CN104791037B - Engine cam shaft timing angle adjusting device and machining method of adjusting device - Google Patents
Engine cam shaft timing angle adjusting device and machining method of adjusting device Download PDFInfo
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- CN104791037B CN104791037B CN201510121585.7A CN201510121585A CN104791037B CN 104791037 B CN104791037 B CN 104791037B CN 201510121585 A CN201510121585 A CN 201510121585A CN 104791037 B CN104791037 B CN 104791037B
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Abstract
The invention provides a cam shaft timing angle adjusting device applied to the technical field of engine air valve timing parts and further relates to a machining method of the adjusting device. Each rudder piece (4) of the adjusting device is movably arranged in a cavity (5), an oil cavity A (6) and an oil cavity B (7) are respectively formed between two sides of each rudder piece (4) and the cavity (5), a locking hole (10) is formed in the bottom face of one cavity (5) of a stator (2), a locking part (11) is arranged on the rudder piece (4) located in the cavity (5) provided with the locking hole (10), and the locking hole (10) is communicated with a rotor oil way A (8). The cam shaft timing angle adjusting device can control advanced or delayed closing of an engine air intake and exhaust valve and ensure that timing angles during engine starting are all located at the same position, and hard anodizing treatment is conducted on aluminum alloy anodes on the surfaces of the stator and a rotor, so that the reliability of the adjusting device is effectively improved.
Description
Technical field
The invention belongs to engine valve timing component technology field, is to be related to a kind of engine cam more specifically
Axle timing angle adjusting means, the processing method that the present invention also relates to described adjusting means.
Background technology
In the prior art, the A1 of Germany Patent document DE 101 34 320 disclose a kind of with for adjusting camshaft
The internal combustion engine of the hydraulic means that anglec of rotation classification is constituted, the hydraulic means can change the phase place of camshaft relative to bent axle.This
Kind of hydraulic means is made up of rotor and stator, wherein constitute as impeller the former include camshaft, it is and synchronous with hydraulic means
Rotation.Stator side is close by travelling gear pressure oil by the end wall and opposite side that can be the shell part for surrounding stator
Envelope closing.Stator include rotor and with the travelling gear synchronous rotary by transmission of crankshaft.The company being generally radially distributed in stator
Connect the pressure that wall only allows the limited anglec of rotation of rotor and multiple press filling or hydraulic fluids of unstowing are constituted with the rotor
Power room.However, the shortcoming of this device is, can control camshaft relative to bent axle in advance or it is delayed rotate to an angle, but
When engine shutdown or low cruise, it is impossible to which timing angle is all in same position when can guarantee that engine starts every time.With
This simultaneously, the part of the device mainly crosses cutting manufacture by steel or Tie Tong.Thereby resulting in steel part or ironware has the device
Very high weight, is unfavorable for car load lightweight, and steel part or ironware add man-hour cutting costly, cause processing cost to increase,
It is rigidly connected between stator and belt wheel, is easily caused oil seepage, affects device normal work and performance.
The content of the invention
The technical problem to be solved is：For deficiency of the prior art, there is provided a kind of simple structure, sending out
When motivation works, can control camshaft relative to bent axle in advance or it is delayed rotate to an angle, enter row so as to control engine
Gas valve shifts to an earlier date or delayed closing, when engine shutdown or low cruise, positive hour angle when can guarantee that engine starts every time again
Spend the engine cam timing angle adjusting means all in same position.
Techniques discussed above is solved the problems, such as, the technical scheme that the present invention takes is：
The present invention is a kind of engine cam timing angle adjusting means, and described adjusting means includes rotor, stator,
Belt wheel is fixedly connected by bolt and alignment pin with stator, and rotor is fixedly connected with camshaft, and multiple rudder pieces are arranged on rotor, fixed
Multiple die cavities are set, and each rudder piece is movably arranged in a die cavity, each rudder piece both sides is formed respectively between die cavity on son
Oil pocket A and oil pocket B, oil pocket A are connected with rotor oil duct A, and oil pocket B is connected with rotor oil duct B, on the bottom surface of a die cavity of stator
Locking hole is set, locking component is set on the rudder piece in the die cavity that locking hole is set, described locking hole and rotor oil duct A
Connection.
Described rotor and stator is aluminum alloy materials, and rotor is connected with camshaft by centre bolt, rotor oil duct A
Connect with the centre bolt oil duct arranged on the centre bolt of camshaft, described rotor oil duct B is connected with camshaft oil gallery.
Leaf spring and plastic sealing strip are respectively mounted on each rudder piece of described rotor, described plastic sealing strip is set to
The structure of sealing is contacted with stator type cavity wall.
Described locking component includes the open hole liners being arranged on a rudder piece, and elastic pressuring spring element lower end is opened with setting
The bottom connection of hole bushing, rudder piece bottom is provided with oil leak hole and connects with rotor oil duct B, the elastic pressuring spring element other end and lock pin
Connection, during the non-oil-feeds of rotor oil duct A, lock pin is configured to the structure being inserted in locking hole.
Described stator is fixedly connected by alignment pin and multiple connecting bolts with band wheel side, is set in the edge portion of stator
Put along the edge portion groove of a week, with arranging on wheel side along the concave plane of belt wheel side arrangement, clamp fluorubber is close in groove
Sealing structure is formed between seal, described groove and concave plane.
Described rotor is fixedly connected by centre bolt with camshaft.
The present invention also relates to a kind of processing method of engine cam timing angle adjusting means, described regulation
During the stator processing of device, stator interior die cavity and outer shape by smart extrusion process shaping, stator blank in processing end face,
Carry out surface aluminum alloy anode hardening oxidation to stator again, stator processing is completed, the rudder piece of rotor is molded by smart extrusion process,
Rotor blank processes front/rear end, then surface aluminum alloy anode hardening oxidation is carried out to rotor, and rotor machining is completed.
During the stator processing of described adjusting means, stator blank only processes front/rear end and rudder piece near the one of die cavity
Face, when surface aluminum alloy anode hardening oxidation is carried out to stator, oxide thickness is controlled between 5um -45um, stator surface
Hardness reaches more than HV400, and stator processing is completed；During the rotor machining of adjusting means, rotor blank only processes front/rear end, right
When rotor carries out surface aluminum alloy anode hardening oxidation, rotor surface oxide thickness is controlled between 5um -45um, and surface is hard
Degree reaches more than HV400, and rotor machining is completed.
Using technical scheme, following beneficial effect can be obtained：
Engine cam timing angle adjusting means of the present invention, when in use, can be by controlling rotor rudder
Piece is rotated in the die cavity of stator, so as to realize camshaft relative to bent axle in advance or it is delayed rotate a certain angle, control is sent out
Motivation intake and exhaust valve shifts to an earlier date or delayed closing.And pass through to arrange locking component and locking hole, when engine is shut down or low speed fortune
During row, because oil pressure is reduced, in the locking hole that locking component is locked on stator again, i.e., rotor and stator relative can not turn
It is dynamic, so as to timing angle is all same position when ensureing that engine starts every time.Said structure, simple structure is easy to use, property
Can be reliable.The processing method of engine cam timing angle adjusting means of the present invention, by stator, rotor surface
Using aluminum alloy anode hardening oxidation, the case hardness and wearability of stator and rotor can be effectively improved, it is ensured that stator and turn
Son adapts to severe working environment, improves the functional reliability of adjusting means, extends the adjusting means life-span, and stator, rotor are adopted
With aluminium alloy essence extrusion forming blank, short with process time beat, the cost of charp tool is low, the advantages of lightweight.
Description of the drawings
Below brief description is made to the content and the mark in figure expressed by each accompanying drawing of this specification：
Fig. 1 is the cross section structure diagram of engine cam timing angle adjusting means of the present invention
Fig. 2 is the broken section structural representation of engine cam timing angle adjusting means of the present invention；
Fig. 3 is the internal structure schematic diagram of engine cam timing angle adjusting means of the present invention；
Fig. 4 is the structural representation of the stator of engine cam timing angle adjusting means of the present invention；
Accompanying drawing acceptance of the bid note is respectively：1st, rotor；2nd, stator；3rd, camshaft；4th, rudder piece；5th, die cavity；6th, oil pocket A；7th, oil pocket
B；8th, rotor oil duct A；9th, rotor oil duct B；10th, locking hole；11st, locking component；12nd, belt wheel；13rd, open hole liners；14th, elasticity pressure
Spring element；15th, lock pin；16th, edge portion；17th, groove；18th, concave plane；19th, viton seal ring；20th, centre bolt；21、
Alignment pin；22nd, leaf spring；23rd, plastic sealing strip；24th, magnetic valve；25th, centre bolt oil duct；26th, camshaft oil gallery.
Specific embodiment
Below against accompanying drawing, by the description to implementing, each component for example involved to the specific embodiment of the present invention
Shape, the mutual alignment between construction, each several part and annexation, the effect of each several part and operation principle etc. make further
Describe in detail：
It is of the invention for a kind of engine cam timing angle adjusting means, described tune as shown in 1-accompanying drawing of accompanying drawing 4
Regulating device includes rotor 1, and stator 2, belt wheel 12 is fixedly connected by bolt and alignment pin 21 with stator 2, rotor 1 and camshaft 3
It is fixedly connected, multiple rudder pieces 4 is set on rotor 1, multiple die cavities 5 are set on stator 2, each rudder piece 4 is movably arranged on a type
In chamber 5, each both sides of rudder piece 4 forms respectively oil pocket A6 and oil pocket B7 between die cavity 5, and oil pocket A6 is connected with rotor oil duct A8,
Oil pocket B7 is connected with rotor oil duct B9, and locking hole 10 is arranged on the bottom surface of a die cavity 5 of stator 2, positioned at setting locking hole 10
Die cavity 5 in rudder piece 4 on locking component 11 is set, described locking hole 10 connects with rotor oil duct A8.By said structure,
When camshaft timing angle regulator is installed to engine cylinder to be covered, belt wheel 12 is fixed on by belt with bent axle torque resistant
Together；Rotor 1 is fixed together by centre bolt 20 with the torque resistant of camshaft 3.When engine works, rotor oil duct A8 starts
Oil-feed, rotor oil duct B9 starts draining, and oil pocket A6 oil pressure reaches a timing, and lock pin 15 is pushed in open hole liners 13, oil pocket
The rudder piece 4 of the oil pressure drive rotor of A6 to oil pocket B7 rotates, and the relative stator 2 of rotor 1 rotates against certain angle, i.e. camshaft phase
For bent axle in advance or it is delayed rotate a certain angle, so as to control engine breathing valve in advance or delayed closing；When turn
Seed oil road A8 starts emptying, contrary with upper when rotor oil duct B9 starts oil-feed.Enter to unload with regard to rotor oil duct A8 and rotor oil duct B9
Oily operating mode, by Engine ECU control magnetic valve 24 determination is switched.And pass through to arrange locking component and locking hole, when engine stops
When machine or low cruise, because oil pressure is reduced, in the locking hole that locking component is locked on stator again, i.e., rotor and stator be not
Can relatively rotate, so as to timing angle is all same position when ensureing that engine starts every time.Said structure, simple structure makes
With convenient, dependable performance.
Described rotor 1 and stator 2 is aluminum alloy materials, and rotor 1 is connected with camshaft 3 by centre bolt 20, turns
Seed oil road A8 is connected with the centre bolt oil duct 25 arranged on the centre bolt 20 of camshaft 3, rotor oil duct B9 and cam shafting oil
Road 26 is connected.When engine works, rotor oil duct A8 starts oil-feed, and rotor oil duct B9 starts draining, and oil pocket A6 oil pressure reaches one
Regularly, lock pin 15 is pushed in open hole liners 13, and the oil pressure of oil pocket A6 promotes rudder piece 4 to oil pocket B7 rotations, and rotor 1 is relatively fixed
Son 2 rotates against certain angle.It is contrary with said process when rotor oil duct A8 starts emptying, and rotor oil duct B9 starts oil-feed.
Leaf spring 22 and plastic sealing strip 23, described plastic sealing strip are respectively mounted on each rudder piece 4 of described rotor 1
23 are set to contact the structure of sealing with the inwall of 2 die cavity of stator 5, and the flexible sealing structure can effectively evade rigid original paper and move
Inordinate wear problem caused by sealing.Equipped with leaf spring 22 and plastic sealing strip 23 on each rudder piece 4, oil pocket A6 and the chambers of oil pocket B7 two are made
Between oil leakage it is less, it is ensured that when oil pocket A6 and oil pocket B7 single-chamber oil-feeds, there is larger pressure differential, it is ensured that the device energy between two chambers
Enough meet engine phase modulation rate request.
Described locking component 11 includes the open hole liners 13 being arranged on a rudder piece 4, the lower end of elastic pressuring spring element 14
It is connected with the bottom for arranging open hole liners 13, the bottom of rudder piece 4 is provided with oil leak hole and connects with rotor oil duct B9, elastic pressuring spring element 14
The other end is connected with lock pin 15, and during the non-oil-feeds of rotor oil duct A8, lock pin 15 is configured to be inserted in locking hole 10
Structure.When the lock pin 15 of locking component 11 is not affected by enough oil pressure pressure, lock pin 15 is acted in elastic pressuring spring element 14
Under it is protruding, inserting prevents rotor 1 and stator 2 from relatively rotating, it is ensured that positive hour angle when engine starts every time to locking hole 10
Degree is all same position.
In described adjusting means, stator 2 is fixedly connected by alignment pin 21 and multiple connecting bolts with the side of belt wheel 12,
Arrange in the edge portion 16 of stator 2 and arrange along the edge portion groove of 16 1 weeks 17, the side of belt wheel 12 along the side arrangement of belt wheel 12
Concave plane 18, clamp viton seal ring 19 in groove 17 forms sealing structure between described groove 17 and concave plane 18.
The setting of viton seal ring 19, it is ensured that formed between stator 2 and the side of belt wheel 12 and reliably sealed, it is to avoid the oil in stator 2
Outwards ooze out, affect whole device and engine reliable work, realize sealing reliability, that is, improve device and engine
Overall performance.
Described rotor 1 is fixedly connected by centre bolt 20 with camshaft 3.
The present invention also relates to a kind of processing method of engine cam timing angle adjusting means, described regulation
The stator 2 of device plus man-hour, the inside die cavity 5 of stator 2 and outer shape carry out surface by smart extrusion process shaping to stator 2
Aluminum alloy anode hardening oxidation, stator 2 is machined, and the rudder piece 4 of rotor 1 is by smart extrusion process shaping, the processing of the blank of rotor 1
Front/rear end, then surface aluminum alloy anode hardening oxidation is carried out to rotor, rotor 1 is machined.Started by described above
The processing method of machine camshaft timing angle regulator, can effectively improve the case hardness of stator 2 and rotor 1 and wear-resisting
Property, improve adjusting means reliability.Using aluminium alloy essence extrusion forming blank and short with process time beat, the cost of charp tool is low,
Lightweight the advantages of.
The stator 2 of described adjusting means plus man-hour, the blank of stator 2 only processes front/rear end and rudder piece 4 near die cavity 5
Simultaneously, when carrying out surface aluminum alloy anode hardening oxidation to stator 2, oxide thickness is controlled between 5um -45um, stator 2
Case hardness reaches more than HV400, and stator 2 is machined；The rotor 1 of adjusting means plus man-hour, before and after the blank of rotor 1 is only processed
End face, when surface aluminum alloy anode hardening oxidation is carried out to rotor 1, the surface film oxide THICKNESS CONTROL of rotor 1 5um -45um it
Between, case hardness reaches more than HV400, and rotor 1 is machined.By above-mentioned process, aluminium is adopted to stator, rotor surface
Alloy anode hardening oxidation, can effectively improve the case hardness and wearability of stator and rotor, it is ensured that stator and rotor are adapted to
Severe working environment, improves the functional reliability of adjusting means, extends the adjusting means life-span, and stator, rotor are closed using aluminium
Aurin extrusion forming blank, short with process time beat, the cost of charp tool is low, the advantages of lightweight.
Engine cam timing angle adjusting means of the present invention, when in use, can be by controlling rotor rudder
Piece is rotated in the die cavity of stator, so as to realize camshaft relative to bent axle in advance or it is delayed rotate a certain angle, control is sent out
Motivation intake and exhaust valve shifts to an earlier date or delayed closing.And pass through to arrange locking component and locking hole, when engine is shut down or low speed fortune
During row, because oil pressure is reduced, in the locking hole that locking component is locked on stator again, i.e., rotor and stator relative can not turn
It is dynamic, so as to timing angle is all same position when ensureing that engine starts every time.Said structure, simple structure is easy to use, property
Can be reliable.The processing method of engine cam timing angle adjusting means of the present invention, by stator, rotor surface
Using aluminum alloy anode hardening oxidation, the case hardness and wearability of stator and rotor can be effectively improved, it is ensured that stator and turn
Son adapts to severe working environment, improves the functional reliability of adjusting means, extends the adjusting means life-span, and stator, rotor are adopted
With aluminium alloy essence extrusion forming blank, short with process time beat, the cost of charp tool is low, the advantages of lightweight.
Exemplary description is carried out to the present invention above in conjunction with accompanying drawing, it is clear that concrete implementation of the present invention is not by above-mentioned
The restriction of mode, if the various improvement that method of the present invention design and technical scheme are carried out are employed, or it is not improved by this
The design of invention and technical scheme directly apply to other occasions, within the scope of the present invention.
Claims (3)
1. a kind of engine cam timing angle adjusting means, described adjusting means includes rotor (1), stator (2), belt wheel
(12) it is fixedly connected with stator (2) by bolt and alignment pin (21), rotor (1) is fixedly connected with camshaft (3), rotor (1)
It is upper that multiple rudder pieces (4) are set, multiple die cavities (5) are set on stator (2), each rudder piece (4) is movably arranged on a die cavity (5)
Interior, each rudder piece (4) both sides forms respectively oil pocket A (6) and oil pocket B (7), oil pocket A (6) and rotor oil duct A between die cavity (5)
(8) connect, oil pocket B (7) is connected with rotor oil duct B (9), and on the bottom surface of a die cavity (5) of stator (2) locking hole is arranged
(10), locking component (11), described locking hole are set on the rudder piece (4) in the die cavity (5) that locking hole (10) is set
(10) connect with rotor oil duct A (8)；
Leaf spring (22) and plastic sealing strip (23), plastic sealing strip are respectively mounted on each rudder piece (4) of described rotor (1)
(23) it is set to contact the structure of sealing with stator (2) die cavity (5) inwall；
Described locking component (11) includes the open hole liners (13) being arranged on a rudder piece (4), elastic pressuring spring element (14)
Lower end is connected with the bottom for arranging open hole liners (13), and rudder piece (4) bottom is provided with oil leak hole and connects with rotor oil duct B (9), elasticity
Compression spring element (14) other end is connected with lock pin (15), and during rotor oil duct A (8) non-oil-feed, lock pin (15) is configured to
The structure being inserted in locking hole (10)；
Described rotor (1) and stator (2) is aluminum alloy materials, and rotor (1) is connected with camshaft (3) by centre bolt (20)
Connect, rotor oil duct A (8) is connected with the centre bolt oil duct (25) arranged on the centre bolt (20) of camshaft (3), described turns
Seed oil road B (9) is connected with camshaft oil gallery (26)；
Described stator (2) is fixedly connected by alignment pin (21) and multiple connecting bolts with belt wheel (12) side, stator (2)
Arrange in edge portion (16) along the edge portion groove (17) of (16) a weeks, arrange along belt wheel (12) on described belt wheel (12) side
The concave plane (18) of side arrangement, the interior clamp viton seal ring (19) of described groove (17), groove (17) and concave plane
(18) sealing structure is formed between.
2. engine cam timing angle adjusting means according to claim 1, it is characterised in that：Described rotor
(1) it is fixedly connected with camshaft (3) by centre bolt (20).
3. one kind is according to the processing method of the arbitrary described engine cam timing angle adjusting means of claim 1-2, its
It is characterised by：The stator (2) of adjusting means plus man-hour, the internal die cavity (5) of stator (2) and outer shape by essence extrusion process into
Type, stator (2) blank processing end face, then surface aluminum alloy anode hardening oxidation is carried out to stator (2), stator (2) is machined,
The rudder piece (4) of rotor (1) is molded by smart extrusion process, rotor (1) blank processing front/rear end, then carries out surfaces of aluminum to rotor
Alloy anode hardening oxidation, rotor (1) is machined；
The stator (2) of described adjusting means plus man-hour, stator (2) blank only processes front/rear end and rudder piece (4) near die cavity
(5) one side, when carrying out surface aluminum alloy anode hardening oxidation to stator (2), oxide thickness control 5um -45um it
Between, stator (2) case hardness reaches more than HV400, and stator (2) is machined；The rotor (1) of adjusting means plus man-hour, rotor
(1) blank only processes front/rear end, when carrying out surface aluminum alloy anode hardening oxidation to rotor (1), rotor (1) surface film oxide
Between 5um -45um, case hardness reaches more than HV400 to THICKNESS CONTROL, and rotor (1) is machined.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121585.7A CN104791037B (en) | 2015-03-19 | 2015-03-19 | Engine cam shaft timing angle adjusting device and machining method of adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121585.7A CN104791037B (en) | 2015-03-19 | 2015-03-19 | Engine cam shaft timing angle adjusting device and machining method of adjusting device |
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| Publication Number | Publication Date |
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| CN104791037A CN104791037A (en) | 2015-07-22 |
| CN104791037B true CN104791037B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510121585.7A Active CN104791037B (en) | 2015-03-19 | 2015-03-19 | Engine cam shaft timing angle adjusting device and machining method of adjusting device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11066966B2 (en) | 2017-12-18 | 2021-07-20 | Schaeffler Technologies AG & Co. KG | Device for adjusting camshaft phase |
| DE102018113977A1 (en) * | 2018-06-12 | 2019-12-12 | ECO Holding 1 GmbH | Camshaft unit and method for producing a camshaft unit |
| US10900387B2 (en) * | 2018-12-07 | 2021-01-26 | Husco Automotive Holdings Llc | Mechanical cam phasing systems and methods |
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| CN203570376U (en) * | 2013-08-31 | 2014-04-30 | 杰锋汽车动力***股份有限公司 | Timing correction phase position adjusting device for cam shaft |
| CN204552861U (en) * | 2015-03-04 | 2015-08-12 | 奇瑞汽车股份有限公司 | A kind of oil gear and motor |
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| JP2001132482A (en) * | 1999-11-01 | 2001-05-15 | Unisia Jecs Corp | Valve timing control device for internal combustion engine |
| CN102562206A (en) * | 2012-01-18 | 2012-07-11 | 芜湖杰锋汽车动力***有限公司 | Variable valve timing distribution regulating device and method for improving mechanical property of variable valve timing distribution regulating device |
| CN202673381U (en) * | 2012-05-18 | 2013-01-16 | 芜湖杰锋汽车动力***有限公司 | Changeable air valve timing gas distribution adjusting device |
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