CN106761997A - Assembling camshaft - Google Patents
Assembling camshaft Download PDFInfo
- Publication number
- CN106761997A CN106761997A CN201610848627.1A CN201610848627A CN106761997A CN 106761997 A CN106761997 A CN 106761997A CN 201610848627 A CN201610848627 A CN 201610848627A CN 106761997 A CN106761997 A CN 106761997A
- Authority
- CN
- China
- Prior art keywords
- camshaft
- cam
- driving wheel
- housing
- sliding bearing
- 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
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims 3
- 238000002347 injection Methods 0.000 description 28
- 239000007924 injection Substances 0.000 description 28
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000009826 distribution Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 238000005242 forging Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F01L1/053—Camshafts overhead type
-
- 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
-
- 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
- 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
-
- 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
- F01L2001/0475—Hollow camshafts
-
- 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
- F01L2001/0476—Camshaft bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
According to an embodiment of the present, camshaft device has a cam shaft housing, a camshaft being arranged in cam shaft housing and at least one first cams and second cam, second cam is more than at least one first cams, and is rigidly connected with camshaft.Additionally, the camshaft device has a driving wheel, the driving wheel and the second cam or camshaft are mechanically rigidly connected, while also having a sliding bearing, the sliding bearing is axially arranged between driving wheel and the second cam.The bearing of sliding bearing is set on camshaft shell or on the bearing cap in cam shaft housing.Second cam or driving wheel or the nut being tightened on camshaft have the running surface of sliding bearing.
Description
Related application
The present invention relates to it is a kind of it is with injection cam, in particular for being driven into the independent post of the Diesel engine of directly spray device
The assembling camshaft of plug injection pump (plug-in injection pump).
Background of invention
All kinds of injections with different type jet pump are had been disclosed for for the Diesel engine with directly spray device
System.Can be used has isolated, distribution formula or tandem jet pump.The structure type of independent jet pump is sprayed for independent plunger
Oil pump (also referred to as plug type injection pump).One group of plug type injection pump is functionally equivalent to a tandem jet pump at it, but
Each cylinder of engine is controlled by single plug type injection pump.Highest can be realized about by plug type injection pump
Pressure and the two-stage injection of 2000bar.
High pressure plug type injection pump can be used for common rail (CR) spraying system, usually (axial direction) piston comprising piston
Pump, the piston is moved in cylinder in a sealing fashion.Piston can enter line period by eccentric wheel (such as the cam of camshaft)
Property movement, in this regard, eccentric wheel with by spraying system supply fuel oil internal combustion engine be connected.In order to realize particularly compact integration knot
Structure, has disclosed, this class axial poiston pump is plug type injection pump, and the injection pump may be inserted into opening for engine components
(hence obtained one's name " plug type injection pump ") in hole, and be bolted together with engine components in perforate.Installed in starting
High pressure plug type injection pump in machine crankshaft case and by camshaft actuated conveys the bavin for supplying the diesel oil in memory (common rail)
Oil turbine spraying system is made in the A1 of patent DE 195 08 445 (Kloeckner Humboldt Deutz joint-stock companies)
It is open.
In order to save the structure space of single common rail high-pressure injection pump in diesel engine, it is possible to use above-mentioned high pressure plug type
Injection pump replaces common rail high-pressure injection pump.The high pressure plug type injection pump is generally driven by camshaft, and camshaft then leads to
Odontoid belt is crossed to be connected with bent axle.In order to (can in the ideal case use one by plug type injection pump as few as possible
Plug type injection pump) required emitted dose is provided, it is that (every turn can realize two using multi-level cam to compare interesting way
With the injection cam of up stroke).Multi-level cam is compared with significantly larger diameter with single-stage cam or bipolar cam, right
This, in forging multi-level cam it is envisaged that the material upsetting of larger injection cam only can be directly in camshaft
End carry out.
Brief summary of the invention
Task of the invention is that production in a straightforward manner has the camshaft of relatively large cam.
Above-mentioned task is solved by camshaft device according to claim 1.Different embodiments of the invention
With the explanation object that improved form is appended claims.
A kind of camshaft device has been described below.According to the example of foregoing invention, the camshaft device has one
Individual cam shaft housing, one be arranged on there is in cam shaft housing at least one first cams and a cam for the second cam
Axle, second cam is more than at least one first cams, and is rigidly connected with camshaft.Additionally, above-mentioned camshaft dress
Putting also has a driving wheel, and the driving wheel is mechanically rigidly connected with the second cam or camshaft, while
Also there is a sliding bearing, the sliding bearing is axially arranged between driving wheel and the second cam.The bearing of sliding bearing
It is set on cam shaft housing or in the bearing cap by cam shaft housing.Second cam or driving wheel are screwed
Nut on camshaft has the running surface of sliding bearing.
In addition present invention also describes the production method of camshaft device.
Brief description of the drawings
The hereinafter shown with reference to the accompanying drawings embodiment of the present invention is described in detail.Schematic diagram is not Qiang Zhiyaoqiud
By actual proportions, present invention is also not necessarily limited to shown viewpoint.Conversely, its object is to be said to the principle that the present invention is based on
It is bright.
Fig. 1 shows the section of the Diesel engine perspective view with common-rail injection system；
Fig. 2 shows the side view of schematic diagram shown in Fig. 1；
Fig. 3 shows the sectional view by cam shaft housing according to the first embodiment of the invention；
Fig. 4 shows the sectional view by cam shaft housing according to second embodiment of the invention；
Fig. 5 shows the sectional view by cam shaft housing according to the third embodiment of the invention；
Fig. 6 is shown according to the 4th kind of sectional view by cam shaft housing of embodiment of the invention；
Fig. 7 is shown according to the 5th kind of sectional view by cam shaft housing of embodiment of the invention；
Same reference numerals in accompanying drawing represent identical, correspondence or similar part.
Specific embodiment
Fig. 1 and 2 is relative to illustrate in detail the diesel engine part containing annex.Specific schematic diagram is merely illustrative, in actual reality
Apply it is of the invention during may have entirely different outward appearance.Hereinafter only to understanding embodiment needed for engine components
Illustrate.Especially cam shaft housing is described in detail.
Fig. 1 is the schematic upper perspective view of Diesel engine.The cylinder containing cylinder cover 2 is can see in the bottom of schematic diagram
Seat (engine cylinder-body).There is cam shaft housing 1 on the top of schematic diagram, camshaft is provided with wherein (see Fig. 3 to 7).
There is the toothed belt wheel 7 for drive cam shaft and odontoid belt 8 in the left side of schematic diagram, odontoid belt is around odontoid belt
Wheel 7 is moved.Air collector 6 (also referred to as air cartridge) is can see on the right side of schematic diagram.
Cam shaft housing 1 is held with a casing cover 9 thereon, and common rail distribution pipe 5 (track) is provided with the casing cover.
Connecting tube between common rail distribution pipe 5 and plug type injection pump 4 is represented using reference number 5a.Common rail distribution pipe 5 and common rail are sprayed
Connecting tube between emitter 3 is represented using reference number 5b.
Fig. 2 is the left lateral sides view of Fig. 1.Air collector is cast out in order to more very clear in fig. 2.Can see
To plug type injection pump 4, the end of cam shaft housing 1 and camshaft 10, attached casing cover 9 and toothed belt wheel 7, common rail point
Pipe arrangement 5 and plug type injection pump 4 to distribution pipe 5 connecting tube 5a (pressure pipe).As described above, camshaft 10 uses multistage convex
Wheel, will pass through needed for plug type injection pump (using a plug type injection pump in the ideal case) as few as possible is provided
Emitted dose.But multi-level cam is compared with significantly larger diameter with single-stage or double-lift cam.Multi-level cam therefore cannot be with
Camshaft is cast or is forged as an entirety.After the production for completing multi-level cam by forging method, only can be by
Multi-level cam is formd not in the upsetting of cam the tip of the axis (or extruding), this design to camshaft (and whole spraying system)
Expect the limitation for occurring.
Fig. 3 is the cross-sectional view by the part of cam shaft housing 1 according to an embodiment of the present invention.Section passes through
The longitudinal axis of camshaft 10 is crossed, and perpendicular to casing cover 9.In an illustrated embodiment, either larger multi-level cam 13, or
Toothed belt wheel 7 is each attached on the conical seat of camshaft.The conical seat 20 of toothed belt wheel 7 and camshaft 10 constitutes a cone
Shape extruding connection, thus, toothed belt wheel is pressed on conical seat 20 by nut 23 (such as simple hex nut).
Multi-level cam 13 and camshaft 10 constitute propeller boss and connect by rib key 12, in this regard, multi-level cam 13 can also be set
On the conical seat 14 of camshaft 10.In the above-described embodiments, multi-level cam 13 by one be tightened on camshaft 10 it is special
It is pressed on conical seat 14 (tapered squeezing connection) with nut 15.Rib key 12 is used to accurately position multi-level cam 13.
Specialized nut 15 is essentially a sleeve (hollow cylinder), and with internal thread, (camshaft 10 has on the internal partial wall of sleeve
There is corresponding external screw thread).The other parts and camshaft 10 of sleeve lining are constituted and coordinate 17 (such as interference fits, gapless).
In the mounted state, be pressed on multi-level cam 13 on conical seat 14 by sleeve end face.By blind-mate 17, camshaft 10
Bearing is conducted on cam shaft housing 1.
The outer surface (shell surface) of specialized nut 15 is while the running surface as sliding bearing 18.Bearing holder (housing, cover) can be convex
Take turns a part for shaft housing 1 or in the shell wall of cam shaft housing.Sliding bearing 18 can also be that camshaft 10 is worn
Cross the perforate of the shell wall of camshaft shell.As common sliding bearing, in running surface (outside of specialized nut 15)
Simmer ring 19 is provided with and bearing holder (housing, cover) (cam shaft housing 1) between.Except sliding bearing 18, camshaft can also be by slip
Bearings are in other positions.The camshaft bearing hook fixed by bolt 11 for belonging to sliding bearing is carried out with reference number 21
Represent.Conventional (smaller) cam 13 ' is provided with camshaft 10 between axle journal.Cam 13 ' and the entirety of camshaft 10 are entered
Row production.
The assembling process of the assembling camshaft of the embodiment according to Fig. 3 is described below.First, will be larger many
In the cam shaft housing 1 (without cover plate 9) of the level insertion perforate of cam 13.Then, by rib key insertion conical seat 14 attached groove in, it is convex
Hub of the wheel shaft 10 through multi-level cam 13.The diameter of conical seat 20 is less than the diameter of conical seat 14, therefore can smoothly be through to
At conical seat 14.Then, camshaft 10 is fixed in cam shaft housing 1 by bearing bracket 21 and bolt 11.Then by sliding axle
Pressure-bearing enters in cam shaft housing, and be tightened in specialized nut 15 on axle by (in the left side of Fig. 3), and thus multi-level cam 13 is pressed in
On conical seat 14.Then Simmer ring 19 is fixed, casing cover 9 is installed, and toothed belt wheel 7 is pressed on taper by nut 20
On seat 20.
Embodiment according to Fig. 4 is very similar with the above-described embodiment according to Fig. 3.Only sliding bearing 18 and thus caused
Being had differences through method in cam shaft housing of camshaft 10.The right part of schematic diagram shown in Fig. 4, especially bearing bracket
21 is identical with above-described embodiment in practice with bolt 11 and smaller cam 13 ' therein, therefore does not continue to explanation.Together
When, the conical seat 14 for being fixed thereon multi-level cam 13 by rib key 12 is also identical with shown in Fig. 3.But it is by it that multistage is convex
Wheel 13 is pressed on nuts 15 on conical seat 14 has simpler structure, because nut 15 is in the above-described embodiments and non-slip
The building block of bearing.Nut 15 can also be conventional hex nut.
Toothed belt wheel 7 also and it is identical according to the embodiment of Fig. 3 be fixed on the conical seat 20 of camshaft 10, it is right
This, toothed belt wheel 7 and camshaft constitute tapered squeezing connection, and in tapered squeezing connection, toothed belt wheel 7 is by nut
23 are pressed on conical seat 20.Toothed belt wheel 7 (along the rotation direction of principal axis of camshaft 10) is wider than the tooth form skin of above-described embodiment
Belt wheel, and radially with a convex shoulder, its shell surface (along the circumferential direction) constitutes the running surface of sliding bearing 18.Sliding axle
The bearing holder (housing, cover) for holding 18 can be a part for cam shaft housing 1 or in the outer wall of cam shaft housing.Sliding bearing 18
Therefore can also camshaft 10 through cam shaft housing shell wall perforate.It is identical with above-described embodiment, (it is located in running surface
On the convex shoulder of toothed belt wheel 7) and bearing holder (housing, cover) (cam shaft housing 1) be provided with Simmer ring 19.In other respects, according to Fig. 4
Embodiment it is identical with the above-described embodiment according to Fig. 3.
The assembling process of the assembling camshaft of the embodiment according to Fig. 4 is described below.First, will be larger many
In the cam shaft housing 1 (without cover plate 9) of the level insertion perforate of cam 13.Then, by rib key insertion conical seat 14 attached groove in, it is convex
Hub of the wheel shaft 10 through multi-level cam 13.The diameter of conical seat 20 is less than the diameter of conical seat 14, therefore can smoothly be through to
At conical seat 14.Then, camshaft 10 is fixed in cam shaft housing 1 by bearing bracket 21 and bolt 11.Then by sliding axle
Pressure-bearing enters in cam shaft housing, and be tightened in specialized nut 15 on axle by (in the left side of Fig. 4), and thus multi-level cam 13 is pressed in
On conical seat 14.During Simmer ring 19 then to insert the sliding bearing sleeve of cam shaft housing 1, by nut 20 by odontoid belt
Wheel 7 is pressed on conical seat 20, and then casing cover 9 is installed on cam shaft housing 1.
Fig. 5 shows another embodiment of assembling camshaft, for the embodiment, multi-level cam 13 and tooth form skin
The integrated part of belt wheel 7.In other words, toothed belt wheel 7 axially has the member segments for constituting multi-level cam 13.Meanwhile,
Multi-level cam 13 (toothed belt wheel 7) with a centre bore (cylindrical hole, and camshaft 10 rotating shaft coaxle), the centre bore
Bearing holder (housing, cover) as sliding bearing 18.Cam shaft housing 1 has a sleeve 16, and the sleeve-shaped is hollow cylinder, is cam
The integrated part of shaft housing 1 is rigidly connected with cam shaft housing.Camshaft 10 passes through sleeve 16.Sleeve
Centre bore in 16 outer enclosure face and multi-level cam 13 constitutes sliding bearing 18.When camshaft is assembled, toothed belt wheel 7
Back-off is carried out by sleeve 16 with multi-level cam 13, thus hub of the camshaft 10 through toothed belt wheel 7.Toothed belt wheel 7
Hub constitutes tapered squeezing connection with camshaft 10 as above-described embodiment, in this regard, toothed belt wheel 7 is by (the example of nut 23
Such as hex nut) it is pressed on the conical seat 20 of camshaft 10.
According to above-described embodiment, multi-level cam 13 is supported directly on cam shaft housing 1 that (sliding bearing 18 is located at multistage convex
Between wheel 13 and sleeve 16) so that the support force of multi-level cam 13 is directly conducted to cam shaft housing 1.Multi-level cam is straight
Connected toothed belt wheel 7 (non-indirectly by camshaft 10) to be driven, because toothed belt wheel 7 and multi-level cam 13 are one
Body part.One is set between the convex shoulder of cam shaft housing 1 and toothed belt wheel 7 similar with the above-described embodiment according to Fig. 4
Simmer ring 19.That is, Simmer ring is arranged between multi-level cam 13 and odontoid belt 8.Miscellaneous part, i.e. bearing
Hook 21 is substantially identical with above-described embodiment with casing cover with bolt 11, less cam 13 ', therefore saying for correlation is not repeated
It is bright.
The assembling process of the assembling camshaft of the embodiment according to Fig. 5 is hereinafter briefly described.First, by cam
Perforate of the axle 10 through cam shaft housing 1 (i.e. through sleeve 16).Then, camshaft 10 is consolidated by bearing bracket 21 and bolt 11
It is scheduled on cam shaft housing 1.Toothed belt wheel 7 and multi-level cam 13 are externally attached on camshaft 10, and are caused multistage convex
Wheel 13 is at least partly pushed at the sleeve 16 of cam shaft housing 1, while the hub of toothed belt wheel 7 to be pushed into the taper of camshaft 10
At seat 20.Toothed belt wheel 7 is pressed on the conical seat 20 of camshaft 10 by nut 23.Finally casing cover 9 is attached to
Can complete to install on cam shaft housing 1.Multi-level cam 13 is supported on the outside of cam shaft housing 1 (being located on sleeve 16), and
Sealed by Simmer ring 19.
Fig. 6 shows another embodiment of assembling camshaft, the embodiment and according to above-described embodiment of Fig. 3 and 4 not
It is that multi-level cam 13 and camshaft 10 not constitute a tapered squeezing and connect with part, but a frictional connection, in this regard, many
Level cam 13 is pressed on the end face 33 of camshaft 10 by bolt 27, so as to be formed between multi-level cam 13 and camshaft 10
Frictional fit is connected.Bolt 27 by centre bore pass through multi-level cam 13, and with the rotating shaft coaxle of cam 10.By being arranged on
The end of camshaft 10 is put during the middle collar 60 can be put based on camshaft 10 to multi-level cam 13.Relative to camshaft 10
The side of multi-level cam 13, multi-level cam have one and camshaft 10 rotating shaft coaxle shaft part 10 '.Shaft part 10 ' is due to bolt
27 is hollow dress through mobile centre bore.The shaft part 10 ' that multi-level cam 13 is provided with can be considered as " extension device " in practice
Or the building block of camshaft 10.A conical seat 20 is provided with the end of the shaft part 10 relative with multi-level cam 13, at this
Being compressed on conical seat has toothed belt wheel 7 (tapered squeezing connects same above-described embodiment).Toothed belt wheel 7 is compressed by bolt 27
On conical seat 20.That is, multi-level cam 13 is fixed on camshaft 10 (frictional connection) by unique centre bolt, and will
Toothed belt wheel 7 is fixed on the shaft part 10 ' of multipole cam 13.
Similar with the specialized nut 15 being tightened in described in Fig. 3 on camshaft, the shaft part 10 ' of multi-level cam 13 also constitutes slip
The running surface of bearing 18.For the reason for assembling, the bearing holder (housing, cover) (sleeve 16) for being attached to sliding bearing 18 non-immediate is arranged on
In cam shaft housing 1, but in single side casings lid 9 ' (bearing cap), shaft part 10 ' is pressed in toothed belt wheel 7
Go forward, but after multi-level cam 13 and shaft part 10 ' are pushed to the putting at the middle collar 26 of camshaft 10, side casings lid is installed to
On cam shaft housing 1.Equally, Simmer ring 19 is radially arranged between side casings lid 9 ' and shaft part 10 ' and (exists vertically
Between sliding bearing 18 and toothed belt wheel 7).Miscellaneous part, i.e. bearing bracket 21 and bolt 11, less cam 13 ' and shell
Lid is substantially identical with above-described embodiment, therefore the explanation of correlation is not repeated.
The assembling process of the assembling camshaft of the embodiment according to Fig. 6 is hereinafter briefly described.First, camshaft
10 are inserted into cam shaft housing 1, and then, camshaft 10 is fixed in cam shaft housing 1 by bearing bracket 21 and bolt 11.
Then, multi-level cam 13 is pushed to the putting at the middle collar 26 of camshaft 10, and bearing cap 9 ' and its built-in sleeve 16 are pushed to multistage
The side of the shaft part 10 ' of cam 13, thus, constitutes sliding bearing 18 between shaft part 10 ' and sleeve 16.Then, bearing cap 9 '
It is fixed on cam shaft housing 10 by bolt 32.Then, Simmer ring 19 is from outside insertion sleeve 16 (bearing holder (housing, cover)).So
Afterwards, toothed belt wheel 7 is pushed on the conical seat 20 of shaft part 10 '.The He of toothed belt wheel 7 can have both been fixed by centre bolt 17
Tapered squeezing connection between the conical seat 20 of shaft part 10 ', it is also possible to the end face 33 and multi-level cam 13 of fixed camshaft 10 it
Between frictional connection.Finally, complete to install by casing cover 9 is installed on cam shaft housing 1.
Fig. 7 shows the embodiment of another assembling camshaft similar with embodiment illustrated in fig. 6.According to the implementation of Fig. 7
Example, the integrated building block of the non-multi-level cam 13 of shaft part 10 ', but the unitary member of toothed belt wheel.Multi-level cam 13
In this case upsetting (or hot charging) is carried out in the end of camshaft 10.In this case, multi-level cam 13 is camshaft 10
Integrated building block, as described above, the situation is only arranged on camshaft 10 in (relatively large) multi-level cam 13
Just can smoothly be realized during end.
In the above-described embodiments, shaft part 10 ' has a conical seat (truncated cone in its end relative to toothed belt wheel 7
Body), the conical seat may be inserted into the corresponding taper hole 14 ' in camshaft, to constitute tapered squeezing connection.Same above-described embodiment
Shown in (Fig. 6), perforate of the shaft part 10 ' with one and the rotating shaft coaxle of camshaft 10, bolt 27 passes through the perforate, and the bolt can
So that in the center internal thread for screwing in camshaft (similar to Fig. 6), thus, toothed belt wheel 7 and shaft part 10 ' are pressed into camshaft 10
Taper hole 14 in, and formed frictional fit connection.
With shown in the embodiment according to Fig. 6, shaft part 10 ' constitutes the running surface of sliding bearing 18.For the reason for assembling,
It is attached to that the bearing holder (housing, cover) of sliding bearing 18 (sleeve 16) is non-immediate to be arranged in cam shaft housing 1, but such as according to the implementation of Fig. 6
It is arranged in single side casings lid 9 ' (bearing cap) described in example, camshaft 10 is pressed into toothed belt wheel 7 and shaft part 10 '
Taper hole in before, side casings lid is installed on cam shaft housing 1 (be for example fixed by bolt 32).Equally, axle is close
Seal ring 19 is radially arranged between the sleeve 16 of side casings lid 9 ' and shaft part 10 ' (vertically in sliding bearing 18 and tooth
Between shape belt pulley 7).Miscellaneous part, i.e. bearing bracket 21 and bolt 11, less cam 13 ' and casing cover substantially with it is above-mentioned
Embodiment is identical, therefore the explanation of correlation is not repeated.
The assembling process of the assembling camshaft of the embodiment according to Fig. 7 is hereinafter briefly described.First, camshaft
10 are inserted into cam shaft housing 1.Then, camshaft 10 is fixed in cam shaft housing 1 by bearing bracket 21 and bolt 11.
Then, by the sleeve 16 of toothed belt wheel 7 and its shaft part 10 ' insertion bearing cap 9 ', in this regard, firstly the need of by Simmer ring 19
In insertion sleeve.The truncated cone of the end of shaft part 10 ' is inserted into the corresponding taper hole of camshaft 10, it is possible thereby to be based on camshaft
During rotary shaft is put to shaft part 10 '.Can cutting to the taper hole 14 of camshaft 10 and the end of shaft part 10 ' by centre bolt 17
Tapered squeezing connection between cone is fixed.Then, bearing cap is fixed on cam shaft housing 1 by bolt 32.Most
Afterwards, complete to install by casing cover 9 is installed on cam shaft housing 1.
As long as not doing other detailed descriptions, the different individual event viewpoints and single technology feature of individual separate embodiments can be with
It is mutually combined, to form other embodiments.For example, in the embodiment according to Fig. 7, in multi-level cam 13 (and taper hole 14) and
Between shaft part 10 ' be not set tapered squeezing connection, but with shown in Fig. 6 in camshaft 10 (and putting the middle collar 26) and multistage
Identical frictional connection between cam 13.Additionally, the equipment component being integrated in embodiment described herein can also
The part individually produced by multiple assembles.In the embodiment according to Fig. 6, multi-level cam 13 and shaft part 10 ' are integrated
Part, is integrally produced.Alternative is that unitary member can also be made up of two parts, for example by hot charge practice (or
Person is by other link methods) multi-level cam 13 is installed on shaft part 10 '.This feature is also applied for the shaft part 10 ' in Fig. 7
With toothed belt wheel 7.According to applicable cases, in the embodiment according to Fig. 7, bearing cap 9 ' and sleeve 16 can also be camshafts
The integrated building block of shell 9, it is possible thereby to save bolt connection (bolt 32).Generally, it is shown in various embodiments
Tapered squeezing connection can also be substituted by the connection type of other shapes or power cooperation (extruding connection).
Claims (15)
1. camshaft device, with lower component：
One cam shaft housing (1)；
One camshaft (10) being arranged in cam shaft housing (1), the camshaft (10) is with least one first cams
(13’)；
One the second cam (13), second cam (13) more than at least one first cam (13 ') and with camshaft (10)
It is rigidly connected；
One driving wheel (7), mechanically rigidity connects the driving wheel (7) with second cam (13) or the camshaft (10)
It is connected together；
One sliding bearing (18), the sliding bearing (18) is axially arranged between driving wheel (7) and the second cam (13),
Wherein, the bearing holder (housing, cover) (16) of sliding bearing is arranged in cam shaft housing (1) or on cam shaft housing (1)
In bearing cap, the second cam (13) or driving wheel (7) or rotation are located at nut (15) on camshaft (10) with sliding axle
Hold the running surface of (18).
2. camshaft device according to claim 1,
Wherein, camshaft (10) is with one first conical seat (14), and the second cam (13) is by being tightened on camshaft (10)
Nut (15) is pressed on first conical seat (14),
Wherein, the shell surface of nut (15) at least partly running surface with sliding bearing (18).
3. camshaft device according to claim 1 and 2,
Wherein, with the second conical seat (20), driving wheel (7) is tightened on camshaft (10) camshaft (10) by another
Nut (23) is pressed on the second conical seat (20).
4. camshaft device according to claim 1,
Wherein, camshaft (10) is with one first conical seat (14), and the second cam (13) is by being tightened on camshaft (10)
Nut (15) is pressed on the first conical seat,
Wherein, with a convex shoulder, its shell surface has the running surface of sliding bearing (18) to driving wheel (7).
5. camshaft device according to claim 4,
Wherein, with the second conical seat (20), driving wheel (7) is tightened on camshaft (10) camshaft (10) by another
Nut (23) is pressed on the second conical seat (20).
6. camshaft device according to claim 1,
Wherein, the second cam (13) is the integrated building block of driving wheel (7),
Wherein, with one and the coaxial perforate of camshaft (10), its inner surface constitutes sliding bearing (18) to the second cam (13)
Running surface, wherein, bearing holder (housing, cover) is surrounded in the perforate.
7. camshaft device according to claim 6,
Wherein, with a conical seat (20), driving wheel (7) is tightened on the spiral shell on camshaft (10) by another to camshaft (10)
Female (23) are pressed on the conical seat (20).
8. camshaft device according to claim 1,
Wherein, the second cam (13) has a shaft part (10 ') in its first side, and the shaft part is the one of the second cam (13)
Change building block, second side of the second cam (13) and the docking end of camshaft (10) are carried out in the way of frictional fit
Connection, the shell surface of shaft part (10 ') constitutes the running surface of sliding bearing (18).
9. camshaft device according to claim 8,
Wherein, shaft part (10 ') is hollow body, and with a conical seat (20), driving wheel (7) is pressed on the cone by bolt (27)
On shape seat, wherein, bolt (27) screws in the docking end of camshaft (10) through the hollow shaft section (10 '), same to ensure
When between camshaft (10) and the second cam (13) formed frictional fit connection.
10. camshaft device according to claim 1,
Wherein, the second cam (13) is the integrated building block of camshaft (10), in an end of camshaft (10) and convex
The docking end of wheel shaft flushes；
Wherein, with a taper hole (14 '), the shaft part (10 ') of driving wheel (7) is pressed in the taper hole (14 ') camshaft (10),
Wherein, the shell surface of shaft part (10 ') constitutes the running surface of sliding bearing (18).
11. camshaft devices according to claim 10,
Wherein, shaft part (10 ') is hollow body, and bolt (27) is through the hollow shaft section (10 '), and screws in camshaft (10),
Thus, the shaft part (10 ') of driving wheel (7) is pressed into taper hole (14 ').
12. method for producing camshaft device, it has steps of：
By in the cam shaft housing (1) of the second cam (13) insertion perforate；
During camshaft (10) and at least one first cams (13 ') are inserted into cam shaft housing (1), wherein, camshaft (10) is worn
Cross the hub of the second cam (13), and through the perforate in cam shaft housing (1)；
Nut (15) is spun to camshaft (10), so as to the second cam (13) is fixed on camshaft (10)；
Driving wheel (7) is fixed on camshaft (10) at least partially in the other places of cam shaft housing (1)；
Wherein, the nut (15) or driving wheel (7) constitute the running surface of sliding bearing, and the sliding bearing is arranged on outside camshaft
In the perforate of shell (10).
13. method for producing camshaft device, it has steps of：
During camshaft (10) with least one first cams (13 ') inserted into cam shaft housing (1), wherein, camshaft
(10) through the perforate in cam shaft housing (1)；
Driving wheel (7) is fixed on camshaft (10) at least partially in the other places of cam shaft housing (1)；
Driving wheel (7) with one second cam (13), wherein, the driving wheel (7) is arranged a set being arranged on camshaft (10)
On cylinder (16), so that the outer surface of the running surface of driving wheel (7) and sleeve (16) constitutes sliding bearing.
14. method for producing camshaft device, it has steps of：
By in insertion cam shaft housing of the camshaft (10) with least one first cams (13 ') (1)；
The second cam (13) and camshaft (10) are connected, so that the shaft part (10 ') of the second cam (13) and camshaft (10)
It is coaxially disposed, wherein, shaft part (10 ') has the running surface of sliding bearing；
Bearing cap (9 ') is installed on shaft part (10 '), wherein bearing cap (9 ') has a bearing holder (housing, cover) (16), the bearing holder (housing, cover) and axle
The running surface of section (10 ') constitutes sliding bearing；
Driving wheel (7) is fixed on cam shaft housing (1) camshaft (10) outward, thus simultaneously to the second cam (13) and convex
Connection between wheel shaft (10) is fixed.
15. method for producing camshaft device, it has steps of：
Second cam (13) of camshaft (10) ends will be arranged on at least one first cams (13 ') and one
Camshaft (10) is inserted in the cam shaft housing (1) of a perforate；
One and the rigidly connected shaft part (10 ') of driving wheel (7) are inserted into a bearing holder (housing, cover) being arranged in shell (16), thus
A sliding bearing is constituted,
Driving wheel (7) is fixed on camshaft (10), wherein the shaft part (10 ') of driving wheel (7) is convex with the second cam (13)
Wheel shaft (10) is coaxially fixed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015116116.8 | 2015-09-23 | ||
| DE102015116116.8A DE102015116116A1 (en) | 2015-09-23 | 2015-09-23 | BUILT-ON CAMSHAFT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761997A true CN106761997A (en) | 2017-05-31 |
| CN106761997B CN106761997B (en) | 2019-06-04 |
Family
ID=58224473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610848627.1A Expired - Fee Related CN106761997B (en) | 2015-09-23 | 2016-09-23 | Assemble camshaft |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20170081983A1 (en) |
| CN (1) | CN106761997B (en) |
| DE (1) | DE102015116116A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7225836B2 (en) * | 2019-01-24 | 2023-02-21 | トヨタ自動車株式会社 | internal combustion engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3602685A1 (en) * | 1985-02-11 | 1986-08-14 | Volkswagen AG, 3180 Wolfsburg | Internal combustion engine with overhead camshaft |
| JPH1181929A (en) * | 1997-09-08 | 1999-03-26 | Toyota Motor Corp | Variable valve timing mechanism of internal combustion engine |
| TW200902837A (en) * | 2007-07-12 | 2009-01-16 | Sanyang Industry Co Ltd | Arrangement for engine pressure reducing device |
| DE102009056576A1 (en) * | 2008-12-04 | 2010-06-10 | Neumayer Tekfor Holding Gmbh | Camshaft, particularly for internal combustion engine, has hollow shaft cross-sections, which are joined with cam and two bearings on housing |
| CN103711536A (en) * | 2012-09-29 | 2014-04-09 | 重庆长安汽车股份有限公司 | Variable valve timing and direct-injection gasoline engine cam shaft |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3128522A1 (en) * | 1981-07-18 | 1983-02-03 | Motoren-Werke Mannheim AG vorm. Benz Abt. stationärer Motorenbau, 6800 Mannheim | Camshaft for internal combustion engine |
| DE19508445B4 (en) | 1995-03-09 | 2004-07-08 | Deutz Ag | Fuel injection device for a self-igniting internal combustion engine |
| DE19520306C2 (en) * | 1995-06-02 | 1998-05-20 | Ford Werke Ag | Composite camshaft, in particular for internal combustion engines |
| JPH10141029A (en) * | 1996-11-13 | 1998-05-26 | Toyota Motor Corp | Valve system for internal combustion engine having valve characteristic control device |
| DE102012109689A1 (en) * | 2012-10-11 | 2014-04-17 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Valve train arrangement for actuating gas exchange valves of an internal combustion engine |
-
2015
- 2015-09-23 DE DE102015116116.8A patent/DE102015116116A1/en not_active Ceased
-
2016
- 2016-09-22 US US15/273,562 patent/US20170081983A1/en not_active Abandoned
- 2016-09-23 CN CN201610848627.1A patent/CN106761997B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3602685A1 (en) * | 1985-02-11 | 1986-08-14 | Volkswagen AG, 3180 Wolfsburg | Internal combustion engine with overhead camshaft |
| JPH1181929A (en) * | 1997-09-08 | 1999-03-26 | Toyota Motor Corp | Variable valve timing mechanism of internal combustion engine |
| TW200902837A (en) * | 2007-07-12 | 2009-01-16 | Sanyang Industry Co Ltd | Arrangement for engine pressure reducing device |
| DE102009056576A1 (en) * | 2008-12-04 | 2010-06-10 | Neumayer Tekfor Holding Gmbh | Camshaft, particularly for internal combustion engine, has hollow shaft cross-sections, which are joined with cam and two bearings on housing |
| CN103711536A (en) * | 2012-09-29 | 2014-04-09 | 重庆长安汽车股份有限公司 | Variable valve timing and direct-injection gasoline engine cam shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015116116A1 (en) | 2017-03-23 |
| CN106761997B (en) | 2019-06-04 |
| US20170081983A1 (en) | 2017-03-23 |
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