CN105370334A - Novel cam shaft structure - Google Patents
Novel cam shaft structure Download PDFInfo
- Publication number
- CN105370334A CN105370334A CN201510814228.9A CN201510814228A CN105370334A CN 105370334 A CN105370334 A CN 105370334A CN 201510814228 A CN201510814228 A CN 201510814228A CN 105370334 A CN105370334 A CN 105370334A
- Authority
- CN
- China
- Prior art keywords
- cam
- axostylus axostyle
- shaft
- oilhole
- offers
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/08—Shape of cams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/101—Lubrication of valve gear or auxiliaries of cam surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0471—Assembled camshafts
- F01L2001/0473—Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
- F01M2001/064—Camshaft with passageways
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses a novel cam shaft structure which comprises a shaft rod and a shaft rod core. The shaft rod is provided with a shaft rod sleeve with an inner thread. A shaft hole is formed along the center line of the shaft rod sleeve. A first positioning groove is formed in the outer wall of the shaft rod sleeve. A first oil groove is formed in the outer wall of the shaft rod sleeve in the radial direction. A first oil hole is formed in the first oil groove and communicated with the shaft hole. The shaft rod is sleeved with a check ring. The novel cam shaft structure has the beneficial effects that the novel cam shaft structure is easy to replace and convenient to maintain, the service life is prolonged, and cost is reduced.
Description
Technical field
The present invention relates to a kind of camshaft structure.
Background technique
Existing engine combustion process mainly comprises air inlet, compression, power and exhaust, and wherein, air inlet is that piston comes downwards to lower dead centre from upper dead center, air intake valve 51 is opened, and drain tap 52 is closed, now, generating portion negative pressure of vacuum in cylinder 5, sucks in cylinder 5 by gas-air mixture, compression stroke, piston goes upward to upper dead center from lower dead centre, and now air valve is closed, and outlet valve is opened, and the waste gas of burning in cylinder 5, drains in air through drain tap 52, the primary component controlling switch between its air intake valve 51 of engine and drain tap 52 is camshaft, existing camshaft is mainly one-body molded on axostylus axostyle intake cam and exhaust cam, to contact with the Rocker arm 5 11 of air intake valve 51 and drain tap 52 respectively, make intake cam and exhaust cam form certain stagger angle to set up, reach control air inlet, the opening and closing of drain tap 52, due to the intake cam on existing camshaft extremely exhaust cam be one-body molded with axostylus axostyle, therefore the angle staggered between the two is in fixing shape, when carrying out engine exploitation, intake cam and the exhaust cam of different various different offset angular specification must be made, cost is higher, in addition, existing camshaft structure, its intake cam and exhaust cam one-body molded on axostylus axostyle, when when camshaft, intake cam, exhaust cam or axostylus axostyle, any one is damaged, camshaft just wants whole replacing, reduces the working life of whole camshaft.
Therefore those skilled in the art are devoted to develop a kind of camshaft reduced costs.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is a kind of camshaft reduced costs of exploitation.
For achieving the above object, the invention provides and a kind of new type of cam axle construction is provided, comprise axostylus axostyle and axostylus axostyle core; Axostylus axostyle is provided with axostylus axostyle cover, axostylus axostyle puts and is provided with internal thread; Center line along axostylus axostyle cover offers axis hole, and the outer wall of axostylus axostyle cover offers the first locating slot, and the outer wall radial direction of axostylus axostyle cover offers the first oil groove, and the first oil groove is provided with the first oilhole, the first oilhole communicates with axis hole, and shaft rod upper sleeve is provided with Sealing shield ring;
Axostylus axostyle cover is arranged with the first cam, spacer ring and the second cam from top to bottom successively; The outer wall of the first cam offers the second oilhole, the inwall of the first cam offers several the second locating slots, be provided with the first locating stud between first locating slot and the second locating slot, the first cam is provided with the first damping hole vertically, and the first damping hole communicates with the second oilhole;
Second cam is provided with the second damping hole, the inwall of the second cam is provided with the 3rd locating slot; The second locating stud is provided with between 3rd locating slot and the first locating slot;
Axostylus axostyle core comprises shaft, and shaft top is provided with termination, termination is provided with and holds groove; Center line along shaft offers oil duct, and oil duct is with to hold groove through;
The middle part of shaft is provided with the second oil groove, the second oil groove is provided with the 4th oilhole, the 4th oilhole and described oil duct through; The bottom of shaft is provided with outside thread; Shaft successively through the second cam, spacer ring and the first cam, and is arranged in axis hole, and shaft is connected with outside thread by internal thread with axostylus axostyle cover.
As preferably, the center line along spacer ring offers perforation, and spacer ring is set in axostylus axostyle by perforation and puts.
The invention has the beneficial effects as follows: the present invention has easy replacing, convenient for maintaining increases the service life, and the beneficial effect such as to reduce costs.
Accompanying drawing explanation
Fig. 1 is decomposition texture schematic diagram of the present invention.
Fig. 2 is the structural representation of an embodiment.
Fig. 3 is sectional structure schematic diagram of the present invention.
Fig. 4 is embodiment schematic diagram.
Embodiment
Below in conjunction with drawings and Examples
The invention will be further described:
As Figure 1-Figure 4, a kind of new type of cam axle construction, comprises axostylus axostyle 1 and axostylus axostyle core 11; Axostylus axostyle 1 is provided with axostylus axostyle cover 12, axostylus axostyle cover 12 is provided with internal thread 122; Center line along axostylus axostyle cover 12 offers axis hole 121, the outer wall of axostylus axostyle cover 12 offers the first locating slot 123, the outer wall radial direction of axostylus axostyle cover 12 offers the first oil groove 124, first oil groove 124 is provided with the first oilhole 125, first oilhole 125 communicates with axis hole 121, axostylus axostyle 1 is arranged with Sealing shield ring 126; This Sealing shield ring 126 is for carrying out spacing to the first cam 21.
Axostylus axostyle cover 12 is arranged with the first cam 21, spacer ring 3 and the second cam 22 from top to bottom successively; The outer wall of the first cam 21 offers the second oilhole 213, the inwall of the first cam 21 offers several the second locating slots 212, the first locating stud 4 is provided with between first locating slot 123 and the second locating slot 212, first cam 21 is provided with the first damping hole 211, first damping hole 211 vertically and communicates with the second oilhole 213;
Second cam 22 is provided with the second damping hole 221 and the 3rd oilhole 223, second damping hole 221 communicates with the 3rd oilhole 223, the inwall of the second cam 22 is provided with the 3rd locating slot 222; The second locating stud 41 is provided with between 3rd locating slot 222 and the first locating slot 123.The second locating slot 212 in the present invention and the 3rd locating slot 222 is corresponding with the first locating slot 123 arranges.
Axostylus axostyle core 11 comprises shaft 111, and shaft 111 top is provided with termination 112, termination 112 is provided with and holds groove 113; Center line along shaft 111 offers oil duct 114, and oil duct 114 is with to hold groove 113 through;
The middle part of shaft 111 is provided with that the second oil groove 115, second oil groove 115 to be provided with the 4th oilhole the 116, four oilhole 116 through with oil duct 114; The bottom of shaft 111 is provided with outside thread 117; Shaft 111 successively through the second cam 22, spacer ring 3 and the first cam 21, and is arranged in axis hole 121, and shaft 111 and axostylus axostyle are overlapped 12 and be connected with outside thread 117 by internal thread 122.Be connected with outside thread 117 by internal thread 122, can conveniently to replacing and the maintenance of the second cam 22, spacer ring 3, first cam 21 and axostylus axostyle 1.
Center line along spacer ring 3 offers perforation 31, and spacer ring 3 is set on axostylus axostyle cover 12 by perforation 31.This spacer ring 3 between the first cam 21 and the second cam 22, and is fitted with the first cam 21 and the second cam 22.
When engine manufacturer is for carrying out engine air admittance valve 51 and drain tap 52 opening and closing test, first the first cam 21 can be socketed on axostylus axostyle cover 12, first cam 21 is adjusted to required angle, after adjusting, first locating stud 4 is embedded between the second locating slot 212 and the first locating slot 123 again, thus fix the angle of the first cam 21.Perforation 31 is utilized by spacer ring 3 to be socketed on axostylus axostyle cover 12 subsequently, the lower end of the first cam 2 and Sealing shield ring 126 are fitted, fit in the upper end of the first cam 21 and the lower end of spacer ring 3, again the second cam 22 is set on axostylus axostyle cover 12 subsequently, now fit in the lower end of the second cam 22 and the upper end of spacer ring 3, second cam 22 is being adjusted to required angle, after adjusting, again the second locating stud 41 is embedded between the 3rd locating slot 222 and the first locating slot 123, thus the angle of fixing after the second cam 22 adjustment, thus make the angle forming presumptive test between the first cam 21 and the second cam 22.The camshaft that first cam 21 and the second cam 22 just can be preset rear angle by manufacturer is subsequently arranged in engine cylinder 5, and make air intake valve 51 and the drain tap 52 of the first cam 21 and the corresponding engine of the second cam 22 difference, subsequently, start the motor with assembling cam shaft, rotate to drive camshaft, now, camshaft in rotation contacts air intake valve 51 and the Rocker arm 5 11 of drain tap 52 according to the first cam 21 with the angle of assembling of the second cam 22, obtains the test result of engine with this.Simultaneously, while camshaft carries out operating, hold groove 113 be injected into oil duct 114 by logical for lubricant oil, centrifugal action when utilizing camshaft to rotate, can the lubricant oil in oil duct 114 be flow in the first oilhole 125 through the 4th oilhole 116, through the second damping hole 221 and the first damping hole 211, flowed out by the 3rd oilhole 223 and the second oilhole 213, thus utilize lubricant oil to play lubrication to the surface of the first cam 21 and the second cam 22 and Rocker arm 5 11, reduce the heat energy rubbing and produce, with increase the air intake valve 51 of engine and drain tap 52 than the smoothness with camshaft, effectively extend working life.
The present invention can convert arbitrarily the angle of the first cam 21 and the second cam 22, when manufacturer carries out engine development and testing, can according to needed for test, fast the first cam 21 and the second cam 22 are adjusted to required angle, effectively raise the testing efficiency of engine exploitation, moreover, do not need to change camshaft through test different amount, effectively save cost, in addition when the first cam 21, second cam 22 or axostylus axostyle 1 damage, can change separately, need not change whole device again, effectively save cost.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (2)
1. a new type of cam axle construction, is characterized in that: comprise axostylus axostyle (1) and axostylus axostyle core (11); Described axostylus axostyle (1) is provided with axostylus axostyle cover (12), described axostylus axostyle cover (12) is provided with internal thread (122); Center line along described axostylus axostyle cover (12) offers axis hole (121), the outer wall of described axostylus axostyle cover (12) offers the first locating slot (123), the outer wall radial direction of described axostylus axostyle cover (12) offers the first oil groove (124), described first oil groove (124) is provided with the first oilhole (125), described first oilhole (125) communicates with described axis hole (121), described axostylus axostyle (1) is arranged with Sealing shield ring (126);
Described axostylus axostyle cover (12) is arranged with the first cam (21), spacer ring (3) and the second cam (22) from top to bottom successively; The outer wall of described first cam (21) offers the second oilhole (213), the inwall of described first cam (21) offers several the second locating slots (212), the first locating stud (4) is provided with between described first locating slot (123) and described second locating slot (212), described first cam (21) is provided with the first damping hole (211) vertically, and described first damping hole (211) communicates with described second oilhole (213);
Described second cam (22) is provided with the second damping hole (221), and the inwall of described second cam (22) is provided with the 3rd locating slot (222); The second locating stud (41) is provided with between described 3rd locating slot (222) and described first locating slot (123);
Described axostylus axostyle core (11) comprises shaft (111), and described shaft (111) top is provided with termination (112), described termination (112) is provided with and holds groove (113); Center line along described shaft (111) offers oil duct (114), and described oil duct (114) is with described to hold groove (113) through;
The middle part of described shaft (111) is provided with the second oil groove (115), described second oil groove (115) is provided with the 4th oilhole (116), described 4th oilhole (116) is through with described oil duct (114); The bottom of described shaft (111) is provided with outside thread (117); Described shaft (111) is successively through described second cam (22), spacer ring (3) and described first cam (21), and being arranged in described axis hole (121), described shaft (111) is connected with described outside thread (117) by described internal thread (122) with described axostylus axostyle cover (12).
2. a kind of new type of cam axle construction as claimed in claim 1, it is characterized in that: the center line along described spacer ring (3) offers perforation (31), described spacer ring (3) is set on described axostylus axostyle cover (12) by described perforation (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814228.9A CN105370334B (en) | 2015-11-23 | 2015-11-23 | A kind of camshaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814228.9A CN105370334B (en) | 2015-11-23 | 2015-11-23 | A kind of camshaft structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105370334A true CN105370334A (en) | 2016-03-02 |
| CN105370334B CN105370334B (en) | 2018-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510814228.9A Active CN105370334B (en) | 2015-11-23 | 2015-11-23 | A kind of camshaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370334B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109276776A (en) * | 2018-10-31 | 2019-01-29 | 厚爱医疗仪器（江苏）有限公司 | A kind of fast regulating camshaft for medical infusion pump |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3140757A (en) * | 1962-05-28 | 1964-07-14 | Willys Motors Inc | Lubrication system |
| DE1295275B (en) * | 1965-05-25 | 1969-05-14 | Buckau Wolf Maschf R | Valve-controlled multi-cylinder internal combustion engine |
| US20020129782A1 (en) * | 2001-03-09 | 2002-09-19 | Yuichi Kawamoto | Over-head cam type V-type engine |
| EP1403497A1 (en) * | 2002-09-30 | 2004-03-31 | Honda Giken Kogyo Kabushiki Kaisha | Camshaft bearing structure for over-head camshaft type internal combustion engine |
| CN101086215A (en) * | 2006-06-07 | 2007-12-12 | 福特环球技术公司 | A camshaft system for an internal combustion engine |
| EP1963629A1 (en) * | 2005-12-15 | 2008-09-03 | Schaeffler KG | Camshaft adjuster |
| US20090169142A1 (en) * | 2007-12-31 | 2009-07-02 | Uwe Grass | Bearing device |
| CN201372820Y (en) * | 2009-03-23 | 2009-12-30 | 浙江和日摇臂有限公司 | Fixed seat of camshaft |
| CN101984223A (en) * | 2010-11-26 | 2011-03-09 | 奇瑞汽车股份有限公司 | Novel camshaft bearing seat |
| CN201771566U (en) * | 2010-08-27 | 2011-03-23 | 重庆长安汽车股份有限公司 | Single-air-inlet-side VVT engine camshaft bearing cap |
| CN205206894U (en) * | 2015-11-23 | 2016-05-04 | 重庆祥吉机械制造有限公司 | Novel camshaft structure |
-
2015
- 2015-11-23 CN CN201510814228.9A patent/CN105370334B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3140757A (en) * | 1962-05-28 | 1964-07-14 | Willys Motors Inc | Lubrication system |
| DE1295275B (en) * | 1965-05-25 | 1969-05-14 | Buckau Wolf Maschf R | Valve-controlled multi-cylinder internal combustion engine |
| US20020129782A1 (en) * | 2001-03-09 | 2002-09-19 | Yuichi Kawamoto | Over-head cam type V-type engine |
| EP1403497A1 (en) * | 2002-09-30 | 2004-03-31 | Honda Giken Kogyo Kabushiki Kaisha | Camshaft bearing structure for over-head camshaft type internal combustion engine |
| EP1963629A1 (en) * | 2005-12-15 | 2008-09-03 | Schaeffler KG | Camshaft adjuster |
| CN101086215A (en) * | 2006-06-07 | 2007-12-12 | 福特环球技术公司 | A camshaft system for an internal combustion engine |
| US20090169142A1 (en) * | 2007-12-31 | 2009-07-02 | Uwe Grass | Bearing device |
| CN201372820Y (en) * | 2009-03-23 | 2009-12-30 | 浙江和日摇臂有限公司 | Fixed seat of camshaft |
| CN201771566U (en) * | 2010-08-27 | 2011-03-23 | 重庆长安汽车股份有限公司 | Single-air-inlet-side VVT engine camshaft bearing cap |
| CN101984223A (en) * | 2010-11-26 | 2011-03-09 | 奇瑞汽车股份有限公司 | Novel camshaft bearing seat |
| CN205206894U (en) * | 2015-11-23 | 2016-05-04 | 重庆祥吉机械制造有限公司 | Novel camshaft structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105370334B (en) | 2018-01-16 |
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