CN106640249A - Engine camshaft duplex bevel gear transmission device - Google Patents
Engine camshaft duplex bevel gear transmission device Download PDFInfo
- Publication number
- CN106640249A CN106640249A CN201610875966.9A CN201610875966A CN106640249A CN 106640249 A CN106640249 A CN 106640249A CN 201610875966 A CN201610875966 A CN 201610875966A CN 106640249 A CN106640249 A CN 106640249A
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- China
- Prior art keywords
- helical gear
- wheel hub
- camshaft
- duplex
- hole
- 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.)
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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
- F01L1/026—Gear drive
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention belongs to the technical field of machines and provides an engine camshaft duplex bevel gear transmission device. The provided engine camshaft duplex bevel gear transmission device is provided with a duplex bevel gear composed of a large bevel gear (1) and a small bevel gear (12) which are integrally formed. 0-bit identifiers are marked on the two adjacent bevel gear end surfaces of the large bevel gear (1), a 0-bit identifier is also marked on one of the bevel gear end surfaces of the small bevel gear (12), and an included angle alpha is formed between the 0-bit identifier on the small bevel gear (12) and the center line of the two 0-bit identifiers on the large bevel gear (1). The center of the duplex bevel gear is provided with a wheel hub (5). The wheel hub (5) and the duplex bevel gear are integrally connected through a bolt. A camshaft (4) is installed in a center through hole of the wheel hub (5). A positioning pin shaft (10) is installed on the end surface of the camshaft and is located on the center line of the two 0-bit identifiers on the large bevel gear. A thrust ring assembly is further arranged on the transmission device. The engine camshaft duplex bevel gear transmission device has the characteristics of being good in maintainability, reliable in connection and high in bearing capacity.
Description
Technical field
The invention belongs to field of mechanical technique, and in particular to a kind of engine cam duplex helical gear actuating device.
Background technology
Cam shaft gear is the important force transferring part of electromotor, and it is the important bridge for connecting bent axle and camshaft, one
On a little higher diesel engines of reinforcing degree, cam shaft gear is more severe because to carry larger power, operating condition, its with it is convex
The quality of the mounting means of wheel shaft determines the working life of gear, and directly influences the whole aircraft reliability of electromotor；It is another
Aspect, because camshaft will transmit higher power, existing reinforcing h type engine h generally adopts helical teeth wheel construction, and this just can not keep away
Exempt from that gear can be made to produce axial thrust, how accurately to ensure gear axial gap and overcome axial force to be working gear reliability
It is crucial；Therefore, the mounting means of engine cam shaft gear must science, reasonable and reliability height.Available engine camshaft
The installation of gear is typically using such as patent《Camshaft and timing gears attachment structure》（CN103967952）Shown structure, it is this
By installed in middle single bolt connection between the cam shaft gear and camshaft of structure, due to by camshaft structure
Limit, the diameter of connecting bolt is unsuitable excessive, and this just makes single bolt bear larger axial force, and bolt is for a long time in higher load
Easily produce to loosen when working under lotus and even rupture, and can there is larger swing in course of work middle gear, have influence on gear
Normal engagement；On the other hand, the axial thrust that cam shaft gear is produced can make camshaft produce axial motion, it is necessary to install thrust
Ring, because thrust ring is consumable accessory, needs make regular check on replacing, and the thrust ring mentioned in foregoing invention is not installed on gear
End, causes thrust ring dismounting extremely difficult.
The content of the invention
To solve above-mentioned technical problem, the purpose of the present invention is to propose to a kind of engine cam duplex helical gear transmission dress
Put so as to maintainability is good, connection reliability and the characteristics of high capacity.
The present invention completes its invention task using following technical proposals：
A kind of engine cam duplex helical gear actuating device, described actuating device has by integrally formed big helical teeth
The duplex helical gear that wheel, bevel pinion are constituted；Large helical gear described in duplex helical gear is arranged concentrically with described bevel pinion,
And large helical gear, the profile of tooth of bevel pinion described in duplex helical gear be it is left-handed；The two neighboring helical teeth end face of the large helical gear
On be marked with 0 bit-identify, one of helical teeth end face of the bevel pinion is also marked with 0 bit-identify, and on bevel pinion
0 bit-identify is α with the angle of two 0 bit-identify centrages on large helical gear, and α angles determine the port timing of electromotor；
The duplex helical gear is provided centrally with wheel hub, and described wheel hub is bolted as one with described duplex helical gear
Body；Described wheel hub is ladder shaft-like structure, and the center of wheel hub has the through hole passed through to camshaft；In the wheel hub
Described camshaft is installed in heart through hole；The camshaft is stretched with described wheel hub interference fit, and the right-hand member of the camshaft
Go out described wheel hub；There is positioning boss on the right-hand member periphery of the camshaft；It is fixed to be provided with the end face of the camshaft
Position bearing pin, and described alignment pin is on the centrage of two 0 bit-identifies on large helical gear；Described actuating device also sets
It is equipped with thrust ring assemblies；Described thrust ring assemblies include locating ring, thrust ring, plug and bolt；Described positioning ring set
Put on described camshaft, and with described camshaft interference fit；Its right end face of the locating ring and institute on camshaft
The positioning boss stated is in close contact, and has gap between the left end face of the locating ring and its right end face of wheel hub；Described
Thrust ring is semicircle ring structure, is filled between locating ring and wheel hub, and is bolted on body.
The center of the duplex helical gear has to the through hole of installation wheel hub, and described through hole is ladder hole；Duplex
There are the multiple through holes I being along the circumferential direction distributed on the end face of the helical gear ladder hole, and two on large helical gear
Two through holes I of individual 0 bit-identify both sides are different from the angle angle of two 0 bit-identify centrages, and angle is respectively A, B.
Described wheel hub is the ladder shaft-like structure being made up of three sections of multidiameters, wherein, left section of hardening on stepped shaft neck minimum, in
Between section multidiameter it is maximum；Match somebody with somebody in the ladder hole gap being relatively large in diameter on the interlude multidiameter of wheel hub and duplex helical gear
Close.
There are circumferential multiple lightening holes on the end face of the wheel hub.
On described wheel hub have multiple tapped through holes being along the circumferential direction distributed, and the tapped through hole on wheel hub with
Through hole I on duplex helical gear is corresponded.
The center of the thrust ring has the groove to avoid locating ring；There is axial oilhole on the bottom surface of the groove
Ⅱ；Described axial oilhole II is through hole；Also there is the axial oilhole I for blind hole structure on described thrust ring；Described stops
Also there is the radial direction oil hole for blind hole structure on throw-out collar；Described radial direction oil hole is connected respectively with axial oilhole I, axial oilhole II
It is logical；The opening of the radial direction oil hole is sealed by plug.
There are two shoulder holes passed through to bolt, described thrust ring is tight by two bolts on described thrust ring
Gu on body end face.
A kind of engine cam duplex helical gear actuating device proposed by the present invention, camshaft duplex helical gear is using whole
Body formula structure, compared with bolt connecting type structure, gear inner side can process many loss of weight chambers, and gear weight mitigates more,
This can significantly mitigate the camshaft bearing near gear end for the electromotor installed using cam shaft gear cantilever
Load；Fastened using multiple connecting bolts between camshaft duplex helical gear and wheel hub, compared with single bolt is fastened, fastening is more
Plus it is firm, axial force suffered by single bolt is less, while avoiding gear swing in the course of the work；Camshaft duplex helical teeth
The wheel belt runner hub and locating ring left and right vibration in the presence of axial force, thrust ring is by the axial motion of camshaft duplex helical gear
Amount is limited within the specific limits, and thrust ring is divided into some shelves by thickness difference, can match during installation, and the string quantity of motion of gear is controlled
In 0.1～0.25mm, electromotor can change the thrust ring of suitable thickness in overhaul according to abrasion condition, and aspect is compared in maintenance；
Force feed mode is adopted between thrust ring and wheel hub, the oilhole on pressure machine oil slave body is entered, by the axle on thrust ring
To oilhole and radial direction oil hole, cooperation pressure lubrication oil being respectively delivered between thrust ring and locating ring, thrust ring and wheel hub
On face, each matching surface is sufficiently lubricated and is cooled down, extend the service life of thrust ring assemblies, pass gear train
It is dynamic more reliable.
Description of the drawings
Fig. 1 is sectional arrangement drawing of the present invention.
Fig. 2 is the installation sectional view of convexity wheel shaft of the present invention, wheel hub and locating ring.
Fig. 3 is the A-A sectional views of Fig. 2.
Fig. 4 is the structural representation of thrust ring in the present invention.
Fig. 5 is the B-B sectional views of Fig. 4.
In figure：1st, large helical gear；2nd, bolt；3rd, pad；4th, camshaft；5th, wheel hub；6th, body；7th, locating ring；8th, thrust
Ring；9th, bolt；10th, alignment pin, 11, through hole I；12nd, bevel pinion, 13, axial oilhole I；14th, plug；15th, radial direction oil hole；
16th, axial oilhole II, 17, positioning boss；18th, groove；19th, shoulder hole.
Specific embodiment
The present invention is illustrated with reference to the drawings and specific embodiments：
As shown in figure 1, and with reference to Fig. 2, Fig. 3, a kind of engine cam duplex helical gear actuating device, described actuating device
With the duplex helical gear being made up of integrally formed large helical gear 1, bevel pinion 12；Large helical gear described in duplex helical gear
1 is arranged concentrically with described bevel pinion 12, and large helical gear 1, the profile of tooth of bevel pinion 12 are a left side described in duplex helical gear
Rotation；0 bit-identify is marked with the two neighboring helical teeth end face of the large helical gear 1, one of them of the bevel pinion 12 is oblique
Increment face is also marked with 0 bit-identify and two 0 bit-identify centrages on large helical gear 1 on 0 bit-identify, and bevel pinion 12
Angle be α, α angles determine the port timing of electromotor；The center of the duplex helical gear has to the logical of installation wheel hub 5
Hole, described through hole is ladder hole；Have what is be along the circumferential direction distributed on the end face of the ladder hole of duplex helical gear
Six through holes I 11, and two through holes I 11 of two 0 bit-identify both sides and two 0 bit-identify centrages on large helical gear
Angle angle is different, and angle is respectively A, B, and the angle angle between four additional through hole I 11 is identical；
The duplex helical gear is provided centrally with wheel hub 5, and described wheel hub 5 is bolted with described duplex helical gear
It is integrated；Described wheel hub 5 is ladder shaft-like structure, and the center of wheel hub 5 has the through hole passed through to camshaft 4；It is described
Described camshaft 4 is installed in the central through hole of wheel hub 5；The camshaft 4 and the described interference fit of wheel hub 5, and it is described convex
The right-hand member of wheel shaft 4 stretches out described wheel hub 5；There is positioning boss 17 on the right-hand member periphery of the camshaft 4；The camshaft
End face on alignment pin 10 is installed, and described alignment pin 10 is located at the centrage of two 0 bit-identifies on large helical gear
On；Described actuating device is additionally provided with thrust ring assemblies；Described thrust ring assemblies include locating ring 7, thrust ring 8, block up
14 and bolt；Described locating ring 7 is nested with described camshaft 4, and with the described interference fit of camshaft 4；It is described
Its right end face of locating ring 7 is in close contact with positioning boss 17 described on camshaft, left end face and the wheel of the locating ring 7
There is gap between its right end face of hub 5；Described thrust ring 9 is semicircle ring structure, is filled between locating ring 7 and wheel hub 8,
And be fixed on body 6 by bolt 9.
Described wheel hub 5 is the ladder shaft-like structure being made up of three sections of multidiameters, wherein, left section of hardening on stepped shaft neck minimum,
Interlude multidiameter is maximum；Match somebody with somebody in the ladder hole gap being relatively large in diameter on the interlude multidiameter of wheel hub and duplex helical gear
Close.
There are circumferential multiple lightening holes 6 on the end face of the wheel hub 5.
There is multiple tapped through holes being along the circumferential direction distributed, and the tapped through hole on wheel hub on described wheel hub 5
Correspond with the through hole I 11 on duplex helical gear.
With reference to Fig. 4, Fig. 5, the center of the thrust ring 8 has the groove 18 to avoid locating ring；The groove 18
There is axial oilhole II 16 on bottom surface；Described axial oilhole II 16 is through hole；Also have on described thrust ring for blind hole knot
The axial oilhole I 13 of structure；Also there is the radial direction oil hole 15 for blind hole structure on described thrust ring；15 points of described radial direction oil hole
It is not connected with axial oilhole I 13, axial oilhole II 16；The opening of the radial direction oil hole 14 is sealed by plug 14.
There are two shoulder holes 19 passed through to bolt, described thrust ring passes through two spiral shells on described thrust ring 8
Bolt is fastened on body end face.
After wheel hub 5 and the interference of camshaft 4 are installed, on the basis of the alignment pin 10, it is located at alignment pin 10 big oblique
On gear on the centrage of two 0 bit-identifies；Six tapped through holes, six on wheel hub 5 screwed hole are processed on the end face of wheel hub 5
It is just right with six through holes I 11 on camshaft duplex helical gear 1 respectively, and by six bolts 2 and pad 3 by camshaft duplex
Helical gear 1 and wheel hub 5 tighten together.
A kind of engine cam duplex helical gear actuating device installation method of the present invention：First by the mistake of wheel hub 5
It is full of on camshaft 4,6 tapped through holes is processed on the end face of wheel hub 5；Thrust ring 8 is fastened on into body 6 with 2 bolts 9
On, it is then that 6 through holes on camshaft duplex helical gear 1 are just right with 6 tapped through holes on wheel hub 5, with 6 Hes of bolt 2
Pad 3 is fastened on camshaft duplex helical gear 1 on wheel hub 5, disk moving cam axle 4, measures the axial string momentum a of camshaft 4 and is
It is no to meet the requirements.
A kind of engine cam duplex helical gear gear lubrication principle of the present invention：Pressure machine oil slave body
Oilhole on 6 flows into the axial oilhole I 13 on thrust ring 8, and Jing radial direction oil holes I 15 enter axial oilhole II 16, by axial oil
Hole II 16 respectively enters its right end face of thrust ring 8 with the left end face of the mating surface of locating ring and thrust ring 8 and matching somebody with somebody for wheel hub 5
Conjunction face, realizes the lubrication of each mating area.
Claims (7)
1. a kind of engine cam duplex helical gear actuating device, it is characterised in that：Described actuating device has by one
The large helical gear of molding（1）, bevel pinion（12）The duplex helical gear of composition；Large helical gear described in duplex helical gear（1）With
Described bevel pinion（12）It is arranged concentrically, and big helical teeth described in duplex helical gear（1）Wheel, bevel pinion（12）Profile of tooth be
It is left-handed；The large helical gear（1）0 bit-identify, the bevel pinion are marked with two neighboring helical teeth end face（12）Wherein
One helical teeth end face is also marked with 0 bit-identify, and bevel pinion（12）Upper 0 bit-identify and large helical gear（1）Upper two 0
The angle of mark centrage is α, and α angles determine the port timing of electromotor；The duplex helical gear is provided centrally with wheel hub
（5）, described wheel hub（5）It is bolted with described duplex helical gear and is integrated；Described wheel hub（5）For ladder shaft-like
Structure, and wheel hub（5）Center have to camshaft（4）The through hole for passing through；The wheel hub（5）Central through hole in install institute
The camshaft stated（4）；The camshaft（4）With described wheel hub（5）Interference fit, and the camshaft（4）Right-hand member stretch out
Described wheel hub（5）；The camshaft（4）Right-hand member periphery on have positioning boss（17）；On the end face of the camshaft
Alignment pin is installed（10）, and described alignment pin（10）On the centrage of two 0 bit-identifies on large helical gear；Institute
The actuating device stated is additionally provided with thrust ring assemblies；Described thrust ring assemblies include locating ring（7）, thrust ring（8）, plug
（14）And bolt；Described locating ring（7）It is nested with described camshaft（4）On, and with described camshaft（4）Interference is matched somebody with somebody
Close；The locating ring（7）Its right end face and camshaft on described positioning boss（17）It is in close contact, the locating ring（7）
Left end face and wheel hub（5）Its right end face between have gap；Described thrust ring（8）For semicircle ring structure, it is filled in
Locating ring（7）With wheel hub（8）Between, and it is bolted on body（6）On.
2. a kind of engine cam duplex helical gear actuating device as claimed in claim 1, it is characterised in that：The duplex
Helical gear center has to installation wheel hub（5）Through hole, described through hole is ladder hole；The rank of duplex helical gear
There are the multiple through holes I being along the circumferential direction distributed on the end face of terraced through hole（11）, and two 0 bit-identifies two on large helical gear
Two through holes I of side（11）Different from the angle angle of two 0 bit-identify centrages, angle is respectively A, B.
3. a kind of engine cam duplex helical gear actuating device as claimed in claim 1, it is characterised in that：Described wheel
Hub（5）It is the ladder shaft-like structure being made up of three sections of multidiameters, wherein, left section of hardening on stepped shaft neck minimum, interlude multidiameter is most
Greatly；The ladder hole gap being relatively large in diameter on the interlude multidiameter and duplex helical gear of wheel hub coordinates.
4. a kind of engine cam duplex helical gear actuating device as claimed in claim 1, it is characterised in that：The wheel hub
（5）End face on have circumferential multiple lightening holes（6）.
5. a kind of engine cam duplex helical gear actuating device as claimed in claim 1, it is characterised in that：Described wheel
Hub（5）It is upper to have on multiple tapped through holes being along the circumferential direction distributed, and the tapped through hole on wheel hub and duplex helical gear
Through hole I（11）Correspond.
6. a kind of engine cam duplex helical gear actuating device as claimed in claim 1, it is characterised in that：The thrust
Ring（8）Center there is groove to avoid locating ring（18）；The groove（18）Bottom surface on there is axial oilhole II
（16）；Described axial oilhole II（16）For through hole；Also there is the axial oilhole I for blind hole structure on described thrust ring
（13）；Also there is the radial direction oil hole for blind hole structure on described thrust ring（15）；Described radial direction oil hole（15）Respectively with axle
To oilhole I（13）, axial oilhole II（16）It is connected；The radial direction oil hole（14）Opening by plug（14）Sealing.
7. a kind of engine cam duplex helical gear actuating device as claimed in claim 1, it is characterised in that：Described stops
Throw-out collar（8）It is upper that there are two shoulder holes passed through to bolt（19）, described thrust ring is fastened on body by two bolts
On end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610875966.9A CN106640249B (en) | 2016-11-17 | 2016-11-17 | A kind of engine cam duplex helical gear transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610875966.9A CN106640249B (en) | 2016-11-17 | 2016-11-17 | A kind of engine cam duplex helical gear transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106640249A true CN106640249A (en) | 2017-05-10 |
| CN106640249B CN106640249B (en) | 2019-06-07 |
Family
ID=58854316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610875966.9A Active CN106640249B (en) | 2016-11-17 | 2016-11-17 | A kind of engine cam duplex helical gear transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640249B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044324A (en) * | 2017-12-17 | 2018-05-18 | 江苏威鹰机械有限公司 | Automatic gearbox sun gear manufacturing process and its cold forging Extruding die |
| CN108915814A (en) * | 2018-08-28 | 2018-11-30 | 河南柴油机重工有限责任公司 | A kind of common rail diesel engine camshaft drive |
| CN111140348A (en) * | 2019-10-09 | 2020-05-12 | 河南柴油机重工有限责任公司 | Intermediate gear transmission device of sea water pump driven by diesel engine |
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| EP0741235A2 (en) * | 1995-05-04 | 1996-11-06 | Ford Motor Company Limited | Dual output camshaft phase controller |
| US5673659A (en) * | 1995-06-22 | 1997-10-07 | Chrysler Corporation | Lead screw driven shaft phase control mechanism |
| CN201090253Y (en) * | 2007-08-23 | 2008-07-23 | 重庆建设摩托车股份有限公司 | Distribution transmission mechanism of motorcycle engine |
| CN104214206A (en) * | 2014-08-28 | 2014-12-17 | 河南柴油机重工有限责任公司 | Thrust device of engine camshaft |
| CN204458784U (en) * | 2014-12-22 | 2015-07-08 | 潍柴动力股份有限公司 | A kind of camshaft thrust structure |
| CN105298571A (en) * | 2015-11-29 | 2016-02-03 | 重庆元创汽车整线集成有限公司 | Axial limiting structure for cam shaft |
| CN206205945U (en) * | 2016-11-17 | 2017-05-31 | 河南柴油机重工有限责任公司 | A kind of engine cam duplex helical gear transmission device |
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2016
- 2016-11-17 CN CN201610875966.9A patent/CN106640249B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0741235A2 (en) * | 1995-05-04 | 1996-11-06 | Ford Motor Company Limited | Dual output camshaft phase controller |
| US5673659A (en) * | 1995-06-22 | 1997-10-07 | Chrysler Corporation | Lead screw driven shaft phase control mechanism |
| CN201090253Y (en) * | 2007-08-23 | 2008-07-23 | 重庆建设摩托车股份有限公司 | Distribution transmission mechanism of motorcycle engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044324A (en) * | 2017-12-17 | 2018-05-18 | 江苏威鹰机械有限公司 | Automatic gearbox sun gear manufacturing process and its cold forging Extruding die |
| CN108915814A (en) * | 2018-08-28 | 2018-11-30 | 河南柴油机重工有限责任公司 | A kind of common rail diesel engine camshaft drive |
| CN108915814B (en) * | 2018-08-28 | 2023-10-20 | 河南柴油机重工有限责任公司 | Cam shaft driving device of common rail diesel engine |
| CN111140348A (en) * | 2019-10-09 | 2020-05-12 | 河南柴油机重工有限责任公司 | Intermediate gear transmission device of sea water pump driven by diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106640249B (en) | 2019-06-07 |
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