CN105351133B - A kind of oil lubricating formula high pressure variable pump camshaft - Google Patents
A kind of oil lubricating formula high pressure variable pump camshaft Download PDFInfo
- Publication number
- CN105351133B CN105351133B CN201510932377.5A CN201510932377A CN105351133B CN 105351133 B CN105351133 B CN 105351133B CN 201510932377 A CN201510932377 A CN 201510932377A CN 105351133 B CN105351133 B CN 105351133B
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- CN
- China
- Prior art keywords
- cam
- oil
- oilhole
- eccentric cam
- bearing bush
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
Abstract
The invention provides a kind of oil lubricating formula high pressure variable pump camshaft, including cam axis body, flanger bearing bush, cartridge sleeve and cam ring, the cam axis body includes gear, multiple eccentric cams and multiple axle journals, machine oil main oil gallery is provided with the inside center axis of the cam axis body, the cam axis body is sequentially provided with the machine oil oil inlet connected with machine oil main oil gallery, gear lubrication oilhole, the journal lubrication oil duct for lubricating axle journal, the eccentric cam oilhole and eccentric cam oil-way for lubricating eccentric cam connected with gear to the back-end by drive end.Relative to prior art, the present invention has the advantage that：The oil lubricating formula high pressure variable pump camshaft can meet the fuel delivery and charge oil pressure of big flow fuel oil supply system, meanwhile, improve the lubrication and Frotteurism between camshaft and driven member, improve the durability and reliability of camshaft.
Description
Technical field
The invention belongs to engine fuel feed system technical field, undermined more particularly, to one kind for improving S-CAM grinder
Optimize the oil lubricating formula high pressure variable pump camshaft of high pressure variable pump lubrication mode.
Background technology
Increasingly strict with Abgasgesetz, oil-supply speed, injection pressure required for diesel engine are constantly climbed to a higher point, to plunger
The requirement of diameter, fuel feeding pretravel and lift is improved constantly.These final charge oil pressures, movement parts inertia force will fall in cam
On, so the working strength of camshaft is very big.
In the prior art, the continuous improvement of engine speed and load causes the wear problem between cam and driven member to show
Obtain more serious, the abrasion of part will cause gap to increase, cause kinematic accuracy to decline, noise increases, and influences oil supply performance.It is convex
The quality of lubrication state on wheel shaft and camshaft between each part directly affects the length in injection pump life-span, and then to engine
Durability and reliability can also produce influence.
The content of the invention
In view of this, the present invention is directed to propose a kind of oil lubricating formula high pressure variable pump camshaft, with to improve camshaft
Bearing capacity, ensure the fuel delivery and charge oil pressure of high pressure variable pump, improve the stress shape that each movement parts are acted on each other
The lubrication and Frotteurism of state and each contact site.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of oil lubricating formula high pressure variable pump camshaft, including cam axis body, flanger bearing bush, cartridge sleeve and cam
Ring, the cam axis body includes setting at gear, multiple eccentric cams and multiple axle journals, the inside center axis of the cam axis body
Organic oil main oil gallery, the cam axis body by drive end to the back-end be sequentially provided with the machine oil oil inlet connected with machine oil main oil gallery,
The gear lubrication oilhole connected with gear, the journal lubrication oil duct for lubricating axle journal, for lubricating the eccentric convex of eccentric cam
Take turns oilhole and eccentric cam oil-way；
Cartridge sleeve is combined with the outside of the eccentric cam and axle journal, the axle journal with the rear and front end of the cam axis body
Flanger bearing bush is combined between the cartridge sleeve and axle journal of cooperation；The axle journal profit of two axle journals of the cam axis body rear and front end
Flanger bearing bush oilhole on grease way and corresponding flanger bearing bush, the cartridge sleeve oilhole also having in corresponding cartridge sleeve
Connection；
Cam ring is also combined with the outside of the cartridge sleeve coordinated with the eccentric cam；The corresponding bias of each eccentric cam
Cam oilhole and eccentric cam oil-way, with the cartridge sleeve oilhole in the cartridge sleeve of corresponding matching therewith
Connection, and connected with the cam ring oilhole of the cam ring of corresponding matching therewith；
The cartridge sleeve oilhole of the cartridge sleeve of mutual cooperation aligns with the cam ring oilhole of cam ring；The institute of mutual cooperation
The flanger bearing bush oilhole of flanger bearing bush is stated to connect with the journal lubrication oil duct coincidence of axle journal；
The left and right sides of the cam ring is provided with cam ring oil-way, and the flange of the flanger bearing bush is provided with uniform
Flanger bearing bush oil-way radially.
Further, the cartridge sleeve on the outside of the eccentric cam and eccentric cam are interference fits, the cam ring and
Corresponding cartridge sleeve is interference fit；The flanger bearing bush and with to corresponding axle journal for interference fit, the flange
Axle sleeve and corresponding cartridge sleeve are interference fits.
Further, the cam ring oil-way with corresponding cam ring oilhole in the same side, the flange axle
Oil-way is covered with corresponding flanger bearing bush oilhole in the same side.
Further, the cam ring oilhole on the cam ring hangs down with the plane where the cam ring oilhole
Directly, at the 1/4 of the plane, and two planes up and down of cam ring are parallel.
Further, the cam axis body from front to back include be sequentially provided with gear, axle journal one, eccentric cam one, partially
Cardiac prominence wheel two, eccentric cam three, axle journal two, eccentric cam four, eccentric cam five and axle journal three；The eccentric cam one and bias
Cam two, three is coaxial and is connected that the eccentric cam four, five is coaxial and is connected as a single entity, and the eccentric cam one,
2nd, the central axis of three central axis and eccentric cam four, five is symmetrical on the central axis of camshaft.
Relative to prior art, the present invention has the advantage that：
(1) the oil lubricating formula high pressure variable pump camshaft can meet big flow fuel oil supply system fuel delivery and
Charge oil pressure, meanwhile, improve the lubrication and Frotteurism between camshaft and driven member, improve the durability of camshaft and reliable
Property；
(2) reasonable in design, is easily realized.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the overall structure diagram of oil lubricating formula high pressure variable pump camshaft described in the embodiment of the present invention；
Fig. 2 is Fig. 1 A-A faces sectional view；
Fig. 3 is the structural representation of cam axis body described in the embodiment of the present invention；
Fig. 4 is Fig. 3 B-B faces sectional view；
Fig. 5 is the front view of flange bearing described in the embodiment of the present invention；
Fig. 6 is Fig. 5 C-C faces sectional view；
Fig. 7 is the structural representation of cartridge sleeve described in the embodiment of the present invention；
Fig. 8 is the side view of cam ring described in the embodiment of the present invention；
Fig. 9 is the front view of cam ring described in the embodiment of the present invention.
Description of reference numerals：
1- cam axis bodies, 2- flanger bearing bush, 21- flanger bearing bush oilholes, 22- flanger bearing bush oil-ways, 3- cams
Ring, 31- cam ring oilholes, 32- cam ring oil-ways, 4- cartridge sleeves, 41- cartridge sleeve oilholes, 5- machine oil
Main oil gallery, 6- machine oil oil inlets, 7- gears, 71- gear lubrication oilholes, 8- eccentric cams, 81- eccentric cam oil-ways, 82-
Eccentric cam oilhole, 9- axle journals, 91- journal lubrication oil ducts.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of oil lubricating formula high pressure variable pump camshaft, as shown in Figure 1 to 9, including cam axis body 1, flanger bearing bush 2,
Cartridge sleeve 4 and cam ring 3,
The cam axis body 1 is included in gear 7, multiple eccentric cams 8 and multiple axle journals 9, the inside of the cam axis body 1
Machine oil main oil gallery 5 is provided with heart axis, the cam axis body 1 is sequentially provided with and connected with machine oil main oil gallery 5 to the back-end by drive end
Machine oil oil inlet 6, the gear lubrication oilhole 71 connected with gear 7, the journal lubrication oil duct 91 for lubricating axle journal 9, be used for
Lubricate the eccentric cam oilhole 82 and eccentric cam oil-way 81 of eccentric cam 8；
The outside of eccentric cam 8 and axle journal 9 is combined with cartridge sleeve 4, with the rear and front end of the cam axis body 1
Flanger bearing bush 2 is combined between cartridge sleeve 4 and axle journal 9 that axle journal 9 coordinates；Two axles of the rear and front end of cam axis body 1
Flanger bearing bush oilhole 21 on the journal lubrication oil duct 91 and corresponding flanger bearing bush 2 of neck 9, there is corresponding cylinder
Cartridge sleeve oilhole 41 on axle sleeve 4 is connected；
The outside of cartridge sleeve 4 coordinated with the eccentric cam 8 is also combined with cam ring 3；Each eccentric cam 8 is corresponding
Eccentric cam oilhole 82 and eccentric cam oil-way 81, with the circle in the cartridge sleeve 4 of corresponding matching therewith
Axis of a cylinder set oilhole 41 is connected, and and the cam ring oilhole 31 on the cam ring 3 of the cam ring 3 of corresponding matching connects therewith
It is logical；
Specifically, the cartridge sleeve 4 in the outside of eccentric cam 8 and eccentric cam 8 are interference fits, the cam ring 3
It is interference fit with corresponding cartridge sleeve 4；The cartridge sleeve oilhole 41 and cam of the cartridge sleeve 4 of mutual cooperation
The cam ring oilhole 31 of ring 3 aligns；
Specifically, the flanger bearing bush 2 and with to corresponding axle journal 9 be interference fit, the flanger bearing bush 2 and right therewith
The cartridge sleeve 4 answered is interference fits；The flanger bearing bush oilhole 21 of the flanger bearing bush 2 cooperated and axle journal 9
Journal lubrication oil duct 91 overlaps connection；
The left and right sides of the cam ring 3 be provided with cam ring oil-way 32, the cam ring oil-way 32 with it is described
The cam ring oilhole 31 of cam ring 3 is in the same side；
The flange of the flanger bearing bush 2 is provided with uniform flanger bearing bush oil-way 22 radially, the flange axle
Oil-way 22 is covered with the flanger bearing bush oilhole 21 on the flanger bearing bush 2 in the same side.
Cam ring oilhole 31 on the cam ring 3 is vertical with the plane where the cam ring oilhole 31, position
At the 1/4 of the plane, and two planes up and down of cam ring 3 are parallel；
The present embodiment is from front to back including the gear 7 being sequentially provided with, axle journal one, eccentric cam one, eccentric cam two, bias
Cam three, axle journal two, eccentric cam four, eccentric cam five and axle journal three；The eccentric cam one is same with eccentric cam two, three
Axle and it is connected, the eccentric cam four, five is coaxial and is connected as a single entity, and the central shaft of the eccentric cam one, two, three
The central axis of line and eccentric cam four, five is symmetrical on the central axis of camshaft；
The eccentric cam 8, flanger bearing bush 2 and cam ring 3 are not only provided with oil leab and are also designed with oil-way, have
Effect enhances greasy property, so as to ensure that the wearability of camshaft under high workload intensity.
In use, machine oil enters the machine oil main oil gallery 5 of high pressure variable pump camshaft from machine oil oil inlet 6, machine oil enters rapidly
Enter gear lubrication oilhole 71, journal lubrication oil duct 91, eccentric cam oilhole 82 and eccentric cam oil-way 81.Machine oil leads to
Each oil duct for crossing camshaft body 1 enters the oil leab of driven member, including flanger bearing bush oilhole 21 and flanger bearing bush lubrication
Oil groove 22, cartridge sleeve oilhole 41, cam ring oilhole 31, cam ring oil-way 32.
There is preferable wearability with the cartridge sleeve 4 that the axle journal 9 coordinates, the camshaft caused by abrasion is effectively reduced
The reduced outer diameter amount of neck 9, slow down surface abrasion speed, and remaining cartridge sleeve 4 is interference fitted with cam ring 3, is operated in cam
Fretting wear is directly born in journey, effectively protection cam ring 3 and eccentric cam 8, extend its service life.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (5)
1. a kind of oil lubricating formula high pressure variable pump camshaft, it is characterised in that：Including cam axis body (1), flanger bearing bush (2),
Cartridge sleeve (4) and cam ring (3),
The cam axis body (1) includes gear (7), multiple eccentric cams (8) and multiple axle journals (9), the cam axis body (1)
Machine oil main oil gallery (5) is provided with inside center axis, the cam axis body (1) is sequentially provided with and machine oil master to the back-end by drive end
The machine oil oil inlet (6) of oil duct (5) connection, the gear lubrication oilhole (71) connected with gear (7), for lubricating axle journal (9)
Journal lubrication oil duct (91), eccentric cam oilhole (82) and eccentric cam oil-way for lubricating eccentric cam (8)
(81)；
Cartridge sleeve (4) is combined with the outside of the eccentric cam (8) and axle journal (9), front and rear two with the cam axis body (1)
Flanger bearing bush (2) is combined between cartridge sleeve (4) and axle journal (9) that the axle journal (9) at end coordinates；Before the cam axis body (1)
The flanger bearing bush on the journal lubrication oil duct (91) and corresponding flanger bearing bush (2) of two axle journals (9) at two ends lubricates afterwards
Oilhole (21), cartridge sleeve oilhole (41) connection also having on corresponding cartridge sleeve (4)；
Cam ring (3) is also combined with the outside of the cartridge sleeve (4) coordinated with the eccentric cam (8)；Each eccentric cam (8) is right
The eccentric cam oilhole (82) and eccentric cam oil-way (81) answered, the cartridge sleeve with corresponding matching therewith
(4) cartridge sleeve oilhole (41) connection on, and and the cam ring (3) of corresponding matching therewith cam ring oilhole
(31) connect；
The cartridge sleeve oilhole (41) of the cartridge sleeve (4) of mutual cooperation and the cam ring oilhole of cam ring (3)
(31) align；The journal lubrication oil of the flanger bearing bush oilhole (21) of the flanger bearing bush (2) cooperated and axle journal (9)
Road (91) overlaps connection；
The left and right sides of the cam ring (3) is provided with cam ring oil-way (32), and the flange of the flanger bearing bush (2) is provided with
Uniform flanger bearing bush oil-way (22) radially.
2. oil lubricating formula high pressure variable pump camshaft according to claim 1, it is characterised in that：The eccentric cam
(8) cartridge sleeve (4) and eccentric cam (8) on the outside of are interference fits, the cam ring (3) and corresponding cartridge sleeve
(4) it is interference fit；The flanger bearing bush (2) and corresponding axle journal (9) are interference fit, the flanger bearing bush (2) and
Corresponding cartridge sleeve (4) is interference fits.
3. oil lubricating formula high pressure variable pump camshaft according to claim 1, it is characterised in that：The cam ring lubrication
Oil groove (32) is with corresponding cam ring oilhole (31) in the same side, and the flanger bearing bush oil-way (22) is turned over corresponding
Side shaft sleeve lubricating oilhole (21) is in the same side.
4. oil lubricating formula high pressure variable pump camshaft according to claim 1, it is characterised in that：The cam ring (3)
On cam ring oilhole (31) it is vertical with the plane where the cam ring oilhole (31), at the 1/4 of the plane,
And two planes up and down of cam ring (3) are parallel.
5. oil lubricating formula high pressure variable pump camshaft according to claim 1, it is characterised in that：The cam axis body
(1) gear (7), axle journal one, eccentric cam one, eccentric cam two, eccentric cam three, the axle journal being sequentially provided with are included from front to back
2nd, eccentric cam four, eccentric cam five and axle journal three；The eccentric cam one and eccentric cam two, three are coaxial and are linked to be one
Body, the eccentric cam four, five is coaxial and is connected as a single entity, and the central axis and bias of the eccentric cam one, two, three are convex
The central axis of wheel four, five is symmetrical on the central axis of camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510932377.5A CN105351133B (en) | 2015-12-11 | 2015-12-11 | A kind of oil lubricating formula high pressure variable pump camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510932377.5A CN105351133B (en) | 2015-12-11 | 2015-12-11 | A kind of oil lubricating formula high pressure variable pump camshaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105351133A CN105351133A (en) | 2016-02-24 |
| CN105351133B true CN105351133B (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510932377.5A Active CN105351133B (en) | 2015-12-11 | 2015-12-11 | A kind of oil lubricating formula high pressure variable pump camshaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN105351133B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611251B (en) * | 2018-10-30 | 2020-05-08 | 中国北方发动机研究所(天津) | Split type high-pressure oil pump camshaft of seat circle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2567349Y (en) * | 2002-09-06 | 2003-08-20 | 重庆宗申技术开发研究有限公司 | Internet oil-pipe lubricating device of camshaft of motorcycle |
| CN2921300Y (en) * | 2006-06-27 | 2007-07-11 | 奇瑞汽车有限公司 | Vehicle engine camshaft lubricating structure |
| CN201619642U (en) * | 2010-03-19 | 2010-11-03 | 罗黄斌 | Motorcycle camshaft lubricating device |
| CN102140948A (en) * | 2011-03-29 | 2011-08-03 | 奇瑞汽车股份有限公司 | Eccentric shaft of variable valve lift automobile engine |
| CN202510182U (en) * | 2012-01-29 | 2012-10-31 | 长城汽车股份有限公司 | Camshaft bushing and camshaft with same |
| CN102787875A (en) * | 2012-08-23 | 2012-11-21 | 东风汽车公司 | Engine camshaft with oil storage tank |
| CN204186442U (en) * | 2014-10-29 | 2015-03-04 | 阿尔特汽车技术股份有限公司 | Camshaft lubrication oil channel structures |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579429A (en) * | 1991-06-13 | 1993-03-30 | Yanmar Diesel Engine Co Ltd | Lubrication device of diesel engine |
| CN2602191Y (en) * | 2003-01-23 | 2004-02-04 | 烟台冰轮股份有限公司 | Twin-cylinder acting rotor-piston pump |
-
2015
- 2015-12-11 CN CN201510932377.5A patent/CN105351133B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2567349Y (en) * | 2002-09-06 | 2003-08-20 | 重庆宗申技术开发研究有限公司 | Internet oil-pipe lubricating device of camshaft of motorcycle |
| CN2921300Y (en) * | 2006-06-27 | 2007-07-11 | 奇瑞汽车有限公司 | Vehicle engine camshaft lubricating structure |
| CN201619642U (en) * | 2010-03-19 | 2010-11-03 | 罗黄斌 | Motorcycle camshaft lubricating device |
| CN102140948A (en) * | 2011-03-29 | 2011-08-03 | 奇瑞汽车股份有限公司 | Eccentric shaft of variable valve lift automobile engine |
| CN202510182U (en) * | 2012-01-29 | 2012-10-31 | 长城汽车股份有限公司 | Camshaft bushing and camshaft with same |
| CN102787875A (en) * | 2012-08-23 | 2012-11-21 | 东风汽车公司 | Engine camshaft with oil storage tank |
| CN204186442U (en) * | 2014-10-29 | 2015-03-04 | 阿尔特汽车技术股份有限公司 | Camshaft lubrication oil channel structures |
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| Publication number | Publication date |
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| CN105351133A (en) | 2016-02-24 |
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