump pedestal and crankcase body inwall are formed in one is installed in the oil pump driven gear and the engagement of the oil pump drive gear on the bent axle of oil pump axle head.
2. the assembling structure of oil pump on motor according to claim 1, it is characterized in that: the oil inlet hole of described oil pump pedestal inner chamber is connected with the machine oil pond of crankcase body bottom by a continuously straight oil duct, being used for being provided with the continuous directly fin of oil duct is to be integral from the crankcase body inwall to extend, and is connected as a single entity with the oil pump pedestal.
3. the assembling structure of oil pump on motor according to claim 1, it is characterized in that: described oil pump cover is a platy structure, and oil pump cover is fixed by bolts on the end face of oil pump pedestal.
CN2009201282090U 2009-07-28 2009-07-28 Assembling structure of engine oil pump on engine Expired - Fee Related CN201496117U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201282090U CN201496117U (en) 2009-07-28 2009-07-28 Assembling structure of engine oil pump on engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201282090U CN201496117U (en) 2009-07-28 2009-07-28 Assembling structure of engine oil pump on engine

Publications (1)

Publication Number Publication Date
CN201496117U true CN201496117U (en) 2010-06-02

Family

ID=42439325

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201282090U Expired - Fee Related CN201496117U (en) 2009-07-28 2009-07-28 Assembling structure of engine oil pump on engine

Country Status (1)

Country Link
CN (1) CN201496117U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103307430A (en) * 2013-06-28 2013-09-18 力帆实业(集团)股份有限公司 Rotor-type oil pump mounted on crankcase body
CN103883424A (en) * 2014-03-26 2014-06-25 江门天钇金属工业有限公司 Motorcycle engine
CN109441657A (en) * 2019-01-04 2019-03-08 重庆隆鑫发动机有限公司 Crankcase and engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103307430A (en) * 2013-06-28 2013-09-18 力帆实业(集团)股份有限公司 Rotor-type oil pump mounted on crankcase body
CN103883424A (en) * 2014-03-26 2014-06-25 江门天钇金属工业有限公司 Motorcycle engine
CN103883424B (en) * 2014-03-26 2017-01-18 江门天钇金属工业有限公司 Motorcycle engine
CN109441657A (en) * 2019-01-04 2019-03-08 重庆隆鑫发动机有限公司 Crankcase and engine

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Chongqing Longxin Engine Ltd.

Assignor: Chongqing Longxin Engine Co., Ltd.

Contract record no.: 2012500000045

Denomination of utility model: Assembling structure of engine oil pump on engine

Granted publication date: 20100602

License type: Exclusive License

Record date: 20120508

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100602

Termination date: 20120728

EE01 Entry into force of recordation of patent licensing contract

Assignee: Chongqing Longxin Engine Ltd.

Assignor: Chongqing Longxin Engine Co., Ltd.

Contract record no.: 2012500000045

Denomination of utility model: Assembling structure of engine oil pump on engine

Granted publication date: 20100602

License type: Exclusive License

Record date: 20120508

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model